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Message-ID: <20121210154348.GA9511@sgi.com>
Date: Mon, 10 Dec 2012 09:43:48 -0600
From: Cliff Wickman <cpw@....com>
To: HATAYAMA Daisuke <d.hatayama@...fujitsu.com>
Cc: vgoyal@...hat.com, kexec@...ts.infradead.org, ptesarik@...e.cz,
linux-kernel@...r.kernel.org, kumagai-atsushi@....nes.nec.co.jp,
""@jp.fujitsu.com
Subject: Re: [PATCH] makedumpfile: request the kernel do page scans
On Mon, Dec 10, 2012 at 09:59:29AM +0900, HATAYAMA Daisuke wrote:
> From: Cliff Wickman <cpw@....com>
> Subject: Re: [PATCH] makedumpfile: request the kernel do page scans
> Date: Mon, 19 Nov 2012 12:07:10 -0600
>
> > On Fri, Nov 16, 2012 at 03:39:44PM -0500, Vivek Goyal wrote:
> >> On Thu, Nov 15, 2012 at 04:52:40PM -0600, Cliff Wickman wrote:
> >> >
> >> > Gentlemen,
> >> >
> >> > I know this is rather late to the game, given all the recent work to speed
> >> > up makedumpfile and reduce the memory that it consumes.
> >> > But I've been experimenting with asking the kernel to scan the page tables
> >> > instead of reading all those page structures through /proc/vmcore.
> >> >
> >> > The results are rather dramatic -- if they weren't I would not presume to
> >> > suggest such a radical path.
> >> > On a small, idle UV system: about 4 sec. versus about 40 sec.
> >> > On a 8TB UV the unnecessary page scan alone takes 4 minutes, vs. about 200 min
> >> > through /proc/vmcore.
> >> >
> >> > I have not compared it to your version 1.5.1, so I don't know if your recent
> >> > work provides similar speedups.
> >>
> >> I guess try 1.5.1-rc. IIUC, we had the logic of going through page tables
> >> but that required one single bitmap to be present and in constrained
> >> memory environment we will not have that.
> >>
> >> That's when this idea came up that scan portion of struct page range,
> >> filter it, dump it and then move on to next range.
> >>
> >> Even after 1.5.1-rc if difference is this dramatic, that means we are
> >> not doing something right in makedumpfile and it needs to be
> >> fixed/optimized.
> >>
> >> But moving the logic to kernel does not make much sense to me at this
> >> point of time untile and unless there is a good explanation that why
> >> user space can't do a good job of what kernel is doing.
> >
> > I tested a patch in which makedumpfile does nothing but scan all the
> > page structures using /proc/vmcore. It is simply reading each consecutive
> > range of page structures in readmem() chunks of 512 structures. And doing
> > nothing more than accumulating a hash total of the 'flags' field in each
> > page (for a sanity check). On my test machine there are 6 blocks of page
> > structures, totaling 12 million structures. This takes 31.1 'units of time'
> > (I won't say seconds, as the speed of the clock seems to be way too fast in
> > the crash kernel). If I increase the buffer size to 5120 structures: 31.0 units.
> > At 51200 structures: 30.9. So buffer size has virtually no effect.
> >
> > I also request the kernel to do the same thing. Each of the 6 requests
> > asks the kernel to scan a range of page structures and accumulate a hash
> > total of the 'flags' field. (And also copy a 10000-element pfn list back
> > to user space, to test that such copies don't add significant overhead.)
> > And the 12 million pages are scanned in 1.6 'units of time'.
> >
> > If I compare the time for actual page scanning (unnecessary pages and
> > free pages) through /proc/vmcore vs. requesting the kernel to do the
> > scanning: 40 units vs. 3.8 units.
> >
> > My conclusion is that makedumpfile's page scanning procedure is extremely
> > dominated by the overhead of copying page structures through /proc/vmcore.
> > And that is about 20x slower than using the kernel to access pages.
>
> I have not tested your patch set on the machine with 2TB due to
> reservation problem, but I already tested it on my local machine with
> 32GB and saw big performance improvement.
>
> I applied your patch set on makedumpfile v1.5.1-rc and added an option
> -N not to dump pages to focus on scanning pages part only.
>
> By this, while scanning pages in user-space took about 25 seconds,
> scanning pages in kernel-space took about 1 second.
>
> During the execution I profiled it using perf record/report and its
> results are attached files.
>
> >From this we can notice that current makedumpfile consumes large part
> of execution time for ioremap and its related processing. copy_to_user
> was less than 2% only relative to a whole processing.
>
> Looking into the codes around read method of /proc/vmcore, its call
> stack can be broken into as follows:
>
> read_vmcore
> read_from_oldmem
> copy_oldmem_page
>
> copy_oldmem_page reads the 1st kernel's memory *per page* using
> ioremap_cache and after completing it, immediately unmaps the remapped
> address using iounmap.
>
> Because ioremap/iounmap is called *per page*, this number of calling
> ioremap throught scanning a whole pages is unchanged even if
> makedumpfile's cache size is changed. This seems consistent with
> Cliff's explanation that increasing 512 entries of makedumpfile's
> cache was meaningless.
>
> I think the first step to address this issue is to introduce a kind of
> cache in read_vmcore path to reduce the number of calling
> ioremap/iounmap. Porting scanning logic into kernel-space should be
> considered if it turns out not to work enough.
>
> Thanks.
> HATAYAMA, Daisuke
(resending this note - I seem to have messed up the email header)
Hi Hatayama,
If ioremap/iounmap is the bottleneck then perhaps you could do what
my patch does: it consolidates all the ranges of physical addresses
where the boot kernel's page structures reside (see make_kernel_mmap())
and passes them to the kernel, which then does a handfull of ioremaps's
to
cover all of them. Then /proc/vmcore could look up the already-mapped
virtual address.
(also note a kludge in get_mm_sparsemem() that verifies that each
section
of the mem_map spans contiguous ranges of page structures. I had
trouble with some sections when I made that assumption)
I'm attaching 3 patches that might be useful in your testing:
- 121210.proc_vmcore2 my current patch that applies to the released
makedumpfile 1.5.1
- 121207.vmcore_pagescans.sles applies to a 3.0.13 kernel
- 121207.vmcore_pagescans.rhel applies to a 2.6.32 kernel
-Cliff
> sadump: does not have partition header
> sadump: read dump device as unknown format
> sadump: unknown format
> LOAD (0)
> phys_start : 1000000
> phys_end : 22f1000
> virt_start : ffffffff81000000
> virt_end : ffffffff822f1000
> LOAD (1)
> phys_start : 10000
> phys_end : 9b000
> virt_start : ffff880000010000
> virt_end : ffff88000009b000
> LOAD (2)
> phys_start : 100000
> phys_end : 27000000
> virt_start : ffff880000100000
> virt_end : ffff880027000000
> LOAD (3)
> phys_start : 37000000
> phys_end : 7b00d000
> virt_start : ffff880037000000
> virt_end : ffff88007b00d000
> LOAD (4)
> phys_start : 100000000
> phys_end : 880000000
> virt_start : ffff880100000000
> virt_end : ffff880880000000
> Linux kdump
> page_size : 4096
> page_size : 4096
>
> max_mapnr : 880000
>
> Buffer size for the cyclic mode: 2228224
>
> num of NODEs : 4
>
>
> Memory type : SPARSEMEM_EX
>
> mem_map (0)
> mem_map : ffffea0000000000
> pfn_start : 0
> pfn_end : 8000
> mem_map (1)
> mem_map : ffffea00001c0000
> pfn_start : 8000
> pfn_end : 10000
> mem_map (2)
> mem_map : ffffea0000380000
> pfn_start : 10000
> pfn_end : 18000
> mem_map (3)
> mem_map : ffffea0000540000
> pfn_start : 18000
> pfn_end : 20000
> mem_map (4)
> mem_map : ffffea0000700000
> pfn_start : 20000
> pfn_end : 28000
> mem_map (5)
> mem_map : ffffea00008c0000
> pfn_start : 28000
> pfn_end : 30000
> mem_map (6)
> mem_map : ffffea0000a80000
> pfn_start : 30000
> pfn_end : 38000
> mem_map (7)
> mem_map : ffffea0000c40000
> pfn_start : 38000
> pfn_end : 40000
> mem_map (8)
> mem_map : ffffea0000e00000
> pfn_start : 40000
> pfn_end : 48000
> mem_map (9)
> mem_map : ffffea0000fc0000
> pfn_start : 48000
> pfn_end : 50000
> mem_map (10)
> mem_map : ffffea0001180000
> pfn_start : 50000
> pfn_end : 58000
> mem_map (11)
> mem_map : ffffea0001340000
> pfn_start : 58000
> pfn_end : 60000
> mem_map (12)
> mem_map : ffffea0001500000
> pfn_start : 60000
> pfn_end : 68000
> mem_map (13)
> mem_map : ffffea00016c0000
> pfn_start : 68000
> pfn_end : 70000
> mem_map (14)
> mem_map : ffffea0001880000
> pfn_start : 70000
> pfn_end : 78000
> mem_map (15)
> mem_map : ffffea0001a40000
> pfn_start : 78000
> pfn_end : 80000
> mem_map (16)
> mem_map : 0
> pfn_start : 80000
> pfn_end : 88000
> mem_map (17)
> mem_map : 0
> pfn_start : 88000
> pfn_end : 90000
> mem_map (18)
> mem_map : 0
> pfn_start : 90000
> pfn_end : 98000
> mem_map (19)
> mem_map : 0
> pfn_start : 98000
> pfn_end : a0000
> mem_map (20)
> mem_map : 0
> pfn_start : a0000
> pfn_end : a8000
> mem_map (21)
> mem_map : 0
> pfn_start : a8000
> pfn_end : b0000
> mem_map (22)
> mem_map : 0
> pfn_start : b0000
> pfn_end : b8000
> mem_map (23)
> mem_map : 0
> pfn_start : b8000
> pfn_end : c0000
> mem_map (24)
> mem_map : 0
> pfn_start : c0000
> pfn_end : c8000
> mem_map (25)
> mem_map : 0
> pfn_start : c8000
> pfn_end : d0000
> mem_map (26)
> mem_map : 0
> pfn_start : d0000
> pfn_end : d8000
> mem_map (27)
> mem_map : 0
> pfn_start : d8000
> pfn_end : e0000
> mem_map (28)
> mem_map : 0
> pfn_start : e0000
> pfn_end : e8000
> mem_map (29)
> mem_map : 0
> pfn_start : e8000
> pfn_end : f0000
> mem_map (30)
> mem_map : 0
> pfn_start : f0000
> pfn_end : f8000
> mem_map (31)
> mem_map : 0
> pfn_start : f8000
> pfn_end : 100000
> mem_map (32)
> mem_map : ffffea0003800000
> pfn_start : 100000
> pfn_end : 108000
> mem_map (33)
> mem_map : ffffea00039c0000
> pfn_start : 108000
> pfn_end : 110000
> mem_map (34)
> mem_map : ffffea0003b80000
> pfn_start : 110000
> pfn_end : 118000
> mem_map (35)
> mem_map : ffffea0003d40000
> pfn_start : 118000
> pfn_end : 120000
> mem_map (36)
> mem_map : ffffea0003f00000
> pfn_start : 120000
> pfn_end : 128000
> mem_map (37)
> mem_map : ffffea00040c0000
> pfn_start : 128000
> pfn_end : 130000
> mem_map (38)
> mem_map : ffffea0004280000
> pfn_start : 130000
> pfn_end : 138000
> mem_map (39)
> mem_map : ffffea0004440000
> pfn_start : 138000
> pfn_end : 140000
> mem_map (40)
> mem_map : ffffea0004600000
> pfn_start : 140000
> pfn_end : 148000
> mem_map (41)
> mem_map : ffffea00047c0000
> pfn_start : 148000
> pfn_end : 150000
> mem_map (42)
> mem_map : ffffea0004980000
> pfn_start : 150000
> pfn_end : 158000
> mem_map (43)
> mem_map : ffffea0004b40000
> pfn_start : 158000
> pfn_end : 160000
> mem_map (44)
> mem_map : ffffea0004d00000
> pfn_start : 160000
> pfn_end : 168000
> mem_map (45)
> mem_map : ffffea0004ec0000
> pfn_start : 168000
> pfn_end : 170000
> mem_map (46)
> mem_map : ffffea0005080000
> pfn_start : 170000
> pfn_end : 178000
> mem_map (47)
> mem_map : ffffea0005240000
> pfn_start : 178000
> pfn_end : 180000
> mem_map (48)
> mem_map : ffffea0005400000
> pfn_start : 180000
> pfn_end : 188000
> mem_map (49)
> mem_map : ffffea00055c0000
> pfn_start : 188000
> pfn_end : 190000
> mem_map (50)
> mem_map : ffffea0005780000
> pfn_start : 190000
> pfn_end : 198000
> mem_map (51)
> mem_map : ffffea0005940000
> pfn_start : 198000
> pfn_end : 1a0000
> mem_map (52)
> mem_map : ffffea0005b00000
> pfn_start : 1a0000
> pfn_end : 1a8000
> mem_map (53)
> mem_map : ffffea0005cc0000
> pfn_start : 1a8000
> pfn_end : 1b0000
> mem_map (54)
> mem_map : ffffea0005e80000
> pfn_start : 1b0000
> pfn_end : 1b8000
> mem_map (55)
> mem_map : ffffea0006040000
> pfn_start : 1b8000
> pfn_end : 1c0000
> mem_map (56)
> mem_map : ffffea0006200000
> pfn_start : 1c0000
> pfn_end : 1c8000
> mem_map (57)
> mem_map : ffffea00063c0000
> pfn_start : 1c8000
> pfn_end : 1d0000
> mem_map (58)
> mem_map : ffffea0006580000
> pfn_start : 1d0000
> pfn_end : 1d8000
> mem_map (59)
> mem_map : ffffea0006740000
> pfn_start : 1d8000
> pfn_end : 1e0000
> mem_map (60)
> mem_map : ffffea0006900000
> pfn_start : 1e0000
> pfn_end : 1e8000
> mem_map (61)
> mem_map : ffffea0006ac0000
> pfn_start : 1e8000
> pfn_end : 1f0000
> mem_map (62)
> mem_map : ffffea0006c80000
> pfn_start : 1f0000
> pfn_end : 1f8000
> mem_map (63)
> mem_map : ffffea0006e40000
> pfn_start : 1f8000
> pfn_end : 200000
> mem_map (64)
> mem_map : ffffea0007000000
> pfn_start : 200000
> pfn_end : 208000
> mem_map (65)
> mem_map : ffffea00071c0000
> pfn_start : 208000
> pfn_end : 210000
> mem_map (66)
> mem_map : ffffea0007380000
> pfn_start : 210000
> pfn_end : 218000
> mem_map (67)
> mem_map : ffffea0007540000
> pfn_start : 218000
> pfn_end : 220000
> mem_map (68)
> mem_map : ffffea0007700000
> pfn_start : 220000
> pfn_end : 228000
> mem_map (69)
> mem_map : ffffea00078c0000
> pfn_start : 228000
> pfn_end : 230000
> mem_map (70)
> mem_map : ffffea0007a80000
> pfn_start : 230000
> pfn_end : 238000
> mem_map (71)
> mem_map : ffffea0007c40000
> pfn_start : 238000
> pfn_end : 240000
> mem_map (72)
> mem_map : ffffea0007e00000
> pfn_start : 240000
> pfn_end : 248000
> mem_map (73)
> mem_map : ffffea0007fc0000
> pfn_start : 248000
> pfn_end : 250000
> mem_map (74)
> mem_map : ffffea0008180000
> pfn_start : 250000
> pfn_end : 258000
> mem_map (75)
> mem_map : ffffea0008340000
> pfn_start : 258000
> pfn_end : 260000
> mem_map (76)
> mem_map : ffffea0008500000
> pfn_start : 260000
> pfn_end : 268000
> mem_map (77)
> mem_map : ffffea00086c0000
> pfn_start : 268000
> pfn_end : 270000
> mem_map (78)
> mem_map : ffffea0008880000
> pfn_start : 270000
> pfn_end : 278000
> mem_map (79)
> mem_map : ffffea0008a40000
> pfn_start : 278000
> pfn_end : 280000
> mem_map (80)
> mem_map : ffffea0008c00000
> pfn_start : 280000
> pfn_end : 288000
> mem_map (81)
> mem_map : ffffea0008dc0000
> pfn_start : 288000
> pfn_end : 290000
> mem_map (82)
> mem_map : ffffea0008f80000
> pfn_start : 290000
> pfn_end : 298000
> mem_map (83)
> mem_map : ffffea0009140000
> pfn_start : 298000
> pfn_end : 2a0000
> mem_map (84)
> mem_map : ffffea0009300000
> pfn_start : 2a0000
> pfn_end : 2a8000
> mem_map (85)
> mem_map : ffffea00094c0000
> pfn_start : 2a8000
> pfn_end : 2b0000
> mem_map (86)
> mem_map : ffffea0009680000
> pfn_start : 2b0000
> pfn_end : 2b8000
> mem_map (87)
> mem_map : ffffea0009840000
> pfn_start : 2b8000
> pfn_end : 2c0000
> mem_map (88)
> mem_map : ffffea0009a00000
> pfn_start : 2c0000
> pfn_end : 2c8000
> mem_map (89)
> mem_map : ffffea0009bc0000
> pfn_start : 2c8000
> pfn_end : 2d0000
> mem_map (90)
> mem_map : ffffea0009d80000
> pfn_start : 2d0000
> pfn_end : 2d8000
> mem_map (91)
> mem_map : ffffea0009f40000
> pfn_start : 2d8000
> pfn_end : 2e0000
> mem_map (92)
> mem_map : ffffea000a100000
> pfn_start : 2e0000
> pfn_end : 2e8000
> mem_map (93)
> mem_map : ffffea000a2c0000
> pfn_start : 2e8000
> pfn_end : 2f0000
> mem_map (94)
> mem_map : ffffea000a480000
> pfn_start : 2f0000
> pfn_end : 2f8000
> mem_map (95)
> mem_map : ffffea000a640000
> pfn_start : 2f8000
> pfn_end : 300000
> mem_map (96)
> mem_map : ffffea000a800000
> pfn_start : 300000
> pfn_end : 308000
> mem_map (97)
> mem_map : ffffea000a9c0000
> pfn_start : 308000
> pfn_end : 310000
> mem_map (98)
> mem_map : ffffea000ab80000
> pfn_start : 310000
> pfn_end : 318000
> mem_map (99)
> mem_map : ffffea000ad40000
> pfn_start : 318000
> pfn_end : 320000
> mem_map (100)
> mem_map : ffffea000af00000
> pfn_start : 320000
> pfn_end : 328000
> mem_map (101)
> mem_map : ffffea000b0c0000
> pfn_start : 328000
> pfn_end : 330000
> mem_map (102)
> mem_map : ffffea000b280000
> pfn_start : 330000
> pfn_end : 338000
> mem_map (103)
> mem_map : ffffea000b440000
> pfn_start : 338000
> pfn_end : 340000
> mem_map (104)
> mem_map : ffffea000b600000
> pfn_start : 340000
> pfn_end : 348000
> mem_map (105)
> mem_map : ffffea000b7c0000
> pfn_start : 348000
> pfn_end : 350000
> mem_map (106)
> mem_map : ffffea000b980000
> pfn_start : 350000
> pfn_end : 358000
> mem_map (107)
> mem_map : ffffea000bb40000
> pfn_start : 358000
> pfn_end : 360000
> mem_map (108)
> mem_map : ffffea000bd00000
> pfn_start : 360000
> pfn_end : 368000
> mem_map (109)
> mem_map : ffffea000bec0000
> pfn_start : 368000
> pfn_end : 370000
> mem_map (110)
> mem_map : ffffea000c080000
> pfn_start : 370000
> pfn_end : 378000
> mem_map (111)
> mem_map : ffffea000c240000
> pfn_start : 378000
> pfn_end : 380000
> mem_map (112)
> mem_map : ffffea000c400000
> pfn_start : 380000
> pfn_end : 388000
> mem_map (113)
> mem_map : ffffea000c5c0000
> pfn_start : 388000
> pfn_end : 390000
> mem_map (114)
> mem_map : ffffea000c780000
> pfn_start : 390000
> pfn_end : 398000
> mem_map (115)
> mem_map : ffffea000c940000
> pfn_start : 398000
> pfn_end : 3a0000
> mem_map (116)
> mem_map : ffffea000cb00000
> pfn_start : 3a0000
> pfn_end : 3a8000
> mem_map (117)
> mem_map : ffffea000ccc0000
> pfn_start : 3a8000
> pfn_end : 3b0000
> mem_map (118)
> mem_map : ffffea000ce80000
> pfn_start : 3b0000
> pfn_end : 3b8000
> mem_map (119)
> mem_map : ffffea000d040000
> pfn_start : 3b8000
> pfn_end : 3c0000
> mem_map (120)
> mem_map : ffffea000d200000
> pfn_start : 3c0000
> pfn_end : 3c8000
> mem_map (121)
> mem_map : ffffea000d3c0000
> pfn_start : 3c8000
> pfn_end : 3d0000
> mem_map (122)
> mem_map : ffffea000d580000
> pfn_start : 3d0000
> pfn_end : 3d8000
> mem_map (123)
> mem_map : ffffea000d740000
> pfn_start : 3d8000
> pfn_end : 3e0000
> mem_map (124)
> mem_map : ffffea000d900000
> pfn_start : 3e0000
> pfn_end : 3e8000
> mem_map (125)
> mem_map : ffffea000dac0000
> pfn_start : 3e8000
> pfn_end : 3f0000
> mem_map (126)
> mem_map : ffffea000dc80000
> pfn_start : 3f0000
> pfn_end : 3f8000
> mem_map (127)
> mem_map : ffffea000de40000
> pfn_start : 3f8000
> pfn_end : 400000
> mem_map (128)
> mem_map : ffffea000e000000
> pfn_start : 400000
> pfn_end : 408000
> mem_map (129)
> mem_map : ffffea000e1c0000
> pfn_start : 408000
> pfn_end : 410000
> mem_map (130)
> mem_map : ffffea000e380000
> pfn_start : 410000
> pfn_end : 418000
> mem_map (131)
> mem_map : ffffea000e540000
> pfn_start : 418000
> pfn_end : 420000
> mem_map (132)
> mem_map : ffffea000e700000
> pfn_start : 420000
> pfn_end : 428000
> mem_map (133)
> mem_map : ffffea000e8c0000
> pfn_start : 428000
> pfn_end : 430000
> mem_map (134)
> mem_map : ffffea000ea80000
> pfn_start : 430000
> pfn_end : 438000
> mem_map (135)
> mem_map : ffffea000ec40000
> pfn_start : 438000
> pfn_end : 440000
> mem_map (136)
> mem_map : ffffea000ee00000
> pfn_start : 440000
> pfn_end : 448000
> mem_map (137)
> mem_map : ffffea000efc0000
> pfn_start : 448000
> pfn_end : 450000
> mem_map (138)
> mem_map : ffffea000f180000
> pfn_start : 450000
> pfn_end : 458000
> mem_map (139)
> mem_map : ffffea000f340000
> pfn_start : 458000
> pfn_end : 460000
> mem_map (140)
> mem_map : ffffea000f500000
> pfn_start : 460000
> pfn_end : 468000
> mem_map (141)
> mem_map : ffffea000f6c0000
> pfn_start : 468000
> pfn_end : 470000
> mem_map (142)
> mem_map : ffffea000f880000
> pfn_start : 470000
> pfn_end : 478000
> mem_map (143)
> mem_map : ffffea000fa40000
> pfn_start : 478000
> pfn_end : 480000
> mem_map (144)
> mem_map : ffffea000fc00000
> pfn_start : 480000
> pfn_end : 488000
> mem_map (145)
> mem_map : ffffea000fdc0000
> pfn_start : 488000
> pfn_end : 490000
> mem_map (146)
> mem_map : ffffea000ff80000
> pfn_start : 490000
> pfn_end : 498000
> mem_map (147)
> mem_map : ffffea0010140000
> pfn_start : 498000
> pfn_end : 4a0000
> mem_map (148)
> mem_map : ffffea0010300000
> pfn_start : 4a0000
> pfn_end : 4a8000
> mem_map (149)
> mem_map : ffffea00104c0000
> pfn_start : 4a8000
> pfn_end : 4b0000
> mem_map (150)
> mem_map : ffffea0010680000
> pfn_start : 4b0000
> pfn_end : 4b8000
> mem_map (151)
> mem_map : ffffea0010840000
> pfn_start : 4b8000
> pfn_end : 4c0000
> mem_map (152)
> mem_map : ffffea0010a00000
> pfn_start : 4c0000
> pfn_end : 4c8000
> mem_map (153)
> mem_map : ffffea0010bc0000
> pfn_start : 4c8000
> pfn_end : 4d0000
> mem_map (154)
> mem_map : ffffea0010d80000
> pfn_start : 4d0000
> pfn_end : 4d8000
> mem_map (155)
> mem_map : ffffea0010f40000
> pfn_start : 4d8000
> pfn_end : 4e0000
> mem_map (156)
> mem_map : ffffea0011100000
> pfn_start : 4e0000
> pfn_end : 4e8000
> mem_map (157)
> mem_map : ffffea00112c0000
> pfn_start : 4e8000
> pfn_end : 4f0000
> mem_map (158)
> mem_map : ffffea0011480000
> pfn_start : 4f0000
> pfn_end : 4f8000
> mem_map (159)
> mem_map : ffffea0011640000
> pfn_start : 4f8000
> pfn_end : 500000
> mem_map (160)
> mem_map : ffffea0011800000
> pfn_start : 500000
> pfn_end : 508000
> mem_map (161)
> mem_map : ffffea00119c0000
> pfn_start : 508000
> pfn_end : 510000
> mem_map (162)
> mem_map : ffffea0011b80000
> pfn_start : 510000
> pfn_end : 518000
> mem_map (163)
> mem_map : ffffea0011d40000
> pfn_start : 518000
> pfn_end : 520000
> mem_map (164)
> mem_map : ffffea0011f00000
> pfn_start : 520000
> pfn_end : 528000
> mem_map (165)
> mem_map : ffffea00120c0000
> pfn_start : 528000
> pfn_end : 530000
> mem_map (166)
> mem_map : ffffea0012280000
> pfn_start : 530000
> pfn_end : 538000
> mem_map (167)
> mem_map : ffffea0012440000
> pfn_start : 538000
> pfn_end : 540000
> mem_map (168)
> mem_map : ffffea0012600000
> pfn_start : 540000
> pfn_end : 548000
> mem_map (169)
> mem_map : ffffea00127c0000
> pfn_start : 548000
> pfn_end : 550000
> mem_map (170)
> mem_map : ffffea0012980000
> pfn_start : 550000
> pfn_end : 558000
> mem_map (171)
> mem_map : ffffea0012b40000
> pfn_start : 558000
> pfn_end : 560000
> mem_map (172)
> mem_map : ffffea0012d00000
> pfn_start : 560000
> pfn_end : 568000
> mem_map (173)
> mem_map : ffffea0012ec0000
> pfn_start : 568000
> pfn_end : 570000
> mem_map (174)
> mem_map : ffffea0013080000
> pfn_start : 570000
> pfn_end : 578000
> mem_map (175)
> mem_map : ffffea0013240000
> pfn_start : 578000
> pfn_end : 580000
> mem_map (176)
> mem_map : ffffea0013400000
> pfn_start : 580000
> pfn_end : 588000
> mem_map (177)
> mem_map : ffffea00135c0000
> pfn_start : 588000
> pfn_end : 590000
> mem_map (178)
> mem_map : ffffea0013780000
> pfn_start : 590000
> pfn_end : 598000
> mem_map (179)
> mem_map : ffffea0013940000
> pfn_start : 598000
> pfn_end : 5a0000
> mem_map (180)
> mem_map : ffffea0013b00000
> pfn_start : 5a0000
> pfn_end : 5a8000
> mem_map (181)
> mem_map : ffffea0013cc0000
> pfn_start : 5a8000
> pfn_end : 5b0000
> mem_map (182)
> mem_map : ffffea0013e80000
> pfn_start : 5b0000
> pfn_end : 5b8000
> mem_map (183)
> mem_map : ffffea0014040000
> pfn_start : 5b8000
> pfn_end : 5c0000
> mem_map (184)
> mem_map : ffffea0014200000
> pfn_start : 5c0000
> pfn_end : 5c8000
> mem_map (185)
> mem_map : ffffea00143c0000
> pfn_start : 5c8000
> pfn_end : 5d0000
> mem_map (186)
> mem_map : ffffea0014580000
> pfn_start : 5d0000
> pfn_end : 5d8000
> mem_map (187)
> mem_map : ffffea0014740000
> pfn_start : 5d8000
> pfn_end : 5e0000
> mem_map (188)
> mem_map : ffffea0014900000
> pfn_start : 5e0000
> pfn_end : 5e8000
> mem_map (189)
> mem_map : ffffea0014ac0000
> pfn_start : 5e8000
> pfn_end : 5f0000
> mem_map (190)
> mem_map : ffffea0014c80000
> pfn_start : 5f0000
> pfn_end : 5f8000
> mem_map (191)
> mem_map : ffffea0014e40000
> pfn_start : 5f8000
> pfn_end : 600000
> mem_map (192)
> mem_map : ffffea0015000000
> pfn_start : 600000
> pfn_end : 608000
> mem_map (193)
> mem_map : ffffea00151c0000
> pfn_start : 608000
> pfn_end : 610000
> mem_map (194)
> mem_map : ffffea0015380000
> pfn_start : 610000
> pfn_end : 618000
> mem_map (195)
> mem_map : ffffea0015540000
> pfn_start : 618000
> pfn_end : 620000
> mem_map (196)
> mem_map : ffffea0015700000
> pfn_start : 620000
> pfn_end : 628000
> mem_map (197)
> mem_map : ffffea00158c0000
> pfn_start : 628000
> pfn_end : 630000
> mem_map (198)
> mem_map : ffffea0015a80000
> pfn_start : 630000
> pfn_end : 638000
> mem_map (199)
> mem_map : ffffea0015c40000
> pfn_start : 638000
> pfn_end : 640000
> mem_map (200)
> mem_map : ffffea0015e00000
> pfn_start : 640000
> pfn_end : 648000
> mem_map (201)
> mem_map : ffffea0015fc0000
> pfn_start : 648000
> pfn_end : 650000
> mem_map (202)
> mem_map : ffffea0016180000
> pfn_start : 650000
> pfn_end : 658000
> mem_map (203)
> mem_map : ffffea0016340000
> pfn_start : 658000
> pfn_end : 660000
> mem_map (204)
> mem_map : ffffea0016500000
> pfn_start : 660000
> pfn_end : 668000
> mem_map (205)
> mem_map : ffffea00166c0000
> pfn_start : 668000
> pfn_end : 670000
> mem_map (206)
> mem_map : ffffea0016880000
> pfn_start : 670000
> pfn_end : 678000
> mem_map (207)
> mem_map : ffffea0016a40000
> pfn_start : 678000
> pfn_end : 680000
> mem_map (208)
> mem_map : ffffea0016c00000
> pfn_start : 680000
> pfn_end : 688000
> mem_map (209)
> mem_map : ffffea0016dc0000
> pfn_start : 688000
> pfn_end : 690000
> mem_map (210)
> mem_map : ffffea0016f80000
> pfn_start : 690000
> pfn_end : 698000
> mem_map (211)
> mem_map : ffffea0017140000
> pfn_start : 698000
> pfn_end : 6a0000
> mem_map (212)
> mem_map : ffffea0017300000
> pfn_start : 6a0000
> pfn_end : 6a8000
> mem_map (213)
> mem_map : ffffea00174c0000
> pfn_start : 6a8000
> pfn_end : 6b0000
> mem_map (214)
> mem_map : ffffea0017680000
> pfn_start : 6b0000
> pfn_end : 6b8000
> mem_map (215)
> mem_map : ffffea0017840000
> pfn_start : 6b8000
> pfn_end : 6c0000
> mem_map (216)
> mem_map : ffffea0017a00000
> pfn_start : 6c0000
> pfn_end : 6c8000
> mem_map (217)
> mem_map : ffffea0017bc0000
> pfn_start : 6c8000
> pfn_end : 6d0000
> mem_map (218)
> mem_map : ffffea0017d80000
> pfn_start : 6d0000
> pfn_end : 6d8000
> mem_map (219)
> mem_map : ffffea0017f40000
> pfn_start : 6d8000
> pfn_end : 6e0000
> mem_map (220)
> mem_map : ffffea0018100000
> pfn_start : 6e0000
> pfn_end : 6e8000
> mem_map (221)
> mem_map : ffffea00182c0000
> pfn_start : 6e8000
> pfn_end : 6f0000
> mem_map (222)
> mem_map : ffffea0018480000
> pfn_start : 6f0000
> pfn_end : 6f8000
> mem_map (223)
> mem_map : ffffea0018640000
> pfn_start : 6f8000
> pfn_end : 700000
> mem_map (224)
> mem_map : ffffea0018800000
> pfn_start : 700000
> pfn_end : 708000
> mem_map (225)
> mem_map : ffffea00189c0000
> pfn_start : 708000
> pfn_end : 710000
> mem_map (226)
> mem_map : ffffea0018b80000
> pfn_start : 710000
> pfn_end : 718000
> mem_map (227)
> mem_map : ffffea0018d40000
> pfn_start : 718000
> pfn_end : 720000
> mem_map (228)
> mem_map : ffffea0018f00000
> pfn_start : 720000
> pfn_end : 728000
> mem_map (229)
> mem_map : ffffea00190c0000
> pfn_start : 728000
> pfn_end : 730000
> mem_map (230)
> mem_map : ffffea0019280000
> pfn_start : 730000
> pfn_end : 738000
> mem_map (231)
> mem_map : ffffea0019440000
> pfn_start : 738000
> pfn_end : 740000
> mem_map (232)
> mem_map : ffffea0019600000
> pfn_start : 740000
> pfn_end : 748000
> mem_map (233)
> mem_map : ffffea00197c0000
> pfn_start : 748000
> pfn_end : 750000
> mem_map (234)
> mem_map : ffffea0019980000
> pfn_start : 750000
> pfn_end : 758000
> mem_map (235)
> mem_map : ffffea0019b40000
> pfn_start : 758000
> pfn_end : 760000
> mem_map (236)
> mem_map : ffffea0019d00000
> pfn_start : 760000
> pfn_end : 768000
> mem_map (237)
> mem_map : ffffea0019ec0000
> pfn_start : 768000
> pfn_end : 770000
> mem_map (238)
> mem_map : ffffea001a080000
> pfn_start : 770000
> pfn_end : 778000
> mem_map (239)
> mem_map : ffffea001a240000
> pfn_start : 778000
> pfn_end : 780000
> mem_map (240)
> mem_map : ffffea001a400000
> pfn_start : 780000
> pfn_end : 788000
> mem_map (241)
> mem_map : ffffea001a5c0000
> pfn_start : 788000
> pfn_end : 790000
> mem_map (242)
> mem_map : ffffea001a780000
> pfn_start : 790000
> pfn_end : 798000
> mem_map (243)
> mem_map : ffffea001a940000
> pfn_start : 798000
> pfn_end : 7a0000
> mem_map (244)
> mem_map : ffffea001ab00000
> pfn_start : 7a0000
> pfn_end : 7a8000
> mem_map (245)
> mem_map : ffffea001acc0000
> pfn_start : 7a8000
> pfn_end : 7b0000
> mem_map (246)
> mem_map : ffffea001ae80000
> pfn_start : 7b0000
> pfn_end : 7b8000
> mem_map (247)
> mem_map : ffffea001b040000
> pfn_start : 7b8000
> pfn_end : 7c0000
> mem_map (248)
> mem_map : ffffea001b200000
> pfn_start : 7c0000
> pfn_end : 7c8000
> mem_map (249)
> mem_map : ffffea001b3c0000
> pfn_start : 7c8000
> pfn_end : 7d0000
> mem_map (250)
> mem_map : ffffea001b580000
> pfn_start : 7d0000
> pfn_end : 7d8000
> mem_map (251)
> mem_map : ffffea001b740000
> pfn_start : 7d8000
> pfn_end : 7e0000
> mem_map (252)
> mem_map : ffffea001b900000
> pfn_start : 7e0000
> pfn_end : 7e8000
> mem_map (253)
> mem_map : ffffea001bac0000
> pfn_start : 7e8000
> pfn_end : 7f0000
> mem_map (254)
> mem_map : ffffea001bc80000
> pfn_start : 7f0000
> pfn_end : 7f8000
> mem_map (255)
> mem_map : ffffea001be40000
> pfn_start : 7f8000
> pfn_end : 800000
> mem_map (256)
> mem_map : ffffea001c000000
> pfn_start : 800000
> pfn_end : 808000
> mem_map (257)
> mem_map : ffffea001c1c0000
> pfn_start : 808000
> pfn_end : 810000
> mem_map (258)
> mem_map : ffffea001c380000
> pfn_start : 810000
> pfn_end : 818000
> mem_map (259)
> mem_map : ffffea001c540000
> pfn_start : 818000
> pfn_end : 820000
> mem_map (260)
> mem_map : ffffea001c700000
> pfn_start : 820000
> pfn_end : 828000
> mem_map (261)
> mem_map : ffffea001c8c0000
> pfn_start : 828000
> pfn_end : 830000
> mem_map (262)
> mem_map : ffffea001ca80000
> pfn_start : 830000
> pfn_end : 838000
> mem_map (263)
> mem_map : ffffea001cc40000
> pfn_start : 838000
> pfn_end : 840000
> mem_map (264)
> mem_map : ffffea001ce00000
> pfn_start : 840000
> pfn_end : 848000
> mem_map (265)
> mem_map : ffffea001cfc0000
> pfn_start : 848000
> pfn_end : 850000
> mem_map (266)
> mem_map : ffffea001d180000
> pfn_start : 850000
> pfn_end : 858000
> mem_map (267)
> mem_map : ffffea001d340000
> pfn_start : 858000
> pfn_end : 860000
> mem_mapExcluding unnecessary pages : [ 0 %] Excluding unnecessary pages : [ 3 %] Excluding unnecessary pages : [ 17 %] Excluding unnecessary pages : [ 26 %] Excluding unnecessary pages : [ 34 %] Excluding unnecessary pages : [ 42 %] Excluding unnecessary pages : [ 50 %] Excluding unnecessary pages : [ 59 %] Excluding unnecessary pages : [ 67 %] Excluding unnecessary pages : [ 75 %] Excluding unnecessary pages : [ 84 %] Excluding unnecessary pages : [ 92 %] Excluding unnecessary pages : [100 %] Excluding unnecessary pages : [ 0 %] Excluding unnecessary pages : [ 13 %] Excluding unnecessary pages : [ 22 %] Excluding unnecessary pages : [ 30 %] Excluding unnecessary pages : [ 38 %] Excluding unnecessary pages : [ 47 %] Excluding unnecessary pages : [ 55 %] Excluding unnecessary pages : [ 63 %] Excluding unnecessary pages : [ 71 %] Excluding unnecessary pages : [ 80 %] Excluding unnecessary pages : [ 88 %] Excluding unnecessary pages : [ 96 %] Excluding unnecessary pages : [100 %]
> (268)
> mem_map : ffffea001d500000
> pfn_start : 860000
> pfn_end : 868000
> mem_map (269)
> mem_map : ffffea001d6c0000
> pfn_start : 868000
> pfn_end : 870000
> mem_map (270)
> mem_map : ffffea001d880000
> pfn_start : 870000
> pfn_end : 878000
> mem_map (271)
> mem_map : ffffea001da40000
> pfn_start : 878000
> pfn_end : 880000
> STEP [Excluding unnecessary pages] : 11.224292 seconds
> STEP [Excluding unnecessary pages] : 11.250834 seconds
> STEP [Copying data ] : 11.407836 seconds
> Writing erase info...
> offset_eraseinfo: 6c0eb8, size_eraseinfo: 0
>
> Original pages : 0x00000000007ec289
> Excluded pages : 0x00000000007b9efb
> Pages filled with zero : 0x0000000000000000
> Cache pages : 0x0000000000012cff
> Cache pages + private : 0x0000000000012015
> User process data pages : 0x0000000000001ece
> Free pages : 0x0000000000793319
> Remaining pages : 0x000000000003238e
> (The number of pages is reduced to 2%.)
> Memory Hole : 0x0000000000093d77
> --------------------------------------------------
> Total pages : 0x0000000000880000
>
>
> The dumpfile is saved to /mnt///127.0.0.1-2012-12-07-16:45:20/vmcore-empty-1.
>
> makedumpfile Completed.
> [ perf record: Woken up 55 times to write data ]
> [ perf record: Captured and wrote 13.735 MB /mnt///127.0.0.1-2012-12-07-16:45:20/perf.data1 (~600084 samples) ]
> sadump: does not have partition header
> sadump: read dump device as unknown format
> sadump: unknown format
> LOAD (0)
> phys_start : 1000000
> phys_end : 22f1000
> virt_start : ffffffff81000000
> virt_end : ffffffff822f1000
> LOAD (1)
> phys_start : 10000
> phys_end : 9b000
> virt_start : ffff880000010000
> virt_end : ffff88000009b000
> LOAD (2)
> phys_start : 100000
> phys_end : 27000000
> virt_start : ffff880000100000
> virt_end : ffff880027000000
> LOAD (3)
> phys_start : 37000000
> phys_end : 7b00d000
> virt_start : ffff880037000000
> virt_end : ffff88007b00d000
> LOAD (4)
> phys_start : 100000000
> phys_end : 880000000
> virt_start : ffff880100000000
> virt_end : ffff880880000000
> Linux kdump
> page_size : 4096
> page_size : 4096
>
> max_mapnr : 880000
>
> Buffer size for the cyclic mode: 2228224
>
> num of NODEs : 4
>
>
> Memory type : SPARSEMEM_EX
>
> mem_map (0)
> mem_map : ffffea0000000000
> pfn_start : 0
> pfn_end : 8000
> mem_map (1)
> mem_map : ffffea00001c0000
> pfn_start : 8000
> pfn_end : 10000
> mem_map (2)
> mem_map : ffffea0000380000
> pfn_start : 10000
> pfn_end : 18000
> mem_map (3)
> mem_map : ffffea0000540000
> pfn_start : 18000
> pfn_end : 20000
> mem_map (4)
> mem_map : ffffea0000700000
> pfn_start : 20000
> pfn_end : 28000
> mem_map (5)
> mem_map : ffffea00008c0000
> pfn_start : 28000
> pfn_end : 30000
> mem_map (6)
> mem_map : ffffea0000a80000
> pfn_start : 30000
> pfn_end : 38000
> mem_map (7)
> mem_map : ffffea0000c40000
> pfn_start : 38000
> pfn_end : 40000
> mem_map (8)
> mem_map : ffffea0000e00000
> pfn_start : 40000
> pfn_end : 48000
> mem_map (9)
> mem_map : ffffea0000fc0000
> pfn_start : 48000
> pfn_end : 50000
> mem_map (10)
> mem_map : ffffea0001180000
> pfn_start : 50000
> pfn_end : 58000
> mem_map (11)
> mem_map : ffffea0001340000
> pfn_start : 58000
> pfn_end : 60000
> mem_map (12)
> mem_map : ffffea0001500000
> pfn_start : 60000
> pfn_end : 68000
> mem_map (13)
> mem_map : ffffea00016c0000
> pfn_start : 68000
> pfn_end : 70000
> mem_map (14)
> mem_map : ffffea0001880000
> pfn_start : 70000
> pfn_end : 78000
> mem_map (15)
> mem_map : ffffea0001a40000
> pfn_start : 78000
> pfn_end : 80000
> mem_map (16)
> mem_map : 0
> pfn_start : 80000
> pfn_end : 88000
> mem_map (17)
> mem_map : 0
> pfn_start : 88000
> pfn_end : 90000
> mem_map (18)
> mem_map : 0
> pfn_start : 90000
> pfn_end : 98000
> mem_map (19)
> mem_map : 0
> pfn_start : 98000
> pfn_end : a0000
> mem_map (20)
> mem_map : 0
> pfn_start : a0000
> pfn_end : a8000
> mem_map (21)
> mem_map : 0
> pfn_start : a8000
> pfn_end : b0000
> mem_map (22)
> mem_map : 0
> pfn_start : b0000
> pfn_end : b8000
> mem_map (23)
> mem_map : 0
> pfn_start : b8000
> pfn_end : c0000
> mem_map (24)
> mem_map : 0
> pfn_start : c0000
> pfn_end : c8000
> mem_map (25)
> mem_map : 0
> pfn_start : c8000
> pfn_end : d0000
> mem_map (26)
> mem_map : 0
> pfn_start : d0000
> pfn_end : d8000
> mem_map (27)
> mem_map : 0
> pfn_start : d8000
> pfn_end : e0000
> mem_map (28)
> mem_map : 0
> pfn_start : e0000
> pfn_end : e8000
> mem_map (29)
> mem_map : 0
> pfn_start : e8000
> pfn_end : f0000
> mem_map (30)
> mem_map : 0
> pfn_start : f0000
> pfn_end : f8000
> mem_map (31)
> mem_map : 0
> pfn_start : f8000
> pfn_end : 100000
> mem_map (32)
> mem_map : ffffea0003800000
> pfn_start : 100000
> pfn_end : 108000
> mem_map (33)
> mem_map : ffffea00039c0000
> pfn_start : 108000
> pfn_end : 110000
> mem_map (34)
> mem_map : ffffea0003b80000
> pfn_start : 110000
> pfn_end : 118000
> mem_map (35)
> mem_map : ffffea0003d40000
> pfn_start : 118000
> pfn_end : 120000
> mem_map (36)
> mem_map : ffffea0003f00000
> pfn_start : 120000
> pfn_end : 128000
> mem_map (37)
> mem_map : ffffea00040c0000
> pfn_start : 128000
> pfn_end : 130000
> mem_map (38)
> mem_map : ffffea0004280000
> pfn_start : 130000
> pfn_end : 138000
> mem_map (39)
> mem_map : ffffea0004440000
> pfn_start : 138000
> pfn_end : 140000
> mem_map (40)
> mem_map : ffffea0004600000
> pfn_start : 140000
> pfn_end : 148000
> mem_map (41)
> mem_map : ffffea00047c0000
> pfn_start : 148000
> pfn_end : 150000
> mem_map (42)
> mem_map : ffffea0004980000
> pfn_start : 150000
> pfn_end : 158000
> mem_map (43)
> mem_map : ffffea0004b40000
> pfn_start : 158000
> pfn_end : 160000
> mem_map (44)
> mem_map : ffffea0004d00000
> pfn_start : 160000
> pfn_end : 168000
> mem_map (45)
> mem_map : ffffea0004ec0000
> pfn_start : 168000
> pfn_end : 170000
> mem_map (46)
> mem_map : ffffea0005080000
> pfn_start : 170000
> pfn_end : 178000
> mem_map (47)
> mem_map : ffffea0005240000
> pfn_start : 178000
> pfn_end : 180000
> mem_map (48)
> mem_map : ffffea0005400000
> pfn_start : 180000
> pfn_end : 188000
> mem_map (49)
> mem_map : ffffea00055c0000
> pfn_start : 188000
> pfn_end : 190000
> mem_map (50)
> mem_map : ffffea0005780000
> pfn_start : 190000
> pfn_end : 198000
> mem_map (51)
> mem_map : ffffea0005940000
> pfn_start : 198000
> pfn_end : 1a0000
> mem_map (52)
> mem_map : ffffea0005b00000
> pfn_start : 1a0000
> pfn_end : 1a8000
> mem_map (53)
> mem_map : ffffea0005cc0000
> pfn_start : 1a8000
> pfn_end : 1b0000
> mem_map (54)
> mem_map : ffffea0005e80000
> pfn_start : 1b0000
> pfn_end : 1b8000
> mem_map (55)
> mem_map : ffffea0006040000
> pfn_start : 1b8000
> pfn_end : 1c0000
> mem_map (56)
> mem_map : ffffea0006200000
> pfn_start : 1c0000
> pfn_end : 1c8000
> mem_map (57)
> mem_map : ffffea00063c0000
> pfn_start : 1c8000
> pfn_end : 1d0000
> mem_map (58)
> mem_map : ffffea0006580000
> pfn_start : 1d0000
> pfn_end : 1d8000
> mem_map (59)
> mem_map : ffffea0006740000
> pfn_start : 1d8000
> pfn_end : 1e0000
> mem_map (60)
> mem_map : ffffea0006900000
> pfn_start : 1e0000
> pfn_end : 1e8000
> mem_map (61)
> mem_map : ffffea0006ac0000
> pfn_start : 1e8000
> pfn_end : 1f0000
> mem_map (62)
> mem_map : ffffea0006c80000
> pfn_start : 1f0000
> pfn_end : 1f8000
> mem_map (63)
> mem_map : ffffea0006e40000
> pfn_start : 1f8000
> pfn_end : 200000
> mem_map (64)
> mem_map : ffffea0007000000
> pfn_start : 200000
> pfn_end : 208000
> mem_map (65)
> mem_map : ffffea00071c0000
> pfn_start : 208000
> pfn_end : 210000
> mem_map (66)
> mem_map : ffffea0007380000
> pfn_start : 210000
> pfn_end : 218000
> mem_map (67)
> mem_map : ffffea0007540000
> pfn_start : 218000
> pfn_end : 220000
> mem_map (68)
> mem_map : ffffea0007700000
> pfn_start : 220000
> pfn_end : 228000
> mem_map (69)
> mem_map : ffffea00078c0000
> pfn_start : 228000
> pfn_end : 230000
> mem_map (70)
> mem_map : ffffea0007a80000
> pfn_start : 230000
> pfn_end : 238000
> mem_map (71)
> mem_map : ffffea0007c40000
> pfn_start : 238000
> pfn_end : 240000
> mem_map (72)
> mem_map : ffffea0007e00000
> pfn_start : 240000
> pfn_end : 248000
> mem_map (73)
> mem_map : ffffea0007fc0000
> pfn_start : 248000
> pfn_end : 250000
> mem_map (74)
> mem_map : ffffea0008180000
> pfn_start : 250000
> pfn_end : 258000
> mem_map (75)
> mem_map : ffffea0008340000
> pfn_start : 258000
> pfn_end : 260000
> mem_map (76)
> mem_map : ffffea0008500000
> pfn_start : 260000
> pfn_end : 268000
> mem_map (77)
> mem_map : ffffea00086c0000
> pfn_start : 268000
> pfn_end : 270000
> mem_map (78)
> mem_map : ffffea0008880000
> pfn_start : 270000
> pfn_end : 278000
> mem_map (79)
> mem_map : ffffea0008a40000
> pfn_start : 278000
> pfn_end : 280000
> mem_map (80)
> mem_map : ffffea0008c00000
> pfn_start : 280000
> pfn_end : 288000
> mem_map (81)
> mem_map : ffffea0008dc0000
> pfn_start : 288000
> pfn_end : 290000
> mem_map (82)
> mem_map : ffffea0008f80000
> pfn_start : 290000
> pfn_end : 298000
> mem_map (83)
> mem_map : ffffea0009140000
> pfn_start : 298000
> pfn_end : 2a0000
> mem_map (84)
> mem_map : ffffea0009300000
> pfn_start : 2a0000
> pfn_end : 2a8000
> mem_map (85)
> mem_map : ffffea00094c0000
> pfn_start : 2a8000
> pfn_end : 2b0000
> mem_map (86)
> mem_map : ffffea0009680000
> pfn_start : 2b0000
> pfn_end : 2b8000
> mem_map (87)
> mem_map : ffffea0009840000
> pfn_start : 2b8000
> pfn_end : 2c0000
> mem_map (88)
> mem_map : ffffea0009a00000
> pfn_start : 2c0000
> pfn_end : 2c8000
> mem_map (89)
> mem_map : ffffea0009bc0000
> pfn_start : 2c8000
> pfn_end : 2d0000
> mem_map (90)
> mem_map : ffffea0009d80000
> pfn_start : 2d0000
> pfn_end : 2d8000
> mem_map (91)
> mem_map : ffffea0009f40000
> pfn_start : 2d8000
> pfn_end : 2e0000
> mem_map (92)
> mem_map : ffffea000a100000
> pfn_start : 2e0000
> pfn_end : 2e8000
> mem_map (93)
> mem_map : ffffea000a2c0000
> pfn_start : 2e8000
> pfn_end : 2f0000
> mem_map (94)
> mem_map : ffffea000a480000
> pfn_start : 2f0000
> pfn_end : 2f8000
> mem_map (95)
> mem_map : ffffea000a640000
> pfn_start : 2f8000
> pfn_end : 300000
> mem_map (96)
> mem_map : ffffea000a800000
> pfn_start : 300000
> pfn_end : 308000
> mem_map (97)
> mem_map : ffffea000a9c0000
> pfn_start : 308000
> pfn_end : 310000
> mem_map (98)
> mem_map : ffffea000ab80000
> pfn_start : 310000
> pfn_end : 318000
> mem_map (99)
> mem_map : ffffea000ad40000
> pfn_start : 318000
> pfn_end : 320000
> mem_map (100)
> mem_map : ffffea000af00000
> pfn_start : 320000
> pfn_end : 328000
> mem_map (101)
> mem_map : ffffea000b0c0000
> pfn_start : 328000
> pfn_end : 330000
> mem_map (102)
> mem_map : ffffea000b280000
> pfn_start : 330000
> pfn_end : 338000
> mem_map (103)
> mem_map : ffffea000b440000
> pfn_start : 338000
> pfn_end : 340000
> mem_map (104)
> mem_map : ffffea000b600000
> pfn_start : 340000
> pfn_end : 348000
> mem_map (105)
> mem_map : ffffea000b7c0000
> pfn_start : 348000
> pfn_end : 350000
> mem_map (106)
> mem_map : ffffea000b980000
> pfn_start : 350000
> pfn_end : 358000
> mem_map (107)
> mem_map : ffffea000bb40000
> pfn_start : 358000
> pfn_end : 360000
> mem_map (108)
> mem_map : ffffea000bd00000
> pfn_start : 360000
> pfn_end : 368000
> mem_map (109)
> mem_map : ffffea000bec0000
> pfn_start : 368000
> pfn_end : 370000
> mem_map (110)
> mem_map : ffffea000c080000
> pfn_start : 370000
> pfn_end : 378000
> mem_map (111)
> mem_map : ffffea000c240000
> pfn_start : 378000
> pfn_end : 380000
> mem_map (112)
> mem_map : ffffea000c400000
> pfn_start : 380000
> pfn_end : 388000
> mem_map (113)
> mem_map : ffffea000c5c0000
> pfn_start : 388000
> pfn_end : 390000
> mem_map (114)
> mem_map : ffffea000c780000
> pfn_start : 390000
> pfn_end : 398000
> mem_map (115)
> mem_map : ffffea000c940000
> pfn_start : 398000
> pfn_end : 3a0000
> mem_map (116)
> mem_map : ffffea000cb00000
> pfn_start : 3a0000
> pfn_end : 3a8000
> mem_map (117)
> mem_map : ffffea000ccc0000
> pfn_start : 3a8000
> pfn_end : 3b0000
> mem_map (118)
> mem_map : ffffea000ce80000
> pfn_start : 3b0000
> pfn_end : 3b8000
> mem_map (119)
> mem_map : ffffea000d040000
> pfn_start : 3b8000
> pfn_end : 3c0000
> mem_map (120)
> mem_map : ffffea000d200000
> pfn_start : 3c0000
> pfn_end : 3c8000
> mem_map (121)
> mem_map : ffffea000d3c0000
> pfn_start : 3c8000
> pfn_end : 3d0000
> mem_map (122)
> mem_map : ffffea000d580000
> pfn_start : 3d0000
> pfn_end : 3d8000
> mem_map (123)
> mem_map : ffffea000d740000
> pfn_start : 3d8000
> pfn_end : 3e0000
> mem_map (124)
> mem_map : ffffea000d900000
> pfn_start : 3e0000
> pfn_end : 3e8000
> mem_map (125)
> mem_map : ffffea000dac0000
> pfn_start : 3e8000
> pfn_end : 3f0000
> mem_map (126)
> mem_map : ffffea000dc80000
> pfn_start : 3f0000
> pfn_end : 3f8000
> mem_map (127)
> mem_map : ffffea000de40000
> pfn_start : 3f8000
> pfn_end : 400000
> mem_map (128)
> mem_map : ffffea000e000000
> pfn_start : 400000
> pfn_end : 408000
> mem_map (129)
> mem_map : ffffea000e1c0000
> pfn_start : 408000
> pfn_end : 410000
> mem_map (130)
> mem_map : ffffea000e380000
> pfn_start : 410000
> pfn_end : 418000
> mem_map (131)
> mem_map : ffffea000e540000
> pfn_start : 418000
> pfn_end : 420000
> mem_map (132)
> mem_map : ffffea000e700000
> pfn_start : 420000
> pfn_end : 428000
> mem_map (133)
> mem_map : ffffea000e8c0000
> pfn_start : 428000
> pfn_end : 430000
> mem_map (134)
> mem_map : ffffea000ea80000
> pfn_start : 430000
> pfn_end : 438000
> mem_map (135)
> mem_map : ffffea000ec40000
> pfn_start : 438000
> pfn_end : 440000
> mem_map (136)
> mem_map : ffffea000ee00000
> pfn_start : 440000
> pfn_end : 448000
> mem_map (137)
> mem_map : ffffea000efc0000
> pfn_start : 448000
> pfn_end : 450000
> mem_map (138)
> mem_map : ffffea000f180000
> pfn_start : 450000
> pfn_end : 458000
> mem_map (139)
> mem_map : ffffea000f340000
> pfn_start : 458000
> pfn_end : 460000
> mem_map (140)
> mem_map : ffffea000f500000
> pfn_start : 460000
> pfn_end : 468000
> mem_map (141)
> mem_map : ffffea000f6c0000
> pfn_start : 468000
> pfn_end : 470000
> mem_map (142)
> mem_map : ffffea000f880000
> pfn_start : 470000
> pfn_end : 478000
> mem_map (143)
> mem_map : ffffea000fa40000
> pfn_start : 478000
> pfn_end : 480000
> mem_map (144)
> mem_map : ffffea000fc00000
> pfn_start : 480000
> pfn_end : 488000
> mem_map (145)
> mem_map : ffffea000fdc0000
> pfn_start : 488000
> pfn_end : 490000
> mem_map (146)
> mem_map : ffffea000ff80000
> pfn_start : 490000
> pfn_end : 498000
> mem_map (147)
> mem_map : ffffea0010140000
> pfn_start : 498000
> pfn_end : 4a0000
> mem_map (148)
> mem_map : ffffea0010300000
> pfn_start : 4a0000
> pfn_end : 4a8000
> mem_map (149)
> mem_map : ffffea00104c0000
> pfn_start : 4a8000
> pfn_end : 4b0000
> mem_map (150)
> mem_map : ffffea0010680000
> pfn_start : 4b0000
> pfn_end : 4b8000
> mem_map (151)
> mem_map : ffffea0010840000
> pfn_start : 4b8000
> pfn_end : 4c0000
> mem_map (152)
> mem_map : ffffea0010a00000
> pfn_start : 4c0000
> pfn_end : 4c8000
> mem_map (153)
> mem_map : ffffea0010bc0000
> pfn_start : 4c8000
> pfn_end : 4d0000
> mem_map (154)
> mem_map : ffffea0010d80000
> pfn_start : 4d0000
> pfn_end : 4d8000
> mem_map (155)
> mem_map : ffffea0010f40000
> pfn_start : 4d8000
> pfn_end : 4e0000
> mem_map (156)
> mem_map : ffffea0011100000
> pfn_start : 4e0000
> pfn_end : 4e8000
> mem_map (157)
> mem_map : ffffea00112c0000
> pfn_start : 4e8000
> pfn_end : 4f0000
> mem_map (158)
> mem_map : ffffea0011480000
> pfn_start : 4f0000
> pfn_end : 4f8000
> mem_map (159)
> mem_map : ffffea0011640000
> pfn_start : 4f8000
> pfn_end : 500000
> mem_map (160)
> mem_map : ffffea0011800000
> pfn_start : 500000
> pfn_end : 508000
> mem_map (161)
> mem_map : ffffea00119c0000
> pfn_start : 508000
> pfn_end : 510000
> mem_map (162)
> mem_map : ffffea0011b80000
> pfn_start : 510000
> pfn_end : 518000
> mem_map (163)
> mem_map : ffffea0011d40000
> pfn_start : 518000
> pfn_end : 520000
> mem_map (164)
> mem_map : ffffea0011f00000
> pfn_start : 520000
> pfn_end : 528000
> mem_map (165)
> mem_map : ffffea00120c0000
> pfn_start : 528000
> pfn_end : 530000
> mem_map (166)
> mem_map : ffffea0012280000
> pfn_start : 530000
> pfn_end : 538000
> mem_map (167)
> mem_map : ffffea0012440000
> pfn_start : 538000
> pfn_end : 540000
> mem_map (168)
> mem_map : ffffea0012600000
> pfn_start : 540000
> pfn_end : 548000
> mem_map (169)
> mem_map : ffffea00127c0000
> pfn_start : 548000
> pfn_end : 550000
> mem_map (170)
> mem_map : ffffea0012980000
> pfn_start : 550000
> pfn_end : 558000
> mem_map (171)
> mem_map : ffffea0012b40000
> pfn_start : 558000
> pfn_end : 560000
> mem_map (172)
> mem_map : ffffea0012d00000
> pfn_start : 560000
> pfn_end : 568000
> mem_map (173)
> mem_map : ffffea0012ec0000
> pfn_start : 568000
> pfn_end : 570000
> mem_map (174)
> mem_map : ffffea0013080000
> pfn_start : 570000
> pfn_end : 578000
> mem_map (175)
> mem_map : ffffea0013240000
> pfn_start : 578000
> pfn_end : 580000
> mem_map (176)
> mem_map : ffffea0013400000
> pfn_start : 580000
> pfn_end : 588000
> mem_map (177)
> mem_map : ffffea00135c0000
> pfn_start : 588000
> pfn_end : 590000
> mem_map (178)
> mem_map : ffffea0013780000
> pfn_start : 590000
> pfn_end : 598000
> mem_map (179)
> mem_map : ffffea0013940000
> pfn_start : 598000
> pfn_end : 5a0000
> mem_map (180)
> mem_map : ffffea0013b00000
> pfn_start : 5a0000
> pfn_end : 5a8000
> mem_map (181)
> mem_map : ffffea0013cc0000
> pfn_start : 5a8000
> pfn_end : 5b0000
> mem_map (182)
> mem_map : ffffea0013e80000
> pfn_start : 5b0000
> pfn_end : 5b8000
> mem_map (183)
> mem_map : ffffea0014040000
> pfn_start : 5b8000
> pfn_end : 5c0000
> mem_map (184)
> mem_map : ffffea0014200000
> pfn_start : 5c0000
> pfn_end : 5c8000
> mem_map (185)
> mem_map : ffffea00143c0000
> pfn_start : 5c8000
> pfn_end : 5d0000
> mem_map (186)
> mem_map : ffffea0014580000
> pfn_start : 5d0000
> pfn_end : 5d8000
> mem_map (187)
> mem_map : ffffea0014740000
> pfn_start : 5d8000
> pfn_end : 5e0000
> mem_map (188)
> mem_map : ffffea0014900000
> pfn_start : 5e0000
> pfn_end : 5e8000
> mem_map (189)
> mem_map : ffffea0014ac0000
> pfn_start : 5e8000
> pfn_end : 5f0000
> mem_map (190)
> mem_map : ffffea0014c80000
> pfn_start : 5f0000
> pfn_end : 5f8000
> mem_map (191)
> mem_map : ffffea0014e40000
> pfn_start : 5f8000
> pfn_end : 600000
> mem_map (192)
> mem_map : ffffea0015000000
> pfn_start : 600000
> pfn_end : 608000
> mem_map (193)
> mem_map : ffffea00151c0000
> pfn_start : 608000
> pfn_end : 610000
> mem_map (194)
> mem_map : ffffea0015380000
> pfn_start : 610000
> pfn_end : 618000
> mem_map (195)
> mem_map : ffffea0015540000
> pfn_start : 618000
> pfn_end : 620000
> mem_map (196)
> mem_map : ffffea0015700000
> pfn_start : 620000
> pfn_end : 628000
> mem_map (197)
> mem_map : ffffea00158c0000
> pfn_start : 628000
> pfn_end : 630000
> mem_map (198)
> mem_map : ffffea0015a80000
> pfn_start : 630000
> pfn_end : 638000
> mem_map (199)
> mem_map : ffffea0015c40000
> pfn_start : 638000
> pfn_end : 640000
> mem_map (200)
> mem_map : ffffea0015e00000
> pfn_start : 640000
> pfn_end : 648000
> mem_map (201)
> mem_map : ffffea0015fc0000
> pfn_start : 648000
> pfn_end : 650000
> mem_map (202)
> mem_map : ffffea0016180000
> pfn_start : 650000
> pfn_end : 658000
> mem_map (203)
> mem_map : ffffea0016340000
> pfn_start : 658000
> pfn_end : 660000
> mem_map (204)
> mem_map : ffffea0016500000
> pfn_start : 660000
> pfn_end : 668000
> mem_map (205)
> mem_map : ffffea00166c0000
> pfn_start : 668000
> pfn_end : 670000
> mem_map (206)
> mem_map : ffffea0016880000
> pfn_start : 670000
> pfn_end : 678000
> mem_map (207)
> mem_map : ffffea0016a40000
> pfn_start : 678000
> pfn_end : 680000
> mem_map (208)
> mem_map : ffffea0016c00000
> pfn_start : 680000
> pfn_end : 688000
> mem_map (209)
> mem_map : ffffea0016dc0000
> pfn_start : 688000
> pfn_end : 690000
> mem_map (210)
> mem_map : ffffea0016f80000
> pfn_start : 690000
> pfn_end : 698000
> mem_map (211)
> mem_map : ffffea0017140000
> pfn_start : 698000
> pfn_end : 6a0000
> mem_map (212)
> mem_map : ffffea0017300000
> pfn_start : 6a0000
> pfn_end : 6a8000
> mem_map (213)
> mem_map : ffffea00174c0000
> pfn_start : 6a8000
> pfn_end : 6b0000
> mem_map (214)
> mem_map : ffffea0017680000
> pfn_start : 6b0000
> pfn_end : 6b8000
> mem_map (215)
> mem_map : ffffea0017840000
> pfn_start : 6b8000
> pfn_end : 6c0000
> mem_map (216)
> mem_map : ffffea0017a00000
> pfn_start : 6c0000
> pfn_end : 6c8000
> mem_map (217)
> mem_map : ffffea0017bc0000
> pfn_start : 6c8000
> pfn_end : 6d0000
> mem_map (218)
> mem_map : ffffea0017d80000
> pfn_start : 6d0000
> pfn_end : 6d8000
> mem_map (219)
> mem_map : ffffea0017f40000
> pfn_start : 6d8000
> pfn_end : 6e0000
> mem_map (220)
> mem_map : ffffea0018100000
> pfn_start : 6e0000
> pfn_end : 6e8000
> mem_map (221)
> mem_map : ffffea00182c0000
> pfn_start : 6e8000
> pfn_end : 6f0000
> mem_map (222)
> mem_map : ffffea0018480000
> pfn_start : 6f0000
> pfn_end : 6f8000
> mem_map (223)
> mem_map : ffffea0018640000
> pfn_start : 6f8000
> pfn_end : 700000
> mem_map (224)
> mem_map : ffffea0018800000
> pfn_start : 700000
> pfn_end : 708000
> mem_map (225)
> mem_map : ffffea00189c0000
> pfn_start : 708000
> pfn_end : 710000
> mem_map (226)
> mem_map : ffffea0018b80000
> pfn_start : 710000
> pfn_end : 718000
> mem_map (227)
> mem_map : ffffea0018d40000
> pfn_start : 718000
> pfn_end : 720000
> mem_map (228)
> mem_map : ffffea0018f00000
> pfn_start : 720000
> pfn_end : 728000
> mem_map (229)
> mem_map : ffffea00190c0000
> pfn_start : 728000
> pfn_end : 730000
> mem_map (230)
> mem_map : ffffea0019280000
> pfn_start : 730000
> pfn_end : 738000
> mem_map (231)
> mem_map : ffffea0019440000
> pfn_start : 738000
> pfn_end : 740000
> mem_map (232)
> mem_map : ffffea0019600000
> pfn_start : 740000
> pfn_end : 748000
> mem_map (233)
> mem_map : ffffea00197c0000
> pfn_start : 748000
> pfn_end : 750000
> mem_map (234)
> mem_map : ffffea0019980000
> pfn_start : 750000
> pfn_end : 758000
> mem_map (235)
> mem_map : ffffea0019b40000
> pfn_start : 758000
> pfn_end : 760000
> mem_map (236)
> mem_map : ffffea0019d00000
> pfn_start : 760000
> pfn_end : 768000
> mem_map (237)
> mem_map : ffffea0019ec0000
> pfn_start : 768000
> pfn_end : 770000
> mem_map (238)
> mem_map : ffffea001a080000
> pfn_start : 770000
> pfn_end : 778000
> mem_map (239)
> mem_map : ffffea001a240000
> pfn_start : 778000
> pfn_end : 780000
> mem_map (240)
> mem_map : ffffea001a400000
> pfn_start : 780000
> pfn_end : 788000
> mem_map (241)
> mem_map : ffffea001a5c0000
> pfn_start : 788000
> pfn_end : 790000
> mem_map (242)
> mem_map : ffffea001a780000
> pfn_start : 790000
> pfn_end : 798000
> mem_map (243)
> mem_map : ffffea001a940000
> pfn_start : 798000
> pfn_end : 7a0000
> mem_map (244)
> mem_map : ffffea001ab00000
> pfn_start : 7a0000
> pfn_end : 7a8000
> mem_map (245)
> mem_map : ffffea001acc0000
> pfn_start : 7a8000
> pfn_end : 7b0000
> mem_map (246)
> mem_map : ffffea001ae80000
> pfn_start : 7b0000
> pfn_end : 7b8000
> mem_map (247)
> mem_map : ffffea001b040000
> pfn_start : 7b8000
> pfn_end : 7c0000
> mem_map (248)
> mem_map : ffffea001b200000
> pfn_start : 7c0000
> pfn_end : 7c8000
> mem_map (249)
> mem_map : ffffea001b3c0000
> pfn_start : 7c8000
> pfn_end : 7d0000
> mem_map (250)
> mem_map : ffffea001b580000
> pfn_start : 7d0000
> pfn_end : 7d8000
> mem_map (251)
> mem_map : ffffea001b740000
> pfn_start : 7d8000
> pfn_end : 7e0000
> mem_map (252)
> mem_map : ffffea001b900000
> pfn_start : 7e0000
> pfn_end : 7e8000
> mem_map (253)
> mem_map : ffffea001bac0000
> pfn_start : 7e8000
> pfn_end : 7f0000
> mem_map (254)
> mem_map : ffffea001bc80000
> pfn_start : 7f0000
> pfn_end : 7f8000
> mem_map (255)
> mem_map : ffffea001be40000
> pfn_start : 7f8000
> pfn_end : 800000
> mem_map (256)
> mem_map : ffffea001c000000
> pfn_start : 800000
> pfn_end : 808000
> mem_map (257)
> mem_map : ffffea001c1c0000
> pfn_start : 808000
> pfn_end : 810000
> mem_map (258)
> mem_map : ffffea001c380000
> pfn_start : 810000
> pfn_end : 818000
> mem_map (259)
> mem_map : ffffea001c540000
> pfn_start : 818000
> pfn_end : 820000
> mem_map (260)
> mem_map : ffffea001c700000
> pfn_start : 820000
> pfn_end : 828000
> mem_map (261)
> mem_map : ffffea001c8c0000
> pfn_start : 828000
> pfn_end : 830000
> mem_map (262)
> mem_map : ffffea001ca80000
> pfn_start : 830000
> pfn_end : 838000
> mem_map (263)
> mem_map : ffffea001cc40000
> pfn_start : 838000
> pfn_end : 840000
> mem_map (264)
> mem_map : ffffea001ce00000
> pfn_start : 840000
> pfn_end : 848000
> mem_map (265)
> mem_map : ffffea001cfc0000
> pfn_start : 848000
> pfn_end : 850000
> mem_map (266)
> mem_map : ffffea001d180000
> pfn_start : 850000
> pfn_end : 858000
> mem_map (267)
> mem_map : ffffea001d340000
> pfn_start : 858000
> pfn_end : 860000
> mem_mapExcluding unnecessary pages : [ 0 %] Excluding unnecessary pages : [100 %] Excluding unnecessary pages : [ 0 %] Excluding unnecessary pages : [100 %]
> (268)
> mem_map : ffffea001d500000
> pfn_start : 860000
> pfn_end : 868000
> mem_map (269)
> mem_map : ffffea001d6c0000
> pfn_start : 868000
> pfn_end : 870000
> mem_map (270)
> mem_map : ffffea001d880000
> pfn_start : 870000
> pfn_end : 878000
> mem_map (271)
> mem_map : ffffea001da40000
> pfn_start : 878000
> pfn_end : 880000
> STEP [Excluding unnecessary pages] : 0.438936 seconds
> STEP [Excluding unnecessary pages] : 0.467304 seconds
> STEP [Copying data ] : 0.624328 seconds
> Writing erase info...
> offset_eraseinfo: 6c0eb8, size_eraseinfo: 0
>
> Original pages : 0x00000000007ec289
> Excluded pages : 0x00000000007b9efb
> Pages filled with zero : 0x0000000000000000
> Cache pages : 0x0000000000012cff
> Cache pages + private : 0x0000000000012015
> User process data pages : 0x0000000000001ece
> Free pages : 0x0000000000793319
> Remaining pages : 0x000000000003238e
> (The number of pages is reduced to 2%.)
> Memory Hole : 0x0000000000093d77
> --------------------------------------------------
> Total pages : 0x0000000000880000
>
>
> The dumpfile is saved to /mnt///127.0.0.1-2012-12-07-16:45:20/vmcore-empty-2.
>
> makedumpfile Completed.
> [ perf record: Woken up 3 times to write data ]
> [ perf record: Captured and wrote 0.598 MB /mnt///127.0.0.1-2012-12-07-16:45:20/perf.data2 (~26144 samples) ]
> Failed to open [ext4], continuing without symbols
> No kallsyms or vmlinux with build-id a77a2293aab413880b8b361bb5b863a1680c8eab was found
> [qla2xxx] with build id a77a2293aab413880b8b361bb5b863a1680c8eab not found, continuing without symbols
> Failed to open [dm_mirror], continuing without symbols
> No kallsyms or vmlinux with build-id 8e4a472eadb14fb0cde985ef8571b543880472dd was found
> [megaraid_sas] with build id 8e4a472eadb14fb0cde985ef8571b543880472dd not found, continuing without symbols
> No kallsyms or vmlinux with build-id 93346fc362be38e207aeaae310a339fb502d9acb was found
> [jbd2] with build id 93346fc362be38e207aeaae310a339fb502d9acb not found, continuing without symbols
> # ========
> # captured on: Fri Dec 7 16:45:43 2012
> # hostname : (none)
> # os release : 3.7.0-rc8-cliff-bench+
> # perf version : 3.7.rc8.3.ge0fb22
> # arch : x86_64
> # nrcpus online : 1
> # nrcpus avail : 1
> # cpudesc : Intel(R) Xeon(R) CPU E7- 4820 @ 2.00GHz
> # cpuid : GenuineIntel,6,47,2
> # total memory : 240104 kB
> # cmdline : /var/crash/perf record -g -o /mnt///127.0.0.1-2012-12-07-16:45:20/perf.data1 /var/crash/makedumpfile-cliff --message-level 31 -i /var/crash/vmcoreinfo.txt -N -o -d 31 /proc/vmcore /mnt///127.0.0.1-2012-12-07-16:45:20/vmcore-empty-1
> # event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, excl_host = 0, excl_guest = 1, precise_ip = 0, id = { 2 }
> # HEADER_CPU_TOPOLOGY info available, use -I to display
> # HEADER_NUMA_TOPOLOGY info available, use -I to display
> # pmu mappings: cpu = 4, software = 1, tracepoint = 2, uncore_bbox_0 = 15, uncore_bbox_1 = 16, uncore_cbox_0 = 7, uncore_cbox_1 = 8, uncore_cbox_2 = 9, uncore_cbox_3 = 10, uncore_cbox_4 = 11, uncore_cbox_5 = 12, uncore_cbox_6 = 13, uncore_cbox_7 = 14, uncore_mbox_0 = 19, uncore_mbox_1 = 20, uncore_rbox_0 = 21, uncore_rbox_1 = 22, uncore_sbox_0 = 17, uncore_sbox_1 = 18, breakpoint = 5, uncore_ubox = 6, uncore_wbox = 23
> # ========
> #
> # Samples: 91K of event 'cycles'
> # Event count (approx.): 23676246537
> #
> # Overhead Command Shared Object
> # ........ ............... ....................
> #
> 90.38% makedumpfile-cl [kernel.kallsyms]
> |
> |--19.73%-- __purge_vmap_area_lazy
> | |
> | |--80.50%-- free_vmap_area_noflush
> | | free_unmap_vmap_area
> | | remove_vm_area
> | | iounmap
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | | |
> | | |--66.59%-- 0x0
> | | |
> | | --33.41%-- 0x45524f4300000001
> | |
> | |--19.43%-- vm_unmap_aliases
> | | change_page_attr_set_clr
> | | _set_memory_wb
> | | ioremap_change_attr
> | | kernel_map_sync_memtype
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | --0.07%-- [...]
> |
> |--15.58%-- try_preserve_large_page
> | |
> | |--99.97%-- __change_page_attr
> | | __change_page_attr_set_clr
> | | change_page_attr_set_clr
> | | _set_memory_wb
> | | ioremap_change_attr
> | | kernel_map_sync_memtype
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | --0.03%-- [...]
> |
> |--14.51%-- iomem_map_sanity_check
> | |
> | |--99.97%-- __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | | |
> | | |--50.01%-- 0x6e6d2f0065726f63
> | | |
> | | --49.99%-- 0x45524f4300000001
> | --0.03%-- [...]
> |
> |--11.06%-- walk_system_ram_range
> | |
> | |--64.71%-- pat_pagerange_is_ram
> | | |
> | | |--50.87%-- free_memtype
> | | | iounmap
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | --49.13%-- reserve_memtype
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | |--34.75%-- page_is_ram
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | --0.54%-- [...]
> |
> |--4.84%-- __phys_addr
> | |
> | |--52.48%-- __change_page_attr
> | | __change_page_attr_set_clr
> | | change_page_attr_set_clr
> | | _set_memory_wb
> | | ioremap_change_attr
> | | kernel_map_sync_memtype
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | |--45.72%-- try_preserve_large_page
> | | __change_page_attr
> | | __change_page_attr_set_clr
> | | change_page_attr_set_clr
> | | _set_memory_wb
> | | ioremap_change_attr
> | | kernel_map_sync_memtype
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | --1.80%-- [...]
> |
> |--4.82%-- __get_vm_area_node
> | |
> | |--99.70%-- get_vm_area_caller
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | | |
> | | --100.00%-- 0x0
> | --0.30%-- [...]
> |
> |--4.13%-- iounmap
> | |
> | |--99.59%-- copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | | |
> | | |--50.39%-- 0x45524f4300000001
> | | |
> | | --49.61%-- 0x0
> | --0.41%-- [...]
> |
> |--3.60%-- read_vmcore
> | |
> | |--99.83%-- proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | --0.17%-- [...]
> |
> |--2.24%-- copy_user_generic_string
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> |
> |--1.92%-- remove_vm_area
> | |
> | |--99.31%-- iounmap
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | | |
> | | --100.00%-- 0x0
> | |
> | --0.69%-- copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> |
> |--1.82%-- do_kernel_range_flush
> | |
> | |--99.20%-- on_each_cpu
> | | flush_tlb_kernel_range
> | | __purge_vmap_area_lazy
> | | free_vmap_area_noflush
> | | free_unmap_vmap_area
> | | remove_vm_area
> | | iounmap
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | --0.80%-- flush_tlb_kernel_range
> | __purge_vmap_area_lazy
> | free_vmap_area_noflush
> | free_unmap_vmap_area
> | remove_vm_area
> | iounmap
> | copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> |
> |--1.01%-- rbt_memtype_erase
> | |
> | |--96.66%-- free_memtype
> | | iounmap
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | --3.34%-- iounmap
> | copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> |
> |--0.87%-- kfree
> | |
> | |--55.52%-- free_memtype
> | | iounmap
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | |--29.00%-- iounmap
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | |--12.42%-- rcu_do_batch
> | | __rcu_process_callbacks
> | | rcu_process_callbacks
> | | __do_softirq
> | | call_softirq
> | | do_softirq
> | | irq_exit
> | | smp_apic_timer_interrupt
> | | apic_timer_interrupt
> | | |
> | | |--20.23%-- free_vmap_area_noflush
> | | | free_unmap_vmap_area
> | | | remove_vm_area
> | | | iounmap
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--19.11%-- __ioremap_caller
> | | | ioremap_cache
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--16.82%-- __change_page_attr
> | | | __change_page_attr_set_clr
> | | | change_page_attr_set_clr
> | | | _set_memory_wb
> | | | ioremap_change_attr
> | | | kernel_map_sync_memtype
> | | | __ioremap_caller
> | | | ioremap_cache
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--6.75%-- pat_pagerange_is_ram
> | | | |
> | | | |--66.67%-- reserve_memtype
> | | | | __ioremap_caller
> | | | | ioremap_cache
> | | | | copy_oldmem_page
> | | | | read_from_oldmem
> | | | | read_vmcore
> | | | | proc_reg_read
> | | | | vfs_read
> | | | | sys_read
> | | | | system_call_fastpath
> | | | | __read_nocancel
> | | | |
> | | | --33.33%-- free_memtype
> | | | iounmap
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--5.62%-- vm_unmap_aliases
> | | | change_page_attr_set_clr
> | | | _set_memory_wb
> | | | ioremap_change_attr
> | | | kernel_map_sync_memtype
> | | | __ioremap_caller
> | | | ioremap_cache
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--4.50%-- proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--4.49%-- copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--3.37%-- get_vm_area_caller
> | | | __ioremap_caller
> | | | ioremap_cache
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--3.37%-- readmem
> | | |
> | | |--2.25%-- page_is_ram
> | | | __ioremap_caller
> | | | ioremap_cache
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--2.25%-- __exclude_unnecessary_pages
> | | | exclude_unnecessary_pages_cyclic
> | | | writeout_dumpfile
> | | | 0x7fff6c26de6d
> | | | 0x64656b616d2f6873
> | | |
> | | |--2.25%-- paddr_to_offset
> | | | exclude_unnecessary_pages_cyclic
> | | | |
> | | | --100.00%-- writeout_dumpfile
> | | | 0x7fff6c26de6d
> | | | 0x64656b616d2f6873
> | | |
> | | |--1.13%-- try_preserve_large_page
> | | | __change_page_attr
> | | | __change_page_attr_set_clr
> | | | change_page_attr_set_clr
> | | | _set_memory_wb
> | | | ioremap_change_attr
> | | | kernel_map_sync_memtype
> | | | __ioremap_caller
> | | | ioremap_cache
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--1.12%-- reserve_memtype
> | | | __ioremap_caller
> | | | ioremap_cache
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--1.12%-- __lseek_nocancel
> | | |
> | | |--1.12%-- proc_reg_llseek
> | | | vfs_llseek
> | | | sys_lseek
> | | | system_call_fastpath
> | | | __lseek_nocancel
> | | |
> | | |--1.12%-- free_memtype
> | | | iounmap
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--1.12%-- on_each_cpu
> | | | flush_tlb_kernel_range
> | | | __purge_vmap_area_lazy
> | | | free_vmap_area_noflush
> | | | free_unmap_vmap_area
> | | | remove_vm_area
> | | | iounmap
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | |--1.12%-- __get_vm_area_node
> | | | get_vm_area_caller
> | | | __ioremap_caller
> | | | ioremap_cache
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | |
> | | --1.12%-- vtop4_x86_64
> | |
> | |--2.09%-- copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | --0.98%-- __rcu_process_callbacks
> | rcu_process_callbacks
> | __do_softirq
> | call_softirq
> | do_softirq
> | irq_exit
> | smp_apic_timer_interrupt
> | apic_timer_interrupt
> | |
> | |--57.11%-- __change_page_attr
> | | __change_page_attr_set_clr
> | | change_page_attr_set_clr
> | | _set_memory_wb
> | | ioremap_change_attr
> | | kernel_map_sync_memtype
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | |--14.30%-- flush_tlb_kernel_range
> | | __purge_vmap_area_lazy
> | | free_vmap_area_noflush
> | | free_unmap_vmap_area
> | | remove_vm_area
> | | iounmap
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | |--14.30%-- free_vmap_area_noflush
> | | free_unmap_vmap_area
> | | remove_vm_area
> | | iounmap
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | --14.30%-- copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> |
> |--0.58%-- __insert_vmap_area
> | |
> | |--98.32%-- alloc_vmap_area
> | | __get_vm_area_node
> | | get_vm_area_caller
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | --1.68%-- __get_vm_area_node
> | get_vm_area_caller
> | __ioremap_caller
> | ioremap_cache
> | copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> |
> |--0.57%-- kmem_cache_alloc_node_trace
> | |
> | |--55.58%-- __get_vm_area_node
> | | get_vm_area_caller
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | |--41.85%-- alloc_vmap_area
> | | __get_vm_area_node
> | | get_vm_area_caller
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | --2.56%-- get_vm_area_caller
> | __ioremap_caller
> | ioremap_cache
> | copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> |
> |--0.54%-- vfs_read
> | |
> | |--98.21%-- sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | | |
> | | --100.00%-- 0x0
> | |
> | --1.79%-- system_call_fastpath
> | __read_nocancel
> |
> |--0.54%-- memtype_rb_check_conflict
> | |
> | |--95.54%-- rbt_memtype_check_insert
> | | reserve_memtype
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | --4.46%-- reserve_memtype
> | __ioremap_caller
> | ioremap_cache
> | copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> |
> |--0.51%-- __mtrr_type_lookup
> | |
> | |--96.91%-- mtrr_type_lookup
> | | reserve_memtype
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | |
> | --3.09%-- reserve_memtype
> | __ioremap_caller
> | ioremap_cache
> | copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> --11.15%-- [...]
>
> 9.19% makedumpfile-cl makedumpfile-cliff
> |
> |--37.97%-- __exclude_unnecessary_pages
> | exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--18.73%-- set_bitmap_cyclic
> | |
> | --100.00%-- exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--13.79%-- paddr_to_offset
> | |
> | --100.00%-- exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--4.71%-- readmem
> | |
> | --100.00%-- exclude_unnecessary_pages_cyclic
> | writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--4.12%-- get_num_dumpable_cyclic
> |
> |--2.90%-- is_in_same_page
> |
> |--2.66%-- page_is_buddy_v3
> | exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--2.37%-- clear_bit_on_2nd_bitmap_for_kernel
> | exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--2.35%-- create_1st_bitmap_cyclic
> |
> |--2.04%-- is_xen_memory
> | |
> | --100.00%-- exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--2.02%-- vtop4_x86_64
> |
> |--1.67%-- set_bit_on_1st_bitmap
> |
> |--1.53%-- clear_bit_on_2nd_bitmap
> | exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--1.25%-- write_kdump_pages_and_bitmap_cyclic
> | writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--1.15%-- update_cyclic_region
> |
> |--0.66%-- vaddr_to_paddr_x86_64
> --0.07%-- [...]
>
> 0.42% makedumpfile-cl libc.so.6
> |
> |--40.25%-- __lseek_nocancel
> |
> |--36.91%-- __read_nocancel
> |
> |--8.64%-- __GI___libc_read
> |
> |--5.01%-- __memset_sse2
> | |
> | --100.00%-- 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--3.90%-- __GI___libc_lseek64
> |
> |--3.72%-- memcpy
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff6c26de6d
> | 0x64656b616d2f6873
> |
> |--0.53%-- memchr
> --1.04%-- [...]
>
> 0.01% makedumpfile-cl ld-linux-x86-64.so.2
> |
> |--49.69%-- strcmp
> | |
> | |--67.41%-- 0x8922974
> | | 0x42494c4700342e33
> | |
> | --32.59%-- 0x9691a75
> | 0x42494c4700352e32
> |
> |--17.46%-- _dl_name_match_p
> | _dl_check_all_versions
> |
> |--16.51%-- do_lookup_x
> |
> --16.34%-- _dl_lookup_symbol_x
> _dl_relocate_object
> dl_main
> _dl_sysdep_start
> 0x4156415741e58948
>
> 0.00% makedumpfile-cl libstdc++.so.6
> |
> --- 0x37282bb470
> 0x3728253b43
> 0x7fff6c26de6d
> 0x64656b616d2f6873
>
> 0.00% makedumpfile-cl [megaraid_sas]
> |
> --- megasas_isr
> handle_irq_event_percpu
> handle_irq_event
> handle_edge_irq
> handle_irq
> do_IRQ
> ret_from_intr
> __exclude_unnecessary_pages
> exclude_unnecessary_pages_cyclic
> writeout_dumpfile
> 0x7fff6c26de6d
> 0x64656b616d2f6873
>
> 0.00% makedumpfile-cl [qla2xxx]
> |
> --- qla24xx_mbx_completion
> qla24xx_msix_default
> handle_irq_event_percpu
> handle_irq_event
> handle_edge_irq
> handle_irq
> do_IRQ
> ret_from_intr
> __change_page_attr
> __change_page_attr_set_clr
> change_page_attr_set_clr
> _set_memory_wb
> ioremap_change_attr
> kernel_map_sync_memtype
> __ioremap_caller
> ioremap_cache
> copy_oldmem_page
> read_from_oldmem
> read_vmcore
> proc_reg_read
> vfs_read
> sys_read
> system_call_fastpath
> __read_nocancel
>
> 0.00% makedumpfile-cl [jbd2]
> |
> --- jbd2_journal_start
> ext4_dirty_inode
> __mark_inode_dirty
> update_time
> file_update_time
> __generic_file_aio_write
> generic_file_aio_write
> ext4_file_write
> do_sync_write
> vfs_write
> sys_write
> system_call_fastpath
> __write_nocancel
> 0xffffff0000003725
>
>
>
> Failed to open [dm_mirror], continuing without symbols
> Failed to open [ext4], continuing without symbols
> # ========
> # captured on: Fri Dec 7 16:45:46 2012
> # hostname : (none)
> # os release : 3.7.0-rc8-cliff-bench+
> # perf version : 3.7.rc8.3.ge0fb22
> # arch : x86_64
> # nrcpus online : 1
> # nrcpus avail : 1
> # cpudesc : Intel(R) Xeon(R) CPU E7- 4820 @ 2.00GHz
> # cpuid : GenuineIntel,6,47,2
> # total memory : 240104 kB
> # cmdline : /var/crash/perf record -g -o /mnt///127.0.0.1-2012-12-07-16:45:20/perf.data2 /var/crash/makedumpfile-cliff --message-level 31 -i /var/crash/vmcoreinfo.txt -N -d 31 /proc/vmcore /mnt///127.0.0.1-2012-12-07-16:45:20/vmcore-empty-2
> # event : name = cycles, type = 0, config = 0x0, config1 = 0x0, config2 = 0x0, excl_usr = 0, excl_kern = 0, excl_host = 0, excl_guest = 1, precise_ip = 0, id = { 3 }
> # HEADER_CPU_TOPOLOGY info available, use -I to display
> # HEADER_NUMA_TOPOLOGY info available, use -I to display
> # pmu mappings: cpu = 4, software = 1, tracepoint = 2, uncore_bbox_0 = 15, uncore_bbox_1 = 16, uncore_cbox_0 = 7, uncore_cbox_1 = 8, uncore_cbox_2 = 9, uncore_cbox_3 = 10, uncore_cbox_4 = 11, uncore_cbox_5 = 12, uncore_cbox_6 = 13, uncore_cbox_7 = 14, uncore_mbox_0 = 19, uncore_mbox_1 = 20, uncore_rbox_0 = 21, uncore_rbox_1 = 22, uncore_sbox_0 = 17, uncore_sbox_1 = 18, breakpoint = 5, uncore_ubox = 6, uncore_wbox = 23
> # ========
> #
> # Samples: 5K of event 'cycles'
> # Event count (approx.): 1493942335
> #
> # Overhead Command Shared Object
> # ........ ............... ....................
> #
> 51.45% makedumpfile-cl makedumpfile-cliff
> |
> |--51.45%-- set_bitmap_cyclic
> | |
> | --100.00%-- exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff0b66fe70
> | 0x64656b616d2f6873
> |
> |--11.66%-- get_num_dumpable_cyclic
> |
> |--7.96%-- clear_bit_on_2nd_bitmap_for_kernel
> | exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff0b66fe70
> | 0x64656b616d2f6873
> |
> |--6.93%-- create_1st_bitmap_cyclic
> |
> |--4.52%-- __exclude_unnecessary_pages_kernel
> | exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff0b66fe70
> | 0x64656b616d2f6873
> |
> |--4.35%-- clear_bit_on_2nd_bitmap
> | exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff0b66fe70
> | 0x64656b616d2f6873
> |
> |--4.05%-- set_bit_on_1st_bitmap
> |
> |--3.63%-- update_cyclic_region
> |
> |--3.52%-- write_kdump_pages_and_bitmap_cyclic
> | writeout_dumpfile
> | 0x7fff0b66fe70
> | 0x64656b616d2f6873
> |
> |--1.87%-- is_xen_memory
> | exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff0b66fe70
> | 0x64656b616d2f6873
> --0.07%-- [...]
>
> 47.68% makedumpfile-cl [kernel.kallsyms]
> |
> |--77.89%-- write_vmcore_get_excludes
> | write_vmcore_pfn_lists
> | proc_reg_write
> | vfs_write
> | sys_write
> | system_call_fastpath
> | __write_nocancel
> | exclude_unnecessary_pages_cyclic
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff0b66fe70
> | 0x64656b616d2f6873
> |
> |--15.34%-- walk_system_ram_range
> | |
> | |--96.92%-- page_is_ram
> | | __ioremap_caller
> | | ioremap_cache
> | | |
> | | |--99.51%-- write_vmcore_get_memmap
> | | | write_vmcore_pfn_lists
> | | | proc_reg_write
> | | | vfs_write
> | | | sys_write
> | | | system_call_fastpath
> | | | __write_nocancel
> | | | 0x7fff0b66fe70
> | | | 0x64656b616d2f6873
> | | --0.49%-- [...]
> | |
> | |--2.84%-- pat_pagerange_is_ram
> | | |
> | | |--58.30%-- free_memtype
> | | | iounmap
> | | | copy_oldmem_page
> | | | read_from_oldmem
> | | | read_vmcore
> | | | proc_reg_read
> | | | vfs_read
> | | | sys_read
> | | | system_call_fastpath
> | | | __read_nocancel
> | | | |
> | | | --100.00%-- 0x45524f4300000001
> | | |
> | | --41.70%-- reserve_memtype
> | | __ioremap_caller
> | | ioremap_cache
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | --0.24%-- [...]
> |
> |--0.76%-- __purge_vmap_area_lazy
> | |
> | |--76.20%-- free_vmap_area_noflush
> | | free_unmap_vmap_area
> | | remove_vm_area
> | | iounmap
> | | copy_oldmem_page
> | | read_from_oldmem
> | | read_vmcore
> | | proc_reg_read
> | | vfs_read
> | | sys_read
> | | system_call_fastpath
> | | __read_nocancel
> | | |
> | | |--50.02%-- 0x45524f4300000001
> | | |
> | | --49.98%-- 0x0
> | |
> | --23.80%-- vm_unmap_aliases
> | change_page_attr_set_clr
> | _set_memory_wb
> | ioremap_change_attr
> | kernel_map_sync_memtype
> | __ioremap_caller
> | ioremap_cache
> | copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> |
> |--0.66%-- iomem_map_sanity_check
> | __ioremap_caller
> | ioremap_cache
> | copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> | |
> | |--50.44%-- 0x45524f4300000001
> | |
> | --49.56%-- 0x0
> |
> |--0.51%-- try_preserve_large_page
> | __change_page_attr
> | __change_page_attr_set_clr
> | change_page_attr_set_clr
> | _set_memory_wb
> | ioremap_change_attr
> | kernel_map_sync_memtype
> | __ioremap_caller
> | ioremap_cache
> | copy_oldmem_page
> | read_from_oldmem
> | read_vmcore
> | proc_reg_read
> | vfs_read
> | sys_read
> | system_call_fastpath
> | __read_nocancel
> --4.84%-- [...]
>
> 0.72% makedumpfile-cl libc.so.6
> |
> |--36.59%-- __memset_sse2
> | |
> | --100.00%-- 0x7fff0b66fe70
> | 0x64656b616d2f6873
> |
> |--31.88%-- memcpy
> | |
> | --100.00%-- writeout_dumpfile
> | 0x7fff0b66fe70
> | 0x64656b616d2f6873
> |
> |--4.88%-- time
> |
> |--4.80%-- _IO_file_xsputn@@GLIBC_2.2.5
> | 0x7f7e97029000
> |
> |--2.46%-- _IO_file_init@@GLIBC_2.2.5
> |
> |--2.45%-- _int_free
> |
> |--2.45%-- 0x372527ffa0
> |
> |--2.44%-- _IO_default_xsputn
> | 0x71e4ef
> |
> |--2.42%-- __lseek_nocancel
> |
> |--2.41%-- _IO_getline_info
> |
> |--2.41%-- __strlen_sse42
> | 0x61705f6769746e6f
> |
> |--2.41%-- _IO_fgets
> | 0x3638343533313d45
> |
> --2.40%-- vfprintf
> fprintf
>
> 0.13% makedumpfile-cl ld-linux-x86-64.so.2
> |
> |--28.61%-- _dl_relocate_object
> | dl_main
> | _dl_sysdep_start
> | 0x4156415741e58948
> |
> |--28.61%-- do_lookup_x
> |
> |--14.96%-- strcmp
> | 0x6e696c2d646c0036
> |
> |--14.34%-- _dl_lookup_symbol_x
> | _dl_relocate_object
> | dl_main
> | _dl_sysdep_start
> | 0x4156415741e58948
> |
> --13.48%-- _dl_sort_fini
> _dl_fini
> exit
>
> 0.02% makedumpfile-cl libstdc++.so.6
> |
> --- std::basic_ios<char, std::char_traits<char> >::init(std::basic_streambuf<char, std::char_traits<char> >*)
> 0x37284ebbe0
> std::basic_ostream<char, std::char_traits<char> >::~basic_ostream()
>
>
>
--
Cliff Wickman
SGI
cpw@....com
(651) 683-3824
View attachment "121210.proc_vmcore2" of type "text/plain" (30805 bytes)
View attachment "121207.vmcore_pagescans.sles" of type "text/plain" (21973 bytes)
View attachment "121207.vmcore_pagescans.rhel" of type "text/plain" (21608 bytes)
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