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Message-ID: <1321396371.4198.5.camel@boudreau>
Date:	Tue, 15 Nov 2011 14:32:51 -0800
From:	Tim Hartrick <tim@...ecast.com>
To:	Dave Young <dyoung@...hat.com>
Cc:	WANG Cong <xiyou.wangcong@...il.com>, kexec@...ts.infradead.org,
	linux-kernel@...r.kernel.org, tj@...nel.org
Subject: Re: Crash during vmcore_init


Dave,

I tested with

linux-image-3.1.1-030101-generic_3.1.1-030101.201111111651_amd64.deb

which, as far as I know, is the Ubuntu build of the latest stable.
Below are the results.

[    1.427457] ioremap: invalid physical address 5800000000000
[    1.433017] ------------[ cut here ]------------
[    1.437632] WARNING: at /home/apw/COD/linux/arch/x86/mm/ioremap.c:83
__ioremap_caller+0x35e/0x3a0()
[    1.446656] Hardware name: PowerEdge R710
[    1.450655] Modules linked in:
[    1.453712] Pid: 1, comm: swapper Not tainted 3.1.1-030101-generic
#201111111651
[    1.461092] Call Trace:
[    1.463539]  [<ffffffff81065aef>] warn_slowpath_common+0x7f/0xc0
[    1.469532]  [<ffffffff81065b4a>] warn_slowpath_null+0x1a/0x20
[    1.475352]  [<ffffffff810412be>] __ioremap_caller+0x35e/0x3a0
[    1.481176]  [<ffffffff8103852e>] ? copy_oldmem_page+0x4e/0xc0
[    1.486995]  [<ffffffff81041334>] ioremap_cache+0x14/0x20
[    1.492380]  [<ffffffff8103852e>] copy_oldmem_page+0x4e/0xc0
[    1.498031]  [<ffffffff811dc7b1>] read_from_oldmem+0xb1/0xf0
[    1.503682]  [<ffffffff8115e4ec>] ? __kmalloc+0x5c/0x160
[    1.508984]  [<ffffffff81cfef55>] T.635+0x6e/0x211
[    1.513767]  [<ffffffff811dc7b1>] ? read_from_oldmem+0xb1/0xf0
[    1.519588]  [<ffffffff8115e4ec>] ? __kmalloc+0x5c/0x160
[    1.524887]  [<ffffffff81cff20b>] parse_crash_elf64_headers
+0x113/0x212
[    1.531489]  [<ffffffff81cff82f>] ? parse_crash_elf_headers
+0x122/0x122
[    1.538088]  [<ffffffff81cff78b>] parse_crash_elf_headers+0x7e/0x122
[    1.544427]  [<ffffffff81cff850>] vmcore_init+0x21/0x75
[    1.549645]  [<ffffffff81002043>] do_one_initcall+0x43/0x190
[    1.555293]  [<ffffffff81cd8680>] kernel_init+0xcd/0x151
[    1.560596]  [<ffffffff81608af4>] kernel_thread_helper+0x4/0x10
[    1.566504]  [<ffffffff81cd85b3>] ? parse_early_options+0x20/0x20
[    1.572584]  [<ffffffff81608af0>] ? gs_change+0x13/0x13
[    1.577802] ---[ end trace a22d306b065d4a66 ]---

[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-3.1.1-030101-generic
root=UUID=ea7a5a27-d58f-469f-a19c-3e65b69587f6 ro console=ttyS0,115200n8
irqpoll maxcpus=1 nousb memmap=exactmap memmap=640K@0K
memmap=489836K@...08K elfcorehdr=523244K memmap=252K#2087484K

00000000-0000ffff : reserved
00010000-0009ffff : System RAM
000a0000-000bffff : PCI Bus 0000:00
000c0000-000c7fff : Video ROM
000c8000-000cdbff : Adapter ROM
000ce000-000cefff : Adapter ROM
000cf000-000d15ff : Adapter ROM
000f0000-000fffff : System ROM
00100000-7f678fff : System RAM
  01000000-0160b9e3 : Kernel code
  0160b9e4-01cc2dff : Kernel data
  01dc1000-01f14fff : Kernel bss
  02000000-1fefffff : Crash kernel
7f679000-7f68efff : reserved
  7f679000-7f679003 : APEI ERST
  7f67900c-7f679016 : APEI ERST
  7f679060-7f67906b : APEI ERST
  7f68d000-7f68efff : APEI ERST
7f68f000-7f6cdfff : ACPI Tables
7f6ce000-7fffffff : reserved
80000000-fdffffff : PCI Bus 0000:00
  d5800000-d5ffffff : PCI Bus 0000:08
    d5800000-d5ffffff : 0000:08:03.0
  d6000000-d9ffffff : PCI Bus 0000:01
    d6000000-d7ffffff : 0000:01:00.0
      d6000000-d7ffffff : bnx2
    d8000000-d9ffffff : 0000:01:00.1
      d8000000-d9ffffff : bnx2
  da000000-ddffffff : PCI Bus 0000:02
    da000000-dbffffff : 0000:02:00.0
      da000000-dbffffff : bnx2
    dc000000-ddffffff : 0000:02:00.1
      dc000000-ddffffff : bnx2
  de000000-deffffff : PCI Bus 0000:08
    de000000-de00ffff : 0000:08:03.0
    de7fc000-de7fffff : 0000:08:03.0
    de800000-deffffff : 0000:08:03.0
  df0ff800-df0ffbff : 0000:00:1a.7
    df0ff800-df0ffbff : ehci_hcd
  df0ffc00-df0fffff : 0000:00:1d.7
    df0ffc00-df0fffff : ehci_hcd
  df100000-df2fffff : PCI Bus 0000:03
    df100000-df1fffff : 0000:03:00.0
    df2ec000-df2effff : 0000:03:00.0
      df2ec000-df2effff : mpt
    df2f0000-df2fffff : 0000:03:00.0
      df2f0000-df2fffff : mpt
  e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
    e0000000-efffffff : reserved
      e0000000-efffffff : pnp 00:09
fe000000-ffffffff : reserved
  fec00000-fec003ff : IOAPIC 0
  fec80000-fec803ff : IOAPIC 1
  fed00000-fed003ff : HPET 0
  fed40000-fed44fff : PCI Bus 0000:00
  fed90000-fed91fff : pnp 00:0b
  fee00000-fee00fff : Local APIC
100000000-c7fffffff : System RAM



On Tue, 2011-11-15 at 16:14 +0800, Dave Young wrote:
> On 11/15/2011 02:50 AM, Tim Hartrick wrote:
> 
> > 
> > Wang,
> > 
> > Thanks for taking the time to look at this.
> > 
> > 
> > Here is the result from a 2.6.38 kernel used as base kernel and
> > crashkernel:
> > 
> > [    1.314762] WARNING:
> > at /build/buildd/linux-2.6.38/arch/x86/mm/ioremap.c:83 __ioremap_caller
> > +0x350/0x3d0()
> > [    1.324394] Hardware name: PowerEdge R710
> > [    1.328390] Modules linked in:
> > [    1.331443] Pid: 1, comm: swapper Not tainted 2.6.38-8-server
> > #42-Ubuntu
> > [    1.338128] Call Trace:
> > [    1.340572]  [<ffffffff81065d1f>] ? warn_slowpath_common+0x7f/0xc0
> > [    1.346741]  [<ffffffff81065d7a>] ? warn_slowpath_null+0x1a/0x20
> > [    1.352729]  [<ffffffff81040eb0>] ? __ioremap_caller+0x350/0x3d0
> > [    1.358726]  [<ffffffff810d8575>] ? call_rcu_sched+0x15/0x20
> > [    1.364375]  [<ffffffff8103452e>] ? copy_oldmem_page+0x4e/0xc0
> > [    1.370194]  [<ffffffff8113c39e>] ? __purge_vmap_area_lazy+0xfe/0x1f0
> > [    1.376622]  [<ffffffff81040f64>] ? ioremap_cache+0x14/0x20
> > [    1.382176]  [<ffffffff8103452e>] ? copy_oldmem_page+0x4e/0xc0
> > [    1.388002]  [<ffffffff811cad0a>] ? read_from_oldmem+0x7a/0xb0
> > [    1.393827]  [<ffffffff81b099a0>] ? merge_note_headers_elf64.clone.3
> > +0x6c/0x214
> > [    1.401115]  [<ffffffff8103456a>] ? copy_oldmem_page+0x8a/0xc0
> > [    1.406936]  [<ffffffff811cad0a>] ? read_from_oldmem+0x7a/0xb0
> > [    1.412752]  [<ffffffff81b09e79>] ? vmcore_init+0x0/0x73
> > [    1.418051]  [<ffffffff81b09c52>] ? parse_crash_elf64_headers
> > +0x10a/0x211
> > [    1.424825]  [<ffffffff8103456a>] ? copy_oldmem_page+0x8a/0xc0
> > [    1.430640]  [<ffffffff81b09e79>] ? vmcore_init+0x0/0x73
> > [    1.435940]  [<ffffffff81b09dd4>] ? parse_crash_elf_headers
> > +0x7b/0x120
> > [    1.442450]  [<ffffffff81b09e9c>] ? vmcore_init+0x23/0x73
> > [    1.447839]  [<ffffffff81002175>] ? do_one_initcall+0x45/0x190
> > [    1.453661]  [<ffffffff81ae1dff>] ? kernel_init+0x169/0x1f3
> > [    1.459218]  [<ffffffff8100cde4>] ? kernel_thread_helper+0x4/0x10
> > [    1.465298]  [<ffffffff81ae1c96>] ? kernel_init+0x0/0x1f3
> > [    1.470680]  [<ffffffff8100cde0>] ? kernel_thread_helper+0x0/0x10
> > 
> > The command line for the crashkernel:
> > 
> > [    0.000000] Command line: BOOT_IMAGE=/vmlinuz-2.6.38-8-server
> > root=UUID=ea7a5a27-d58f-469f-a19c-3e65b69587f6 ro console=ttyS0,115200n8
> > irqpoll maxcpus=1 nousb memmap=exactmap memmap=640K@0K
> > memmap=261484K@...232K elfcorehdr=884716K memmap=252K#2087484K
> > 
> > The contents of /proc/iomem while running the base kernel:
> > 
> > 00000000-0000ffff : reserved
> > 00010000-0009ffff : System RAM
> > 000a0000-000bffff : PCI Bus 0000:00
> > 00100000-7f678fff : System RAM
> >   01000000-015e1d6c : Kernel code
> >   015e1d6d-01aca17f : Kernel data
> >   01bae000-01d03fff : Kernel bss
> >   26000000-35ffffff : Crash kernel
> > 7f679000-7f68efff : reserved
> >   7f679000-7f679003 : APEI ERST
> >   7f67900c-7f679016 : APEI ERST
> >   7f679060-7f67906b : APEI ERST
> >   7f68d000-7f68efff : APEI ERST
> > 7f68f000-7f6cdfff : ACPI Tables
> > 7f6ce000-7fffffff : reserved
> > 80000000-fdffffff : PCI Bus 0000:00
> >   d5800000-d5ffffff : PCI Bus 0000:08
> >     d5800000-d5ffffff : 0000:08:03.0
> >   d6000000-d9ffffff : PCI Bus 0000:01
> >     d6000000-d7ffffff : 0000:01:00.0
> >       d6000000-d7ffffff : bnx2
> >     d8000000-d9ffffff : 0000:01:00.1
> >       d8000000-d9ffffff : bnx2
> >   da000000-ddffffff : PCI Bus 0000:02
> >     da000000-dbffffff : 0000:02:00.0
> >       da000000-dbffffff : bnx2
> >     dc000000-ddffffff : 0000:02:00.1
> >       dc000000-ddffffff : bnx2
> >   de000000-deffffff : PCI Bus 0000:08
> >     de000000-de00ffff : 0000:08:03.0
> >     de7fc000-de7fffff : 0000:08:03.0
> >     de800000-deffffff : 0000:08:03.0
> >   df0ff800-df0ffbff : 0000:00:1a.7
> >     df0ff800-df0ffbff : ehci_hcd
> >   df0ffc00-df0fffff : 0000:00:1d.7
> >     df0ffc00-df0fffff : ehci_hcd
> >   df100000-df2fffff : PCI Bus 0000:03
> >     df100000-df1fffff : 0000:03:00.0
> >     df2ec000-df2effff : 0000:03:00.0
> >       df2ec000-df2effff : mpt
> >     df2f0000-df2fffff : 0000:03:00.0
> >       df2f0000-df2fffff : mpt
> >   e0000000-efffffff : PCI MMCONFIG 0000 [bus 00-ff]
> >     e0000000-efffffff : reserved
> >       e0000000-efffffff : pnp 00:09
> > fe000000-ffffffff : reserved
> >   fec00000-fec003ff : IOAPIC 0
> >   fec80000-fec803ff : IOAPIC 1
> >   fed00000-fed003ff : HPET 0
> >   fed40000-fed44fff : PCI Bus 0000:00
> >   fed90000-fed91fff : pnp 00:0b
> >   fee00000-fee00fff : Local APIC
> > 100000000-c7fffffff : System RAM
> > 
> > 
> > tim
> > 
> > 
> > 
> > On Mon, 2011-11-14 at 13:39 +0000, WANG Cong wrote:
> >> On Tue, 11 Oct 2011 16:39:05 -0700, Tim Hartrick wrote:
> >>
> >>> Kexec,
> >>>
> >>> I have been experiencing the crash below on Ubuntu 10.04 running
> >>> 2.6.32-34-server and 2.6.38-8-server as the crashkernel on X86_64. The
> >>> tools are:
> >>>
> >>> kexec-tools	1:2.0.2-1ubuntu3
> >>> makedumpfile	1.3.7-2
> >>> kdump-tools	1.3.7-2
> >>>
> >>> I would be interested to know if this is a known problem and if so
> >>> whether or not there is a patch in the pipeline to correct the problem.
> >>>
> >>> I will be happy to provide any other details that are required including
> >>> debug builds if necessary.
> >> ....
> >>>
> >>> [    1.322100] ioremap: invalid physical address db74000000000000 [  
> 
> 
> Searching db74000000000000 got several similar cases of this, all are
> about per cpu invalid crash_notes address, is this one more?
> 
> OTOH, Can you test latest mainline kernel?
> 
> ccing lkml and Tejun Heo
> 
>  
> >>> 1.327919] ------------[ cut here ]------------ [    1.332530] WARNING:
> >>> at /build/buildd/linux-2.6.32/arch/x86/mm/ioremap.c:120 __ioremap_caller
> >>> +0x360/0x3d0()
> >>
> >> This probably means that kexec-tools passed some incorrect
> >> kernel parameter to the second kernel.
> >>
> >> So, what is the cmdline of your second kernel? And what is your
> >> /proc/iomem of your first kernel?
> >>
> >> Cheers.
> >>
> >>
> >> _______________________________________________
> >> kexec mailing list
> >> kexec@...ts.infradead.org
> >> http://lists.infradead.org/mailman/listinfo/kexec
> > 
> > 
> > 
> > _______________________________________________
> > kexec mailing list
> > kexec@...ts.infradead.org
> > http://lists.infradead.org/mailman/listinfo/kexec
> 
> 
> 


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