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Date: Sun, 13 Jul 2008 19:30:47 +1000
From: Alex Samad <alex@...ad.com.au>
To: linux-kernel@...r.kernel.org
Subject: Page swap allocation failure 2.6.25
Hi
For a while now I have been receiving page swap allocation failures
Similar to http://lkml.org/lkml/2008/6/10/3 and
http://lkml.org/lkml/2008/2/19/298 and I have filed a bug with debian (
Bug#486300)
It seems like any time I put the system under load, transferring large
files across the network (1G nic, a r8186 and forcedeth and a
broadcom). I keep getting these errors
this will writing to a XFS parition
Jul 13 13:28:30 nas kernel: [ 648.120681] md2_raid5: page allocation
failure. order:2, mode:0x20
Jul 13 13:28:30 nas kernel: [ 648.120688] Pid: 1042, comm: md2_raid5
Not tainted 2.6.25-2-amd64 #1
Jul 13 13:28:30 nas kernel: [ 648.120689]
Jul 13 13:28:30 nas kernel: [ 648.120690] Call Trace:
Jul 13 13:28:30 nas kernel: [ 648.120694] <IRQ> [<ffffffff8027709a>]
__alloc_pages+0x2f8/0x312
Jul 13 13:28:30 nas kernel: [ 648.120729] [<ffffffff80294c63>]
kmem_getpages+0xc5/0x193
Jul 13 13:28:30 nas kernel: [ 648.120733] [<ffffffff8029529d>]
fallback_alloc+0x147/0x1c0
Jul 13 13:28:30 nas kernel: [ 648.120740] [<ffffffff80294ed8>]
kmem_cache_alloc_node+0x105/0x138
Jul 13 13:28:30 nas kernel: [ 648.120746] [<ffffffff803ac4ae>]
__alloc_skb+0x64/0x12d
Jul 13 13:28:30 nas kernel: [ 648.120756] [<ffffffff881b525f>]
:r8168:rtl8168_rx_fill+0x64/0x106
Jul 13 13:28:30 nas kernel: [ 648.120765] [<ffffffff881b563e>]
:r8168:rtl8168_rx_interrupt+0x324/0x392
Jul 13 13:28:30 nas kernel: [ 648.120774] [<ffffffff881b6920>]
:r8168:rtl8168_poll+0x36/0x184
Jul 13 13:28:30 nas kernel: [ 648.120783] [<ffffffff803b2e5b>]
net_rx_action+0xab/0x18c
Jul 13 13:28:30 nas kernel: [ 648.120790] [<ffffffff80239a80>]
__do_softirq+0x5c/0xd1
Jul 13 13:28:30 nas kernel: [ 648.120793] [<ffffffff8021de6f>]
ack_apic_level+0x38/0xd8
Jul 13 13:28:30 nas kernel: [ 648.120799] [<ffffffff8020d1ac>]
call_softirq+0x1c/0x28
Jul 13 13:28:30 nas kernel: [ 648.120804] [<ffffffff8020f208>]
do_softirq+0x3c/0x81
Jul 13 13:28:30 nas kernel: [ 648.120806] [<ffffffff802399e0>]
irq_exit+0x3f/0x83
Jul 13 13:28:30 nas kernel: [ 648.120809] [<ffffffff8020f468>]
do_IRQ+0xb9/0xd9
Jul 13 13:28:30 nas kernel: [ 648.120813] [<ffffffff8020c34d>]
ret_from_intr+0x0/0x19
Jul 13 13:28:30 nas kernel: [ 648.120815] <EOI> [<ffffffff8808c098>]
:async_memcpy:async_memcpy+0x98/0xe0
Jul 13 13:28:30 nas kernel: [ 648.120833] [<ffffffff88116c02>]
:raid456:async_copy_data+0xf0/0x128
Jul 13 13:28:30 nas kernel: [ 648.120844] [<ffffffff88117d40>]
:raid456:raid5_run_ops+0x1f6/0x4d4
Jul 13 13:28:30 nas kernel: [ 648.120854] [<ffffffff88118acc>]
:raid456:handle_stripe5+0xaae/0xac5
Jul 13 13:28:30 nas kernel: [ 648.120866] [<ffffffff8811ac47>]
:raid456:handle_stripe+0xd1a/0xd96
Jul 13 13:28:30 nas kernel: [ 648.120871] [<ffffffff80229403>]
__wake_up_common+0x41/0x74
Jul 13 13:28:30 nas kernel: [ 648.120878] [<ffffffff8022be94>]
__wake_up+0x38/0x4e
Jul 13 13:28:30 nas kernel: [ 648.120890] [<ffffffff8811afc9>]
:raid456:raid5d+0x306/0x316
Jul 13 13:28:30 nas kernel: [ 648.120908] [<ffffffff880f6ffd>]
:md_mod:md_thread+0xd7/0xed
Jul 13 13:28:30 nas kernel: [ 648.120913] [<ffffffff80246a44>]
autoremove_wake_function+0x0/0x2e
Jul 13 13:28:30 nas kernel: [ 648.120923] [<ffffffff880f6f26>]
:md_mod:md_thread+0x0/0xed
Jul 13 13:28:30 nas kernel: [ 648.120925] [<ffffffff8024691b>]
kthread+0x47/0x74
Jul 13 13:28:30 nas kernel: [ 648.120928] [<ffffffff8023036d>]
schedule_tail+0x27/0x5c
Jul 13 13:28:30 nas kernel: [ 648.120931] [<ffffffff8020ce08>]
child_rip+0xa/0x12
Jul 13 13:28:30 nas kernel: [ 648.120941] [<ffffffff802468d4>]
kthread+0x0/0x74
Jul 13 13:28:30 nas kernel: [ 648.120943] [<ffffffff8020cdfe>]
child_rip+0x0/0x12
Jul 13 13:28:30 nas kernel: [ 648.120946]
Jul 13 13:28:30 nas kernel: [ 648.120947] Mem-info:
Jul 13 13:28:30 nas kernel: [ 648.120949] Node 0 DMA per-cpu:
Jul 13 13:28:30 nas kernel: [ 648.120951] CPU 0: hi: 0, btch: 1
usd: 0
Jul 13 13:28:30 nas kernel: [ 648.120952] CPU 1: hi: 0, btch: 1
usd: 0
Jul 13 13:28:30 nas kernel: [ 648.120954] Node 0 DMA32 per-cpu:
Jul 13 13:28:30 nas kernel: [ 648.120955] CPU 0: hi: 186, btch: 31
usd: 127
Jul 13 13:28:30 nas kernel: [ 648.120957] CPU 1: hi: 186, btch: 31
usd: 191
Jul 13 13:28:30 nas kernel: [ 648.120958] Node 0 Normal per-cpu:
Jul 13 13:28:30 nas kernel: [ 648.120960] CPU 0: hi: 186, btch: 31
usd: 89
Jul 13 13:28:30 nas kernel: [ 648.120962] CPU 1: hi: 186, btch: 31
usd: 183
Jul 13 13:28:30 nas kernel: [ 648.120964] Active:10959 inactive:917990
dirty:65346 writeback:3076 unstable:0
Jul 13 13:28:30 nas kernel: [ 648.120965] free:5002 slab:37834
mapped:2069 pagetables:539 bounce:0
Jul 13 13:28:30 nas kernel: [ 648.120967] Node 0 DMA free:11944kB
min:20kB low:24kB high:28kB active:0kB inactive:0kB present:11384kB
pages_scanned:0 all_unreclaimable? yes
Jul 13 13:28:30 nas kernel: [ 648.120971] lowmem_reserve[]: 0 3254 3885
3885
Jul 13 13:28:30 nas kernel: [ 648.120973] Node 0 DMA32 free:7400kB
min:6668kB low:8332kB high:10000kB active:8468kB inactive:3134788kB
present:3332192kB pages_scanned:0 all_unreclaimable? no
Jul 13 13:28:30 nas kernel: [ 648.120977] lowmem_reserve[]: 0 0 631 631
Jul 13 13:28:30 nas kernel: [ 648.120979] Node 0 Normal free:664kB
min:1292kB low:1612kB high:1936kB active:35368kB inactive:537172kB
present:646400kB pages_scanned:0 all_unreclaimable? no
Jul 13 13:28:30 nas kernel: [ 648.120983] lowmem_reserve[]: 0 0 0 0
Jul 13 13:28:30 nas kernel: [ 648.120985] Node 0 DMA: 4*4kB 5*8kB
3*16kB 4*32kB 3*64kB 2*128kB 2*256kB 1*512kB 2*1024kB 0*2048kB 2*4096kB
= 11944kB
Jul 13 13:28:30 nas kernel: [ 648.120992] Node 0 DMA32: 1151*4kB
273*8kB 1*16kB 0*32kB 0*64kB 0*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB
0*4096kB = 7316kB
Jul 13 13:28:30 nas kernel: [ 648.120997] Node 0 Normal: 120*4kB 1*8kB
0*16kB 0*32kB 0*64kB 1*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB
= 616kB
Jul 13 13:28:30 nas kernel: [ 648.121004] 921869 total pagecache pages
Jul 13 13:28:30 nas kernel: [ 648.121005] Swap cache: add 31, delete 0,
find 0/0
Jul 13 13:28:30 nas kernel: [ 648.121007] Free swap = 4194172kB
Jul 13 13:28:30 nas kernel: [ 648.121008] Total swap = 4194296kB
Jul 13 13:28:30 nas kernel: [ 648.121009] Free swap: 4194172kB
Jul 13 13:28:30 nas kernel: [ 648.124409] 1015808 pages of RAM
Jul 13 13:28:30 nas kernel: [ 648.124409] 32483 reserved pages
Jul 13 13:28:30 nas kernel: [ 648.124409] 907806 pages shared
Jul 13 13:28:30 nas kernel: [ 648.124409] 31 pages swap cached
I also have nfsd causing the same problems and sshd when i use scp.
I have pages and pages of these dumps
Help
alex
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