Bug#533180: linux-image-amd64: page allocation failure within kernel swapper
Package: linux-image-amd64
Version: 2.6.26-2
Severity: normal
I run a standard amd64 kernel in a core 2 duo machine under heavy network traffic, and I keep getting tons of these (more than 28 in less that 2 days) the last few weeks, regardless of all reboots:
[186974.720505] swapper: page allocation failure. order:0, mode:0x20
[186974.720543] Pid: 0, comm: swapper Not tainted 2.6.26-2-amd64 #1
[186974.720577]
[186974.720578] Call Trace:
[186974.720626] <IRQ> [<ffffffff80276b64>] __alloc_pages_internal+0x3a6/0x3bf
[186974.720683] [<ffffffff802954bc>] kmem_getpages+0x96/0x164
[186974.720719] [<ffffffff80295b1c>] fallback_alloc+0x16b/0x1e1
[186974.720758] [<ffffffff8029572e>] kmem_cache_alloc_node+0x105/0x138
[186974.720797] [<ffffffff803b5a2f>] __alloc_skb+0x3c/0x12d
[186974.720834] [<ffffffff803f0497>] tcp_delack_timer+0x0/0x1eb
[186974.720869] [<ffffffff803eda19>] tcp_send_ack+0x28/0xca
[186974.720905] [<ffffffff803f061a>] tcp_delack_timer+0x183/0x1eb
[186974.720940] [<ffffffff803f0497>] tcp_delack_timer+0x0/0x1eb
[186974.720977] [<ffffffff8023ca35>] run_timer_softirq+0x16a/0x1e2
[186974.721015] [<ffffffff802393fb>] __do_softirq+0x5c/0xd1
[186974.721052] [<ffffffff8020d2cc>] call_softirq+0x1c/0x28
[186974.721087] [<ffffffff8020f3d0>] do_softirq+0x3c/0x81
[186974.721121] [<ffffffff8023935b>] irq_exit+0x3f/0x83
[186974.721154] [<ffffffff8020f630>] do_IRQ+0xb9/0xd9
[186974.721188] [<ffffffff80212c37>] mwait_idle+0x0/0x4d
[186974.721222] [<ffffffff8020c46d>] ret_from_intr+0x0/0x19
[186974.721255] <EOI> [<ffffffff80212c78>] mwait_idle+0x41/0x4d
[186974.721298] [<ffffffff8020ac79>] cpu_idle+0x89/0xb3
[186974.721337]
[186974.721360] Mem-info:
[186974.721385] Node 0 DMA per-cpu:
[186974.721415] CPU 0: hi: 0, btch: 1 usd: 0
[186974.721448] CPU 1: hi: 0, btch: 1 usd: 0
[186974.721480] Node 0 DMA32 per-cpu:
[186974.721510] CPU 0: hi: 186, btch: 31 usd: 85
[186974.725684] CPU 1: hi: 186, btch: 31 usd: 163
[186974.725715] Node 0 Normal per-cpu:
[186974.725745] CPU 0: hi: 186, btch: 31 usd: 156
[186974.725777] CPU 1: hi: 186, btch: 31 usd: 176
[186974.725811] Active:432816 inactive:512117 dirty:47642 writeback:1354 unstable:0
[186974.725812] free:4360 slab:37261 mapped:147385 pagetables:2094 bounce:0
[186974.725903] Node 0 DMA free:11712kB min:20kB low:24kB high:28kB active:0kB inactive:0kB present:10784kB pages_scanned:0 all_unreclaimable? yes
[186974.725975] lowmem_reserve[]: 0 3254 3948 3948
[186974.726012] Node 0 DMA32 free:5220kB min:6616kB low:8268kB high:9924kB active:1405280kB inactive:1720956kB present:3332192kB pages_scanned:0 all_unreclaimable? no
[186974.726107] lowmem_reserve[]: 0 0 694 694
[186974.726142] Node 0 Normal free:508kB min:1412kB low:1764kB high:2116kB active:325984kB inactive:327512kB present:711040kB
[186974.726236] lowmem_reserve[]: 0 0 0 0
[186974.726271] Node 0 DMA: 6*4kB 1*8kB 6*16kB 6*32kB 4*64kB 1*128kB 1*256kB 1*512kB 2*1024kB 0*2048kB 2*4096kB = 11712kB
[186974.726352] Node 0 DMA32: 1*4kB 1*8kB 1*16kB 0*32kB 1*64kB 0*128kB 0*256kB 0*512kB 1*1024kB 0*2048kB 1*4096kB = 5212kB
[186974.726433] Node 0 Normal: 31*4kB 1*8kB 1*16kB 1*32kB 0*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 564kB
[186974.726514] 895787 total pagecache pages
[186974.726544] Swap cache: add 52586, delete 47804, find 34432/40126
[186974.726580] Free swap = 1900728kB
[186974.726608] Total swap = 1959800kB
[186974.728623] 1032192 pages of RAM
[186974.728623] 33128 reserved pages
[186974.728623] 964284 pages shared
[186974.728623] 4782 pages swap cached
-- System Information:
Debian Release: 5.0.1
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.26-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
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