Bug#487219: linux-image-2.6.18-6-686: linux-image-2.6.18-6 page faults
On Fri, Jun 20, 2008 at 12:27:19PM +0200, Eric Van Buggenhaut wrote:
> Package: linux-image-2.6.18-6-686
> Version: 2.6.18.dfsg.1-18etch6
> Severity: important
>
> Every 2-3 days our main server goes nuts with memory/swap problems:
>
> Jun 18 20:24:30 mekas kernel: oom-killer: gfp_mask=0x201d2, order=0
> Jun 18 20:24:30 mekas kernel: [<c0144553>] out_of_memory+0x25/0x13a
> Jun 18 20:24:30 mekas kernel: [<c01459bc>] __alloc_pages+0x1f5/0x275
> Jun 18 20:24:30 mekas kernel: [<c0146b6b>]
> __do_page_cache_readahead+0xc8/0x1e8Jun 18 20:24:30 mekas kernel:
> [<c011624d>] __wake_up_common+0x2f/0x53
> Jun 18 20:24:30 mekas kernel: [<c011669e>] __wake_up+0x2a/0x3d
> Jun 18 20:24:30 mekas kernel: [<c0143c64>] filemap_nopage+0x15b/0x313
> Jun 18 20:24:30 mekas kernel: [<c014c128>]
> __handle_mm_fault+0x26e/0x740
> Jun 18 20:24:30 mekas kernel: [<c01154b6>] do_page_fault+0x18a/0x481
> Jun 18 20:24:30 mekas kernel: [<c011532c>] do_page_fault+0x0/0x481
> Jun 18 20:24:30 mekas kernel: [<c01037f9>] error_code+0x39/0x40
> Jun 18 20:24:30 mekas kernel: Mem-info:
> Jun 18 20:24:30 mekas kernel: DMA per-cpu:
> Jun 18 20:24:30 mekas kernel: cpu 0 hot: high 0, batch 1 used:0
> Jun 18 20:24:30 mekas kernel: cpu 0 cold: high 0, batch 1 used:0
> Jun 18 20:24:30 mekas kernel: cpu 1 hot: high 0, batch 1 used:0
> Jun 18 20:24:30 mekas kernel: cpu 1 cold: high 0, batch 1 used:0
> Jun 18 20:24:30 mekas kernel: DMA32 per-cpu: empty
> Jun 18 20:24:30 mekas kernel: Normal per-cpu:
> Jun 18 20:24:30 mekas kernel: cpu 0 hot: high 186, batch 31 used:184
> Jun 18 20:24:30 mekas kernel: cpu 0 cold: high 62, batch 15 used:14
> Jun 18 20:24:30 mekas kernel: cpu 1 hot: high 186, batch 31 used:156
> Jun 18 20:24:30 mekas kernel: cpu 1 cold: high 62, batch 15 used:14
> Jun 18 20:24:30 mekas kernel: HighMem per-cpu: empty
> Jun 18 20:24:30 mekas kernel: Free pages: 4864kB (0kB HighMem)
> Jun 18 20:24:30 mekas kernel: Active:61167 inactive:60171 dirty:0
> writeback:0 unstable:0 free:1216 slab:3607 mapped:48 pagetables:968
> Jun 18 20:24:30 mekas kernel: DMA free:2068kB min:88kB low:108kB
> high:132kB active:6648kB inactive:4448kB present:16384kB
> pages_scanned:18792 all_unreclaimable? yes
> Jun 18 20:24:30 mekas kernel: lowmem_reserve[]: 0 0 495 495
> Jun 18 20:24:30 mekas kernel: DMA32 free:0kB min:0kB low:0kB high:0kB
> active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable?
> no
> Jun 18 20:24:30 mekas kernel: lowmem_reserve[]: 0 0 495 495
> Jun 18 20:24:30 mekas kernel: Normal free:2796kB min:2800kB low:3500kB
> high:4200kB active:238020kB inactive:236236kB present:507328kB
> pages_scanned:624196 all_unreclaimable? yes
> Jun 18 20:24:30 mekas kernel: lowmem_reserve[]: 0 0 0 0
> Jun 18 20:24:30 mekas kernel: HighMem free:0kB min:128kB low:128kB
> high:128kB active:0kB inactive:0kB present:0kB pages_scanned:0
> all_unreclaimable? no
> Jun 18 20:24:30 mekas kernel: lowmem_reserve[]: 0 0 0 0
> Jun 18 20:24:30 mekas kernel: DMA: 1*4kB 0*8kB 1*16kB 0*32kB 0*64kB
> 0*128kB 0*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 2068kB
> Jun 18 20:24:30 mekas kernel: DMA32: empty
> Jun 18 20:24:30 mekas kernel: Normal: 11*4kB 10*8kB 3*16kB 4*32kB 1*64kB
> 1*128kB 1*256kB 0*512kB 0*1024kB 1*2048kB 0*4096kB = 2796kB
> Jun 18 20:24:30 mekas kernel: HighMem: empty
> Jun 18 20:24:30 mekas kernel: Swap cache: add 1578772, delete 1578740,
> find 27878725/27997876, race 0+3428
> Jun 18 20:24:30 mekas kernel: Free swap = 0kB
> Jun 18 20:24:30 mekas kernel: Total swap = 586332kB
> Jun 18 20:24:30 mekas kernel: Free swap: 0kB
> Jun 18 20:24:30 mekas kernel: oom-killer: gfp_mask=0x201d2, order=0
> Jun 18 20:24:30 mekas kernel: [<c0144553>] out_of_memory+0x25/0x13a
>
> ...
>
> entering a loop.
>
> No reboot works anymore, we have to shut it down pressing the power
> button.
beside adding more ram to your server, you could try 2.6.24 etch+half
-> http://wiki.debian.org/EtchAndAHalf
--
maks
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