On Tue, 2007-08-28 at 12:55 +0200, Richard Mittendorfer wrote:
> Hello,
>
> The box was up for 9 days when this one showed up. Currently rebuilding
> w/ cfs lastest version.
I'm curious why you think this is related to the scheduler?
> kernel: gs: page allocation failure. order:1, mode:0x4020
> kernel: [<c0150070>] __alloc_pages+0x2f0/0x340
> kernel: [<c0169edc>] __slab_alloc+0x1dc/0x860
> kernel: [<c03569ed>] ip_local_deliver+0xfd/0x250
> kernel: [<c0356160>] ip_local_deliver_finish+0x0/0x1b0
> kernel: [<c0326d52>] __netdev_alloc_skb+0x22/0x50
> kernel: [<c016ac7b>] __kmalloc_track_caller+0x6b/0x70
> kernel: [<c0326d52>] __netdev_alloc_skb+0x22/0x50
> kernel: [<c0326a07>] __alloc_skb+0x57/0x120
> kernel: [<c0326d52>] __netdev_alloc_skb+0x22/0x50
> kernel: [<c02a31f4>] e100_rx_alloc_skb+0x24/0xa0
> kernel: [<c02a59a0>] e100_poll+0x1b0/0x430
> kernel: [<c01274a0>] process_timeout+0x0/0x10
> kernel: [<c032d34c>] net_rx_action+0x6c/0x170
> kernel: [<c0123f62>] __do_softirq+0x42/0x90
> kernel: [<c010691c>] do_softirq+0x5c/0xb0
> kernel: [<c016f0a4>] vfs_read+0x154/0x1d0
> kernel: [<c0148460>] handle_edge_irq+0x0/0xf0
> kernel: [<c0123e9a>] irq_exit+0x5a/0x60
> kernel: [<c01069ec>] do_IRQ+0x7c/0xc0
> kernel: [<c016f1e1>] sys_read+0x41/0x70
> kernel: [<c0104b7f>] common_interrupt+0x23/0x28
> kernel: =======================
> kernel: Mem-info:
> kernel: DMA per-cpu:
> kernel: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> kernel: Normal per-cpu:
> kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 17 Cold: hi: 62, btch: 15 usd: 57
> kernel: Active:106252 inactive:15242 dirty:9376 writeback:0 unstable:0
> kernel: free:1508 slab:3818 mapped:6284 pagetables:453 bounce:0
> kernel: DMA free:1988kB min:64kB low:80kB high:96kB active:9244kB inactive:128kB present:16256kB pages_scanned:33 all_unreclaimable? no
> kernel: lowmem_reserve[]: 0 491
> kernel: Normal free:4044kB min:1980kB low:2472kB high:2968kB active:415764kB inactive:60840kB present:502920kB pages_scanned:140 all_unreclaimable? no
> kernel: lowmem_reserve[]: 0 0
> kernel: DMA: 21*4kB 0*8kB 1*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 0*2048kB 0*4096kB = 1988kB
> kernel: Normal: 917*4kB 1*8kB 1*16kB 1*32kB 1*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 4044kB
> kernel: Swap cache: add 6475, delete 6087, find 125398/125927, race 0+0
> kernel: Free swap = 1171308kB
> kernel: Total swap = 1179344kB
> kernel: Free swap: 1171308kB
> kernel: 130816 pages of RAM
> kernel: 0 pages of HIGHMEM
> kernel: 2224 reserved pages
> kernel: 92116 pages shared
> kernel: 388 pages swap cached
> kernel: 9376 pages dirty
> kernel: 0 pages writeback
> kernel: 6284 pages mapped
> kernel: 3818 pages slab
> kernel: 453 pages pagetables
Also curious why it failed, looks like it just hit the watermarks.
Could you provide us with the content of /proc/zoneinfo of that kernel?
Also, do you use SLUB or SLAB?
Normally these errors occur because of jumbo frames, but e100 doesn't do
that, so it seems an order-1 page was used to back smaller objects.
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