[Lustre-discuss] page allocation failure

[Lu Wang]

Dear list,
    I found these errors on OSS,  is this a dangerours signal ?


Nov 20 10:43:16 boss02 kernel: ll_ost_io_126: page allocation failure.
order:4, mode:0x50
Nov 20 10:43:16 boss02 kernel: ll_ost_io_42: page allocation failure.
order:4, mode:0x50
Nov 20 10:43:19 boss02 kernel:  [<fb671a80>]<4>ll_ost_io_47: page
allocation failure. order:4, mode:0x50
Nov 20 10:43:26 boss02 kernel: HighMem: 688*4kB <4>ll_ost_io_133: page
allocation failure. order:4, mode:0x50
Nov 20 12:02:27 boss02 kernel: ll_ost_io_25: page allocation failure.
order:4, mode:0x50
Nov 20 12:02:27 boss02 kernel: ll_ost_io_13: page allocation failure.
order:4, mode:0x50
Nov 20 12:02:27 boss02 kernel:  [<fb65b009>]<4>ll_ost_io_09: page
allocation failure. order:4, mode:0x50
Nov 20 12:02:27 boss02 kernel:  [<fb0b715e>]<4>ll_ost_io_111: page
allocation failure. order:4, mode:0x50
Nov 20 12:11:08 boss02 kernel: ll_ost_io_85: page allocation failure.
order:4, mode:0x50
Nov 20 12:11:08 boss02 kernel: ll_ost_io_23: page allocation failure.
order:4, mode:0x50
Nov 20 12:11:10 boss02 kernel:  [<fb66fcf5>]<4>ll_ost_io_134: page
allocation failure. order:4, mode:0x50
Nov 20 12:11:15 boss02 kernel:  [<c01c41ca>]<4>ll_ost_io_109: page
allocation failure. order:4, mode:0x50
Nov 20 16:39:12 boss02 kernel: ll_ost_io_122: page allocation failure.
order:4, mode:0x50
Nov 20 16:39:12 boss02 kernel: ll_ost_io_32: page allocation failure.
order:4, mode:0x50
Nov 20 16:39:12 boss02 kernel:  [<c0146301>]<4>ll_ost_io_90: page
allocation failure. order:4, mode:0x50
Nov 20 16:39:12 boss02 kernel: ll_ost_io_126: page allocation failure.
order:4, mode:0x50
Nov 20 18:13:20 boss02 kernel: ll_ost_io_15: page allocation failure.
order:4, mode:0x50
Nov 20 18:13:20 boss02 kernel: ll_ost_io_26: page allocation failure.
order:4, mode:0x50
Nov 20 18:13:20 boss02 kernel:  [<c01425cc>]<4>ll_ost_io_48: page
allocation failure. order:4, mode:0x50
Nov 20 18:13:21 boss02 kernel:  [<c01c0fba>]<4>ll_ost_io_105: page
allocation failure. order:4, mode:0x50
Nov 20 19:40:37 boss02 kernel: ll_ost_io_21: page allocation failure.
order:4, mode:0x50
Nov 20 19:40:37 boss02 kernel: ll_ost_io_121: page allocation failure.
order:4, mode:0x50
Nov 20 19:40:37 boss02 kernel: ll_ost_io_128: page allocation failure.
order:4, mode:0x50
Nov 20 19:40:38 boss02 kernel:  [<c01259d4>]<4>ll_ost_io_81: page
allocation failure. order:4, mode:0x50
Nov 21 00:51:51 boss02 kernel: ll_ost_io_46: page allocation failure.
order:4, mode:0x50
Nov 21 00:51:51 boss02 kernel: ll_ost_io_73: page allocation failure.
order:4, mode:0x50
Nov 21 00:51:51 boss02 kernel:  [<c0145f2d>]<4>ll_ost_io_08: page
allocation failure. order:4, mode:0x50
Nov 21 00:51:51 boss02 kernel:  [<c0145f2d>]<4>ll_ost_io_67: page
allocation failure. order:4, mode:0x50
Nov 21 05:48:44 boss02 kernel: ll_ost_io_38: page allocation failure.
order:4, mode:0x50
Nov 21 05:48:44 boss02 kernel: ll_ost_io_114: page allocation failure.
order:4, mode:0x50
Nov 21 05:48:44 boss02 kernel:  [<c0146301>]<4>ll_ost_io_06: page
allocation failure. order:4, mode:0x50
Nov 21 05:48:44 boss02 kernel:  [<c01451ed>]<4>ll_ost_io_86: page
allocation failure. order:4, mode:0x50


Nov 20 19:40:45 boss02 kernel: Free pages:     7418824kB (7398656kB
HighMem)
Nov 20 19:40:45 boss02 kernel: Active:12247 inactive:93310 dirty:2
writeback:0 unstable:0 free:1854706 slab:65523 mapped:5465 pagetables:
312
Nov 20 19:40:45 boss02 kernel: DMA free:12784kB min:64kB low:80kB high:
96kB active:0kB inactive:0kB present:16384kB pages_scanned:0
all_unreclaimable? yes
Nov 20 19:40:45 boss02 kernel: protections[]: 0 0 0
Nov 20 19:40:45 boss02 kernel: Normal free:7384kB min:3728kB low:
4660kB high:5592kB active:21472kB inactive:352196kB present:901120kB
pages_scanned:0 all_unreclaimable? no
Nov 20 19:40:45 boss02 kernel: protections[]: 0 0 0
Nov 20 19:40:45 boss02 kernel: HighMem free:7398656kB min:512kB low:
640kB high:768kB active:27516kB inactive:21044kB present:8519676kB
pages_scanned:0 all_unreclaimable? no
Nov 20 19:40:45 boss02 kernel: protections[]: 0 0 0
Nov 20 19:40:45 boss02 kernel: DMA: 4*4kB 4*8kB 4*16kB 2*32kB 3*64kB
3*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 2*4096kB = 12784kB
Nov 20 19:40:45 boss02 kernel: Normal: 640*4kB 109*8kB 127*16kB
60*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB =
7384kB
Nov 20 19:40:45 boss02 kernel: HighMem: 376*4kB 1162*8kB 815*16kB
299*32kB 160*64kB 61*128kB 34*256kB 25*512kB 8*1024kB 1*2048kB
tcp_clean_rtx_queue+0x255/0x35f
Nov 20 19:40:46 boss02 kernel: 1786*4096kB = 7398656kB
Nov 20 19:40:46 boss02 kernel: Swap cache: add 0, delete 0, find 0/0,
race 0+0
Nov 20 19:40:46 boss02 kernel: 0 bounce buffer pages
Nov 20 19:40:46 boss02 kernel: Free swap:       16386292kB
Nov 20 19:40:46 boss02 kernel:  [<c027dcbe>] __kfree_skb+0xf4/0xf7
Nov 20 19:40:46 boss02 kernel:  [<c02b162a>] tcp_v4_do_rcv+0x1b/0xe9
Nov 20 19:40:46 boss02 kernel:  [<fb18fd06>] ost_handle+0xe56/0x5790
[ost]
Nov 20 19:40:46 boss02 kernel:  [<c0299ba8>]DMA per-cpu:
Nov 20 19:40:46 boss02 kernel: cpu 0 hot: low 2, high 6, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 0 cold: low 0, high 2, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 1 hot: low 2, high 6, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 1 cold: low 0, high 2, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 2 hot: low 2, high 6, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 2 cold: low 0, high 2, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 3 hot: low 2, high 6, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 3 cold: low 0, high 2, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 4 hot: low 2, high 6, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 4 cold: low 0, high 2, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 5 hot: low 2, high 6, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 5 cold: low 0, high 2, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 6 hot: low 2, high 6, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 6 cold: low 0, high 2, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 7 hot: low 2, high 6, batch 1
Nov 20 19:40:46 boss02 kernel: cpu 7 cold: low 0, high 2, batch 1
Nov 20 19:40:46 boss02 kernel: Normal per-cpu:
Nov 20 19:40:46 boss02 kernel: cpu 0 hot: low 32, high 96, batch 16
Nov 20 19:40:46 boss02 kernel: cpu 0 cold: low 0, high 32, batch 16
Nov 20 19:40:46 boss02 kernel: cpu 1 hot: low 32, high 96, batch 16
Nov 20 19:40:46 boss02 kernel: cpu 1 cold: low 0, high 32, batch 16
Nov 20 19:40:46 boss02 kernel: cpu 2 hot: low 32, high 96, batch 16
Nov 20 19:40:46 boss02 kernel: cpu 2 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 3 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 3 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 4 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 4 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 5 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 5 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 6 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 6 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 7 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 7 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: HighMem per-cpu:
Nov 20 19:40:47 boss02 kernel: cpu 0 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 0 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 1 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 1 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 2 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 2 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 3 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 3 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 4 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 4 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 5 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 5 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 6 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 6 cold: low 0, high 32, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 7 hot: low 32, high 96, batch 16
Nov 20 19:40:47 boss02 kernel: cpu 7 cold: low 0, high 32, batch 16