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  1. #1

    bw_get: page_allocation_failure?


    I am running OpenWRT/Gargoyle on a WNDR3700v2 router. I have it set up to send syslog messages to my Kiwi Syslog server. It's been running fine for a few days, but all of the sudden for the past several hours I'm getting flooded with what I think are bad memory errors? About 1.5mB worth of text of these errors for the past one and a half hours. Well it's a very good router with 64mB of RAM, I really hope it isn't the router's fault, because I also have a SWAP partition on an external USB 80GB hard drive, is there any way to tell which memory had the error? I mean obviously the router is still working, or you wouldn't be seeing this post. But is my router about to die?

    Code:
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.170000] bw_get: page allocation failure: order:2, mode:0x4020
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.170000] Call Trace:[<80072a50>] 0x80072a50
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.180000] [<802797e4>] 0x802797e4
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.180000] [<802797e4>] 0x802797e4
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.180000] [<800af678>] 0x800af678
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.190000] [<800b1978>] 0x800b1978
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.190000] [<8021bf28>] 0x8021bf28
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.200000] [<82f30000>] 0x82f30000
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.200000] [<82f30000>] 0x82f30000
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.200000] [<800b19f0>] 0x800b19f0
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.210000] [<82f30000>] 0x82f30000
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.210000] [<82f335d0>] 0x82f335d0
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.220000] [<8009c688>] 0x8009c688
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.220000] [<801dcff8>] 0x801dcff8
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.220000] [<800c59d4>] 0x800c59d4
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.230000] [<8020d5dc>] 0x8020d5dc
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.230000] [<800ec6f0>] 0x800ec6f0
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.230000] [<8020d63c>] 0x8020d63c
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.240000] [<8021c0e8>] 0x8021c0e8
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.240000] [<801da4d8>] 0x801da4d8
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.250000] [<801d9ad0>] 0x801d9ad0
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.250000] [<8006a284>] 0x8006a284
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.250000] 
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.260000] Mem-Info:
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.260000] Normal per-cpu:
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.260000] CPU    0: hi:   18, btch:   3 usd:  11
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.270000] active_anon:1463 inactive_anon:1820 isolated_anon:0
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.270000]  active_file:2466 inactive_file:3499 isolated_file:0
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.270000]  unevictable:0 dirty:414 writeback:0 unstable:0
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.270000]  free:345 slab_reclaimable:776 slab_unreclaimable:2760
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.270000]  mapped:522 shmem:119 pagetables:126 bounce:0
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.300000] Normal free:1380kB min:1016kB low:1268kB high:1524kB active_anon:5852kB inactive_anon:7280kB active_file:9864kB inactive_file:13996kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0kB dirty:1656kB writeback:0kB mapped:2088kB shmem:476kB slab_reclaimable:3104kB slab_unreclaimable:11040kB kernel_stack:600kB pagetables:504kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.340000] lowmem_reserve[]: 0 0
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.340000] Normal: 341*4kB 0*8kB 1*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1380kB
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.350000] 6451 total pagecache pages
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.360000] 367 pages in swap cache
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.360000] Swap cache stats: add 8740, delete 8373, find 40893/41800
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.370000] Free swap  = 253096kB
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.370000] Total swap = 257004kB
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.380000] 16384 pages RAM
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.380000] 947 pages reserved
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.380000] 4686 pages shared
    2013-09-22 20:32:57	Kernel.Warning	192.168.1.1	Sep 22 20:32:52 Gargoyle kernel: [92607.390000] 11720 pages non-shared

  2. #2
    Hi

    I don't think your router is about to die.
    Check here and here for more informations.

    Hope it helps

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