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Date: Fri, 25 Jul 2008 15:26:09 +0200 From: Udo van den Heuvel <udovdh@...all.nl> To: LKML <linux-kernel@...r.kernel.org> Subject: What to do with `kswapd0: page allocation failure. ` ? Hello, Found a few of these logged. See below. What are they? Harmfull? Bug? Kind regards, Udo Jul 20 18:39:03 testboard kernel: kswapd0: page allocation failure. order:2, mode:0x20 Jul 20 18:39:03 testboard kernel: Pid: 235, comm: kswapd0 Not tainted 2.6.25.6 #8 Jul 20 18:39:03 testboard kernel: Jul 20 18:39:03 testboard kernel: Call Trace: Jul 20 18:39:03 testboard kernel: <IRQ> [<ffffffff8027c91e>] __alloc_pages+0x2de/0x3b0 Jul 20 18:39:03 testboard kernel: [<ffffffff8029af27>] cache_alloc_refill+0x307/0x5c0 Jul 20 18:39:03 testboard kernel: [<ffffffff8029b2b3>] __kmalloc+0xd3/0xe0 Jul 20 18:39:03 testboard kernel: [<ffffffff8047c2dd>] __alloc_skb+0x6d/0x150 Jul 20 18:39:03 testboard kernel: [<ffffffff803c2d78>] nv_alloc_rx_optimized+0x158/0x1b0 Jul 20 18:39:03 testboard kernel: [<ffffffff803c8b72>] nv_napi_poll+0x242/0x890 Jul 20 18:39:03 testboard kernel: [<ffffffff804801ef>] net_rx_action+0x8f/0x160 Jul 20 18:39:03 testboard kernel: [<ffffffff8023e4da>] __do_softirq+0x5a/0xc0 Jul 20 18:39:03 testboard kernel: [<ffffffff8020c75c>] call_softirq+0x1c/0x30 Jul 20 18:39:03 testboard kernel: [<ffffffff8020e6e5>] do_softirq+0x35/0x70 Jul 20 18:39:03 testboard kernel: [<ffffffff8023e0a5>] irq_exit+0x45/0x50 Jul 20 18:39:03 testboard kernel: [<ffffffff8020e98f>] do_IRQ+0x9f/0x130 Jul 20 18:39:03 testboard kernel: [<ffffffff8020bab1>] ret_from_intr+0x0/0xa Jul 20 18:39:03 testboard kernel: <EOI> [<ffffffff8027bdbd>] free_hot_cold_page+0x18d/0x290 Jul 20 18:39:03 testboard kernel: [<ffffffff8027bf00>] __pagevec_free+0x40/0x50 Jul 20 18:39:03 testboard kernel: [<ffffffff8027ef80>] __pagevec_release_nonlru+0x60/0x70 Jul 20 18:39:03 testboard kernel: [<ffffffff8028114b>] shrink_page_list+0x30b/0x6c0 Jul 20 18:39:03 testboard kernel: [<ffffffff802805ba>] isolate_lru_pages+0x19a/0x240 Jul 20 18:39:03 testboard kernel: [<ffffffff8028169e>] shrink_inactive_list+0x19e/0x4f0 Jul 20 18:39:03 testboard kernel: [<ffffffff80281aa4>] shrink_zone+0xb4/0x130 Jul 20 18:39:03 testboard kernel: [<ffffffff80282258>] kswapd+0x568/0x5d0 Jul 20 18:39:03 testboard kernel: [<ffffffff80280660>] isolate_pages_global+0x0/0x40 Jul 20 18:39:03 testboard kernel: [<ffffffff8024eb10>] autoremove_wake_function+0x0/0x30 Jul 20 18:39:03 testboard kernel: [<ffffffff80281cf0>] kswapd+0x0/0x5d0 Jul 20 18:39:03 testboard kernel: [<ffffffff8024e777>] kthread+0x47/0x80 Jul 20 18:39:03 testboard kernel: [<ffffffff80235249>] schedule_tail+0x39/0x80 Jul 20 18:39:03 testboard kernel: [<ffffffff8020c3e8>] child_rip+0xa/0x12 Jul 20 18:39:03 testboard kernel: [<ffffffff8024e730>] kthread+0x0/0x80 Jul 20 18:39:03 testboard kernel: [<ffffffff8020c3de>] child_rip+0x0/0x12 Jul 20 18:39:03 testboard kernel: Jul 20 18:39:03 testboard kernel: Mem-info: Jul 20 18:39:03 testboard kernel: DMA per-cpu: Jul 20 18:39:03 testboard kernel: CPU 0: hi: 0, btch: 1 usd: 0 Jul 20 18:39:03 testboard kernel: CPU 1: hi: 0, btch: 1 usd: 0 Jul 20 18:39:03 testboard kernel: DMA32 per-cpu: Jul 20 18:39:03 testboard kernel: CPU 0: hi: 186, btch: 31 usd: 155 Jul 20 18:39:03 testboard kernel: CPU 1: hi: 186, btch: 31 usd: 69 Jul 20 18:39:03 testboard kernel: Normal per-cpu: Jul 20 18:39:03 testboard kernel: CPU 0: hi: 186, btch: 31 usd: 183 Jul 20 18:39:03 testboard kernel: CPU 1: hi: 186, btch: 31 usd: 171 Jul 20 18:39:03 testboard kernel: Active:434125 inactive:510998 dirty:29134 writeback:0 unstable:0 Jul 20 18:39:03 testboard kernel: free:14760 slab:31823 mapped:40791 pagetables:12138 bounce:0 Jul 20 18:39:03 testboard kernel: DMA free:11052kB min:20kB low:24kB high:28kB active:0kB inactive:0kB present:10608kB pages_scanned:0 all_unreclaimable? yes Jul 20 18:39:03 testboard kernel: lowmem_reserve[]: 0 3511 4016 4016 Jul 20 18:39:03 testboard kernel: DMA32 free:46820kB min:7080kB low:8848kB high:10620kB active:1404960kB inactive:1934108kB present:3595424kB pages_scanned:0 all_unreclaimable? no Jul 20 18:39:03 testboard kernel: lowmem_reserve[]: 0 0 505 505 Jul 20 18:39:03 testboard kernel: Normal free:1168kB min:1016kB low:1268kB high:1524kB active:331540kB inactive:109884kB present:517120kB pages_scanned:0 all_unreclaimable? no Jul 20 18:39:03 testboard kernel: lowmem_reserve[]: 0 0 0 0 Jul 20 18:39:03 testboard kernel: DMA: 1*4kB 3*8kB 3*16kB 3*32kB 4*64kB 3*128kB 2*256kB 1*512kB 3*1024kB 1*2048kB 1*4096kB = 11052kB Jul 20 18:39:03 testboard kernel: DMA32: 4100*4kB 3719*8kB 1*16kB 0*32kB 0*64kB 1*128kB 0*256kB 1*512kB 0*1024kB 0*2048kB 0*4096kB = 46808kB Jul 20 18:39:03 testboard kernel: Normal: 174*4kB 46*8kB 5*16kB 0*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1208kB Jul 20 18:39:03 testboard kernel: 553286 total pagecache pages Jul 20 18:39:03 testboard kernel: Swap cache: add 260, delete 260, find 33/38 Jul 20 18:39:03 testboard kernel: Free swap = 4144584kB Jul 20 18:39:03 testboard kernel: Total swap = 4144736kB Jul 20 18:39:03 testboard kernel: Free swap: 4144584kB Jul 20 18:39:03 testboard kernel: 1179648 pages of RAM Jul 20 18:39:03 testboard kernel: 167096 reserved pages Jul 20 18:39:03 testboard kernel: 685887 pages shared Jul 20 18:39:03 testboard kernel: 0 pages swap cached -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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