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Date: Wed, 23 Jan 2008 23:40:54 +0100 From: Matthias Wolle <Matthias.Wolle@....de> To: Andrew Morton <akpm@...ux-foundation.org> Cc: linux-kernel@...r.kernel.org Subject: Re: LowFree/LowMem problem On Wednesday 23 January 2008 23:06 Andrew Morton wrote: > Can you please send the full dmesg output from one such oom-killing event? Jan 17 23:31:58 franklin72 kernel: sshd invoked oom-killer: gfp_mask=0xd0, order=0, oomkilladj=0 Jan 17 23:31:58 franklin72 kernel: cat invoked oom-killer: gfp_mask=0x84d0, order=0, oomkilladj=0 Jan 17 23:31:58 franklin72 kernel: [<c014af39>] out_of_memory+0x69/0x1a4 Jan 17 23:31:58 franklin72 kernel: [<c014c588>] __alloc_pages+0x20a/0x291 Jan 17 23:31:58 franklin72 kernel: [<c0153618>] __pte_alloc+0x11/0x94 Jan 17 23:31:58 franklin72 kernel: [<c015439e>] handle_mm_fault+0xa7/0x7bd Jan 17 23:31:58 franklin72 kernel: [<c0119aa2>] do_page_fault+0x0/0x751 Jan 17 23:31:58 franklin72 kernel: [<c0119d56>] do_page_fault+0x2b4/0x751 Jan 17 23:31:58 franklin72 kernel: [<c0157442>] mmap_region+0x32f/0x3eb Jan 17 23:31:58 franklin72 kernel: [<c0119aa2>] do_page_fault+0x0/0x751 Jan 17 23:31:58 franklin72 kernel: [<c02e03d2>] error_code+0x72/0x78 Jan 17 23:31:58 franklin72 kernel: [<c01e3091>] clear_user+0x27/0x32 Jan 17 23:31:58 franklin72 kernel: [<c0188691>] padzero+0x16/0x24 Jan 17 23:31:58 franklin72 kernel: [<c0189082>] load_elf_binary+0x7d4/0x142b Jan 17 23:31:58 franklin72 kernel: [<c0154d07>] get_user_pages+0x253/0x2be Jan 17 23:31:58 franklin72 kernel: [<c015190e>] page_address+0x78/0x98 Jan 17 23:31:58 franklin72 kernel: [<c0151a66>] kmap_high+0x1a/0x171 Jan 17 23:31:58 franklin72 kernel: [<c015190e>] page_address+0x78/0x98 Jan 17 23:31:58 franklin72 kernel: [<c016656e>] copy_strings+0x169/0x173 Jan 17 23:31:58 franklin72 kernel: [<c0166623>] search_binary_handler+0x84/0x19c Jan 17 23:31:58 franklin72 kernel: [<c0167905>] do_execve+0x13b/0x1a4 Jan 17 23:31:58 franklin72 kernel: [<c01026b8>] sys_execve+0x2f/0x7b Jan 17 23:31:58 franklin72 kernel: [<c0103d0e>] sysenter_past_esp+0x5f/0x85 Jan 17 23:31:58 franklin72 kernel: [<c02e0000>] __down_interruptible+0xba/0x10c Jan 17 23:31:58 franklin72 kernel: ======================= Jan 17 23:31:58 franklin72 kernel: Mem-info: Jan 17 23:31:58 franklin72 kernel: DMA per-cpu: Jan 17 23:31:58 franklin72 kernel: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Jan 17 23:31:58 franklin72 kernel: CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Jan 17 23:31:58 franklin72 kernel: CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Jan 17 23:31:58 franklin72 kernel: CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Jan 17 23:31:58 franklin72 kernel: CPU 4: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Jan 17 23:31:58 franklin72 kernel: CPU 5: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Jan 17 23:31:58 franklin72 kernel: CPU 6: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Jan 17 23:31:58 franklin72 kernel: CPU 7: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Jan 17 23:31:58 franklin72 kernel: Normal per-cpu: Jan 17 23:31:58 franklin72 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 26 Cold: hi: 62, btch: 15 usd: 49 Jan 17 23:31:58 franklin72 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 165 Cold: hi: 62, btch: 15 usd: 53 Jan 17 23:31:58 franklin72 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 28 Cold: hi: 62, btch: 15 usd: 4 Jan 17 23:31:58 franklin72 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 174 Cold: hi: 62, btch: 15 usd: 10 Jan 17 23:31:58 franklin72 kernel: CPU 4: Hot: hi: 186, btch: 31 usd: 30 Cold: hi: 62, btch: 15 usd: 9 Jan 17 23:31:58 franklin72 kernel: CPU 5: Hot: hi: 186, btch: 31 usd: 161 Cold: hi: 62, btch: 15 usd: 7 Jan 17 23:31:58 franklin72 kernel: CPU 6: Hot: hi: 186, btch: 31 usd: 12 Cold: hi: 62, btch: 15 usd: 12 Jan 17 23:31:58 franklin72 kernel: CPU 7: Hot: hi: 186, btch: 31 usd: 178 Cold: hi: 62, btch: 15 usd: 3 Jan 17 23:31:58 franklin72 kernel: HighMem per-cpu: Jan 17 23:31:58 franklin72 kernel: CPU 0: Hot: hi: 186, btch: 31 usd: 41 Cold: hi: 62, btch: 15 usd: 8 Jan 17 23:31:58 franklin72 kernel: CPU 1: Hot: hi: 186, btch: 31 usd: 182 Cold: hi: 62, btch: 15 usd: 10 Jan 17 23:31:58 franklin72 kernel: CPU 2: Hot: hi: 186, btch: 31 usd: 17 Cold: hi: 62, btch: 15 usd: 7 Jan 17 23:31:58 franklin72 kernel: CPU 3: Hot: hi: 186, btch: 31 usd: 156 Cold: hi: 62, btch: 15 usd: 4 Jan 17 23:31:58 franklin72 kernel: CPU 4: Hot: hi: 186, btch: 31 usd: 19 Cold: hi: 62, btch: 15 usd: 1 Jan 17 23:31:58 franklin72 kernel: CPU 5: Hot: hi: 186, btch: 31 usd: 165 Cold: hi: 62, btch: 15 usd: 13 Jan 17 23:31:58 franklin72 kernel: CPU 6: Hot: hi: 186, btch: 31 usd: 2 Cold: hi: 62, btch: 15 usd: 0 Jan 17 23:31:58 franklin72 kernel: CPU 7: Hot: hi: 186, btch: 31 usd: 182 Cold: hi: 62, btch: 15 usd: 3 Jan 17 23:31:58 franklin72 kernel: Active:490332 inactive:764 dirty:0 writeback:0 unstable:0 Jan 17 23:31:58 franklin72 kernel: free:3472003 slab:2279 mapped:858 pagetables:1152 bounce:0 Jan 17 23:31:58 franklin72 kernel: DMA free:3560kB min:68kB low:84kB high:100kB active:4kB inactive:0kB present:16256kB pages_scanned:21 all_unreclaimable? yes Jan 17 23:31:58 franklin72 kernel: lowmem_reserve[]: 0 873 17002 17002 Jan 17 23:31:58 franklin72 kernel: Normal free:3688kB min:3744kB low:4680kB high:5616kB active:92kB inactive:0kB present:894080kB pages_scanned:224 all_unreclaimable? yes Jan 17 23:31:58 franklin72 kernel: lowmem_reserve[]: 0 0 129032 129032 Jan 17 23:31:58 franklin72 kernel: HighMem free:13880764kB min:512kB low:17820kB high:35128kB active:1961232kB inactive:3064kB present:16516096kB pages_scanned:0 all_unreclaimable? no Jan 17 23:31:58 franklin72 kernel: lowmem_reserve[]: 0 0 0 0 Jan 17 23:31:58 franklin72 kernel: DMA: 2*4kB 2*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 3560kB Jan 17 23:31:58 franklin72 kernel: Normal: 1*4kB 6*8kB 1*16kB 0*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 0*4096kB = 4100kB Jan 17 23:31:58 franklin72 kernel: HighMem: 641*4kB 375*8kB 197*16kB 77*32kB 68*64kB 55*128kB 36*256kB 23*512kB 23*1024kB 9*2048kB 3368*4096kB = 13880876kB Jan 17 23:31:58 franklin72 kernel: Swap cache: add 0, delete 0, find 0/0, race 0+0 Jan 17 23:31:58 franklin72 kernel: Free swap = 15623204kB Jan 17 23:31:58 franklin72 kernel: Total swap = 15623204kB Jan 17 23:31:58 franklin72 kernel: Free swap: 15623204kB Jan 17 23:31:58 franklin72 kernel: 4390911 pages of RAM Jan 17 23:31:58 franklin72 kernel: 4161535 pages of HIGHMEM Jan 17 23:31:58 franklin72 kernel: 232469 reserved pages Jan 17 23:31:58 franklin72 kernel: 4302 pages shared Jan 17 23:31:58 franklin72 kernel: 0 pages swap cached Jan 17 23:31:58 franklin72 kernel: 0 pages dirty Jan 17 23:31:58 franklin72 kernel: 0 pages writeback Jan 17 23:31:58 franklin72 kernel: 858 pages mapped Jan 17 23:31:58 franklin72 kernel: 2281 pages slab Jan 17 23:31:58 franklin72 kernel: 1138 pages pagetables Jan 17 23:31:58 franklin72 kernel: Out of memory: kill process 3177 (bash) score 15352 or a child Jan 17 23:31:58 franklin72 kernel: Killed process 3286 (memtest) At this time no program run except some standard services (sshd, ntpd, syslogd ...) and the test script. Kind regards Matthias -- 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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