Andrew Morton wrote: >> On Sun, 21 Jan 2007 14:27:34 -0500 (EST) Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx> wrote: >> Why does copying an 18GB on a 74GB raptor raid1 cause the kernel to invoke >> the OOM killer and kill all of my processes? > > What's that? Software raid or hardware raid? If the latter, which driver? I've hit this using local disk while testing xfs built against 2.6.20-rc4 (SMP x86_64) dmesg follows, I'm not sure if anything in this is useful after the first event as our automated tests continued on after the failure. > Please include /proc/meminfo from after the oom-killing. > > Please work out what is using all that slab memory, via /proc/slabinfo. Sorry I didnt pick this up ether. I'll try to reproduce this and gather some more detailed info for a single event. Donald ... XFS mounting filesystem sdb5 Ending clean XFS mount for filesystem: sdb5 XFS mounting filesystem sdb5 Ending clean XFS mount for filesystem: sdb5 hald invoked oom-killer: gfp_mask=0x200d2, order=0, oomkilladj=0 Call Trace: [<ffffffff80257367>] out_of_memory+0x70/0x25d [<ffffffff80258f6b>] __alloc_pages+0x22c/0x2b5 [<ffffffff8026d889>] alloc_page_vma+0x71/0x76 [<ffffffff8026937b>] read_swap_cache_async+0x45/0xd8 [<ffffffff8025f2e0>] swapin_readahead+0x60/0xd3 [<ffffffff80260ece>] __handle_mm_fault+0x703/0x9d8 [<ffffffff80532bf7>] do_page_fault+0x42b/0x7b3 [<ffffffff80278adf>] do_readv_writev+0x176/0x18b [<ffffffff8052efde>] thread_return+0x0/0xed [<ffffffff8034d7f5>] __const_udelay+0x2c/0x2d [<ffffffff803f4e0b>] scsi_done+0x0/0x17 [<ffffffff8053109d>] error_exit+0x0/0x84 Mem-info: Node 0 DMA per-cpu: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Node 0 DMA32 per-cpu: CPU 0: Hot: hi: 186, btch: 31 usd: 31 Cold: hi: 62, btch: 15 usd: 53 CPU 1: Hot: hi: 186, btch: 31 usd: 2 Cold: hi: 62, btch: 15 usd: 60 CPU 2: Hot: hi: 186, btch: 31 usd: 20 Cold: hi: 62, btch: 15 usd: 47 CPU 3: Hot: hi: 186, btch: 31 usd: 25 Cold: hi: 62, btch: 15 usd: 56 Active:76 inactive:495856 dirty:0 writeback:0 unstable:0 free:3680 slab:9119 mapped:32 pagetables:637 Node 0 DMA free:8036kB min:24kB low:28kB high:36kB active:0kB inactive:1856kB present:9376kB pages_scanned:3296 all_unreclaimable? yes lowmem_reserve[]: 0 2003 2003 Node 0 DMA32 free:6684kB min:5712kB low:7140kB high:8568kB active:304kB inactive:1981624kB present:2052068kB pages_scanned:4343329 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Node 0 DMA: 1*4kB 0*8kB 0*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 1*4096kB = 8036kB Node 0 DMA32: 273*4kB 29*8kB 1*16kB 1*32kB 1*64kB 1*128kB 2*256kB 1*512kB 0*1024kB 0*2048kB 1*4096kB = 6684kB Swap cache: add 741048, delete 244661, find 84826/143198, race 680+239 Free swap = 1088524kB Total swap = 3140668kB Free swap: 1088524kB 524224 pages of RAM 9619 reserved pages 259 pages shared 496388 pages swap cached No available memory (MPOL_BIND): kill process 3492 (hald) score 0 or a child Killed process 3626 (hald-addon-acpi) top invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0 Call Trace: [<ffffffff80257367>] out_of_memory+0x70/0x25d [<ffffffff80258f6b>] __alloc_pages+0x22c/0x2b5 [<ffffffff8026e6a3>] alloc_pages_current+0x74/0x79 [<ffffffff802548c8>] __page_cache_alloc+0xb/0xe [<ffffffff8025a65f>] __do_page_cache_readahead+0xa1/0x217 [<ffffffff8052f776>] io_schedule+0x28/0x33 [<ffffffff8052f9e7>] __wait_on_bit_lock+0x5b/0x66 [<ffffffff802546de>] __lock_page+0x72/0x78 [<ffffffff8025ab22>] do_page_cache_readahead+0x4e/0x5a [<ffffffff80256714>] filemap_nopage+0x140/0x30c [<ffffffff802609c6>] __handle_mm_fault+0x1fb/0x9d8 [<ffffffff80532bf7>] do_page_fault+0x42b/0x7b3 [<ffffffff80228273>] __wake_up+0x43/0x50 [<ffffffff80380bd5>] tty_ldisc_deref+0x71/0x76 [<ffffffff8053109d>] error_exit+0x0/0x84 Mem-info: Node 0 DMA per-cpu: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Node 0 DMA32 per-cpu: CPU 0: Hot: hi: 186, btch: 31 usd: 31 Cold: hi: 62, btch: 15 usd: 53 CPU 1: Hot: hi: 186, btch: 31 usd: 2 Cold: hi: 62, btch: 15 usd: 60 CPU 2: Hot: hi: 186, btch: 31 usd: 1 Cold: hi: 62, btch: 15 usd: 10 CPU 3: Hot: hi: 186, btch: 31 usd: 25 Cold: hi: 62, btch: 15 usd: 26 Active:90 inactive:496233 dirty:0 writeback:0 unstable:0 free:3485 slab:9119 mapped:32 pagetables:637 Node 0 DMA free:8036kB min:24kB low:28kB high:36kB active:0kB inactive:1856kB present:9376kB pages_scanned:3328 all_unreclaimable? yes lowmem_reserve[]: 0 2003 2003 Node 0 DMA32 free:5904kB min:5712kB low:7140kB high:8568kB active:360kB inactive:1983092kB present:2052068kB pages_scanned:4587649 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Node 0 DMA: 1*4kB 0*8kB 0*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 1*4096kB = 8036kB Node 0 DMA32: 78*4kB 29*8kB 1*16kB 1*32kB 1*64kB 1*128kB 2*256kB 1*512kB 0*1024kB 0*2048kB 1*4096kB = 5904kB Swap cache: add 741067, delete 244673, find 84826/143210, race 680+239 Free swap = 1088572kB Total swap = 3140668kB Free swap: 1088572kB 524224 pages of RAM 9619 reserved pages 290 pages shared 496396 pages swap cached No available memory (MPOL_BIND): kill process 7914 (top) score 0 or a child Killed process 7914 (top) nscd invoked oom-killer: gfp_mask=0x200d2, order=0, oomkilladj=0 Call Trace: [<ffffffff80257367>] out_of_memory+0x70/0x25d [<ffffffff80258f6b>] __alloc_pages+0x22c/0x2b5 [<ffffffff8026d889>] alloc_page_vma+0x71/0x76 [<ffffffff8026937b>] read_swap_cache_async+0x45/0xd8 [<ffffffff80260ede>] __handle_mm_fault+0x713/0x9d8 [<ffffffff80532bf7>] do_page_fault+0x42b/0x7b3 [<ffffffff80238e16>] try_to_del_timer_sync+0x51/0x5a [<ffffffff80238e2b>] del_timer_sync+0xc/0x16 [<ffffffff8052f939>] schedule_timeout+0x92/0xad [<ffffffff80238a40>] process_timeout+0x0/0xb [<ffffffff8029e563>] sys_epoll_wait+0x3e0/0x421 [<ffffffff8022a96b>] default_wake_function+0x0/0xf [<ffffffff8053109d>] error_exit+0x0/0x84 Mem-info: Node 0 DMA per-cpu: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Node 0 DMA32 per-cpu: CPU 0: Hot: hi: 186, btch: 31 usd: 30 Cold: hi: 62, btch: 15 usd: 53 CPU 1: Hot: hi: 186, btch: 31 usd: 2 Cold: hi: 62, btch: 15 usd: 60 CPU 2: Hot: hi: 186, btch: 31 usd: 0 Cold: hi: 62, btch: 15 usd: 14 CPU 3: Hot: hi: 186, btch: 31 usd: 25 Cold: hi: 62, btch: 15 usd: 26 Active:91 inactive:496325 dirty:0 writeback:0 unstable:0 free:3425 slab:9119 mapped:32 pagetables:637 Node 0 DMA free:8036kB min:24kB low:28kB high:36kB active:0kB inactive:1856kB present:9376kB pages_scanned:3328 all_unreclaimable? yes lowmem_reserve[]: 0 2003 2003 Node 0 DMA32 free:5664kB min:5712kB low:7140kB high:8568kB active:364kB inactive:1983372kB present:2052068kB pages_scanned:4610273 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Node 0 DMA: 1*4kB 0*8kB 0*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 1*4096kB = 8036kB Node 0 DMA32: 18*4kB 29*8kB 1*16kB 1*32kB 1*64kB 1*128kB 2*256kB 1*512kB 0*1024kB 0*2048kB 1*4096kB = 5664kB Swap cache: add 741069, delete 244674, find 84826/143212, race 680+239 Free swap = 1088576kB Total swap = 3140668kB Free swap: 1088576kB 524224 pages of RAM 9619 reserved pages 293 pages shared 496396 pages swap cached No available memory (MPOL_BIND): kill process 4166 (nscd) score 0 or a child Killed process 4166 (nscd) xfs_repair invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0 Call Trace: [<ffffffff80257367>] out_of_memory+0x70/0x25d [<ffffffff80258f6b>] __alloc_pages+0x22c/0x2b5 [<ffffffff8026e6a3>] alloc_pages_current+0x74/0x79 [<ffffffff802548c8>] __page_cache_alloc+0xb/0xe [<ffffffff8025a65f>] __do_page_cache_readahead+0xa1/0x217 [<ffffffff8025ab22>] do_page_cache_readahead+0x4e/0x5a [<ffffffff80256714>] filemap_nopage+0x140/0x30c [<ffffffff802609c6>] __handle_mm_fault+0x1fb/0x9d8 [<ffffffff80532bf7>] do_page_fault+0x42b/0x7b3 [<ffffffff802426eb>] autoremove_wake_function+0x0/0x2e [<ffffffff80244ea4>] up_write+0x9/0xb [<ffffffff8026602d>] sys_mprotect+0x645/0x764 [<ffffffff8053109d>] error_exit+0x0/0x84 Mem-info: Node 0 DMA per-cpu: CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 2: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 CPU 3: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0 Node 0 DMA32 per-cpu: CPU 0: Hot: hi: 186, btch: 31 usd: 30 Cold: hi: 62, btch: 15 usd: 53 CPU 1: Hot: hi: 186, btch: 31 usd: 2 Cold: hi: 62, btch: 15 usd: 60 CPU 2: Hot: hi: 186, btch: 31 usd: 30 Cold: hi: 62, btch: 15 usd: 14 CPU 3: Hot: hi: 186, btch: 31 usd: 25 Cold: hi: 62, btch: 15 usd: 26 Active:91 inactive:496247 dirty:0 writeback:0 unstable:0 free:3394 slab:9119 mapped:32 pagetables:637 Node 0 DMA free:8036kB min:24kB low:28kB high:36kB active:0kB inactive:1856kB present:9376kB pages_scanned:3328 all_unreclaimable? yes lowmem_reserve[]: 0 2003 2003 Node 0 DMA32 free:5540kB min:5712kB low:7140kB high:8568kB active:364kB inactive:1983300kB present:2052068kB pages_scanned:4631841 all_unreclaimable? yes lowmem_reserve[]: 0 0 0 Node 0 DMA: 1*4kB 0*8kB 0*16kB 1*32kB 1*64kB 0*128kB 1*256kB 1*512kB 1*1024kB 1*2048kB 1*4096kB = 8036kB Node 0 DMA32: 1*4kB 22*8kB 1*16kB 1*32kB 1*64kB 1*128kB 2*256kB 1*512kB 0*1024kB 0*2048kB 1*4096kB = 5540kB Swap cache: add 741070, delete 244674, find 84826/143212, race 680+239 Free swap = 1088576kB Total swap = 3140668kB Free swap: 1088576kB 524224 pages of RAM 9619 reserved pages 293 pages shared 496397 pages swap cached No available memory (MPOL_BIND): kill process 17869 (xfs_repair) score 0 or a child Killed process 17869 (xfs_repair) klogd invoked oom-killer: gfp_mask=0x200d2, order=0, oomkilladj=0 Call Trace: [<ffffffff80257367>] out_of_memory+0x70/0x25d [<ffffffff80258f6b>] __alloc_pages+0x22c/0x2b5 [<ffffffff8025afc2>] __pagevec_lru_add_active+0xce/0xde [<ffffffff8026d889>] alloc_page_vma+0x71/0x76 [<ffffffff8026937b>] read_swap_cache_async+0x45/0xd8 [<ffffffff80260ede>] __handle_mm_fault+0x713/0x9d8 [<ffffffff80532bf7>] do_page_fault+0x42b/0x7b3 [<ffffffff802426eb>] autoremove_wake_function+0x0/0x2e [<ffffffff8053109d>] error_exit+0x0/0x84 ... - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
