rsync halted froze Out of memory: kill process 7559 (rsync) score 635 or a child Killed process 7559 (rsync)

Out of memory: kill process 7559 (rsync) score 635 or a child
Killed process 7559 (rsync)

I was surprised to see this in my dmesg whenmy rsync backup suddenly stalled/stopped.

This system has 3 gigs of RAM and lots of free memory so I don't understand what is happening.

rsync invoked oom-killer: gfp_mask=0x200d2, order=0, oomkilladj=0
Pid: 7600, comm: rsync Not tainted 2.6.24.2 #83
[] oom_kill_process+0x10e/0x120
[] out_of_memory+0xbb/0x110
[] __alloc_pages+0x2bb/0x360
[] __grab_cache_page+0x7b/0xc0
[] simple_commit_write+0x59/0x70
[] simple_write_begin+0x34/0x80
[] generic_perform_write+0xb4/0x1a0
[] generic_file_buffered_write+0x84/0x150
[] __generic_file_aio_write_nolock+0x276/0x570
[] do_sock_read+0x90/0xa0
[] sock_aio_read+0x78/0x90
[] generic_file_aio_write+0x64/0xe0
[] do_sync_write+0xbd/0x110
[] autoremove_wake_function+0x0/0x50
[] vfs_write+0x91/0x150
[] sys_write+0x41/0x70
[] syscall_call+0x7/0xb
=======================
Mem-info:
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
Normal per-cpu:
CPU 0: Hot: hi: 186, btch: 31 usd: 63 Cold: hi: 62, btch: 15 usd: 21
CPU 1: Hot: hi: 186, btch: 31 usd: 59 Cold: hi: 62, btch: 15 usd: 2
CPU 2: Hot: hi: 186, btch: 31 usd: 37 Cold: hi: 62, btch: 15 usd: 9
CPU 3: Hot: hi: 186, btch: 31 usd: 37 Cold: hi: 62, btch: 15 usd: 0
HighMem per-cpu:
CPU 0: Hot: hi: 186, btch: 31 usd: 63 Cold: hi: 62, btch: 15 usd: 8
CPU 1: Hot: hi: 186, btch: 31 usd: 11 Cold: hi: 62, btch: 15 usd: 0
CPU 2: Hot: hi: 186, btch: 31 usd: 55 Cold: hi: 62, btch: 15 usd: 0
CPU 3: Hot: hi: 186, btch: 31 usd: 186 Cold: hi: 62, btch: 15 usd: 12
Active:337341 inactive:332842 dirty:0 writeback:0 unstable:0
free:28044 slab:6711 mapped:48 pagetables:104 bounce:0
DMA free:6416kB min:68kB low:84kB high:100kB active:0kB inactive:0kB present:16256kB pages_scanned:0 all_unreclaimable? yes
lowmem_reserve[]: 0 873 4048 4048
Normal free:105332kB min:3744kB low:4680kB high:5616kB active:361796kB inactive:361852kB present:894080kB pages_scanned:1084885 all_unreclaimable? yes
lowmem_reserve[]: 0 0 25400 25400
HighMem free:428kB min:512kB low:3916kB high:7324kB active:987568kB inactive:969516kB present:3251200kB pages_scanned:2938373 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0 0
DMA: 6*4kB 7*8kB 8*16kB 8*32kB 7*64kB 5*128kB 3*256kB 2*512kB 3*1024kB 0*2048kB 0*4096kB = 6416kB
Normal: 14*4kB 18*8kB 7*16kB 2*32kB 1*64kB 2*128kB 2*256kB 1*512kB 3*1024kB 3*2048kB 23*4096kB = 105144kB
HighMem: 0*4kB 1*8kB 1*16kB 1*32kB 1*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 376kB
Swap cache: add 0, delete 0, find 0/0, race 0+0
Free swap = 0kB
Total swap = 0kB
Free swap: 0kB
1048576 pages of RAM
819200 pages of HIGHMEM
339234 reserved pages
10551 pages shared
0 pages swap cached
0 pages dirty
0 pages writeback
48 pages mapped
6711 pages slab
104 pages pagetables
Out of memory: kill process 7559 (rsync) score 955 or a child
Killed process 7600 (rsync)
rsync invoked oom-killer: gfp_mask=0x1280d2, order=0, oomkilladj=0
Pid: 7559, comm: rsync Not tainted 2.6.24.2 #83
[] oom_kill_process+0x10e/0x120
[] out_of_memory+0xbb/0x110
[] __alloc_pages+0x2bb/0x360
[] __do_fault+0x147/0x360
[] do_anonymous_page+0x3d/0x110
[] handle_mm_fault+0x10f/0x2c0
[] do_page_fault+0x12a/0x630
[] vfs_read+0x132/0x150
[] do_page_fault+0x0/0x630
[] error_code+0x72/0x78
=======================
Mem-info:
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
Normal per-cpu:
CPU 0: Hot: hi: 186, btch: 31 usd: 63 Cold: hi: 62, btch: 15 usd: 21
CPU 1: Hot: hi: 186, btch: 31 usd: 114 Cold: hi: 62, btch: 15 usd: 2
CPU 2: Hot: hi: 186, btch: 31 usd: 28 Cold: hi: 62, btch: 15 usd: 9
CPU 3: Hot: hi: 186, btch: 31 usd: 37 Cold: hi: 62, btch: 15 usd: 0
HighMem per-cpu:
CPU 0: Hot: hi: 186, btch: 31 usd: 63 Cold: hi: 62, btch: 15 usd: 8
CPU 1: Hot: hi: 186, btch: 31 usd: 11 Cold: hi: 62, btch: 15 usd: 0
CPU 2: Hot: hi: 186, btch: 31 usd: 138 Cold: hi: 62, btch: 15 usd: 0
CPU 3: Hot: hi: 186, btch: 31 usd: 186 Cold: hi: 62, btch: 15 usd: 12
Active:337376 inactive:332787 dirty:0 writeback:0 unstable:0
free:28044 slab:6711 mapped:48 pagetables:104 bounce:0
DMA free:6416kB min:68kB low:84kB high:100kB active:0kB inactive:0kB present:16256kB pages_scanned:0 all_unreclaimable? yes
lowmem_reserve[]: 0 873 4048 4048
Normal free:105332kB min:3744kB low:4680kB high:5616kB active:362104kB inactive:361596kB present:894080kB pages_scanned:1085435 all_unreclaimable? yes
lowmem_reserve[]: 0 0 25400 25400
HighMem free:428kB min:512kB low:3916kB high:7324kB active:987400kB inactive:969552kB present:3251200kB pages_scanned:2939498 all_unreclaimable? yes
lowmem_reserve[]: 0 0 0 0
DMA: 6*4kB 7*8kB 8*16kB 8*32kB 7*64kB 5*128kB 3*256kB 2*512kB 3*1024kB 0*2048kB 0*4096kB = 6416kB
Normal: 14*4kB 18*8kB 7*16kB 2*32kB 1*64kB 2*128kB 2*256kB 1*512kB 3*1024kB 3*2048kB 23*4096kB = 105144kB
HighMem: 0*4kB 1*8kB 1*16kB 1*32kB 1*64kB 0*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 376kB
Swap cache: add 0, delete 0, find 0/0, race 0+0
Free swap = 0kB
Total swap = 0kB
Free swap: 0kB
1048576 pages of RAM
819200 pages of HIGHMEM
339234 reserved pages
903 pages shared
0 pages swap cached
0 pages dirty
0 pages writeback
48 pages mapped
6711 pages slab
104 pages pagetables
Out of memory: kill process 7559 (rsync) score 635 or a child
Killed process 7559 (rsync)


Tags:

rsync, halted, froze, dmesg, stalled, gigs, ram, invoked, oom, gfp_mask, oomkilladj, pid, comm, tainted, oom_kill_process, aab, out_of_memory, xbb, cb, __alloc_pages, bb, __grab_cache_page, xc, simple_commit_write, simple_write_begin, generic_perform_write, xb, generic_file_buffered_write, __generic_file_aio_write_nolock, ef, do_sock_read, xa, sock_aio_read, ca, generic_file_aio_write, xe, do_sync_write, xbd, aa, autoremove_wake_function, vfs_write, sys_write, syscall_call, mem, info, dma, cpu, btch, usd, highmem, active, inactive, writeback, unstable, slab, mapped, pagetables, bounce, kb, min, pages_scanned, all_unreclaimable, lowmem_reserve, swap, cache, delete, reserved, cached, __do_fault, do_anonymous_page, handle_mm_fault, dea, do_page_fault, vfs_read, cc, error_code,

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