Has anyone seen this before?
I'm pretty sure I know what it is :-)
How I did it:
Select ~4,000 image files in file manager (to delete) - but with 'Show
As Thumbnail' selected - managed to kill an E6300 (Dual-Core 1.86GHz
w/2GB RAM and 2GB SWAP).
Questions:
==========
a) Is this a case of the kernel running out of physical AND virtual memory?
b) I have a SWAP file size of
"
cat /proc/swaps
Filename Type Size Used
Priority
/dev/sdb2 partition 3903784 0 -1
"
Should be ~4GB - but 'top' was only showing 2GB in-use/useable - should
I have split the 4GB into 2x 2GB SWAP partitions for GNU/Linux to
utilise it all?
c) Can anyone explain in nice laymans terms the correct use of the 'Alt
+ SysReq' and 'Alt + S' and 'Alt + U' and 'Alt + B' key sequence (I used
this to (I think) tell the machine to safely shut down).
Cheers,
Elroy.
> [ 5756.653718] passkey-agent invoked oom-killer: gfp_mask=0x201d2, order=0, oomkilladj=0
> [ 5756.653741] [<c015a915>] out_of_memory+0x175/0x1b0
> [ 5756.653759] [<c015c364>] __alloc_pages+0x2e4/0x340
> [ 5756.653770] [<c015db69>] __do_page_cache_readahead+0x109/0x250
> [ 5756.653781] [<c02ed622>] io_schedule+0x22/0x30
> [ 5756.653787] [<c02ed8cb>] __wait_on_bit_lock+0x5b/0x70
> [ 5756.653790] [<c01570d0>] sync_page+0x0/0x40
> [ 5756.653799] [<c01570b3>] __lock_page+0x73/0x80
> [ 5756.653809] [<c0159b13>] filemap_nopage+0x2c3/0x3a0
> [ 5756.653820] [<c01643ea>] __handle_mm_fault+0x14a/0xa40
> [ 5756.653825] [<c0102236>] __switch_to+0xc6/0x1f0
> [ 5756.653842] [<c02f0658>] do_page_fault+0x128/0x600
> [ 5756.653854] [<c02f0530>] do_page_fault+0x0/0x600
> [ 5756.653859] [<c02eed0c>] error_code+0x7c/0x90
> [ 5756.653872] =======================
> [ 5756.653873] Mem-info:
> [ 5756.653875] DMA per-cpu:
> [ 5756.653877] CPU 0: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> [ 5756.653880] CPU 1: Hot: hi: 0, btch: 1 usd: 0 Cold: hi: 0, btch: 1 usd: 0
> [ 5756.653882] Normal per-cpu:
> [ 5756.653884] CPU 0: Hot: hi: 186, btch: 31 usd: 38 Cold: hi: 62, btch: 15 usd: 60
> [ 5756.653887] CPU 1: Hot: hi: 186, btch: 31 usd: 59 Cold: hi: 62, btch: 15 usd: 61
> [ 5756.653888] HighMem per-cpu:
> [ 5756.653890] CPU 0: Hot: hi: 186, btch: 31 usd: 143 Cold: hi: 62, btch: 15 usd: 45
> [ 5756.653893] CPU 1: Hot: hi: 186, btch: 31 usd: 121 Cold: hi: 62, btch: 15 usd: 23
> [ 5756.653897] Active:247244 inactive:246390 dirty:0 writeback:0 unstable:0 free:12228 slab:5093 mapped:650 pagetables:2205
> [ 5756.653901] DMA free:8128kB min:68kB low:84kB high:100kB active:600kB inactive:708kB present:16256kB pages_scanned:2015 all_unreclaimable? yes
> [ 5756.653903] lowmem_reserve[]: 0 873 2015
> [ 5756.653908] Normal free:40296kB min:3744kB low:4680kB high:5616kB active:408760kB inactive:407108kB present:894080kB pages_scanned:1419965 all_unreclaimable? yes
> [ 5756.653911] lowmem_reserve[]: 0 0 9139
> [ 5756.653915] HighMem free:488kB min:512kB low:1736kB high:2960kB active:579616kB inactive:577744kB present:1169800kB pages_scanned:1908817 all_unreclaimable? yes
> [ 5756.653918] lowmem_reserve[]: 0 0 0
> [ 5756.653920] DMA: 2*4kB 49*8kB 61*16kB 29*32kB 13*64kB 5*128kB 5*256kB 0*512kB 1*1024kB 1*2048kB 0*4096kB = 8128kB
> [ 5756.653928] Normal: 32*4kB 23*8kB 13*16kB 17*32kB 91*64kB 5*128kB 2*256kB 7*512kB 14*1024kB 5*2048kB 1*4096kB = 40296kB
> [ 5756.653936] HighMem: 8*4kB 9*8kB 0*16kB 0*32kB 0*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 488kB
> [ 5756.653945] Swap cache: add 1476597, delete 1476597, find 120489/168440, race 4+39
> [ 5756.653947] Free swap = 0kB
> [ 5756.653948] Total swap = 3903784kB
> [ 5756.653950] Free swap: 0kB
> [ 5756.658573] 524128 pages of RAM
> [ 5756.658575] 294752 pages of HIGHMEM
> [ 5756.658576] 5910 reserved pages
> [ 5756.658577] 3523 pages shared
> [ 5756.658579] 0 pages swap cached
> [ 5756.658580] 0 pages dirty
> [ 5756.658581] 0 pages writeback
> [ 5756.658582] 650 pages mapped
> [ 5756.658584] 5093 pages slab
> [ 5756.658585] 2205 pages pagetables
