[Bug 13144] Hoary 2.6.10 oom-killer

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Ubuntu | linux


vali.dragnuta at asf.ro changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1




------- Additional Comments From vali.dragnuta at asf.ro  2005-10-21 09:56 UTC -------
I confirm this bug on 2.6.12 / ubuntu breezy
2.6.12-9-686-smp #1 SMP Mon Oct 10 13:36:57 BST 2005 i686 GNU/Linux

Machine : p4,2600, 512 megs ov ram, 1gig  swap;
memory status :


free
             total       used       free     shared    buffers     cached
Mem:        508192     497916      10276          0       3436      79704
-/+ buffers/cache:     414776      93416
Swap:      1000432     240276     760156


Problem :
Some processes get randomly killed by oom-killer, EVEN IF THERE IS PLENTY of
swap available.
Example :



[4448628.925000] oom-killer: gfp_mask=0xd0
[4448628.925000] DMA per-cpu:
[4448628.925000] cpu 0 hot: low 2, high 6, batch 1
[4448628.925000] cpu 0 cold: low 0, high 2, batch 1
[4448628.925000] cpu 1 hot: low 2, high 6, batch 1
[4448628.925000] cpu 1 cold: low 0, high 2, batch 1
[4448628.925000] Normal per-cpu:
[4448628.925000] cpu 0 hot: low 62, high 186, batch 31
[4448628.925000] cpu 0 cold: low 0, high 62, batch 31
[4448628.925000] cpu 1 hot: low 62, high 186, batch 31
[4448628.925000] cpu 1 cold: low 0, high 62, batch 31
[4448628.925000] HighMem per-cpu: empty
[4448628.925000]
[4448628.925000] Free pages:        6200kB (0kB HighMem)
[4448628.925000] Active:83939 inactive:18619 dirty:0 writeback:0 unstable:0 free
:1550 slab:5898 mapped:101073 pagetables:697
[4448628.925000] DMA free:2036kB min:88kB low:108kB high:132kB active:11148kB in
active:0kB present:16384kB pages_scanned:11463 all_unreclaimable? yes
[4448628.925000] lowmem_reserve[]: 0 487 487
[4448628.925000] Normal free:4164kB min:2780kB low:3472kB high:4168kB active:324
608kB inactive:74476kB present:499648kB pages_scanned:0 all_unreclaimable? no
[4448628.925000] lowmem_reserve[]: 0 0 0
[4448628.925000] HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inac
tive:0kB present:0kB pages_scanned:0 all_unreclaimable? no
[4448628.925000] lowmem_reserve[]: 0 0 0
[4448628.925000] DMA: 1*4kB 0*8kB 1*16kB 1*32kB 1*64kB 1*128kB 1*256kB 1*512kB 1
*1024kB 0*2048kB 0*4096kB = 2036kB
[4448628.925000] Normal: 283*4kB 41*8kB 1*16kB 2*32kB 1*64kB 0*128kB 0*256kB 1*5
12kB 0*1024kB 1*2048kB 0*4096kB = 4164kB
[4448628.925000] HighMem: empty
[4448628.925000] Swap cache: add 105158, delete 91577, find 25295/31853, race 0+ 269
[4448628.925000] Free swap  = 791868kB
[4448628.925000] Total swap = 1000432kB
[4448628.925000] Out of Memory: Killed process 12961 (jbuilder).


After the failed startup of jbuilder (killed by OOM) the second try, just
seconds after that succeeds.
This also happens with open office base whick has the bad habit of using a lot
of memory. 

I never had this problems on hoary and I always used the same set of applications.
May I say, oom-killer is just sh*t, it brings NOTHING useful. I would greatly
preffer to let a certain application crash in it's
own way when it will get a memory allocation error instead of being suddenly
killed by that damned oomkiller without a trace.

Please someone raise the severity of this bug, I think it's pretty severe to
have sometimes critical applications/processes disappearing.


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