Linux Out-of-memory Killer

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225 views

LAMP/Postfix on Debian. Rare OOM-ing - tools to track down?

I'm getting seemingly random server hangs (specifically OOM-ing) and running out of skill trying to track this down. I'm using a Debian 5 VS with Apache/mySQL/PHP. I've got Postfix running using ...
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1answer
260 views

high load and OOM-killer on domUs while pvmove

Situation xen 4.0.1 dom0 (debian squeeze) domUs all with LVs as disks: disk = [ 'phy:/dev/vg-00/domu-swap,xvda1,w', 'phy:/dev/vg-00/domu-disk,xvda2,w' ]) one VG (vg-00) with 2 PVs Goal Move all ...
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1answer
27 views

when is the jvm heap allocated by the OS

One of our sap systems(PI ABAP+JAVA stack) was giving performance issue. The entire 64GB configured for the machine gets hogged up(and the 8 cores as well). Every one is suspecting the java part,but i ...
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1answer
400 views

Xen 4.0.1 Dom0 draws too much memory by nothing apparent - ooms out when streched under 900 MB

Greetings, I've setup a new ubuntu 10.10 server for xen 4.0.1, though it included kernel compilation (creating PVOPS 2.6.32 kernel) and all the stuff by their guide - (generally include xen and ...
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0answers
210 views

Why can't I malloc as much memory as `free` reports as being free?

The following C program allocates slices of 10MB of memory until it is killed by the Out of Memory killer. #include <stdio.h> #include <stdlib.h> #include <string.h> #include ...
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34 views

OOM even though page cache high, swap not used, etc

Can you help me diagnose this OOM? My remarks are in-between. <4>[598175.284914] cifsd invoked oom-killer: gfp_mask=0x200da, order=0, oom_adj=0, oom_score_adj=0 Whut? GFP mask lower byte 0xa ...
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0answers
10 views

How to adjust oom_adj on linux-vserver?

How to adjust oom_adj for some process on linux-vserver? I've added cap to CAP_SYS_RESOURCE, i've try to use chcontext to xid of vserver, but... i can't adjust oom_adj values of some process. It's ...
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70 views

How do I set a negative oom_score_adj as a non-root user?

We use supervisord to start and stop processes and make sure that if a process dies that it comes back up. On each box, we have one "main" process. On one particular box, the main process uses a lot ...