topic OOM cause of reboot in Operating System - Linux

OOM cause of reboot

monu_1 — Thu, 23 Oct 2008 09:07:24 GMT

Hi All,

I hv got the oom error (attached in this case) which caused the rebooot the controller.

could you please suggest where is the exact problem?

is this kernel issue? i m using 2.6.10 version.

Thanks,
-mks

Re: OOM cause of reboot

Ivan Krastev — Thu, 23 Oct 2008 14:46:29 GMT

The problem is lack of memory.
This process oom-killer is from kernel and it is used to free some memory by killing processes.
See more here:
http://www.wlug.org.nz/OomKiller

http://www.win.tue.nl/~aeb/linux/lk/lk-9.html

regards,
ivan

Re: OOM cause of reboot

Ragu_3 — Fri, 24 Oct 2008 06:46:55 GMT

>> could you please suggest where is the exact problem?

Lack of RAM causes this, but RAM can be real or swap.

Now why does this happen? The issue is with the app not being able to access RAM beyond real 4 GB. It is not even able to access swap and swap out. This happens because the kernel/OS port is for x86 and not for that particular arch, maybe the x86_64/amd64 port should be installed instead.

Before you upgrade your real RAM, check for RAM errors. Then install the x86_64/amd64 port instead.

HTH.

--
Ragu