Re: VM: killing process - How to identify the problem

From: Jiri Slaby
Date: Wed May 21 2008 - 03:45:36 EST

On 05/20/2008 11:10 PM, Mudeem Siddiqui wrote:
Hi all,

I have linux 2.4.25 on a mips processor. Other than my application, the

Just curious, is is a typo?

other processes that are running on the system are udhcpd, dhcpd,
mini_dns etc. The applicaiton is quite memory intensive, it has
allocated 5 MB of a buffer which acts as a queue and the applicaiton
queues and de-queues packets in the queue at frequents intervals. The
memory for this buffer is allocated just once when the application
starts at the time of boot. So I would assume that there would be quite
a lot of paging going on.

The issue is that randomly the application gets killed, there is no
segmnetation fault or anything and if I look at /var/log/messages I see
quite a lot of

__alloc_pages: 0-order allocation failed __alloc_pages: 0-order allocation failed __alloc_pages: 0-order allocation failed

and then

VM: killing process

Caused by out of memory, a page fault couldn't be serviced due to memory exhaustion. See arch/mips/mm/fault.c.
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