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Date: Wed, 21 May 2008 09:44:47 +0200
From: Jiri Slaby <jirislaby@gmail.com>
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To: Mudeem Siddiqui <mudeem@quartics.com>
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Subject: Re: VM: killing process - How to identify the problem
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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.