Hi all,
I have linux 2.4.25 on a mips processor. Other than my application, the 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 quite frequents. 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
and then
VM: killing process
I have read that the application can be killed if the kernel is not able to service the paging request or oom-killer can also kill the process. How can I confirm that one of these is happening? I want to identify the root cause of the application crash before experimenting like increasing the swap spaceor even disabling the oom-killer (i don't know if that would be a good idea though). Any suggestions
Thanks
Mudeem
