Problems with amd64 on "big" boxes in oom situations

Problems with amd64 on "big" boxes in oom situations

[Michael Renner]

Hi,

I've got a 8x dual core opteron server with 64 gb ram which reproducible 
locks up when it gets into an OOM situation. The traces for 2.6.14 and 
2.6.15-rc2 can be found at: http://666kb.com/i/10yom358azw8w.jpg , 
http://666kb.com/i/10yov42ydfdog.jpg .

Used .config: http://phpfi.com/88428

There were 1+16 (forked) processes, each starting with a base memory 
usage of 3.1 gb (maybe CoW, can't say), slowly growing while they ran, 
each utilizing a processor/core very thoroughly. Eventually the 
available memory was used up and the machine locked up shortly afterwards.

Any ideas?

-- 

best regards,
  Michael Renner - Network services

Preisvergleich Internet Services AG
Obere Donaustrasse 63/2, A-1020 Wien
Tel: +43 1 5811609 80
Fax: +43 1 5811609 55

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

Re: Problems with amd64 on "big" boxes in oom situations

[Michael Renner]

Michael Renner wrote:

http://666kb.com/i/10z1l2c61a8ld.jpg

Slightly different trace this time with existing swap space.

-- 

regards,
  Michael Renner

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>