tim truman wrote: > Please help me understand why oom-killer was invoked? You already know that the reason is that your system was out of memory. Why even ask. The OOM killer is a terrible thing. I have ranted about it often. Turning it off is the best way to avoid it. I have previously ranted about this in some detail here: http://lists.debian.org/debian-user/2007/08/msg00022.html And more recently with a little more rationale here: http://lists.debian.org/debian-user/2008/04/msg02554.html > From the SAR logs we can see that there is lots of memory in use by the > system cache, but free is low. How can we ensure there is more memory > available in free to avoid triggering oom-killer? The easiest solution is to add swap space. That will increase your virtual memory. Then you won't run out of memory and will avoid the out of memory killer. > total used free shared buffers cached > Mem: 8115 7968 146 0 23 5575 > -/+ buffers/cache: 2369 5745 > Swap: 972 127 845 That is a very small amount of memory. I wouldn't have guessed that a system could run with that small of memory these days. Bob
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