Wednesday, 21 August 2013

Linux reboot out of memory

Linux reboot out of memory

I have a server with Intel(R) Atom(TM) CPU D525 and 1 GB memory. I found
the server would shut down and start automatically about every 7 days. I
check the memory usage, I found when the memory usage reached 90% the
kernel reboots. But I checked out the kernel log in /var/log/messages
file, I didn't find anything about kernel shutting down, but I found only
message about the kernel start. I check the file
/proc/sys/vm/min_free_kbytes, the value is "3765".



I guess when the available memory is very low, but don't get to the value
kernel recover, so the kernel can't do anything and then reboots.
Can you give me some insight?

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