OOM killer "Out of Memory: Killed process" SOLUTIONS / SUMMARY

[Cristian Silva]

Sorry, forgot to mention that we are getting the oom-killer with another
application, we are not using VMware.

The total low memory reported by the PAE and the normal kernel are the same

PAE
# free -lm
             total       used       free     shared    buffers     cached
Mem:          7994        348       7646          0         70        179
Low:           827        102        724
High:         7167        245       6922
-/+ buffers/cache:         98       7896
Swap:         4094          0       4094
#


Normal
# free -lm
             total       used       free     shared    buffers     cached
Mem:          3930        309       3621          0         17        196
Low:           859         47        811
High:         3071        261       2810
-/+ buffers/cache:         95       3835
Swap:         4094          0       4094
#

Both commands were executed just after a reboot of the system and it's
interesting to see that the used low memory in the PAE kernel is the double
of the  used low memory in a  "normal"  kernel

We already tried the parameters that Ray suggested and they didnt make any
difference.

vm.lower_zone_protection is not available in the rhel5, so we are going to
try with less memory and see what it happens.

Thanks all for the information/suggestions, this thread has been excellent.


cheers,
C.

On 8/19/07, Eric Sisler <esisler at westminster.lib.co.us> wrote:
>
>
> Does the PAE kernel report a different amount of total low memory than
> the regular kernel?  If not, are there BIOS or boot time options that
> might help?  From a post to the RHEL4 list by Tom Sightler:
>
> How close to 8Gb are you with virtual machines?  Perhaps you really are
> running out of memory...?
>
> You might be able to get away with ~6Gb.  I'd try the
> vm.lower_zone_protection first, followed by other kernel options
> suggested by Ray (and others).
>
> -Eric
>
> --
> Eric Sisler <esisler at westminster.lib.co.us>
> Library Network Specialist
> Westminster Public Library
> Westminster, CO USA
>
>