lkml.org 
[lkml]   [2007]   [Nov]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: OOM killer problem - how to read the kernel log?
    From
    Date
    "Tobias Brox" <tobixen@gmail.com> writes:

    > We have a database server which we've had some problems with, we've
    > had some serious crashes (particularly during postgres vacuuming)
    > which couldn't be fixed without hardware reboot. We assumed that the
    > problem would go away by itself after upgrading the server to a new
    > box with 32G of RAM ... but, alas, one of the first days in operation
    > it first killed lots of postgres children during the evening, and
    > finally it crashed and required hardware reboot. The box is certainly
    > not out of memory, but after reading some posts here, I've understood
    > that memory management is a complex issue.
    >
    > We're running 32 bits linux, maybe it would help to upgrade to 64 bits?

    Big-time. There are a lot of "artificial" internal kernel memory
    limits in the 32-bit architecture, so you can run up against those
    (triggering the OOM killer) even if you have plenty of application
    memory.

    32GB in the box actually might be counter-productive unless you're
    running 64-bit, because just tracking that much memory will consume
    precious low kernel RAM.

    -Doug
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-11-09 23:33    [W:0.027 / U:0.272 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site