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Server Crashed for no reason

Discussion in 'General Discussion' started by niatech, Mar 30, 2006.

  1. niatech

    niatech Well-Known Member

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    Hello all,

    Just wondering if someone could help me out. Sporatically over the last 6 months one of our servers crashed with the last message in /var/log/messages "unable to handle kernel NULL pointer...".

    This just happened again 2 days ago and then again today (in the past they have never been this close). Except this time, there are no messages like the one above in /var/log/messages.

    Has anyone experienced this and have an idea how I could protect against it?

    Symptoms
    ------------
    - Server is pingable but doesn't respond (http, ftp, imap, ssh)

    Environment
    --------------
    - Latest CPanel/WHM RELEASE
    - Fedora Core 2 (updated from fedoralegacy.org)

    Thanks!!
     
  2. chirpy

    chirpy Well-Known Member

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    Difficult to say. are you running the latest FedoraLegacy FC2 kernel? Just checked the site and it looks like the latest is currently kernel-2.6.10-2.3.legacy_FC2 if you're running an older one you might try upgrading. IMX, the most common reason for unexpected crashes or hangs (as in your case) is either faulty RAM or a disk on its way out. It would be a good idea to have both tested offline for errors.
     
  3. niatech

    niatech Well-Known Member

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    Hmm,

    I'm trying to upgrade the kernel right now on my backup box and i'm receiving "memory alloc (12 bytes) returned NULL" from yum and rpm -ivh... anyone ever see that?
     
  4. niatech

    niatech Well-Known Member

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    ^^^ solved this issue by rebooting the box, then yum ran properly.... going to test this kernel for a couple days and then will apply to the other problematic box.... will let you know how it works out..
     
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