Re: 5.3 and maxproc exceeded

From: Kris Kennaway (kris_at_obsecurity.org)
Date: 12/23/04

  • Next message: Bartosz Fabianowski: "Recent CPUTYPE changes breaking kernel on Centrino" 
    Date: Thu, 23 Dec 2004 14:51:56 -0800
To: niklas@registrar.no

    On Thu, Dec 23, 2004 at 11:49:50AM +0100, niklas@registrar.no wrote:
    > Hi,
    > I'm trying to dig up a problem. A server I have running 201 jails with a
    > total of ~2200 processes gets about every five minutes:
    >
    > "maxproc limit exceeded by uid 2, please see tuning(7) and login.conf(5)"
    >
    > First of all, uid 2 has only a few sendmail processes running (postfix
    > alias for sendmail) Second of all, I've upped both kern.maxproc and
    > kern.maxprocperuid to 32k and 16k, well above what this server actually
    > runs of total processes.

    It may only have a few processes running, but uid 2 was the owner of
    the one process that caused the total to exceed the maxproc limit.

    > To make things even more interesting, java dies by signal 6 (Abort)
    > frequently (it's running Tomcat 4.1) (while I was writing this mail, make
    > buildworld Abort'ed as well :-I ) and I've had reports of this server
    > panicing a few times the last 24 hours, but since I haven't been around
    > when it's happened and no-one noted down the panic messages because they
    > were too stressed about getting the computer up, I have no clue what might
    > have happened there.

    This may also be a side-effect of a resource limit being exceeded.

    You should enable crashdumps, so that you can dissect the panic after
    the computer reboots.

    Kris

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