Re: kernel panic

From: Kris Kennaway (kris_at_obsecurity.org)
Date: 07/31/03

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    Date: Wed, 30 Jul 2003 21:52:23 -0700
To: Scot Loach <sloach@sandvine.com>

    On Wed, Jul 30, 2003 at 06:41:03PM -0400, Scot Loach wrote:
    > Yesterday I had a kernel panic on a FreeBSD 4.7 system. Looking at the core
    > dump, it was caused by a corrupted uidinfo pointer referenced by a tcp pcb.
    > I searched through the archives and found an identical stack trace in this
    > message from 2000:
    >
    > http://docs.freebsd.org/cgi/getmsg.cgi?fetch=322837+0+archive/2000/freebsd-s
    > table/20000625.freebsd-stable
    >
    > This was apparently fixed by a patch discussed in this thread.
    >
    > http://www.geocrawler.com/archives/3/171/2000/11/0/4718890/
    >
    > The patch was applied to version 1.66 and 1.67 of /sys/kern/kern_resource.c
    >
    > I browsed through the CVS for these changes, but found no evidence of them
    > ever being merged to RELENG_4.
    >
    > This is a real memory corruption in the kernel. If these changes were never
    > merged, does anyone know wny? Can anyone suggest a course of action to
    > resolve this?

    It looks like most of the content of those commits were 5.0 specific,
    but you'd have to ask the committer about strategies for merging the
    behaviour.

    Kris

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