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Date:      Sat, 21 Jan 2006 10:18:05 -0500
From:      "Tamouh H." <hakmi@rogers.com>
To:        <freebsd-questions@freebsd.org>
Subject:   RE: panic on 5.4 SMP kernel when jailed apache is used heavily
Message-ID:  <20060121151953.D2DE143D46@mx1.FreeBSD.org>
In-Reply-To: <20060121122245.8A87243D48@mx1.FreeBSD.org>

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>
> Hi all,
>
>
>
> I upgraded a 5.3 system to 5.4 both with SMP kernels, I'm
> running 6 jails on a dual xeon 1.26 hp rackmount. When apache
> (both 1.3 and 2.0) is being used heavily the system panics.
> With a 5.4 GENERIC kernel or a 5.3 SMP kernel this behaviour
> does not happen and the system is stable. Does anyone have an
> idea ? Or should I post this to bugs ?
>
>
>
> Regards,
>
> Ruben
>

Most likely you need to update the src and recompile:

http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/i386/i386/pmap.c.diff?r1=1.494
.2.9&r2=1.494.2.10&f=h

The link above is where the problem occurs once you enable SMP Kernel you'll
receive Fatal Trap Error.

This has been discussed at:

http://groups.google.com/group/list.freebsd.questions/browse_thread/thread/7
57e3350f8847edd/15c076d8db0eba64?lnk=st&q=tamouh+freebsd+5.4+kernel&rnum=2#1
5c076d8db0eba64

Good luck!

Tamouh






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