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Date: Mon, 21 Jan 2008 22:51:54 +0100
From: Kris Kennaway <kris@FreeBSD.org>
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To: Petr Holub <hopet@ics.muni.cz>
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Cc: stable@freebsd.org, rwatson@FreeBSD.org
Subject: Re: 6.3-RELEASE panic
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Petr Holub wrote:
> Hi,
> 
> I've just updated the 6.2-RELEASE to 6.3-RELEASE using freebsd-update
> as described in daemonology blog.
> 
> While removing the old packages using
> pkg_delete -af
> I've tried to stop all the deamons from /usr/local/etc/rc.d and
> got the following panic (hand transcribed from a photo - I don't have that
> machine enabled for remote debugging). Panic seems to be deterministic
> when stopping those scripts (verified by subsequent attempts while
> pkg_delete was not running).

> (kgdb) bt
> #0  0xc06a46a6 in doadump ()
> #1  0xc06a4b76 in boot ()
> #2  0xc06a4e0c in panic ()
> #3  0xc090d1b4 in trap_fatal ()
> #4  0xc090cf1b in trap_pfault ()
> #5  0xc090cb59 in trap ()
> #6  0xc08f9fea in calltrap ()
> #7  0xc073fa6f in in_delmulti ()
> #8  0xc0748e15 in ip_freemoptions ()
> #9  0xc07414cc in in_pcbdetach ()
> #10 0xc075a0ee in udp_detach ()
> #11 0xc06de0b8 in soclose ()
> #12 0xc06cd83b in soo_close ()
> #13 0xc0683ffc in fdrop_locked ()
> #14 0xc0683f25 in fdrop ()
> #15 0xc0682553 in closef ()
> #16 0xc067f8e7 in kern_close ()
> #17 0xc067f6d8 in close ()
> #18 0xc090d4cb in syscall ()
> #19 0xc08fa03f in Xint0x80_syscall ()
> #20 0x00000033 in ?? ()
> Previous frame inner to this frame (corrupt stack?)

Can you obtain a trace against the kernel.symbols?

Kris