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Date:      Fri, 16 Dec 2005 15:25:11 -0500
From:      John Baldwin <jhb@freebsd.org>
To:        Goran Gajic <ggajic@afrodita.rcub.bg.ac.yu>
Cc:        freebsd-current@freebsd.org
Subject:   Re: skype-1.2.0.18-static for linux and FreeBSD 7.0 CURRENT
Message-ID:  <200512161525.12656.jhb@freebsd.org>
In-Reply-To: <Pine.LNX.4.63.0512161010280.11682@afrodita.rcub.bg.ac.yu>
References:  <Pine.LNX.4.63.0512151648170.12379@afrodita.rcub.bg.ac.yu> <200512151356.41550.jhb@freebsd.org> <Pine.LNX.4.63.0512161010280.11682@afrodita.rcub.bg.ac.yu>

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On Friday 16 December 2005 04:13 am, Goran Gajic wrote:
> On Thu, 15 Dec 2005, John Baldwin wrote:
> > If you are in X this is probably a panic (currently the kernel doesn't
> > create a coredump while you are in X which is a bug).  Can you hook up a
> > serial console and use that to get the panic message?
>
> Yes, here is capture from minicom:
>
> drm0: <ATI Radeon RV280 9200 SE> port 0xc000-0xc0ff mem
> 0xe8000000-0xefffffff,0xff8f0000-0xff8fffff irq 16 at device 0.0 on pci1
> info: [drm] AGP at 0xf8000000 64MB
> info: [drm] Initialized radeon 1.19.0 20050911
> info: [drm] Loading R200 Microcode
> lock order reversal:
>   1st 0xc366e21c vnode interlock (vnode interlock) @ kern/vfs_vnops.c:791
>   2nd 0xc3b8fb44 process lock (process lock) @ i386/i386/trap.c:742
> KDB: stack backtrace:
> kdb_backtrace(0,ffffffff,c0975450,c0975900,c0927544) at kdb_backtrace+0x29
> witness_checkorder(c3b8fb44,9,c08be5a5,2e6) at witness_checkorder+0x580
> _mtx_lock_flags(c3b8fb44,0,c08be59c,2e6,c3b91780) at _mtx_lock_flags+0x5b
> trap_pfault(dbc9da28,0,3) at trap_pfault+0xb2
> trap(dbc90008,c0680028,c09b0028,c3b91780,dbc9da84) at trap+0x3cd
> calltrap() at calltrap+0x5
> --- trap 0xc, eip = 0xc081799c, esp = 0xdbc9da68, ebp = 0xdbc9da70 ---
> stack_save(dbc9da84) at stack_save+0x1c

Ah, I think the stack_save() stuff in 6.0 is buggy.  I think there's a fix in 
HEAD.  I would just turn those DEBUG options off for now.

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org



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