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Date:      Sun, 8 May 2005 08:18:40 +0200
From:      Peter Holm <peter@holm.cc>
To:        Gavin Atkinson <gavin.atkinson@ury.york.ac.uk>
Cc:        current@freebsd.org
Subject:   Re: panic: Lock GEOM topology not exclusively locked
Message-ID:  <20050508061840.GA98114@peter.osted.lan>
In-Reply-To: <20050508001118.L6307@ury.york.ac.uk>
References:  <20050507145707.GA83528@peter.osted.lan> <20050508001118.L6307@ury.york.ac.uk>

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On Sun, May 08, 2005 at 12:13:07AM +0100, Gavin Atkinson wrote:
> On Sat, 7 May 2005, Peter Holm wrote:
> 
> >With GENERIC HEAD from May 5 04:56 UTC I got:
> >
> >panic(c0841f8c,c083c2d3,c083c608,1d8,1) at panic+0x14b
> >_sx_assert(c0906ae0,4,c083c608,1d8) at _sx_assert+0x77
> >g_new_providerf(c1733900,c081aeee,0,1,c168b804) at g_new_providerf+0x1f
> >acd_read_toc(c16af780,0,c091c1a0,0,0) at acd_read_toc+0x1c0
> >acd_geom_ioctl(c1733880,c00c6303,c16ba7b0,5,c1863600) at 
> >acd_geom_ioctl+0x6a
> >g_dev_ioctl(c174d500,c00c6303,c16ba7b0,5,c1863600) at g_dev_ioctl+0x1cf
> >devfs_ioctl_f(c181a360,c00c6303,c16ba7b0,c19f7780,c1863600) at 
> >devfs_ioctl_f+0xc7
> >ioctl(c1863600,cf387d04,3,45,200246) at ioctl+0x370
> >syscall(80c003b,80c003b,bfbf003b,bfbfd8fc,80fc100) at syscall+0x227
> 
> Were you trying to mount a CD at the time, just inserting one or had it 
> in already at boot?
> 

I was testing grip, so it was a music cd. The second panic was with
the cd already in.
Testing with a different CD made the panic go away.

- Peter

> I had the exact same panic (well, ignoring filesystem changes) a year ago 
> when trying to mount a data partition off a CD which also contained audio 
> tracks.
> 
> http://lists.freebsd.org/pipermail/freebsd-current/2004-April/026495.html
> 
> Gavin



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