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Date:      Wed, 22 Jun 2016 08:46:42 -0700
From:      "Steven G. Kargl" <kargl@troutmask.apl.washington.edu>
To:        Andriy Gapon <avg@FreeBSD.org>
Cc:        kargl@uw.edu, freebsd-current@FreeBSD.org
Subject:   Re: panic in g_vfs_strategy()
Message-ID:  <20160622154642.GB84271@troutmask.apl.washington.edu>
In-Reply-To: <30eb3425-b6e8-6b08-ad6d-d8188b7f9ad7@FreeBSD.org>
References:  <20160621220417.GA33717@troutmask.apl.washington.edu> <30eb3425-b6e8-6b08-ad6d-d8188b7f9ad7@FreeBSD.org>

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On Wed, Jun 22, 2016 at 11:15:27AM +0300, Andriy Gapon wrote:
> On 22/06/2016 01:04, Steve Kargl wrote:
> > After a forced umount of a msdos filesystem, I received
> > a panic.  I have the kernel and vmcore.  The first hundred
> > or so lines of core.txt.4 follow my .sig.
> > 
> 
> It seems that this problem might have the same root cause as this bug
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210316
> so it could be worth while following up there.
> 
> BTW, some mail user agents render signatures (and, by extension,
> anything that follows them) in a much less readable way than a regular
> message text.
> 

Thanks for the pointer to the bug.  Yes, I think my
panic is the same as yours.  Checking /var/log/messages
I find errors of the form

Jun 21 14:14:39 troutmask kernel: g_vfs_done():da1s1[WRITE(\
offset=-1099375943680, length=32768)]error = 5

Inspection of the FAT32 msdosfs showed about 1 TB of disk space
used.  I suspect, but can't prove, I hit a filesystem limit. 

-- 
Steve
http://troutmask.apl.washington.edu/~kargl/



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