Date: Wed, 14 Mar 2001 16:39:53 -0800 (PST) From: Matt Dillon <dillon@earth.backplane.com> To: Dag-Erling Smorgrav <des@ofug.org> Cc: current@FreeBSD.ORG Subject: Re: Panic and filesystem corruption Message-ID: <200103150039.f2F0drt33628@earth.backplane.com> References: <xzp8zm91d5a.fsf@flood.ping.uio.no>
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:I was cvsupping the GNATS database (the *entire* GNATS database, that
:is - I didn't already have a copy) when I got this panic:
How old a kernel are you running?
Kirk and I have been attempting to locate the filesystem bitmap
corruption for months. We've fixed a number of bugs but have yet
to find a smoking gun. It is possible that it *has* been fixed but
people's filesystems still contain some corruption from previous
breakage.
The corruption appears to be related to heavy directory activity
and may or may not be related to softupdates. We just can't tell.
We can't reproduce it. We thought we had found someone who could
reproduce the problem at will but it turned out to be his RAID
controller screwing up (where even newfs followed by an fsck would
generate errors). Yahoo's test machines still occassionally show
the problem, but so far it's too infrequent to get a good handle on.
fsck all of your filesystems from single-user to remove the possibility
of 'old' corruption (as in 'fsck', not 'fsck -p').
-Matt
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