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Re: kern/12404 (panic: ffs_alloccg: map corrupted)
The following reply was made to PR kern/12404; it has been noted by GNATS.
From: Mindaugas Rasiukevicius <rmind%NetBSD.org@localhost>
To: gnats-bugs%NetBSD.org@localhost, netbsd-bugs%netbsd.org@localhost
Cc: he%uninett.no@localhost, pooka%NetBSD.org@localhost
Subject: Re: kern/12404 (panic: ffs_alloccg: map corrupted)
Date: Sat, 24 May 2008 00:01:40 +0100
Here is the patch which may fix the problem:
It is obtained from FreeBSD (see revision 1.52 and 1.53 of ffs_balloc.c),
with some minor changes. It looks for me that fail-path could simplified,
eg. unwindidx could probably be removed. However I do not understand (or
misunderstand) this code enough to claim anything.
Would be great if some FFS-competent developer would take a deeper look at
all the logic of this function.
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