Date: Mon, 4 Aug 1997 00:30:46 -0700 (PDT) From: Poul-Henning Kamp <phk@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG, cvs-sys@FreeBSD.ORG Subject: cvs commit: src/sys/ufs/ffs ffs_alloc.c Message-ID: <199708040730.AAA15522@freefall.freebsd.org>
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phk 1997/08/04 00:30:45 PDT
Modified files:
sys/ufs/ffs ffs_alloc.c
Log:
We got a couple of "map mismatch" panics from the following
code. According to the crash dump, bpref is set to 445
and cgp->cg_nclusterblks is 444. Hence in the for loop,
the test fails immediately but the following failure check
(got == cgp->cg_nclusterblks) doesn't trigger because got >
cgp->cg_nclusterblks. This wreaks havoc in the code after that.
Fix: Move one source bit to the left :-)
Noticed by: Mike Hibler <mike@fast.cs.utah.edu>
Submitted by: Kirk McKusick <mckusick@McKusick.COM>
Revision Changes Path
1.34 +2 -2 src/sys/ufs/ffs/ffs_alloc.c
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