Date: Mon, 21 Jul 2003 14:53:55 +0400 From: "Andrew L. Neporada" <andr@dgap.mipt.ru> To: Avleen Vig <lists-freebsd@silverwraith.com> Cc: freebsd-hackers@freebsd.org Subject: Re: 4.8 panic "ffs_clusteralloc: map mismatch" [SOLVED] Message-ID: <20030721105355.GA2198@nas.dgap.mipt.ru> In-Reply-To: <20030716125744.GI68950@silverwraith.com> References: <20030716125744.GI68950@silverwraith.com>
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On Wed, Jul 16, 2003 at 05:57:44AM -0700, Avleen Vig wrote: > > I have been experiencing several "ffs_clusteralloc: map mismatch" > > kernel panics (always while heavy r/w activity on ad0). PC in question > > has SuperMicro P3TDL3 motherboard, > > 2 ide + 1 scsi HDD and 4 nics (full dmesg & kernel config attached). > > Andrew, > > I spend about two to three years fighting with a system trying to figure > out what was wrong, and why these errors were caused. I got the very > same crashes you're seeing now. > I'm sure others are too, and I think this reply would be useful for the > archives. It seems that this panic was a result of filesystem corruption, which was caused by hw.ata.wc=1 on <ServerWorks ROSB4 ATA33 controller> and <ST320414A> HDD. After setting up hw.ata.wc=0 in /boot/loader.conf problems are all gone. > -- > Avleen Vig "Say no to cheese-eating surrender-monkeys" > Systems Admin "Fast, Good, Cheap. Pick any two." > www.silverwraith.com "Move BSD. For great justice!" Andrew.
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