Date: Thu, 26 Feb 2009 23:58:18 +0200 From: Alexander Motin <mav@FreeBSD.org> To: Manfred Antar <null@pozo.com> Cc: Gavin Atkinson <gavin@FreeBSD.org>, FreeBSD-Current <freebsd-current@freebsd.org> Subject: Re: Fatal trap 18 on Current 1386 since Saturday 21 Feb 2009 Message-ID: <49A7107A.5080208@FreeBSD.org> In-Reply-To: <200902260208.n1Q280jg001474@pozo.com> References: <200902250259.n1P2xvYh001449@pozo.com> <1235559230.15704.4.camel@buffy.york.ac.uk> <200902251410.n1PEAla5010605@pozo.com> <1235573928.15704.10.camel@buffy.york.ac.uk> <200902251508.n1PF8ORo001737@pozo.com> <1235576175.15704.15.camel@buffy.york.ac.uk> <200902260208.n1Q280jg001474@pozo.com>
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Manfred Antar wrote: > At 07:36 2/25/2009, Gavin Atkinson wrote: >> My suspicion is that it is this commit: >> >> http://docs.freebsd.org/cgi/getmsg.cgi?fetch=1637857+0+archive/2009/svn-src-all/20090222.svn-src-all >> >> >> Might be worthwhile trying the source from just before, and just after >> it and seeing if that is the cause. > > Yes that's it I put: > > /sys/dev/ata/ata-all.c > /sys/dev/ata/ata-all.h > /sys/dev/ata/ata-pci.h > /sys/dev/ata/ata-sata.c > /sys/dev/ata/chipsets/ata-promise.c > > from before the changes on the 21st in current /sys and kernel builds > and boots fine > My original date of the 14th was wrong, I looked at the calendar thought > it was the 14th > but actually uname -a of the last working kernel was the 21st 7am. Looking on on your first and later posts I would say that this commit may happen not a root of your problem. It may just trigger something else. Problem begins when some of your drives on ata1 channel timeouts request that leads to several controller reinits. I think that durung that driver somehow gets wrong drive parameters that leads to division by zero error inside ata_tf_write(). I have just committed one patch that probably does not fix the problem, but change process a bit. Could you try it and send me all ata related verbose messages starting from controller detection. -- Alexander Motin
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