Date: Fri, 10 Sep 2010 15:55:10 +0100 From: a.smith@ukgrid.net To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: freebsd-fs@freebsd.org, Andriy Gapon <avg@icyb.net.ua> Subject: Re: ZFS related kernel panic Message-ID: <20100910155510.11831w104qjpyc4g@webmail2.ukgrid.net> In-Reply-To: <20100910141127.GA13056@icarus.home.lan> References: <20100909140000.5744370gkyqv4eo0@webmail2.ukgrid.net> <20100909182318.11133lqu4q4u1mw4@webmail2.ukgrid.net> <4C89D6A8.1080107@icyb.net.ua> <20100910143900.20382xl5bl6oo9as@webmail2.ukgrid.net> <20100910141127.GA13056@icarus.home.lan>
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Quoting Jeremy Chadwick <freebsd@jdc.parodius.com>: > What we're looking for is something that resembles what's shown here > (using this as an example): > > http://www.mail-archive.com/freebsd-xen@freebsd.org/msg00413.html > > The KDB and KDB_TRACE options should result in a backtrace automatically > being shown when the system panics. Are you absolutely certain your > kernel config has the options Andriy provided, and you rebuilt + > reinstalled the kernel? > Hi Jeremy, well Ive not had to built a custom kernel before, but Ive done the make buildkernel and make installkernel and all seems to have gone thro as expected. Here is the evidence from after a reboot: # pwd /usr/src/sys/amd64/conf # grep KDB ZFSDEBUG options KDB options KDB_TRACE [root@kappa /usr/src/sys/amd64/conf]# uname -a FreeBSD kappa.ukgrid.net 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Fri Sep 10 12:30:24 BST 2010 root@kappa.ukgrid.net:/usr/obj/usr/src/sys/ZFSDEBUG amd64 Any ideas? thanks Andy.
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