Date: Sun, 16 Dec 2007 10:28:03 -1000 From: Clifton Royston <cliftonr@lava.net> To: Jeremy Chadwick <koitsu@FreeBSD.org> Cc: freebsd-stable@freebsd.org, User Questions <freebsd-questions@freebsd.org> Subject: Re: OS bug in taskq Message-ID: <20071216202803.GC2036@lava.net> In-Reply-To: <20071215235810.GA81924@eos.sc1.parodius.com> References: <m4c8m3lpt31svrvlb5jcj04nsnhffv1e6r@4ax.com> <20071215235810.GA81924@eos.sc1.parodius.com>
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On Sat, Dec 15, 2007 at 03:58:10PM -0800, Jeremy Chadwick wrote: > On Sat, Dec 15, 2007 at 01:03:14PM -0700, Elliot Finley wrote: > > I have: > > dumpdev="AUTO" > > in /etc/rc.conf and: > > ... > > in the kernel and I'm still unable to obtain a crash dump. Hopefully > > there is enough info in this email for a hacker to point me in the > > right direction to debug this. > > I can't help with the panic itself, but the reason for the inability to > obtain a crash dump is mentioned in a thread I started in November: > > http://lists.freebsd.org/pipermail/freebsd-stable/2007-November/038069.html > > The explanation of the problem was documented best by Doug Barton in > this thread (over at freebsd-rc@): > > http://lists.freebsd.org/pipermail/freebsd-rc/2007-November/001263.html > > Open PR: > > http://www.freebsd.org/cgi/query-pr.cgi?pr=118255 Why does it work *sometimes* then? Or was this particular problem introduced more recently than the 6.2 branch? I have two apparently similarly configured systems running 6.2p8, with identical hardware, identical apps, and identical load, and I have at least attempted to configure them the same way. Both have /var/crash set up and "dumpon" enabled in rc.conf. Both crashed in the last week. I got a dump on one, which I now need to analyze, but have twice failed to get a dump on the other. (Once this past week, once the previous month.) -- Clifton -- Clifton Royston -- cliftonr@iandicomputing.com / cliftonr@lava.net President - I and I Computing * http://www.iandicomputing.com/ Custom programming, network design, systems and network consulting services
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