amd64/89550: spin-lock panics continue (crash trace)
mi+kde at aldan.algebra.com
Sat May 26 15:50:23 UTC 2007
The following reply was made to PR amd64/89550; it has been noted by GNATS.
From: Mikhail Teterin <mi+kde at aldan.algebra.com>
To: bug-followup at freebsd.org, awallac3 at uiuc.edu, jhb at freebsd.org,
stable at freebsd.org
Subject: Re: amd64/89550: spin-lock panics continue (crash trace)
Date: Sat, 26 May 2007 11:30:51 -0400
The patch in the PR allows our two Symbios 875 boards to work with
However, the machine continues to suffer from the "spin lock held to long"
panics every few days. Usually, there is a double-panic, which prevents crash
dump from occuring. But this morning it succeeded.
The full trace is available at
The panic is from kern_mutex.c. The value of the delay-counting i is, no
surprise, exactly 60000000.
I'm not sure, if it is the sym-enabling patch, that causes the problem, or
something else. Either way, it would be very useful for an expert to look at
it -- and commit the (possibly modified) patch too.
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