amd64/89550: spin-lock panics continue (crash trace)

Mikhail Teterin mi+kde at
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>
To: bug-followup at, awallac3 at, jhb at,
        stable at
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.

More information about the freebsd-amd64 mailing list