amd64/89550: [amd64] sym0: VTOBUS failed (6.0 Release)

[Mikhail Teterin]

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
Cc: "Jan Mikkelsen" <janm at transactionware.com>
Subject: Re: amd64/89550: [amd64] sym0: VTOBUS failed (6.0 Release)
Date: Wed, 31 Jan 2007 11:29:08 -0500

 Hello!
 
 The 6.2's install shamefully paniced on our amd64-system -- due to this bug. 
 We had to borrow an Adaptec card and then switch back to the Symbios ones 
 after applying Jan's patch-1.diff
 
 Unfortunately, that patch allowed us to collect a number of kernel dumps:
 
 	http://aldan.algebra.com/~mi/bonkers-crash-0.txt - GPF
 	http://aldan.algebra.com/~mi/bonkers-crash-1.txt - spin lock
 	http://aldan.algebra.com/~mi/bonkers-crash-2.txt - GPF
 
 (there were more panics with "spin lock held too long", but no kernel dump 
 took place, perhaps, because the dumpdev is attached to the sym-card too)
 
 The second patch, posted by Jan on Sep 26th seems much better so far, although 
 the driver's use of Giant is still disappointing...
 
 Maybe, Jan's enhancement can be committed to stop the VTOBUS-panics from 
 happening again?
 
 Thanks!
 
 	-mi