Re: kern/39993: lockup on i386 SMP (raidframe related ?)

[Greg Oster <oster%cs.usask.ca@localhost>]

The following reply was made to PR kern/39993; it has been noted by GNATS.

From: Greg Oster <oster%cs.usask.ca@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/39993: lockup on i386 SMP (raidframe related ?) 
Date: Fri, 21 Nov 2008 09:19:31 -0600

 bouyer%antioche.eu.org@localhost writes:
 > I also have a core dump. The stack traces were indentical in all hangs I got.
 > disabling SMP at boot (boot -1) work around the problem.
 > LOCKDEBUG+DEBUG+DIAGNOSTIC does't give any additionnal info. 
 > This hardware was running without issues under 3.1 with SMP.
 > 
 > >How-To-Repeat:
 >      boot a SMP system with raidframe and generate I/O ?
 
 Were it only that simple, I'd be happy...  Unfortunately, I've got a 
 couple of different boxes w/ 5.0_BETA+SMP+RAIDframe+heavy IO and I 
 havn't seen this problem at all.. :( 
 
 What happens if you do:
 
   dd if=/dev/rsd0e of=/dev/null bs=1m &
   dd if=/dev/rsd1e of=/dev/null bs=1m &
 
 where rsd0e and rsd1e are the (raw) components of your RAID set?
 
 Later...
 
 Greg Oster