Regression 7.0R -> 7-stable?

[John Baldwin]

On Tuesday 07 October 2008 09:37:10 am Jeremy Chadwick wrote:
> On Tue, Oct 07, 2008 at 02:37:24PM +0200, Gerrit Kühn wrote:
> > On Tue, 7 Oct 2008 13:38:01 +0200 Gerrit Kühn <gerrit at pmp.uni-hannover.de>
> > wrote about Re: Regression 7.0R -> 7-stable?:
> > 
> > [...]
> > 
> > GK> However, yesterday I upgraded the system to a recent 7-stable
> > GK> codebase, and now it locks again hard after probing the CPU cores. My
> > GK> setup remained exactly the same, the new code just does not work.
> > GK> Please let me know what I have do to provide further information.
> > 
> > Well, comparing the kernel setups again I found one thing that makes a
> > difference: The scheduler (somewhen SCHED_ULE has been declared the
> > default).
> > SCHED_ULE is crashing the system, SCHED_4BSD works fine...
> 
> This is of great concern if in fact that's true.
> 
> I'm adding Jeff Roberson, author of the ULE/SMP2.0 code, to the CC.

Do you have more details about the crash?  Are you getting an actual panic 
with messages on the console, or are you still seeing hangs?  When you get a 
hang, can you break into the debugger and get a crash dump?

-- 
John Baldwin