Re: [BProc] Re: deadlock with 2.4.21/3.2.6

[<er...@he...>]

On Tue, Oct 21, 2003 at 12:48:27PM -0400, Nicholas Henke wrote:
> On Tue, 2003-10-21 at 11:54, er...@he... wrote:
> > I got an oops out of the NMI watchdog which was enlightening (or at
> > least indicated which code was at fault).  The following patch may
> > have fixed it for me.  I say "may have" since I've had some trouble
> > reproducing the problem reliably.
> > 
> > This patch turns off "sigbypass" which is a little optimization where
> > a process sending a signal to a ghost doesn't bother the ghost.
> > Instead it just throws a signal forwarding message right on the
> > message queue.  I'm not sure how the code is broken.  I haven't had
> > time to look into it yet.
> > 
> > Please give it a try and let me know if you still see the deadlock.
> 
> Thanks for the quick patch, I am running now to see if it deadlocks.
> 
> BTW -- did you do anything special to get NMI to dump an oops for you?
> Can you tell me the basic setup -- I am just booting with
> nmi_watchdog=1, and I see the interrupts in /proc/interrupts. Does
> something more need to be done ?

That's all I did.

- Erik