[BProc] Re: deadlock with 2.4.21/3.2.6

[Nicholas H. <he...@se...>]

On Tue, 2003-10-14 at 11:56, er...@he... wrote:
> 
> Hrm.  I'm glad you brought this up.  I've recently seen a similar
> problem.  I thought it had something to do with the recent network
> upgrade we did.  Sounds like probably not.

Fun ;/ Thanks for taking a look at it.

> 
> It's pretty mysterious to me.  BProc really doesn't do much with
> interrupts turned off.  I've been working on reproducing it more
> reliably here.
> 
> I don't know a good way to shake the kernel loose in that case.  One
> thing we wwere going to try was to instrument it a bit with POST codes
> or try and poke around in memory a bit with a bus analyzer.

Ok -- way over my head there, I wonder if a hardware watchdog card would
help - or if that would give the same results as the nmi_watchdog..aka
nothing.

> 
> Can you resent the attachment?  I didn't get it for some reason.

Heh, probably forgot to attach it -- it is now.

Nic
-- 
Nicholas Henke
Penguin Herder & Linux Cluster System Programmer
Liniac Project - Univ. of Pennsylvania