Re: 2.5.62-mjb3 (scalability / NUMA patchset)

[Mark Haverkamp <markh@osdl.org>]

On Wed, 2003-02-26 at 07:55, Martin J. Bligh wrote:
> >> The patchset contains mainly scalability and NUMA stuff, and anything 
> >> else that stops things from irritating me. It's meant to be pretty
> >> stable,  not so much a testing ground for new stuff.
> >> 
> >> I'd be very interested in feedback from anyone willing to test on any 
> >> platform, however large or small.
> >> 
> >> ftp://ftp.kernel.org/pub/linux/kernel/people/mbligh/2.5.62/patch-2.5.62-
> >> mjb 3.bz2
> >> 
> > 
> > Martin,
> > 
> > I have been seeing system hangs on my 16 processor numaq while running
> > contest.  The system will hang within a few seconds to half an hour. 
> > Unfortunately there is no stack trace or any other indication on the
> > system console.  I have been running your 2.5.62-mjb2 without problems
> > previously.  Any ideas what I can do to narrow this down?
> 
> Humpf. Can you try backing out this patch (it caused me similar problems on
> 59, but seemed fine in 62). I suspect it's just changing timing enough that
> we hit some other bug ... 

OK, I'll try this.


> if you could, would be nice to try the ALT+SYSRQ
> stuff, or turn on NMI watchdogs and get a backtrace ... I've  not been able
> to reproduce this on recent kernels.

I'll try these first and see what happens.

Mark.


-- 
Mark Haverkamp <markh@osdl.org>