Subject: Re: SS10 unstable under high load (SMP)
To: Michael-John Turner <mj@turner.org.za>
From: Atte =?iso-8859-1?Q?Peltom=E4ki?= <atte.peltomaki@iki.fi>
List: port-sparc
Date: 10/29/2007 13:36:29
On Thu, Sep 13, 2007 at 07:52:10PM +0300, Atte Peltomäki wrote:
> On Thu, Jul 19, 2007 at 10:46:28AM +0200, Michael-John Turner wrote:
> > On Thu, Jul 19, 2007 at 11:17:49AM +0300, Atte Peltom?ki wrote:
> > > Tried, and failed miserably. After having hubertf read
> > > pthread.buildlink3.mk for me enough to locate the undocumented
> > > PREFER_NATIVE_PTHREADS environment variable and setting it to "no" in
> > > python24 Makefile, I get this:
> > 
> > [snip]
> > 
> > Ah yes, I've seen this on sparc64 systems when trying to build certain
> > packages and not using native pthreads (eg clamav). A quick 'n dirty hack
> > is to do the following:
> 
> Anyway. It seems the process is deadlocking. I'll keep on poking at it,
> but here's a ktrace dump of it:
> 
> http://worm.hole.fi/atte/python-dump.ktrace
> (It's 3.3MB on a 2Mbit line, so it can take a small while to download)

Since the problem seems to be quite persistent and debugging it is
extremely difficult (kernel crashdumps cannot be saved, and some
watchdog resets the box after n minutes in console, eg. kernel
debugger), I will simply give up for the time being and try with
-current later on. 

-- 
Atte Peltomäki