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Date: Fri, 7 Apr 2006 10:28:41 -0500
From: Dan Nelson <dnelson@allantgroup.com>
To: Kurt Miller <kurt@intricatesoftware.com>
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Cc: Daniel Eischen <deischen@freebsd.org>, freebsd-java@freebsd.org
Subject: Re: Diablo 1.5 SIGBUS
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In the last episode (Apr 07), Kurt Miller said:
> On Thursday 06 April 2006 11:41 pm, Daniel Eischen wrote:
> > On Thu, 6 Apr 2006, Kurt Miller wrote:
> > > On Thursday 06 April 2006 8:49 pm, odela01 wrote:
> > > > I applied the patch and did "make all install" in
> > > > /usr/src/lib/libpthread, but it didn't make any difference.
> > > > I'll try to arrange access to the core dump.
> > >
> > > Thanks for making the core dump available to me. It was helpful.
> > > I got a partial stack trace from it:
> > >
> > > #0  0x280aa41b in pthread_setcancelstate () from /usr/lib/libpthread.so.2
> > > #1  0x280a29a6 in pthread_mutexattr_init () from /usr/lib/libpthread.so.2
> > > #2  0x00000000 in ?? ()
> > >
> > > This bt also supports Dan Nelson's observations that this could
> > > be a threading issue. It would be great if you or Dan built a
> > > debug pthreads by commenting the CFLAGS+= -g line in
> > > /usr/src/lib/pthreads/Makefile and rebuilding/reinstall pthreads.
> > > The back-trace from the core file would contain line numbers and
> > > be more useful then.
> > 
> > That stack trace doesn't help.  pthread_mutexattr_init(), doesn't
> > call pthread_setcancelstate().
> > 
> > Is there any fork()ing going on?
> 
> One of the reports indicated RabbIT3
> (http://www.khelekore.org/rabbit/) was causing failures. It doesn't
> do any fork()ing.

To keep someone else from mentioning it:  It can fork if you enable the
image compressor, but I don't, so in my case it isn't.

-- 
	Dan Nelson
	dnelson@allantgroup.com