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Date:      Mon, 20 Nov 2000 17:55:34 +0200 (SAT)
From:      John Hay <jhay@icomtek.csir.co.za>
To:        jburkhol@home.com
Cc:        jhb@FreeBSD.ORG, smp@FreeBSD.ORG, cp@bsdi.com
Subject:   Re: cvs commit: src/sys/kern kern_timeout.c
Message-ID:  <200011201555.eAKFtYS92502@zibbi.icomtek.csir.co.za>
In-Reply-To: <200011171523.eAHFNEV94801@zibbi.icomtek.csir.co.za> from John Hay at "Nov 17, 2000 05:23:14 pm"

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> > 
> > Here's a patch that seems to work ok here.  It works on my UP box running
> > X and stuff, I don't notice any hung processes.  It works on the SMP box,
> > I built a kernel over NFS and it seemed ok, except that I can't
> > get a kernel to boot using the serial console with WITNESS enabled.  It
> > stops at the twiddle thing before the copyright is printed and just hangs.
> > This also happens without the patch and even with a UP kernel, so I don't
> > really know what's going on.  Please try and let me know if you still
> > see the hung processes.
> > 
> 
> Well I have tried your patch and so far it looks good. I have finished
> a "make -j13 world" and a "make release NODOC=YES WORLD_FLAGS=-j4" with
> no problems on a dual 266MHz PII.

It looks like I spoke too soon. After those 2 runs without problems, I
haven't been able to get a world or release to finish again. Always
some process that gets stuck somewhere with no error or anything. If I
kill it it dies and everything seems ok again.

One thing that I have noticed the last few times is that there is always
a zombie process when this happens and it looks like it is the zombie's
parent that gets stuck. If I kill the parent, the zombie goes away and 
the rest of the processes that was waiting for it to finish untangle
themselves.

I have also tried allproc2.diff, but it did not seem to make a difference.

John
-- 
John Hay -- John.Hay@icomtek.csir.co.za


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