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Date:      Thu, 8 Mar 2001 11:41:24 -0500 (EST)
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org
Subject:   Re: cvs commit: src/sys/alpha/linux linux_machdep.c
Message-ID:  <15015.46644.560559.295789@grasshopper.cs.duke.edu>
In-Reply-To: <XFMail.010307230523.jhb@FreeBSD.org>
References:  <20010307225230.A27093@grasshopper.cs.duke.edu> <XFMail.010307230523.jhb@FreeBSD.org>

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John Baldwin writes:
 > > 
 > > Perhaps this is DES's problem on x86 too? (I don't have INVARIANTS,
 > > witness, etc turned on right now).
 > 
 > Most likely.  Hmmmm.  The only difference here is that the new process stays at
 > SIDL until rfork returns and then gets put in SRUN later after we've dinked
 > with the process. :(  We use the same trick with kthreads to ensure that they
 > aren't executed before the fork handler is setup to keep the thread in the
 > kernel.  Well, after wandering through all of the fork code, I can't see where
 > this is going wrong, but I'll try to throw in some more debugging stuff to see
 > what I can turn up.

Yes, I think this is DES's panic.  Now that I have DIAGNOSTIC and
INVARIANTS, I'm crashing with the following panic:
panic: msleep

syncing disks... 2 2 panic: runq_add: proc 0xfffffe00068257a0 (ex1) not SRUN
Uptime: 23m48s

dumping to dev da0b, offset 2888928
dump 125 

<hang>

So, I don't have a stack trace...

Drew

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