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Date:      Thu, 03 Oct 1996 13:55:00 -0700
From:      Julian Elischer <julian@whistle.com>
To:        current@freebsd.org
Subject:   Re: HELP!! kernel deadlock..
Message-ID:  <32542824.64880EEB@whistle.com>

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Last night our mail was screwd up accidentally
anyone sending mail to me would have
received bouced messages.

I see terry's ansewer to this mail and her refers to
other answers

if you send a response, please resend..
ESPECIALLY
if you know how to get gdb in kernel debugging mode
to show stacktraces from other processes. I want to hear
from you!

julian


a recap on the problem:

 Take the following 3 processes:
> 
> proc N, with a lock on file / (inode 2)
>             wchan of that inode, waitstring of "ufslk2"
> is waiting for inode for /mnt in the root filesystem (inode M)
> 
> proc N+1 with a lock on the inode M (/mnt in root filesystem)
> is waiting for inode for / (inode 2) in  the mounted filesystem /mnt
> it is showing "uihget" as a waitstring.
> 
> proc N+2 with a lock on inode 2 of the mnt filesystem (/ of that filesystem)
> is waiting for the inode for / and is showing "ufslk2" as a waitstring.
> 
> It is my suspicion that process N+2 may be trying to unmount /mnt
P.S. Terry it is NOT running NFS.. NFS is not even loaded.



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