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Date:      Fri, 19 Mar 1999 16:33:25 -0800 (PST)
From:      Doug Ambrisko <ambrisko@whistle.com>
To:        ath@niksun.com (Andrew Heybey)
Cc:        freebsd-current@FreeBSD.org
Subject:   Re: deadlock in 3.1-RELEASE
Message-ID:  <199903200033.QAA10236@whistle.com>
In-Reply-To: <199903192159.QAA15741@stiegl.niksun.com> from Andrew Heybey at "Mar 19, 99 04:59:17 pm"

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Andrew Heybey writes:
| When the deadlock does occur, "ps" (in ddb) says that there are many
| processes in vmwait.  The pagedaemon is in an inode wait.  The stack
| trace is in default_halt() (which I assume just means that there are
| no runnable processes).  The system is not short of memory (unless
| "short of memory" means that it is attempting to use it all as a disk
| cache).
| 
| A search of cvs-commiters for "vmwait deadlock" did not reveal (to my
| ignorant eye, anyway) any fixes to -current that would apply to this
| problem.

I have an environment that triggered this in less then 1/2 hour.  Julian
with the help of his friends (ie Matt & Alan) have brought in some changes
from -current that got rid of my problem.  Getting the latest RELENG_3
stuff should fix it.

My processes got stuck on vmwait.

Doug A.


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