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Date: Fri, 10 Dec 2004 17:10:32 -0800
From: Kris Kennaway <kris@obsecurity.org>
To: Doug White <dwhite@gumbysoft.com>
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cc: Michal Suszko <freebsd@dry.pl>
Subject: Re: deadlocks in recent 6-CURRENT
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On Fri, Dec 10, 2004 at 04:46:09PM -0800, Doug White wrote:
> Oops, ignore me. Didn't see that witness was enabled afterwards.
>=20
> > > PREEMPTION is on
>=20
> This is known to cause problems. You enable it at your own risk.

Only on ULE, I thought.

> > > WITNESS show two kinds of LOR's:

If you're getting LORs, chances are good you'll also get deadlocks
(that's why lock order reversals are bad).

Kris

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