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Date: Tue, 5 Apr 2005 10:39:44 -0700
From: Kris Kennaway <kris@obsecurity.org>
To: "Thomas E. Zander" <riggs@rrr.de>
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cc: current@freebsd.org
Subject: Re: Panic in 5.4 as of today
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On Tue, Apr 05, 2005 at 09:42:21AM +0200, Thomas E. Zander wrote:
> On Mon, 04. Apr 2005, at 14:46 -0700, Kris Kennaway wrote
> according to [Re: Panic in 5.4 as of today]:
>=20
> > > #51 0xc0547e1b in sched_switch (td=3D0x1d, newtd=3D0x81ef50c, flags=
=3DCannot access memory at address 0xbfbfed28
> > > ) at /usr/src/sys/kern/sched_ule.c:1300
> >=20
> > 1) Problems with FreeBSD-STABLE should go to the freebsd-stable@
> > mailing list
>=20
> Yes, I know. Just thought that I should report to current because...
>=20
> > 2) ULE is known to still have bugs.  Jeff is now aware of them, so
> > hopefully he'll be able to come up with a fix.
>=20
> ...the crash is - as you pointed - ULE related which isn't completely
> "stable" right now and sched_ule.c differs from stable to current by
> only one commit. I'll see if I can reproduce this crash later with
> the latest ULE from current.

That also has known panics.  See if you can reproduce it with 4BSD, to
rule out the scheduler as a contributing factor.

Kris

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