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Date:      Sat, 11 Jul 1998 10:46:49 +0200
From:      Stefan Eggers <seggers@semyam.dinoco.de>
To:        freebsd-hackers@FreeBSD.ORG
Cc:        Greg Lehey <grog@lemis.com>, seggers@semyam.dinoco.de
Subject:   Re: odd problems with AMD K6 
Message-ID:  <199807110846.KAA01112@semyam.dinoco.de>
In-Reply-To: Your message of "Sat, 27 Jun 1998 11:54:50 %2B0930." <19980627115450.O16259@freebie.lemis.com> 

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[Old but still unanswered as far as I saw.]

> > graphics that just came in.  The system froze, and rebooted.  The system
> > did dump core, however, and this is the result (using kgdb):
> >
> > IdlePTD 279000
> > current pcb at 25325c
> > panic: vref used where vget required
> > #0  0xf0116c5e in boot ()
> > (kgdb) bt
> > #0  0xf0116c5e in boot ()
> > #1  0xf0116f4a in panic ()
> > #2  0xf013cc07 in vref ()
> > #3  0xf01043d0 in iso_iget ()
> > #4  0xf010686a in cd9660_root ()
[...]

> > Again, I have not been able to reproduce this.  I've run the system
> > ragged since then, and it hasn't crashed a single time.
> 
> Doesn't look like hardware.  There have been some software problems in
> this area.  Do you still have the dump?

It is software.  See my PR kern/6981 on how to reproduce this with a
certain operations at the CD drive.  I got it all the time I did what
I describe there.

Stefan.
-- 
Stefan Eggers                 Lu4 yao2 zhi1 ma3 li4,
Max-Slevogt-Str. 1            ri4 jiu3 jian4 ren2 xin1.
51109 Koeln
Federal Republic of Germany

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