Date: Wed, 14 Jan 2004 00:32:30 +0300 (MSK) From: Igor Sysoev <is@rambler-co.ru> To: Doug White <dwhite@gumbysoft.com> Cc: freebsd-current@freebsd.org Subject: Re: 5.2-R panic: bad pte Message-ID: <Pine.BSF.4.21.0401140026430.72563-100000@is> In-Reply-To: <20040113113140.Y63732@carver.gumbysoft.com>
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On Tue, 13 Jan 2004, Doug White wrote:
> On Tue, 13 Jan 2004, Igor Sysoev wrote:
>
> > > > I've cvsuped the sources 5.2-BETA to 5.2-RELEASE. While rebuilding
> > > > the system (make -j 3 buildworld) on 5.2-RELEASE kernel I've got the
> > > > following panic:
> > > >
> > > > panic: bad pte <<< this is the problem
> > > > cpuid = 0;
> > > > boot() called on cpu#0
> > >
> > > Hardware description?
>
> In a nutshell... 2x2.8GHz xeons in a serverworks board of some
> construction. I have an IBM behind me here that while I haven't tested a
> full buildworld on, I did install a few times and didn't get any panics.
> Got a broken keyboard though :)
>
> I'm not aware of any outstanding pte-based issues. Perhaps the system has
> bad memory or processor?
I do not think that it's hardware problem.
And I think that "panic: sleeping thread owns a non-sleepable lock" is
the problem and "panic: bad pte" is a side effect because there is a single
panic in back trace and this panic() has the same message:
(kgdb) bt
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240
#1 0xc051067d in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:372
#2 0xc0510a4e in panic () at /usr/src/sys/kern/kern_shutdown.c:550
#3 0xc053595b in propagate_priority (td=0xc8252780)
at /usr/src/sys/kern/subr_turnstile.c:176
[ ... ]
(kgdb) up 3
0xc053595b in propagate_priority (td=0xc8252780)
at /usr/src/sys/kern/subr_turnstile.c:176
176 KASSERT(!TD_IS_SLEEPING(td),
(kgdb) l
171 * first thread to grab a slock of a sx lock. In that case
172 * it is possible for us to be at SSLEEP or some other
173 * weird state. We should probably just return if the state
174 * isn't SRUN or SLOCK.
175 */
176 KASSERT(!TD_IS_SLEEPING(td),
177 ("sleeping thread (pid %d) owns a non-sleepable lock",
178 td->td_proc->p_pid));
179
180 /*
(kgdb)
Igor Sysoev
http://sysoev.ru/en/
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