Date: Wed, 28 Jun 2000 09:00:02 -0700 (PDT) From: Andy Farkas <andyf@speednet.com.au> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/12758: idprio-related panic in -stable and -current Message-ID: <200006281600.JAA75299@freefall.freebsd.org>
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The following reply was made to PR kern/12758; it has been noted by GNATS.
From: Andy Farkas <andyf@speednet.com.au>
To: Jos Backus <Jos.Backus@nl.origin-it.com>
Cc: FreeBSD-gnats-submit@FreeBSD.ORG
Subject: Re: kern/12758: idprio-related panic in -stable and -current
Date: Thu, 29 Jun 2000 01:52:47 +1000 (EST)
This PR is comming up to its first year anniversary!
I just tried it on a 4.0-STABLE built Jun 28 2000 and got a "kernel trap
12 with interrupts disabled" followed by two(!) "Fatal trap 12: page fault
while in kernel mode" dumps. Reproducable.
It triggers when you kill the idprio'd process, which is a bit different
<from the original...
Doubtfully hardware, but my system is a 90MHz P54C with 32MB RAM, 1 ide
disk on MB controller, 1 8-bit 3c503.
On 22 Jul 1999, Jos Backus wrote:
> Date: 22 Jul 1999 08:59:22 -0000
> From: Jos Backus <Jos.Backus@nl.origin-it.com>
> To: FreeBSD-gnats-submit@FreeBSD.ORG
> Subject: kern/12758: idprio-related panic in -stable and -current
[snip]
> >How-To-Repeat:
>
> % primes 3 > /dev/null &
> [1] 306
> % primes 3 > /dev/null &
> [2] 307
> % su
> # idprio 31 -306
> # idprio -t -306
> # panic: remrq
> Debugger("panic") at ...
> db> trace
> Debugger(c01dba5b) at Debugger+0x38
> panic(c01c21fe,c012e00b2,c832a8c0,0,c012dfa4) at panic+0x74
> rem1(0,40000000,280ef774,bfbfd940,a) at rem1
> softclock(0,2f,2f,2f,a) at softclock+0xde
> doreti_swi() at doreti_swi+0xf
>
> Apparently this only happens when the CPU load is above normal, hence
> two instances of the primes program had to be started.
>
> >Fix:
>
> No idea.
>
>
> >Release-Note:
> >Audit-Trail:
> >Unformatted:
>
--
:{ andyf@speednet.com.au
Andy Farkas
System Administrator
Speednet Communications
http://www.speednet.com.au/
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