Subject: Re: kernel page fault trap
To: Rui Paulo <rpaulo@fnop.net>
From: Steve Blinkhorn <steve@prd.co.uk>
List: port-i386
Date: 03/17/2006 15:41:28
>
> Steve Blinkhorn <steve@prd.co.uk> writes:
>
> > Can someone interpret for me please. One of my machines, running 2.0
> > GENERIC, has started to misbehave. Sometimes it freezes when running
> > X. Sometimes it throws an error during the boot process, of which
> > this is an example:
> >
> > kernel: page fault trap, code=0
> > Stopped at netbsd:Xdoreti+ox8a: mov0(%esp),%gs
> >
> > If it boots successfully, we don't seem to hit errors unless we run X.
> >
> > I have next to no experience of such errors in 25 years of running
> > Unix systems; my initial guess is there may be a fault in physical
> > memory.
> >
> > Any suggestions?
>
> The backtrace from ddb would be useful. Try writing 'tr' at the ddb
> prompt.
>
> --
> Rui Paulo <rpaulo@{NetBSD{,-PT}.org,fnop.net}>
>
>
Typically:
Xdoreti at netbsd: Xdoreti+0x8a
---interrupt---
0x30
But I am now getting more variety, including a:
---interrupt---
Bad frame pointer: 0xc0a78818
0x3431:
I also had a series of attempted boots where the device probe
sequence stopped with a long backtrace with references either to
a "hardclock" or what looked like shorthand for the real-time
clock.
--
Steve Blinkhorn <steve@prd.co.uk>