Subject: Re: pmap trap in -current?
To: mike smith <miff@spam.frisbee.net.au>
From: Jason Thorpe <thorpej@nas.nasa.gov>
List: port-hp300
Date: 04/24/1997 10:41:36
On Thu, 24 Apr 1997 18:16:34 +0930
mike smith <miff@spam.frisbee.net.au> wrote:
> Hmm, just built a new -current kernel, and under it was
> rebuilding the bootblocks, when I hit a trap in
> pmap_enter_ptpage. It looked like a dereference of a null
> pointer. Unfortunately, I had NFS filesystems mounted,
> so I had to hard-reset to get it to reboot.
>
> Useful numbers :
>
> fault address 0xc
> fault pc pmap_enter_ptpage+0x776
>
> (should I be filing this as a PR? port-m68k?)
Please file a bug report for port-hp300. Also, if you built the kernel
with full debugging symbols (i.e. "makeoptions DEBUG="-g""), I may
have you do a few things... (did you get a crash dump?)
Hmm... Taking a quick look, pmap_enter_ptpage+0x776 is in pmap_bootstrap().
I'm not sure how that could have happened... I assume you got that info
from DDB? A backtrace and the _exact_ info printed by the trap handler
would be good...
Jason R. Thorpe thorpej@nas.nasa.gov
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