Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 7 Oct 2007 19:42:08 -0400
From:      Joe Altman <fj@panix.com>
To:        Hans Petter Selasky <hselasky@c2i.net>
Cc:        freebsd-questions@freebsd.org, freebsd-usb@freebsd.org
Subject:   Re: Kernel panic; fatal trap 12; on task 22, USB0: was Re: Moused issues?
Message-ID:  <20071007234208.GA5326@panix.com>
In-Reply-To: <200710071101.42353.hselasky@c2i.net>
References:  <20071006192650.GA23085@panix.com> <200710071101.42353.hselasky@c2i.net>

index | next in thread | previous in thread | raw e-mail

On Sun, Oct 07, 2007 at 11:01:41AM +0200, Hans Petter Selasky wrote:
> On Saturday 06 October 2007, Joe Altman wrote:
> > chthonic.com/crash-crash-crash
> 
> Hi,
> 
> Do you have "options KDB" in your kernel config file ?

Following your suggestion, I did try this; and there was no
change from kernel panic and reboot.

> http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug-options.html
> 
> You should get a prompt when it panics.

There was no prompt.

> Then you type in "bt" for backtrace. 
> Maybe you could take a picture of that. 

Personally, it's a bit embarassing to be so helpless that I am forced
to take a picture. I suppose if I could be certain about how to
compile bootblocks, I might be able to do something on the serial
console with a laptop.

But the one time I attempted that was a disaster. 

Is my speculation about the "...no dump device found..." correct? Is
it that swapon and multiuser has not occurred, and so there can occur
no dump to the swap space?

> Probably someone is accessing a NULL pointer.

If any more damage occurs, ISTM that my entire installation will be
accessing a NULL pointer; the following message is from the most
recent dmesg, and is new:

warning: KLD '/boot/kernel.old.bootable/drm.ko' is newer than the
linker.hints file

Since my hardware appears to not work with the available source, who
knows how that will go?


home | help

Want to link to this message? Use this
URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20071007234208.GA5326>