Re: Problem with a SunFire V120 -- Kernel panics when trying to install
On Tue, Feb 9, 2010 at 8:53 AM, Jurij Smakov <jurij@wooyd.org> wrote:
> On Fri, Feb 05, 2010 at 09:10:04AM -0500, Yan Morissette wrote:
>> Every single time I try to install Debian with the sparc netboot image
>> (Of course, I'm using latest), after one to a few dialogs (usually
>> right after selecting country, sometimes after locale and sometimes
>> after DHCP config) the V120 crashes with the following being sent out
>> the LOM port:
>>
>> [ 254.915075] Unable to handle kernel NULL pointer dereference
>> [ 254.915075] Unable to handle kernel NULL pointer dereference
>> [ 255.109349] tsk->{mm,active_mm}->context = 0000000000000ad8
>> [ 255.109349] tsk->{mm,active_mm}->context = 0000000000000ad8
>> [ 255.302290] tsk->{mm,active_mm}->pgd = fffff8001d838000
>> [ 255.302290] tsk->{mm,active_mm}->pgd = fffff8001d838000
>> [ 255.486760] Kernel panic - not syncing: Aiee, killing interrupt handler!
>> [ 255.486760] Kernel panic - not syncing: Aiee, killing interrupt handler!
>> [ 255.707837] Press Stop-A (L1-A) to return to the boot prom
>> [ 255.707837] Press Stop-A (L1-A) to return to the boot prom
>>
>> I tried searching the mailing lists and google, the only thing I've
>> found points to this being about usb-storage, but I have no idea how
>> to disable this or fix this problem.
>
> It's a bit strange that the messages do not include any information on
> the address where NULL pointer dereference takes place, without it
> it's pretty hard to tell what happens. If you are able to return to
> the PROM 'ok' prompt after these messages, you can try to get a stack
> trace using 'ctrace' and register dump using '.registers' commands. If
> they are reproducible from one crash to another, then we should be
> able to track down the location of the crash using it.
Any ideas how to get to that prompt? How would you do that on a pc at keyboard?
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