Re: Parallel port printing crashes 7.0 system

P.U.Kruppa wrote:
> On Mon, 24 Sep 2007, Remko Lodder wrote:
> 
>> On Mon, Sep 24, 2007 at 11:50:37AM +0200, P.U.Kruppa wrote:
>>>  On Mon, 24 Sep 2007, Kris Kennaway wrote:
>>>
>>>> P.U.Kruppa wrote:
>>>>> Hello,
>>>>> I use a HP Deskjet 990 Cxi via parallel port with cups and hpijs 
>>>>> driver on
>>>>> FreeBSD pukruppa.net 7.0-CURRENT FreeBSD 7.0-CURRENT #0: Fri Sep 21
>>>>> 16:52:59 CEST 2007 amd64
>>>>> When I try to print a little bit more complex documents 
>>>>> (OpenOffice, pdf)
>>>>> my System will crash.
>>>>> On my root terminal there will be a long list of
>>>>> lpt0: [ITHREAD]
>>>>> lpt0: [GIANT-LOCKED]
>>>>> lpt0: [ITHREAD]
>>>>> [...]
>>>>> lines, then some dumping activity and a reboot.
>>>>> I upgraded to 7.0 last week, so all I can say is: everything was 
>>>>> fine with
>>>>> 6.2 .
>>>>> Please tell me if you need more information.
>>>>
>>>> Well yeah, how about e.g. the actual details from the panic?
>>>  How do I get them?
>>>  Do I have to recompile my kernel (I put off debugging and Witness 
>>> Options)?
>>
>> Hello,
>>
>> Check 
>> http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html 
>> for
>> more information.
>>
>> Thanks
>>
>> -- 
>> Kind regards,
>>
>>     Remko Lodder               ** remko_at_elvandar.org
> Sorry, from developer's handbook I guess I should find a vmcore.N file. 
> There isn't any. My parallel printing attempts end up in some kind of 
> single user mode on the root terminal with a
>     db>
> prompt. Can I do anything with that?

Yes, that's the DDB prompt that the documentation describes.  It tells 
you how to trigger the dump and obtain other important debugging.

Kris