system sporadically hangs on shutdown after switching to WITH_NEW_XORG

[Michiel Boland]

On 06/16/2013 19:46, Konstantin Belousov wrote:
> On Sun, Jun 16, 2013 at 07:12:33PM +0200, Michiel Boland wrote:
>> On 06/16/2013 17:37, Konstantin Belousov wrote:
>> [...]
>>> I do not see anything related to i915 in the core.txt you provided.
>>>
>>> Next time the machine hangs, start with the output of ps command from
>>> ddb and 'show allpcpu', together with 'alltrace'.
>>>
>>
>> Ok, I captured 'ps', 'show allpcpu' and 'alltrace' from a stuck shutdown. I've
>> appended it to my core.txt. (See previous e-mail.) (Note that the ddb commands
>> are from a different session - so the ddb output may not match with the kgdb
>> output.)
>>
>
> Hm, how do you initiate the shutdown ? Show the exact command.
> Also, from the same moment of the hung system, enter the ddb and
> again do ps, alltrace and 'x rebooting'.
>

The exact command to generate the hangs from which I created the reports was

'shutdown -r now'

FWIW - the saved core from the ddb-induced panic has

(kgdb) print rebooting
$1 = 1