Re: system hangs on shutdown while on wireless (ath) (Was: drm2 and the kernel messages on shutdown)

Hm, find the revision where I committed the PCIe powersave fixes to
ath_hal/ar9002/ar9285_attach.c and undo them? See if that has any
effect?


adrian


On 18 July 2012 02:57, Ruslan Mahmatkhanov <cvs-src_at_yandex.ru> wrote:
> Ruslan Mahmatkhanov wrote on 18.06.2012 13:10:
>>
>> Ivan Klymenko wrote on 18.06.2012 13:02:
>>>
>>> В Mon, 18 Jun 2012 12:35:33 +0400
>>> Ruslan Mahmatkhanov <cvs-src_at_yandex.ru> пишет:
>>>
>>>> Good day,
>>>>
>>>> since switching to new drm code (starting at April if I recall
>>>> correctly) I'm experiencing sporadic laptop hangs when choose the
>>>> shutdown command in UI (gnome) environment. The hdd led isn't
>>>> blinking but the laptop is still up. In such cases I forced to
>>>> shutdown it by pressing power off button, but at the next system
>>>> start it running filesystem checks (yes, with journal but some time
>>>> only full fsck is able to fix that). What I'm asking for is - when
>>>> there some sysctl or boot loader option will be available to turn on
>>>> kernel messages on shutdown? I really want to know on what it hanging
>>>> on. I didn't bothered with this while it was available as third-party
>>>> patch, but since it is now in -current and enabled by default, I
>>>> think this feature should be available. Thanks.
>>>>
>>>> PS. I'm now subscribed to current_at_. So do not need to approve my
>>>> previous message, that's waiting for moderator approval.
>>>>
>>>
>>> Dear Ruslan.
>>> Your problems hang your laptop is not associated with the transition to
>>> drm2.
>>> And you can see this - when the downgrade to the SVN revision r236313
>>>
>>> Your problems are now committing to this
>>> http://svnweb.freebsd.org/base?view=revision&revision=236317
>>>
>>> You can check it and make sure my right.
>>>
>>> Good luck
>>
>>
>> Thanks Ivan, I'll check it out.  But the request in subject line is
>> still valid for me, because the current state make me feels like..
>> uhmm.. a blind kitten :)
>
>
> Hi, I still didn't tried to revert this change to check if it the reason.
> But I realized that I only got this issue when I'm on wireless. And I can
> 100% reproduce this. When using ethernet (re) - system shuts down just fine.
> When using wireless (ath) - it hanging forever.
>
> So it seems like ath deadlock or something (cc:ing Adrian). Would you please
> provide me with instructions on how to debug this, or what info should I
> provide to you to realize this. Thanks.
>
> ath0_at_pci0:37:0:0:       class=0x028000 card=0x1461103c chip=0x002b168c
> rev=0x01 hdr=0x00
>     vendor     = 'Atheros Communications Inc.'
>     device     = 'AR9285 Wireless Network Adapter (PCI-Express)'
>     class      = network
>
> My -current is from Sat Jul 14 12:15:20 2012 (svn #238449).
>
> --
> Regards,
> Ruslan
>
> Tinderboxing kills... the drives.
>
>