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SubjectRe: Bug fix for pvrusb2 driver [was: Re: Kernel 2.6.26.5 -> 2.6.27.2 [USB REGRESSION] (USB -> D_STATE)]


On Mon, 20 Oct 2008, Mike Isely wrote:

> On Mon, 20 Oct 2008, Justin Piszcz wrote:
>
>>
>>
>> On Mon, 20 Oct 2008, Mike Isely wrote:
>>
>>>
>>> There's already a patch coming up through v4l-dvb that should remove the
>>> need for the reset completely for the pvrusb2 driver. The reset had
>>> been there as "chicken soup" previously - it didn't hurt but its
>>> utility wasn't really that great at the time. Now that it is hurting,
>>> I just removed it.
>>>
>>> -Mike
>>>
>>
>> Should I wait for the patch coming up through v4l-dvb or test Alan's patch?
>> 2.6.27.2 has quite a few issues:
>>
>> 1. xfs is broken w/barrier (there is a patch for this)
>> 2. usb hangs (patch below)
>> 3. abit-guru (comsetic issue only, doesn't find mobo) (there is a patch for
>> this now as well)
>>
>> So I am sticking with 2.6.26.5 right now, let me know if you need me
>> to test Alan's patch to see if it fixes the issue.
>
> I'm sorry I didn't post my patch immediately in my previous response.
> It is however posted as a link in a followup, and for the record here it
> is again:
>
> http://linuxtv.org/hg/~mcisely/pvrusb2/rev/0bb411d8d2e4
>
> I have tested it, and it works as expected. I've done all I can
> according to the process there to ready it for kernel inclusion and I've
> asked in my pull request there to get this patch into the next 2.6.27.x
> stable release.
>
> The driver really didn't "need" the reset anyway, and so from where I'm
> sitting the simplest thing is just to remove it which is what my patch
> does. (I had put in that reset a long time ago when working on
> improving hardware stability. I had never positively established that
> this actually helped during initialization, but it didn't hurt either so
> I left it in place. Now that it is causing pain, it's best just to get
> it out of there.) I don't see much point in testing Alan's patch.

Ok, so the following patche are what I have applied to 2.6.27.2:

1. http://linuxtv.org/hg/~mcisely/pvrusb2/rev/0bb411d8d2e4

--

1. aw9d-max-dmi-detection.diff
2. pvrusb2-hdw.patch
3. xfs-fix-remount-rw-with-unrecognized-options.patch

Rebooting 2.6.27.2 with applied patches (all 3) and will check to make
sure everything is back to normal.

Done, after reboot with the [3] applied patches above, it has fixed all
the problems I was having.

Justin.


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