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Re: [PATCH wireless-2.6] rt2x00: fix rmmod crash

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On Mon, May 30, 2011 at 11:52 AM, Stanislaw Gruszka <sgruszka@xxxxxxxxxx> wrote:
> On Mon, May 30, 2011 at 08:24:12AM +0200, Gertjan van Wingerde wrote:
>> On 05/29/11 22:42, Stanislaw Gruszka wrote:
>> > On Sun, May 29, 2011 at 06:48:13PM +0200, Gertjan van Wingerde wrote:
>> >> On 05/29/11 12:45, Stanislaw Gruszka wrote:
>> >>> Do not destroy workqueue, which still can be used by autowakeup_work,
>> >>> before ieee80211_unregister_hw() is called.
>> >>>
>> >>> Signed-off-by: Stanislaw Gruszka <stf_xl@xxxxx>
>> >>
>> >> Could you add some details of the crash here, e.g. the stack trace of when this occurs, so that
>> >> we can understand what is exactly happening that is causing the crash, for our education.
>> >
>> > Crash is in workqueue code in interrupt context, there is no indication about rt2x00 blame in
>> > the calltrace, but crash happen directly after rmmod rt73usb, here is a photo:
>> > https://bugzilla.kernel.org/attachment.cgi?id=59992
>>
>> OK. Thanks for the info.
>>
>> Could you create a v2 of the patch that:
>> 1. Includes a reference to the bugzilla entry that the patch is resolving.
>
> It does not solve the bugzilla,
> https://bugzilla.kernel.org/show_bug.cgi?id=32132
> I put image there, because of temporally lack of opportunity to put
> it in some better place. Sorry.

Ah, OK. That got me confused.

>
>> 2. Cc's the stable team.
>
> It's not stable fix, this bug was introduced currently by
>
> commit 1c0bcf89d85cc97a0d9ce4cd909351a81fa4fdde
> Author: Ivo van Doorn <ivdoorn@xxxxxxxxx>
> Date:   Sat Apr 30 17:18:18 2011 +0200
>
>    rt2x00: Add autowake support for USB hardware
>

I cannot check it right now, but that patch is not yet included in
wireless-2.6, which
you indicate (in the email subject) as being the target for this patch.
Which tree do you want this patch to be applied to?

---
Gertjan
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