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Re: compat-wireless-2012-04-04 - rmmod mac80211 and PC freeze

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W dniu 6 kwietnia 2012 07:16 użytkownik Janusz Dziedzic
<janusz.dziedzic@xxxxxxxxx> napisał:
> W dniu 6 kwietnia 2012 07:00 użytkownik Janusz Dziedzic
> <janusz.dziedzic@xxxxxxxxx> napisał:
>> W dniu 5 kwietnia 2012 15:01 użytkownik Johannes Berg
>> <johannes@xxxxxxxxxxxxxxxx> napisał:
>>> On Thu, 2012-04-05 at 14:35 +0200, Janusz Dziedzic wrote:
>>>> Hello,
>>>>
>>>> I am using: compat-wireless-2012-04-04
>>>>
>>>> I am doing such test:
>>>> - insmod compat.ko
>>>> - insmod cfg80211.ko
>>>> - insmod mac80211.ko
>>>>
>>>> After that:
>>>> - rmmod mac80211
>>>>
>>>> And have PC freeze.
>>>> Linux uw000950 2.6.35-32-generic #67~lucid1-Ubuntu SMP Tue Mar 6
>>>> 17:48:20 UTC 2012 x86_64 GNU/Linux
>>>
>>> Works for me, but on 3.1.0.
>>>
>>>> Any idea what could be wrong, how to debug in case of such freeze?
>>>
>>> Not really. You could try the same thing from a console, rather than an
>>> X terminal window (that I'm guessing you're using since you saw no
>>> further info) and you may see some more details?
>>>
>>> johannes
>>>
>>
>> Seems when run from console I see:
>> Kernel panic - not syncing: Fatal exception in interrupt
>> BUG: scheduling while atomic: rmmod/15474/0x10008803
>>
>> Next a lot of information connected with dump.
>>
>>
>
> After second try:
> BUG: unable to handle kernel paging request at ffffffff98d60d20
> IP: update_curr+0x134/0x1e0
> Thread overran stack, or stack corrupted
> Process rmmod
>

Issue not reproducible with compat-wireless-2012-03-18.
Seems introduced in compat-wireless-2012-04-03.

BR
Janusz
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