Re: Oops in kernel 2.6.32 when unloading ipw2100 (device_pm_remove+0x16)

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reinette chatre ha scritto:
> On Mon, 2009-11-09 at 01:31 -0800, Daniele C. wrote:
> 
>> starting with kernel 2.6.32 I can no more unload the ipw2100 module, I get the attached oops.
>>
>> Is this a known bug? Any patch around or possibly in kernel patches queue?
> 
> This looks like duplicate of
> http://thread.gmane.org/gmane.linux.kernel/901971, which is fixed with
> patch http://thread.gmane.org/gmane.linux.kernel/901971/focus=8445
> Unfortunately this patch caused a regression, see
> http://thread.gmane.org/gmane.linux.kernel.wireless.general/42112 and it
> was reverted.
> 
> Perhaps you can try out that patch directly until the issue is resolved?
> 
Hi Reinette,

thanks for your reply. None of those hunks can patch the latest kernel (2.6.32-rc6); after close inspection they all seem to have been merged, except the one for ipw2200.c perhaps (which anyway is not relevant to my ipw2100).

I would say this is a totally different and separate bug; does anybody knows what is called at device_pm_remove+0x16 ? I cannot guess where the bug is, it vaguely looks like a bad/non-uniform free mechanism.

I also wonder why nobody else experienced this up to now (maybe this ipw2100 hardware is getting rare nowadays).

Thanks,
- --
  Daniele C.

> Reinette
> 
> 
> 

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