Re: [usbip-devel] page fault in usbip !!!

[Takahiro H. <hir...@us...>]

Hi,


> I could reproduce it easily.
> Your patch does not fix it, though.
> Should I submit kernel trace so that someone her could analyze it?
> If so, how?

Yes. Please send it to the list.
If it is too large, please send it to me directly.


Thanks,

Takahiro


2008/7/11 Jerome Warnier <jwa...@be...>:
> Le mardi 24 juin 2008 à 12:38 +0200, Jerome Warnier a écrit :
>> Ziemowit Zglinski wrote:
>> > Hello,
>> >
>> > I've found the issue. There is a race condition, when reading from the
>> > waitq_tx in the vhci_tx_loop task.
>> > The condition is far too complex to be really secure. Reducing it to a
>> > simple atomic_read did solve the problem.
>> >
>> > This case is quite rare,  but possibly could solve the "Kernel Oops on
>> > Debian Etch with XEN" issue,
>> > which was reported about one month ago. I attach the patch files to
>> > version 1.6  to reflect the modifications.
>> I just started back to work on this issue yesterday.
>> I will let you know if I can reproduce the problem or not, and I will
>> test your patch.
>
> I could reproduce it easily.
> Your patch does not fix it, though.
> Should I submit kernel trace so that someone her could analyze it?
> If so, how?
> My machine is also a dual-core one, so I can usually still access it
> through the network.
>
>> > Best regards to everyone,
>> > and special thanks to Takahiro Hirofuchi for the great driver!
>>
>> Thanks for caring.
>> >
>> >                           Ziemowit
>> [..]
>
> --
> Jérôme Warnier
> FLOSS Consultant
> http://beeznest.net
>
>
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