Re: [linux-usb-devel] speedtouch and/or USB problem (2.6.4-WOLK2.3and 2.6.5-rc3-mm4)

[Grzegorz Kulewski]

On Wed, 31 Mar 2004, Marc-Christian Petersen wrote:

> On Sunday 28 March 2004 00:51, Alan Stern wrote:
> 
> Hi Grzegorz,
> 
> > > When running modem_run on 2.6.4-WOLK2.3 it locks in D state on one of USB
> > > ioctls. It works at least on 2.6.2-rc2. I have no idea what causes this
> > > bug so I sent it to all lists.
> > > Please help if you can.
> > > Grzegorz Kulewski
> 
> > Try applying this patch:
> > http://marc.theaimsgroup.com/?l=linux-usb-devel&m=108016447231291&q=raw
> 
> Did this help Grzegorz?

No, it did not. This time I tried 2.6.5-rc3-mm4. Seems the patch was 
already applied in this release. modem_run did not lock (disk sleep state) 
in the same place, but it locked after writing synchronization succeded 
to system log. It seems that there is no kernel-stack-for-process-in-proc 
option in mm (Andrew, can you add it?), so there is no callstack.


but still thanks for your help
and looking for next :)


Grzegorz Kulewski

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