Dear Lukasz,

In message <20141112152949.1fe6ce3c@amdc2363> you wrote:
> 
> > But this is a bug.  Papering over is not a good idea.  It should be
> > analyzed, reported, and finally fixed.
> 
> I've debugged the script with strace.

Thanks a lot for that!

> The problem is with umount() syscall:
...
> I need to debug the syscall in the kernel.

I have a gut feeling that this might be a problem somewhere with the
USB stuff that is involved here.  Maybe enabling some degug messages
for the USB subsystem gives some more information?

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
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