[U-Boot] [PATCH v2] test: ums: Add sleep before unmount directory

[Wolfgang Denk]

Dear Lukasz,

In message <20141112152949.1fe6ce3c at 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

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