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

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