[Bug 218890] reset SuperSpeed USB device number 2 using xhci_hcd

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=218890

Mathias Nyman (mathias.nyman@linux.intel.com) changed:

           What    |Removed                     |Added
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                 CC|                            |mathias.nyman@linux.intel.c
                   |                            |om

--- Comment #5 from Mathias Nyman (mathias.nyman@linux.intel.com) ---
Would it possible to get xhci traces and logs? 

Alan pointed out that there's something odd with urb->actual_length 
values set by xhci driver.

Steps to take traces and logs:
mount -t debugfs none /sys/kernel/debug
echo 'module xhci_hcd =p' >/sys/kernel/debug/dynamic_debug/control
echo 81920 > /sys/kernel/debug/tracing/buffer_size_kb
echo 1 > /sys/kernel/debug/tracing/events/xhci-hcd/enable
echo 1 > /sys/kernel/debug/tracing/tracing_on
< Reproduce issue >
Send output of dmesg
Send content of /sys/kernel/debug/tracing/trace

trace file grows fast so please copy it as soon as possbile after issue is
reproduced.

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