[Bug 220307] USB cannot submit urb disconnecting sound card

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=220307

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

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

--- Comment #2 from Mathias Nyman (mathias.nyman@linux.intel.com) ---
Any chance you could take xhci traces of this, with additional xhci dynamic
debug added.
It should show in detail every TRB queued to the ring, and each event for it.

Steps:
mount -t debugfs none /sys/kernel/debug
echo 'module xhci_hcd =p' >/sys/kernel/debug/dynamic_debug/control
echo 'module usbcore =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

The trace grows fast, so please try to copy it as soon as possible
after issue is reproduced.

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