On 04.09.2018 16:14, Frank Wunderlich wrote:
Hi,
i got an info that my issue was caused by this commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=217491487c43892318c18b6dcafe33b6353efd40
Patch is in progress...
That patch has been there since 4.13
If 4.16 works for you then it's probably something else
is there another way to show more debug-messages?
i have a working 4.16-tree, maybe i can merge newer versions (go
forward from it instead of backwards).
xhci debugging can be added by:
mount -t debugfs none /sys/kernel/debug
echo -n 'module xhci_hcd =p' > /sys/kernel/debug/dynamic_debug/control
and tracing with: (before pressing keyboard key)
(mount -t debugfs none /sys/kernel/debug)
echo 81920 > /sys/kernel/debug/tracing/buffer_size_kb
echo 1 > /sys/kernel/debug/tracing/events/xhci-hcd/enable
after pressing key traces are found at:
/sys/kernel/debug/tracing/trace
-Mathias
