Here it is 2017-07-20 18:06 GMT+03:00 Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>: > On 20.07.2017 17:43, Yaroslav Isakov wrote: >> >> Hello everyone! I saw this thread some months ago, but do not know how >> to properly reply to it. I have the same problem, and it's just not >> few messages - it was about 40k messages in 10 minutes. No functional >> of my USB device (which is CCID USB token) is broken, just enormous >> amount of spam in the logs. I'm on 4.12 kernel, but I've seen this >> error on 4.11 and 4.9. Could this problem be caused by a bug in e.g. >> libusb, not a device itself? >> -- > > > I'd start by looking at xhci, can you take xhci traces of this? > > 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 > > and then send me the content of > /sys/kernel/debug/tracing/trace > > I'll be away for a couple of weeks, so next response might take some time > > -Mathias > >
Attachment:
usb.trace.gz
Description: GNU Zip compressed data
