Hey, Could you please collect the stack traces of the kworker process while the issue happens?
1) Once it starts, get its PID (eg, 86069) and run: $ pid=86069; while sleep 1; do ts="$(date +'%F-%H-%M-%S')"; sudo cat /proc/$pid/stack > /tmp/stack.$pid.$ts; done 2) Once it stops, press ctrl-c to kill the collection, and run: $ tar cf /tmp/lp1896519-stacks.tar /tmp/stack.* And upload the tar file to this LP bug. Thanks, Mauricio -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896519 Title: kworker consumes 80% of CPU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1896519/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
