Here are the steps I used to reproduce: #if using proposed pocket kernel https://wiki.ubuntu.com/Testing/EnableProposed
#Need to enable deb-src for proposed/updates for this work sudo apt update $ sudo apt-get source linux #After source is pulled, build and run ftrace selftests $ sudo make -C linux-5.4.0/tools/testing/selftests TARGETS=ftrace run_tests I also tested on Ubuntu-5.4.0-70.78 and saw similar behavior with soft lockups, but have yet to replicate the crash. Though I don't feel I have evidence to indicate this is a kernel regression. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1922387 Title: BUG: kernel NULL pointer dereference, address: 0000000000000050 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1922387/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
