Test-case (kmod-stopper.c) --------- $ sudo apt-get -y install gcc make libelf-dev linux-headers-$(uname -r)
$ touch Makefile # fake it, and use this make line: $ make -C /lib/modules/$(uname -r)/build M=$(pwd) obj-m=kmod-stopper.o modules $ echo 9 | sudo tee /proc/sys/kernel/printk $ sudo insmod kmod-stopper.ko <watch console for messages> <it either hangs / finishes> $ sudo rmmod kmod-stopper ** Attachment added: "kmod-stopper.c" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821259/+attachment/5248313/+files/kmod-stopper.c -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821259 Title: Hard lockup in 2 CPUs due to deadlock in cpu_stoppers To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1821259/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
