I have this as well. For me, this is always correlated with having Thunderbird or Firefox open.
Sometimes, I also see messages like this NMI watchdog: BUG: soft lockup - CPU#3 stuck for 23s! Can you say if these are superficial or not? In my kernel log, the freeze happened Apr 22 13:41:51 and I re-started on Apr 23 14:22:38. ** Attachment added: "kernel log bridging time before and after freeze" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1674838/+attachment/4867564/+files/kern.log-crash-20170422-1.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1674838 Title: kernel BUG at /build/linux- 7LGLH_/linux-4.10.0/include/linux/swapops.h:129 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1674838/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
