Been seeing this sporadically since 17.04 upgrade. I have an NVIDIA GeForce GT 740 running the proprietary driver, so it isn't nouveau in my case. Only common activity that sticks in my mind is that it seems to have occurred for me when (or shortly after) doing something with VirtualBox - starting a VM, doing something in VM. VM is set to hog 2 of my 4 cores.
Doesn't always happen - right now, usual desktop/apps and Windows7 VM seem to be running fine. I think I've seen it 3-4 times in 1.5 weeks of light usage. When it does happen, I still have mouse, but everything else is hit or miss - sometimes I can alt-tab, sometimes not, sometimes taskbar thingy pops up but does nothing, sometimes I can switch apps. I think each time there was a momentary audio screwup, but then the audio picks up and plays fine. Linux FrankenMac.walterhome.net 4.10.0-21-generic #23-Ubuntu SMP Fri Apr 28 16:14:22 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux Running Kubuntu with the PPA for more up-to-date KDE stuff, forget the name. Please let me know anything I can do to help track this down or debug it, I got time. :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1530405 Title: NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kerneloops:814] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1530405/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
