Hi Joe, I did verify this again with the below kernels and results: - 4.8.0-22 16.10 kernel - kdump through NMI on 4 CPU cores doesn't work - VM gets stuck and there is no crash file nor a reboot. - 4.9.0-040900RC8 kernel from ubuntu mainline - kdump through NMI works fine when using single core or SMP *with 4 cores*. Using 8 cores on this kernel, triggering the crash will result in the same bad behavior as from the GA kernel. I don't see any crash messages on the console, and the VM will just hang. Will have to do more debugging on this new pattern.
All tests have been done with crashkernel=512M and 2GB RAM for the VM. 4.9 also just got released, as of 11/12. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1630924 Title: Kdump through NMI SMP and single core not working on Ubuntu16.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1630924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs