Manoj, How reproducible is this? Did you try multiple times? Did you only see this on cosmic?
I haven't been able to see this on an LPAR. This is certainly specific to Power9, by the stack trace, as it involves the power9 idle driver. Still, I haven't found anything on new kernels that seem to fix anything like this, so it's possible newer releases are still affected. On the other hand, there doesn't seem to be anything here that looks specific to kdump. Maybe the use of nr_cpus=1 or a kernel that is kexec'ed. So, it would be interesting to try these as well. Finally, if you can reproduce it, we should coordinate, so we turn xmon on and I can grab the system and take a look. Thanks. Cascardo. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1832388 Title: [power9] [Cosmic] kernel panic while testing kdump To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-systems/+bug/1832388/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
