[Bug 1942952] Re: Kernel Call Trace on Secure Boot
*** This bug is a duplicate of bug 1955429 *** https://bugs.launchpad.net/bugs/1955429 ** This bug has been marked a duplicate of bug 1955429 watchdog: BUG: soft lockup - CPU#3 stuck for 25s! [swapper/3:0] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942952 Title: Kernel Call Trace on Secure Boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942952/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942952] Re: Kernel Call Trace on Secure Boot
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete => Expired -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942952 Title: Kernel Call Trace on Secure Boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942952/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942952] Re: Kernel Call Trace on Secure Boot
I downgraded to 20.04 LTS and 5.8 kernel. So far, it seems more reliable than the 5.11 kernel. The watchdog_thresh is default 10. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942952 Title: Kernel Call Trace on Secure Boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942952/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942952] Re: Kernel Call Trace on Secure Boot
The slow CPU (N5000 CPU @ 1.10GHz) may play a role in the watchdog soft lockup. You can increase the watchdog time and check whether the messages will go away and pop up less frequently: $ echo 20 | sudo tee /proc/sys/kernel/watchdog_thresh The above command will change the default (10) to 20 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942952 Title: Kernel Call Trace on Secure Boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942952/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942952] Re: Kernel Call Trace on Secure Boot
Please test latest mainline kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.14/amd64/ Headers are not needed. ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942952 Title: Kernel Call Trace on Secure Boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942952/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1942952] Re: Kernel Call Trace on Secure Boot
I disabled Secure Boot and same problem. Seems to happen reliably on cold boots. ** Attachment added: "dmesg with Secure Boot disabled" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942952/+attachment/5524215/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1942952 Title: Kernel Call Trace on Secure Boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1942952/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
