On Sun, 11 Jul 2021 07:28:48 -0000 "edmond pilon" <edpil02@xxxxxxxxx> wrote: > I noticed that all rawhide kernels are built with debugging mode and > may produce issues (slow-down or freeze) . > Only rc releases seems to be nodebug. Thanks for your help. It would make sense. There is a greater chance of race conditions, and out of sync conditions, if the speed disparity between various asynchronous processes is altered. I haven't tried it yet, but it looks promising. Every 5.14 kernel has the kernel oops when it boots, but the 5.13 kernel, which is nodebug, didn't show them. As far as I know, there is no way to pass a flag to systemd to tell it to boot things in sequential order. That would be slower, but would never have timing problems. I checked, and because 5.14 is so early in its cycle, it has no nodebug kernels available yet. What I've found works is to let the kernel boot, and then let it finish up housekeeping before doing anything. That seems to let all the disparate parts of the kernel sync up. I tried that with the latest 5.14 kernel, 20210709, and even though it had the kernel oops during boot, I was able to successfully start X. I am running it as I type this, and it seems to be working fine. I normally run custom compiled rawhide kernels tuned to my hardware. In those I turn debugging off. I haven't been able to build one for 5.14 yet because of a problem in the build process. I will try again with the 20210709 kernel because it seems the fix for the error is in that package. _______________________________________________ test mailing list -- test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to test-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/test@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure