<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - kernel 4.15.x boot fails at kms" href="https://bugs.freedesktop.org/show_bug.cgi?id=105811#c28">Comment # 28</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - kernel 4.15.x boot fails at kms" href="https://bugs.freedesktop.org/show_bug.cgi?id=105811">bug 105811</a> from <a class="email" href="mailto:ahabig@umn.edu" title="Alec Habig <ahabig@umn.edu>"> Alec Habig</a> <pre>Interesting development here. I decided to try the latest drm-tip (4.17.0-rc4) and see what happens. It died: but looking at it harder, it seems my working drm-tip (4.16.0-rc7) had a much simpler .config file. I think the difference is I compiled the new one as root, which picked up all the config settings from my currently running fedora 4.14 kernel, while doing it as a normal user for 4.16 did not. Anyway - copying over the 4.16 .config into the 4.17 build area, and being conservative with all the new config optins the 4.17 build presents, it does boot again: although it does spend 30+seconds at the boot flailing: before succeeding rather than failing. So: something in fedora's kernel config is triggering my problem. So I can try bisecting kernel options till I find the specific troublemaker. There are a lot of them though. But: it's not just that. Hopefully the additional debugging info in the 4.17 dmesg (attached) offer clues. You can see the drm module having problems: I do not know the severity of the problems, just that it did the same "spend 30-odd seconds early in the boot timing out" problem as it does when it fails,even though it then succeeds (with a simpler .config).</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>