Bugzilla – Bug 1137512
Boot hangs after kernel upgraded to 4.12.14-lp151.28.4
Last modified: 2019-06-18 20:18:35 UTC
Created attachment 807017 [details] Screenshot of failing rescue mode boot. I have a MacBook Pro running Leap 15.1. It recently received a kernel upgrade, so therefor has a couple of kernels in the grub boot menu: * 4.12.14-lp151.27 (older) * 4.12.14-lp151.28.4 (current default) The older "4.12.14-lp151.27" version which I can still select from the grub menu boots perfectly. The newer "4.12.14-lp151.28.4" version fails to boot the system correctly. Part way through booting the system appears to hang. The system does not get to the point of prompting me for the LVM encryption password[1]. If I boot this failing version into rescue mode, I see text output during boot, which stops after the line: "[ 4.266607] fb: switching to nouveaufb from EFI VGA" (See attached screenshot.) (I will follow up with an attachment showing dmesg output of a successful boot with the older "4.12.14-lp151.27" kernel.) ---- For the time being I can continue to select the older kernel from the Grub menu to keep my system usable. However a fix would be nice of course. Are there RPMs available for the kernel versions between "4.12.14-lp151.2" and "4.12.14-lp151.28.4" that I could use to bisect the issue? ---- 1: My system has all partitions except the EFI partition inside an encrypted LVM partition. During normal boot I normally see Grub prompt me for a password (presumably to access /boot), then the Grub boot menu, then a further prompt for the same LVM password when the kernel is booting (this one is usually a bit more graphical looking than the Grub one).
Created attachment 807018 [details] 4.12.14-lp151.27 successful boot dmesg extract When booting with the older working "4.12.14-lp151.27" kernel, this is the output of "dmesg | grep -C 5 'nouveau'"
This is possibly related to: https://bugzilla.opensuse.org/show_bug.cgi?id=1137067
This and bug 1137067 look like duplicates of an older bug 1136978 to me. I believe the kernel developer tiwai@suse.com responsible for most backports going into kernel went on vacation shortly after 15.1 release, and hopefully this coming Monday we can expect to see a response from him, but that soon would be only a one week vacation.
Yes, very much likely the dup. Please test the kernel in the suggested bug entry. *** This bug has been marked as a duplicate of bug 1136978 ***
I can confirm that 4.12.14-lp151.28.7 boots perfectly.