http://bugzilla.opensuse.org/show_bug.cgi?id=1098009 http://bugzilla.opensuse.org/show_bug.cgi?id=1098009#c1 --- Comment #1 from David Kronlid --- Created attachment 774324 --> http://bugzilla.opensuse.org/attachment.cgi?id=774324&action=edit Error message second boot -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1098009 http://bugzilla.opensuse.org/show_bug.cgi?id=1098009#c2 Andreas Stieger changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P0 - Crit Sit |P5 - None Summary|Security update patch |kernel-default-4.4.136-56.1 |openSUSE-2018-650 with |DWARF2 unwinder stuck at |kernel-default-4.4.136-56.1 |retint_user+0x8/0x1d |results in an unusable | |system | --- Comment #2 from Andreas Stieger --- (In reply to David Kronlid from comment #0)

Luckily grub2 still works and snapper rollback made it possible to revert to a previous state before patch.

As the previous kernels are usually retained (multiversion), you could have just booted that. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1098009 http://bugzilla.opensuse.org/show_bug.cgi?id=1098009#c4 --- Comment #4 from David Kronlid --- I can confirm it is related to the hardware, it seems to be related to the CPU. I tried running OpenSUSE 42.3 in a KVM virtual machine. If I set the CPU to KVM64 or core2duo it works fine. If I set it to use the host CPU (Skylake-Client-IBRS) it gives the same error message about "DWARF2 unwinder stuck" -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1098009 http://bugzilla.opensuse.org/show_bug.cgi?id=1098009#c6 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bpetkov@suse.com, | |jkosina@suse.com, | |jslaby@suse.com --- Comment #6 from Takashi Iwai --- Thanks, it'a a damn good information! Boris, Jiri, something screwed up with the recent update. -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1098009 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |meissner@suse.com -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1098009 http://bugzilla.opensuse.org/show_bug.cgi?id=1098009#c19 --- Comment #19 from David Kronlid --- Created attachment 774357 --> http://bugzilla.opensuse.org/attachment.cgi?id=774357&action=edit The kernel from http://beta.suse.com/private/jkosina/bsc1098009/ caused another error on physical machine I tested the "beta kernel" on my physical machine with skylake cpu and it caused another error message, see picture. Hopefully this is only because it's a kernel based on SLE 12 SP3 running on Leap 42.3 -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1098009 http://bugzilla.opensuse.org/show_bug.cgi?id=1098009#c21 --- Comment #21 from David Kronlid --- Yes, I'm using secure boot! Plus that machine has a NVME drive with the UEFI files on it, but booting from another SATA SSD so there's several non-standard configurations. It's my gaming machine which I also use as a test machine before I start applying patches and updates or distro upgrades to my servers. I also test on a virtual machine running on a machine with AMD CPU before I start updating all machines. Testing on unimportant machines before applying things on important machines who need to run 24/7 has helped me many times during the years. This procedure is especially important to do on Ubuntu servers as they don't have "snapper rollback", but I do it also for OpenSUSE machines even if they have "snapper rollback". -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1098009 Mara Raram changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |marararam@gmx.net -- You are receiving this mail because: You are on the CC list for the bug.