Comment # 24 on bug 944978 from Takashi Iwai

Thanks.  Can you get the kernel message at crashing by any chance?

If not, try enabling kdump.  Unfortunately, kdump package on Leap beta1 doesn't
work well as is for now (reported in boo#947816).  Try the following instead:

- Add kdump OBS repo:
  # zypper ar obs://Kernel:/kdump/openSUSE_Factory kdump

- Install kdump and kexec-tools from that repo
  # zypper in -r kdump kdump kexec-tools

- Install yast2-kdump package
  # zypper in yast2-kdump

- Set up kdump via yast2 kdump.  Enable the kdump in the checkbox, then
configure the memory size.  yast2-kdump asks some stupid values there.  Just
ignore them, give 256 to low memory, and leave 0 to high memory.

- Try to enable magic sysrq.  Add the following line to
/etc/sysctl.d/99-sysctl.conf:

kernel.sysrq = 1

- Reboot the system.  Check "systemctl status kdump" and see that it's loaded
properly without error.

- Check whether kdump works.  You can trigger it via magic sysrq, Alt-SysRq-c
key combination.  (sysrq key is sometimes print-screen key, often activated
with Fn key on laptops.)

  If nothing happens (or just keeping freezing), something went wrong.  Usually
it switches to the crash dump kernel after some seconds, then starts dumping
verbosely.  When the dump worked, run "reboot -f" there.

- If you confirmed that kdump works, try to reboot again and load the wifi
driver manually.  If the kernel panics, it should trigger kdump by itself.
If nothing happens, try to do alt-sysrq-c combo to trigger kdump manually.

Once when you get the kdump, please attach the dmesg output found in the
obtained crash directory to Bugzilla.