Do we get a crash log, if it's a kernel crash? Also, was it tested with the SLE15-SP5-GM kernel (that is from the official SUSE/Leap repo), or is it a SLE15-SP5 KOTD (in OBS Kernel:SLE15-SP5 repo)? Last but not least, please try with the kernel in OBS home:tiwia:bsc1206843-3 repo, too: http://download.opensuse.org/repositories/home:/tiwai:/bsc1206843-3/pool/