Hi Greg, I have never done kernel bisect before so I need to do some reading first. I will report back a.s.a.p. Stefan On Wed, 2021-11-24 at 08:33 +0100, Greg KH wrote: > On Wed, Nov 24, 2021 at 08:28:39AM +0100, Stefan Dietrich wrote: > > Summary: When attempting to rise or shut down a NIC manually or via > > network-manager under 5.15, the machine reboots or freezes. > > > > Occurs with: 5.15.4-051504-generic and earlier 5.15 mainline ( > > https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15.4/) as well as > > liquorix flavours. > > Does not occur with: 5.14 and 5.13 (both with various flavours) > > Can you use 'git bisect' between 5.14 and 5.15 to find the problem > commit? > > thanks, > > greg k-h