(In reply to Coly Li from comment #10) > (In reply to Takashi Iwai from comment #9) > > (In reply to Coly Li from comment #7) > > > Let me have a look on this, please give me some hint. Should I get kernel > > > source from branch origin/openSUSE-42.3 ? > > > > The bug was detected on 4.12, i.e. stable branch. > > Hi Takashi, > > Get it. There are two questions more from me, > 1) The fix is not upstream yet, can I submit it to stable branch now? Well, is there any reason you can't submit to upstream? If not, at least, please submit the patch. An in-house patch can be applied to our kernel, but we really should try to follow our own "upstream-first" rule. > 2) I guess it should be in stable branch of openSUSE tree on > https://github.com/openSUSE/kernel-source/tree/stable, am I right ? Yes. The kernel git tree is shared by both SUSE and openSUSE, BTW. It's the very same kernel-source.git tree you're working on everyday.