Created attachment 862547 [details] diff between 6.0.3 and the working patched kernel (In reply to Takashi Iwai from comment #12) > My test kernel was just dropping two patches: > > patches.kernel.org/6.0.3-159-tracing-Wake-up-ring-buffer-waiters-on-closing-. > patch You already had hit the nail! > I guess the best is to do git bisect in your side between 6.0.2 and 6.0.3 > kernels. I have bisected the 6.0.3 branch and found that commit `f3ddb74ad0790030c9592229fb14d8c451f4e9a8` is faulty. To verify it, I have checked out v6.0.3, applied the attached diff, which basically reverts the commit, built and booted it and it simply works. :)