* Marc Haber <mh+linux-kernel@xxxxxxxxxxxx> [230909 20:08]: > On Thu, Sep 07, 2023 at 01:51:50PM +0300, Tony Lindgren wrote: > > Still a minimal reproducable test case is needed.. Or do you have the > > dmesg output of the failing boot? > > I have both dmesg output of a failing boot (with my kernel) and of a > successful boot (with the Debian kernel). Attached. Thanks I don't see anything strange there, serial ports are probed in both cases. > In the last few days I have made some additional experiments. Since 6.5 > has landed in Debian experimental in the mean time, I tried with the > Debian kernel: It works. I then used the Debian .config with my kernel > tree and my build environment, it works as well. I tried again with my > own .config, doesn't work. OK > I spent the next days with kind of binary searching the .config > differences between mine and Debian's (they're huge), and I now have two > configurations that only differ in CONFIG_PREEMPT_VOLUNTARY and > CONFIG_PREMPT. The version with CONFIG_PREEMPT_VOLUNTARY seems to work > (both attached). Sadly, my "own" .config uses CONFIG_PREEMPT_VOLUNTARY > and doesn't work, so the actual problem seems to be a bit more complex > still. OK Regards, Tony
