Thank you Salvatore, I started the process and wrongly marked a commit as good when it is bad. I realize that on 6.12.113, the issue no longer occurs when I disconnect power from my AM06 mini PC. Issue however happens during reboot or warm boot.
I need to start over with that in mind but am traveling this week. Thank you for sharing the steps, I will resume and revert back next week. Kind regards, Youl Le 24 octobre 2026 17:06:45 GMT+02:00, Salvatore Bonaccorso <[email protected]> a écrit : >Control: tags -1 + moreinfo upstream > >Hi, > >On Sat, Oct 24, 2026 at 02:47:14PM +0200, youl wrote: >> Source: linux >> Version: 6.12.113-1 >> Severity: important >> X-Debbugs-Cc: [email protected] >> >> Dear Maintainer, >> >> --- Details --- >> A regression has been introduced in kernel version 6.12.113 >> affecting the AMD Renoir xHCI USB controllers [1022:1639]. USB >> hotplug detection completely breaks after boot, though all devices >> connected at boot enumerate successfully. > >As you are experiencing the regression from 6.12.107-1 can you please >bisect the changes upstream and report back what is the causing >change. > > git clone --single-branch -b linux-6.12.y > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git > cd linux-stable > git checkout v6.12.107 > cp /boot/config-$(uname -r) .config > yes '' | make localmodconfig > make savedefconfig > mv defconfig arch/x86/configs/my_defconfig > > # test 6.12.107 to ensure this is "good" > make my_defconfig > make -j $(nproc) bindeb-pkg > ... install the resulting .deb package and confirm problem does not exist > > # test 6.12.113 to ensure this is "bad" > git checkout v6.12.113 > make my_defconfig > make -j $(nproc) bindeb-pkg > ... install the resulting .deb package and confirm problem exists > >With that confirmed, the bisection can start: > > git bisect start --first-parent > git bisect good v6.12.107 > git bisect bad v6.12.113 > >In each bisection step git checks out a state between the oldest >known-bad and the newest known-good commit. In each step test using: > > make my_defconfig > make -j $(nproc) bindeb-pkg > ... install, verify if problem exists > >and if the problem is hit run: > > git bisect bad > >and if the problem doesn't trigger run: > > git bisect good > >. Please pay attention to always select the just built kernel for >booting, it won't always be the default kernel picked up by grub. > >Iterate until git announces to have identified the first bad commit. > >Then provide the output of > > git bisect log > >In the course of the bisection you might have to uninstall previous >kernels again to not exhaust the disk space in /boot. Also in the end >uninstall all self-built kernels again. > >Regards, >Salvatore -- Envoyé depuis /e/OS Mail.
