YunQiang Su <wzss...@gmail.com> 于2021年10月22日周五 下午10:36写道： > > Claudio Kuenzler <c...@claudiokuenzler.com> 于2021年10月22日周五 下午2:03写道： > > > > The fact that a later Kernel versions work fine _could_ be because of a > > hpwdt commit after 5.10: > > https://github.com/torvalds/linux/commit/acc195bd2cc48445ea35d00036d8c0afcc4fcc9c#diff-994ee4b010b5c6222ad7a20e160f733401f46894b36fa3e1fb6ffbb48bedb817 > > I have not tested sid or a newer Kernel on our HP machines though. > > If you've compiled your own Kernel and this one works (did your do a > > multiple reboot test?), maybe there's a difference in the Kernel "config"? > > > > What happens if you disable the hpwdt module as mentioned in the other bug > > reports? Does Bullseye with 5.10 and experimental with 5.14 work in this > > case? > > I test upstream linux and debian-linux with the same config. > All of the upstream config works fine, while debian-linux has this problem. > I guess it is due to one patch by Debian. >
I find the real problem: it is due to intel_iommu by default. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=934309 > -- > YunQiang Su -- YunQiang Su
