On Mon, Jan 16, 2023 at 12:41 AM Linux kernel regression tracking (Thorsten Leemhuis) <regressions@xxxxxxxxxxxxx> wrote: > > Forget to mention one small detail: > > On 15.01.23 15:21, Linux kernel regression tracking (Thorsten Leemhuis) > wrote: > > [CCing the regression list, as it should be in the loop for regressions: > > https://docs.kernel.org/admin-guide/reporting-regressions.html] > > > > Hi, this is your Linux kernel regression tracker. > > > > On 15.01.23 10:21, Peifeng Qiu wrote: > >> > >> I'm using a dual Xeon system with Intel e810 25G network card and make use > >> of SRIOV feature heavily. I have a script to setup the NIC the first step is > >> echo $VFS > /sys/class/net/$DEVNAME/device/sriov_numvfs > >> > >> After switching from v6.1 to v6.2-rc1 "sriov_numvfs" is no longer present. If I > >> switch back to v6.1 it's back. Command line parameters are the same so it's > >> most likely kernel changes. I did git bisect and found the culprit to be > >> 07eab0901ed(efi/x86: Remove EfiMemoryMappedIO from E820 map) > > > > This is not my area of expertise, but there is another report about an > > issue that was bisected to that particular commit: > > > > https://lore.kernel.org/lkml/ac2693d8-8ba3-72e0-5b66-b3ae008d539d@xxxxxxxxxxxxxxx/ > > > > A fix for that one was posted here: > > > > https://lore.kernel.org/lkml/20230110180243.1590045-1-helgaas@xxxxxxxxxx/ > > > > You might want to look into the report and if it looks like a possible > > duplicate give the proposed fix a try. > > FWIW, that patch was recently mainlined and thus will be in 6.2-rc4 that > Linus will likely release in a few hours. > > Ciao, Thorsten I just tested the latest v6.2-rc4 and I can confirm that the issue is fixed. Thanks! Best regards, Peifeng Qiu
