[TLDR: This mail in primarily relevant for Linux kernel regression tracking. See link in footer if these mails annoy you.] On 06.09.23 03:01, Bagas Sanjaya wrote: > On Tue, Sep 05, 2023 at 01:09:05PM -0400, Brian Pardy wrote: >> My apologies if I do not have the bug report protocol correct in posting here. >> >> I've noticed an issue with the CIFS client in kernel 6.5.0/6.5.1 that >> does not exist in 6.4.12 or other previous kernels (I have not tested >> 6.4.13). Almost immediately after mounting a CIFS share, the reported >> load average on my system goes up by 2. At the time this occurs I see >> two [cifsd-cfid-laundromat] kernel threads running the "D" state, >> where they remain for the entire time the CIFS share is mounted. The >> load will remain stable at 2 (otherwise idle) until the share is >> unmounted, at which point the [cifsd-cfid-laundromat] threads >> disappear and load drops back down to 0. This is easily reproducible >> on my system, but I am not sure what to do to retrieve more useful >> debugging information. If I mount two shares from this server, I get >> four laundromat threads in "D" state and a sustained load average of >> 4. >>[...] > Anyway, I'm adding it to regzbot: > > #regzbot ^introduced: v6.4..v6.5 > #regzbot title: incorrect CPU utilization report (multiplied) when mounting CIFS #regzbot fix: 2da338ff752a2789470 #regzbot ignore-activity Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr That page also explains what to do if mails like this annoy you.
