[TLDR: I'm adding this report to the list of tracked Linux kernel regressions; the text you find below is based on a few templates paragraphs you might have encountered already in similar form. See link in footer if these mails annoy you.] On 23.05.23 03:35, kernel test robot wrote: > Hello, > > kernel test robot noticed a -88.8% regression of stress-ng.ramfs.ops_per_sec on: > > commit: f95bdb700bc6bb74e1199b1f5f90c613e152cfa7 ("mm: vmscan: make global slab shrink lockless") > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master To be sure Linus is aware of the pending revert before releasing -rc7, let me add this to the list of tracked regressions: #regzbot ^introduced f95bdb700bc6bb74e1199b1f5f90c613e152cfa7. #regzbot title mm: problems with the SRCU changeover (two reverts pending) #regzbot monitor: https://lore.kernel.org/all/ZH6K0McWBeCjaf16@xxxxxxxxxxxxxxxxxxx/ #regzbot fix: Revert "mm: vmscan: make global slab shrink lockless" #regzbot ignore-activity Side note: "Revert "mm: vmscan: add shrinker_srcu_generation"" (also in mm-hotfixes-unstable/next) is related. See https://lore.kernel.org/all/51cbf269-daff-d7b8-653f-7ba388475ab8@xxxxxxxxx/ 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.