Messages in this thread | | | Date | Wed, 17 Aug 2022 14:54:42 -0400 | From | "Chris Murphy" <> | Subject | Re: stalling IO regression since linux 5.12, through 5.18 |
| |
On Wed, Aug 17, 2022, at 2:33 PM, Jan Kara wrote: > On Wed 17-08-22 14:18:01, Chris Murphy wrote: >> >> >> On Wed, Aug 17, 2022, at 2:15 PM, Jan Kara wrote: >> >> > OK, if this indeed passes then b6e68ee82585 ("blk-mq: Improve performance >> > of non-mq IO schedulers with multiple HW queues") might be what's causing >> > issues (although I don't know how yet...). >> >> I can revert it from 5.12.0 and try. Let me know which next test is preferred :) > > Let's try to revert this first so that we have it narrowed down what > started causing the issues.
OK I've reverted b6e68ee82585, and removing megaraid_sas.host_tagset_enable=0, and will restart the workload...
Usually it's within 10 minutes but the newer the kernel it seems the longer it takes, or the more things I have to throw at it. The problem doesn't reproduce at all with 5.19 series unless I also run a separate dnf install, and that only triggers maybe 1 in 3 times.
-- Chris Murphy
| |