On 2022-04-25 10:12, Xiao Ni wrote: >> I do know that lkp-tests has run it on this series as I did get an error >> from it. But while I'm pretty sure that error has been resolved, I was >> never able to figure out how to run them locally. >> > > Hi Logan > > You can clone the mdadm repo at > git://git.kernel.org/pub/scm/utils/mdadm/mdadm.git > Then you can find there is a script test under the directory. It's not > under the tests directory. > The test cases are under tests directory. So I've been fighting with this and it seems there are just a ton of failures in these tests without my changes. Running on the latest master (52c67fcdd6dad) with stock v5.17.5 I see major brokenness. About 17 out of 44 tests that run failed. I had to run with --disable-integrity because those tests seem to hang on an infinite loop waiting for the md array to go into the U state (even though it appears idle). Even though I ran the tests with '--keep-going', the testing stopped after the 07revert-grow reported errors in dmesg -- even though the only errors printed to dmesg were that of mdadm segfaulting. Running on md/md-next seems to get a bit further (to 10ddf-create-fail-rebuild) and stops with the same segfaulting issue (or perhaps the 07 test only randomly fails first -- I haven't run it that many times). Though most of the tests between these points fail anyway. My upcoming v3 patches cause no failures that are different from the md/md-next branch. But it seems these tests have rotted to the point that they aren't all that useful; or maybe there are a ton of regressions in the kernel already and nobody was paying much attention. I have also tried to test certain cases that appear broken in recent kernels anyway (like reducing the number of disks in a raid5 array hangs on the first stripe to reshape). In any case I have a very rough ad-hoc test suite I've been expanding that is targeted at testing my specific changes. Testing these changes has definitely been challenging. In any case, I've published my tests here: https://github.com/Eideticom/raid5-tests Logan
