On 2022-05-21 12:23, Donald Buczek wrote: >> I noticed a clear regression with mdadm tests with this patch in md-next >> (7e6ba434cc6080). >> >> Before the patch, tests 07reshape5intr and 07revert-grow would fail >> fairly infrequently (about 1 in 4 runs for the former and 1 in 30 runs >> for the latter). >> >> After this patch, both tests always fail. >> >> I don't have time to dig into why this is, but it would be nice if >> someone can at least fix the regression. It is hard to make any progress >> on these tests if we are continuing to further break them. > > Hmmm. I wanted to try to help a bit by reproducing and digging into this. > > But it seems that more or less ALL tests hang my system one way or another. > > I've used a qemu/kvm machine with md-next and mdraid master. > > Is this supposed to work? I know those tests are full of bugs, I've been trying to remedy that somewhat. You can run with --tests=07reshape5intr to run a specific test. And I have a branch[1] with some fixen and also adds a --loop option to run tests multiple times. I expect 00raid0 to fail with the master branch, however I have not seen that specific trace back. Might be worth debugging that one if you can. Logan [1] https://github.com/lsgunth/mdadm bugfixes2
