On Wed, Jun 23, 2021 at 03:49:52PM -0400, Theodore Ts'o wrote: > CC'ed Josh since he was testing this patchset. > > On Wed, Jun 23, 2021 at 09:13:42AM -0400, Theodore Ts'o wrote: > > > > The conflicts were relatively minor, but the obvious fix-ups resulted > > in a large number of crashes caused by various stress tests, such as > > generic/068 and generic/204. I'm currently investigating to see what > > I might have messed up when I tried applying these patches, as well as > > running your patch set applied against 5.12 to make sure the problems > > weren't introduced by the patch set itself. > > I applied this patch set on top of 5.12, where it applied w/o any > patch conflicts, and I'm still seeing large number of crashes[1]. The > crashes are in a wide variety of tests, and many of the stack traces > involve the ext4_discard_work workqueue. I applied this on top of a96bfed64c8986d6404e553f18203cae1f5ac7e6, which required some fixups. I didn't try to run any kind of intensive stress-tests, but I've run the deletion performance test I mentioned, as well as various software compiles and other miscellaneous work. I haven't run into any apparent issues.