CC+: Mike, dm-devel, Hi Chaitanya, thanks for bringing this up! I definitely want to join and learn from the discussions. Here I note my comments about them. On Jan 18, 2023 / 23:52, Chaitanya Kulkarni wrote: [...] > For storage track, I would like to propose a session dedicated to > blktests. It is a great opportunity for the storage developers to gather > and have a discussion about:- > > 1. Current status of the blktests framework. In the session, I can talk shortly about recent blktests improvements and failure cases. > 2. Any new/missing features that we want to add in the blktests. A feature I wish is to mark dangerous test cases which cause system crash, in similar way as fstests does. I think they should be skipped by default not to confuse new blktests users. I remember that dmesg logging was discussed at the last LSFMMBPF, but it is not yet implemented. It may worth revisit. > 3. Any new kernel features that could be used to make testing easier? > 4. DM/MD Testcases. I took a liberty to add Mike and dm-devel to CC. Recently, a patch was posted to add 'dm' test category [1]. I hope it will help DM/MD developers to add more tests in the category. I would like to discuss if it is a good start, or if anything is missing in blktests to support DM/MD testing. [1] https://lore.kernel.org/linux-block/20221230065424.19998-1-yukuai1@xxxxxxxxxxxxxxx/#t > > E.g. Implementing new features in the null_blk.c in order to have device > independent complete test coverage. (e.g. adding discard command for > null_blk or any other specific REQ_OP). Discussion about having any new > tracepoint events in the block layer. > > 4. Any new test cases/categories which are lacking in the blktests > framework. One thing in my mind is character device. From recent discussions [2][3], it looks worth adding some basic test cases for NVME character devices and SG devices. [2] https://lore.kernel.org/linux-block/20221221103441.3216600-1-mcgrof@xxxxxxxxxx/ [3] https://lore.kernel.org/linux-scsi/Y77J%2Fw0gf2nIDMd%2F@x1-carbon/ -- Shin'ichiro Kawasaki
