blktests failures with v6.5-rc1

[Shinichiro Kawasaki]

Hi all,

I ran the latest blktests (git hash: acc408477e85) with v6.5-rc1 kernel and
observed new failures those were not observed with v6.4. FYI, here I list the
new failures. As for the failures observed with v6.4, please refer [1].

[1] https://lore.kernel.org/linux-block/lkmloyrqpebispffur5udxdiubmevvodtsvnap3jz7tv5ihstr@jg7ejye3bein/

List of new failures
====================
#1: block/004, block/005, zbd/005, zbd/006
#2: scsi/002
#3: zbd/010

Failure description
===================

#1: block/004, block/005, zbd/005, zbd/006

The test cases fail when TEST_DEV is device-mapper, such as dm-linear.
They fail because the test cases set /sys/block/*/queue/scheduler, which
is no longer available for device-mapper from v6.5-rc1. Blktests fix will
be required. I will work on the fix.

#2: scsi/002

With kernel v6.5-rc1, /dev/sg* files are not created for SCSI devices. It makes
scsi/002 fail. A kernel fix is posted [2].

[2] https://lore.kernel.org/linux-scsi/20230705024001.177585-1-yukuai1@huaweicloud.com/

#3: zbd/010

With kernel v6.5-rc1, f2fs mount fails on zoned block devices. It makes zbd/010
fail. A kernel fix candidate is posted [3].

[3] https://lkml.kernel.org/linux-f2fs-devel/20230711050101.GA19128@lst.de/