Hi,
If I run test srp/002 against v5.16-rc1 then dmsetup hangs as follows at
the end of the test:
sysrq: Show Blocked State
task:dmsetup state:D stack:28136 pid: 3088 ppid: 3087
flags:0x00004000
Call Trace:
<TASK>
__schedule+0x4bd/0xc20
schedule+0x84/0x140
blk_mq_freeze_queue_wait+0xf7/0x130
del_gendisk+0x342/0x410
cleanup_mapped_device+0x165/0x170 [dm_mod]
__dm_destroy+0x280/0x450 [dm_mod]
dm_destroy+0x13/0x20 [dm_mod]
dev_remove+0x156/0x1d0 [dm_mod]
ctl_ioctl+0x2bb/0x4d0 [dm_mod]
dm_ctl_ioctl+0xe/0x20 [dm_mod]
__x64_sys_ioctl+0xc2/0xe0
do_syscall_64+0x35/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
I haven't seen this hang with any previous kernel version. Could this be
a block layer issue?
v5.16-rc1 includes Ming's commit 10f7335e3627 ("blk-mq: don't grab
->q_usage_counter in blk_mq_sched_bio_merge").
Thanks,
Bart.
