On Sun, 2018-01-21 at 11:19 -0500, David Zarzycki wrote: > How can I help debug this further? Please apply patch [1] on top of Jens' for-next branch [2], reproduce the hang and provide the output of the following command: (cd /sys/kernel/debug/block && find . -type f -exec grep -aH . {} \;) Thanks, Bart. [1] [PATCH] blk-mq-debugfs: Also show requests that have not yet been started https://www.mail-archive.com/linux-block@xxxxxxxxxxxxxxx/msg17313.html [2] http://git.kernel.dk/cgit/linux-block/log/?h=for-next