On 08/21/2018 04:03 PM, Adrian Hunter wrote:
On 21/08/18 15:37, Jarkko Nikula wrote:
Hi
I bisected some kind of SDHCI regression to commit 6ce3dd6eec11 ("blk-mq:
issue directly if hw queue isn't busy in case of 'none'") causing dumps
below and one or more systemd-udevd processes being in uninterruptible sleep
state preventing safe reboot/shutdown.
This is from an Intel Baytrail based tablet with integrated eMMC but my
up-to-date Debian/testing rootfs (with systemd) is on USB stick.
It doesn't revert cleanly on today's head 778a33959a8a but issue is gone if
I go to a commit before 6ce3dd6eec11 and occurs at 6ce3dd6eec11.
This was discussed here:
https://marc.info/?l=linux-block&m=153334717506073&w=2
Coincidentally, I just sent the fix patch:
https://marc.info/?l=linux-mmc&m=153485326025301&w=2
Cool, it fixed my regression. I tested both on top of 6ce3dd6eec11 and
head 778a33959a8a. Maybe you would like to add into your patch another
fixes tag and my tested by:
Fixes: 6ce3dd6eec11 ("blk-mq: issue directly if hw queue isn't busy in
case of 'none'")
Tested-by: Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx>
