On 14/04/18 20:52, Jens Axboe wrote:
On 4/14/18 1:46 PM, Alan Jenkins wrote:
On 13/04/18 09:31, Johannes Thumshirn wrote:
Hi Alan,
On Thu, 2018-04-12 at 19:11 +0100, Alan Jenkins wrote:
# dd if=/dev/sda of=/dev/null iflag=direct & \
while killall -SIGUSR1 dd; do sleep 0.1; done & \
ec
On 4/12/18 12:11 PM, Alan Jenkins wrote:
> When blk_queue_enter() waits for a queue to unfreeze, or unset the
> PREEMPT_ONLY flag, do not allow it to be interrupted by a signal.
>
> The PREEMPT_ONLY flag was introduced later in commit 3a0a529971ec
> ("block, scsi: Make SCSI quiesce and resume work
On 4/14/18 1:46 PM, Alan Jenkins wrote:
> On 13/04/18 09:31, Johannes Thumshirn wrote:
>> Hi Alan,
>>
>> On Thu, 2018-04-12 at 19:11 +0100, Alan Jenkins wrote:
>>> # dd if=/dev/sda of=/dev/null iflag=direct & \
>>>while killall -SIGUSR1 dd; do sleep 0.1; done & \
>>>echo mem > /sys/power/st
On 13/04/18 09:31, Johannes Thumshirn wrote:
Hi Alan,
On Thu, 2018-04-12 at 19:11 +0100, Alan Jenkins wrote:
# dd if=/dev/sda of=/dev/null iflag=direct & \
while killall -SIGUSR1 dd; do sleep 0.1; done & \
echo mem > /sys/power/state ; \
sleep 5; killall dd # stop after 5 seconds
Can
Hi Alan,
On Thu, 2018-04-12 at 19:11 +0100, Alan Jenkins wrote:
> # dd if=/dev/sda of=/dev/null iflag=direct & \
> while killall -SIGUSR1 dd; do sleep 0.1; done & \
> echo mem > /sys/power/state ; \
> sleep 5; killall dd # stop after 5 seconds
Can you please also add a regression test to b
When blk_queue_enter() waits for a queue to unfreeze, or unset the
PREEMPT_ONLY flag, do not allow it to be interrupted by a signal.
The PREEMPT_ONLY flag was introduced later in commit 3a0a529971ec
("block, scsi: Make SCSI quiesce and resume work reliably"). Note the SCSI
device is resumed async
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