Re: split scsi passthrough fields out of struct request V2

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On 01/26/2017 06:15 PM, Bart Van Assche wrote:
> On Thu, 2017-01-26 at 17:41 -0700, Jens Axboe wrote:
>> On 01/26/2017 05:38 PM, Bart Van Assche wrote:
>>> I see similar behavior with the blk-mq-sched branch of
>>> git://git.kernel.dk/linux-block.git (git commit ID 0efe27068ecf):
>>> booting happens much slower than usual and I/O hangs if I run the
>>> srp-test software.
>>
>> Please don't run that, run for-4.11/block and merge it to master.
>> Same behavior?
> 
> I have not yet had the chance to run the srp-test software against that
> kernel. But I already see that booting takes more than ten times longer
> than usual. Note: as far as I know the dm-mpath driver is not involved
> in the boot process of my test system.

What's your boot device? I've been booting this on a variety of setups,
no problems observed. It's booting my laptop, and on SCSI and SATA as
well. What is your root drive? What is the queue depth of it?
Controller?

-- 
Jens Axboe

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