Re: [PATCH v4 1/7] md: Make md resync and reshape threads freezable

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On Tue, Sep 26, 2017 at 02:42:07PM +0000, Bart Van Assche wrote:
> On Tue, 2017-09-26 at 19:17 +0800, Ming Lei wrote:
> > Just test this patch a bit and the following failure of freezing task
> > is triggered during suspend: [ ... ]
> 
> What kernel version did you start from and which patches were applied on top of
> that kernel? Only patch 1/7 or all seven patches? What storage configuration did

It is v4.14-rc1+, and top commit is 8d93c7a43157, with all your 7 patches
applied.

> you use in your test and what command(s) did you use to trigger suspend?

Follows my pm test script:

	#!/bin/sh
	
	echo check > /sys/block/md127/md/sync_action
	
	mkfs.ext4 -F /dev/md127
	
	mount /dev/md0 /mnt/data
	
	dd if=/dev/zero of=/mnt/data/d1.img bs=4k count=128k&
	
	echo 9 > /proc/sys/kernel/printk
	echo devices > /sys/power/pm_test
	echo mem > /sys/power/state
	
	wait
	umount /mnt/data

Storage setting:

	sudo mdadm --create /dev/md/test /dev/sda /dev/sdb --level=1 --raid-devices=2
	both /dev/sda and /dev/sdb are virtio-scsi.


-- 
Ming
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