Re: bfq/ext4 disk IO hangs forever on resume

2017-08-18 Thread Alex Xu
On Tue, 25 Jul 2017 20:18:07 +0800 Ming Lei wrote as excerpted: > On Mon, Jun 26, 2017 at 11:07 AM, Alex Xu wrote: > > Hi, > > > > I get hangs when resuming when using bfq-mq with ext4 on 4.12-rc6+ > > (currently a4fd8b3accf43d407472e34403d4b0a4df5c0e71). > > Please test the following patch t

Re: bfq/ext4 disk IO hangs forever on resume

2017-07-25 Thread Jens Axboe
On 07/25/2017 02:51 AM, Jan Kara wrote: > Hello, > > On Sun 25-06-17 23:07:56, Alex Xu wrote: >> I get hangs when resuming when using bfq-mq with ext4 on 4.12-rc6+ >> (currently a4fd8b3accf43d407472e34403d4b0a4df5c0e71). >> >> Steps to reproduce: >> 1. boot computer >> 2. systemctl suspend >> 3. w

Re: bfq/ext4 disk IO hangs forever on resume

2017-07-25 Thread Ming Lei
On Mon, Jun 26, 2017 at 11:07 AM, Alex Xu wrote: > Hi, > > I get hangs when resuming when using bfq-mq with ext4 on 4.12-rc6+ > (currently a4fd8b3accf43d407472e34403d4b0a4df5c0e71). Please test the following patch to see if it can help your issue: https://git.kernel.org/pub/scm/linux/kernel/git/

Re: bfq/ext4 disk IO hangs forever on resume

2017-07-25 Thread Jan Kara
Hello, On Sun 25-06-17 23:07:56, Alex Xu wrote: > I get hangs when resuming when using bfq-mq with ext4 on 4.12-rc6+ > (currently a4fd8b3accf43d407472e34403d4b0a4df5c0e71). > > Steps to reproduce: > 1. boot computer > 2. systemctl suspend > 3. wait few seconds > 4. press power button > 5. type "l

bfq/ext4 disk IO hangs forever on resume

2017-06-25 Thread Alex Xu
Hi, I get hangs when resuming when using bfq-mq with ext4 on 4.12-rc6+ (currently a4fd8b3accf43d407472e34403d4b0a4df5c0e71). Steps to reproduce: 1. boot computer 2. systemctl suspend 3. wait few seconds 4. press power button 5. type "ls" into console or SSH or do anything that does disk IO Expec