Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-08 Thread Jan Kara
On Tue 07-03-17 17:26:56, Jan Kara wrote: > On Tue 07-03-17 08:10:29, James Bottomley wrote: > > On Tue, 2017-03-07 at 15:41 +0100, Jan Kara wrote: > > > On Mon 06-03-17 09:25:42, James Bottomley wrote: > > > > On Mon, 2017-03-06 at 17:13 +0100, Jan Kara wrote: > > > > > On Mon 06-03-17 07:44:55, J

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-07 Thread Jan Kara
On Tue 07-03-17 08:10:29, James Bottomley wrote: > On Tue, 2017-03-07 at 15:41 +0100, Jan Kara wrote: > > On Mon 06-03-17 09:25:42, James Bottomley wrote: > > > On Mon, 2017-03-06 at 17:13 +0100, Jan Kara wrote: > > > > On Mon 06-03-17 07:44:55, James Bottomley wrote: > > ... > > > > > > Sure. The

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-07 Thread James Bottomley
On Tue, 2017-03-07 at 15:41 +0100, Jan Kara wrote: > On Mon 06-03-17 09:25:42, James Bottomley wrote: > > On Mon, 2017-03-06 at 17:13 +0100, Jan Kara wrote: > > > On Mon 06-03-17 07:44:55, James Bottomley wrote: > ... > > > > > Sure. The call trace is: > > > > > > > > > > [ 41.919244] --

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-07 Thread Jan Kara
On Mon 06-03-17 09:25:42, James Bottomley wrote: > On Mon, 2017-03-06 at 17:13 +0100, Jan Kara wrote: > > On Mon 06-03-17 07:44:55, James Bottomley wrote: ... > > > > Sure. The call trace is: > > > > > > > > [ 41.919244] [ cut here ] > > > > [ 41.919263] WARNING: CPU: 4

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-06 Thread James Bottomley
On Mon, 2017-03-06 at 17:13 +0100, Jan Kara wrote: > On Mon 06-03-17 07:44:55, James Bottomley wrote: > > On Mon, 2017-03-06 at 16:14 +0100, Jan Kara wrote: > > > On Mon 06-03-17 06:35:21, James Bottomley wrote: > > > > On Mon, 2017-03-06 at 13:01 +0100, Jan Kara wrote: > > > > > On Mon 06-03-17 11

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-06 Thread James Bottomley
On Mon, 2017-03-06 at 16:14 +0100, Jan Kara wrote: > On Mon 06-03-17 06:35:21, James Bottomley wrote: > > On Mon, 2017-03-06 at 13:01 +0100, Jan Kara wrote: > > > On Mon 06-03-17 11:27:33, Jan Kara wrote: > > > > Hi, > > > > > > > > On Sun 05-03-17 10:21:11, Wu Fengguang wrote: > > > > > FYI next-

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-06 Thread Jan Kara
On Mon 06-03-17 07:44:55, James Bottomley wrote: > On Mon, 2017-03-06 at 16:14 +0100, Jan Kara wrote: > > On Mon 06-03-17 06:35:21, James Bottomley wrote: > > > On Mon, 2017-03-06 at 13:01 +0100, Jan Kara wrote: > > > > On Mon 06-03-17 11:27:33, Jan Kara wrote: > > > > > Hi, > > > > > > > > > > On

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-06 Thread Jan Kara
On Mon 06-03-17 06:35:21, James Bottomley wrote: > On Mon, 2017-03-06 at 13:01 +0100, Jan Kara wrote: > > On Mon 06-03-17 11:27:33, Jan Kara wrote: > > > Hi, > > > > > > On Sun 05-03-17 10:21:11, Wu Fengguang wrote: > > > > FYI next-20170303 is good while mainline is bad with this error. > > > > T

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-06 Thread James Bottomley
On Mon, 2017-03-06 at 13:01 +0100, Jan Kara wrote: > On Mon 06-03-17 11:27:33, Jan Kara wrote: > > Hi, > > > > On Sun 05-03-17 10:21:11, Wu Fengguang wrote: > > > FYI next-20170303 is good while mainline is bad with this error. > > > The attached reproduce-* may help reproduce the issue. > > > >

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-06 Thread Jan Kara
Hi, On Sun 05-03-17 10:21:11, Wu Fengguang wrote: > FYI next-20170303 is good while mainline is bad with this error. > The attached reproduce-* may help reproduce the issue. Thanks for report! So from the stacktrace we are in the path testing removal of a device immediately after it has been prob

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-05 Thread Fengguang Wu
On Sun, Mar 05, 2017 at 08:12:30AM -0700, Jens Axboe wrote: On 03/04/2017 07:21 PM, Fengguang Wu wrote: Hi Jan, FYI next-20170303 is good while mainline is bad with this error. The attached reproduce-* may help reproduce the issue. What's the test case here? It's Sunday, we need to make a qui

Re: [bdi_unregister] 165a5e22fa INFO: task swapper:1 blocked for more than 120 seconds.

2017-03-05 Thread Jens Axboe
On 03/04/2017 07:21 PM, Fengguang Wu wrote: > Hi Jan, > > FYI next-20170303 is good while mainline is bad with this error. > The attached reproduce-* may help reproduce the issue. What's the test case here? It's Sunday, we need to make a quick decision on whether to revert this patch or not. I'm