Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-05-09 Thread Ross Green
On Sun, May 8, 2016 at 1:25 AM, Paul E. McKenney wrote: > On Fri, May 06, 2016 at 04:25:16PM +1000, Ross Green wrote: >> On Sun, Apr 3, 2016 at 6:18 PM, Paul E. McKenney >> wrote: >> > On Thu, Mar 31, 2016 at 08:42:55AM -0700, Paul E. McKenney wrote: >> >>

Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-03-03 Thread Ross Green
Feb 25, 2016 at 04:13:11PM +1100, Ross Green wrote: >> > On Wed, Feb 24, 2016 at 8:28 AM, Ross Green wrote: >> > > On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney >> > > wrote: >> >> [ . . . ] >> >> > &g

Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-02-24 Thread Ross Green
On Wed, Feb 24, 2016 at 8:28 AM, Ross Green wrote: > On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney > wrote: >> On Tue, Feb 23, 2016 at 08:34:11PM +, Mathieu Desnoyers wrote: >>> - On Feb 21, 2016, at 1:15 PM, Ross Green rgker...@gmail.com wrote: >>> >

Re: wlcore: Fix regression in wlcore_set_partition()

2016-02-24 Thread Ross Green
On Thu, Feb 25, 2016 at 1:13 PM, Ross Green wrote: > On Thu, Feb 25, 2016 at 11:11 AM, Emil Goode wrote: >> Hello Ross >> >> On Wed, Feb 24, 2016 at 04:40:50PM +1100, Ross Green wrote: >>> On Wed, Feb 17, 2016 at 4:34 PM, Ross Green wrote: >>> > Apprec

Re: wlcore: Fix regression in wlcore_set_partition()

2016-02-24 Thread Ross Green
On Thu, Feb 25, 2016 at 11:11 AM, Emil Goode wrote: > Hello Ross > > On Wed, Feb 24, 2016 at 04:40:50PM +1100, Ross Green wrote: >> On Wed, Feb 17, 2016 at 4:34 PM, Ross Green wrote: >> > Appreciate your efforts! >> > >> > Just trying to make sure it

Re: wlcore: Fix regression in wlcore_set_partition()

2016-02-23 Thread Ross Green
On Wed, Feb 17, 2016 at 4:34 PM, Ross Green wrote: > Appreciate your efforts! > > Just trying to make sure it does not get lost. > Introduced in rc1, not fixed by ... rc4. > > Anyway, I will continue to test, lots of other things still to chase > even in rc4! > > Reg

Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-02-23 Thread Ross Green
On Wed, Feb 24, 2016 at 7:55 AM, Paul E. McKenney wrote: > On Tue, Feb 23, 2016 at 08:34:11PM +, Mathieu Desnoyers wrote: >> - On Feb 21, 2016, at 1:15 PM, Ross Green rgker...@gmail.com wrote: >> >> > On Sun, Feb 21, 2016 at 4:04 PM, Ross Green wrote: >> &

Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-02-21 Thread Ross Green
On Sat, Feb 20, 2016 at 5:32 PM, Paul E. McKenney wrote: > On Sat, Feb 20, 2016 at 03:34:30PM +1100, Ross Green wrote: >> On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney >> wrote: >> > On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote: >> >> O

Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-02-21 Thread Ross Green
On Sun, Feb 21, 2016 at 4:04 PM, Ross Green wrote: > On Sat, Feb 20, 2016 at 5:32 PM, Paul E. McKenney > wrote: >> On Sat, Feb 20, 2016 at 03:34:30PM +1100, Ross Green wrote: >>> On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney >>> wrote: >>> > On T

Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-02-19 Thread Ross Green
On Sat, Feb 20, 2016 at 4:33 AM, Paul E. McKenney wrote: > On Thu, Feb 18, 2016 at 08:13:18PM -0800, John Stultz wrote: >> On Thu, Feb 18, 2016 at 7:56 PM, Ross Green wrote: >> > Well a bonus extra! >> > Kept everything running and there was another stall. >&g

Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-02-18 Thread Ross Green
On Fri, Feb 19, 2016 at 3:22 PM, Paul E. McKenney wrote: > On Thu, Feb 18, 2016 at 11:14:21PM +, Mathieu Desnoyers wrote: >> - On Feb 18, 2016, at 6:51 AM, Ross Green rgker...@gmail.com wrote: >> >> > On Thu, Feb 18, 2016 at 10:19 AM, Paul E. McKenney >>

Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-02-18 Thread Ross Green
On Fri, Feb 19, 2016 at 10:14 AM, Mathieu Desnoyers wrote: > - On Feb 18, 2016, at 6:51 AM, Ross Green rgker...@gmail.com wrote: > >> On Thu, Feb 18, 2016 at 10:19 AM, Paul E. McKenney >> wrote: >>> On Wed, Feb 17, 2016 at 12:28:29PM -0800, Paul E. McKenney wrote

Re: rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-02-18 Thread Ross Green
gt; On Tue, Feb 16, 2016 at 09:45:49PM -0800, Paul E. McKenney wrote: >> > > > On Tue, Feb 09, 2016 at 09:11:55PM +1100, Ross Green wrote: >> > > > > Continued testing with the latest linux-4.5-rc3 release. >> > > > > >> > > > > Pl

Re: wlcore: Fix regression in wlcore_set_partition()

2016-02-16 Thread Ross Green
Appreciate your efforts! Just trying to make sure it does not get lost. Introduced in rc1, not fixed by ... rc4. Anyway, I will continue to test, lots of other things still to chase even in rc4! Regards, Ross Green On Wed, Feb 17, 2016 at 2:24 AM, Kalle Valo wrote: > Ross Green wri

Re: wlcore: Fix regression in wlcore_set_partition()

2016-02-14 Thread Ross Green
size brings the module back to >> it's functional state. >> >> Fixes: 3719c17e1816 ("wlcore/wl18xx: fw logger over sdio") >> Reported-by: Ross Green >> Signed-off-by: Emil Goode >> [kv...@codeaurora.org: improved commit log] > > Thanks, app

rcu_preempt self-detected stall on CPU from 4.5-rc3, since 3.17

2016-02-09 Thread Ross Green
completion and then leave the system idle away with just a few daemons running. the self detected stalls in this instance turned up after a days run time. There were NO heavy artificial computational loads on the machine. Regards, Ross Green dmesg-4.5-rc3 Description: Binary data

Re: wl12xx regression on 4.5 (was: Re: linux-4.5-rc1 TI pandboard-es wifi wlcore locks and reset)

2016-02-08 Thread Ross Green
On Mon, Feb 8, 2016 at 9:05 AM, Emil Goode wrote: > Hello, > > On Tue, Feb 02, 2016 at 05:05:38PM +0100, Sebastian Reichel wrote: >> On Tue, Feb 02, 2016 at 04:41:13PM +1100, Ross Green wrote: >> > On Tue, Feb 2, 2016 at 3:34 PM, Sebastian Reichel wrote: >> > >

Re: wl12xx regression on 4.5 (was: Re: linux-4.5-rc1 TI pandboard-es wifi wlcore locks and reset)

2016-02-02 Thread Ross Green
On Wed, Feb 3, 2016 at 3:05 AM, Sebastian Reichel wrote: > Hi Ross, > > Please don't top-post on kernel mailinglists. Use either inline > style or bottom posting. > > On Tue, Feb 02, 2016 at 04:41:13PM +1100, Ross Green wrote: >> On Tue, Feb 2, 2016 at 3:34 PM, Seba

Re: linux-4.5-rc1 TI pandboard-es wifi wlcore locks and reset

2016-02-01 Thread Ross Green
rds, Ross Green On Tue, Feb 2, 2016 at 3:34 PM, Sebastian Reichel wrote: > Hi, > > On Mon, Feb 01, 2016 at 11:38:38PM +1100, Ross Green wrote: >> On Mon, Jan 25, 2016 at 11:47 PM, Ross Green wrote: >> > Just tried the new kernel release on faithful pandaboard es

Re: linux-4.5-rc1 TI pandboard-es wifi wlcore locks and reset

2016-02-01 Thread Ross Green
with linux-4.5-rc2? Just for completeness also tested the latest linux-4.4.1 kernel and found no problems with the wireless modules. Regards, Ross Green On Mon, Jan 25, 2016 at 11:47 PM, Ross Green wrote: > Just tried the new kernel release on faithful pandaboard es with the > new 4

linux-4.5-rc1 TI pandboard-es wifi wlcore locks and reset

2016-01-25 Thread Ross Green
this board. Here is a dmesg dump in the attachment. Anyone have any ideas here? Regards, Ross Green dmesg-panda-4.5-rc1 Description: Binary data

Re: rcu_preempt self-detected stall on CPU from 4.4-rc4, since 3.17

2016-01-06 Thread Ross Green
cords of these stall warnings before these kernels. I guess someone must have suspected there was a potential for these stalls and hence the detection facility. Regards, Ross On Tue, Jan 5, 2016 at 1:21 AM, Ross Green wrote: > Well with the release of 4.4-rc8 I have built and > started

Re: rcu_preempt self-detected stall on CPU from 4.4-rc4, since 3.17

2016-01-04 Thread Ross Green
induce these stalls with heavy loading of the system. The only method I can be sure of is to leave the system quiet and let time go by till a stall occurs. Regards, Ross On Mon, Jan 4, 2016 at 9:00 AM, Ross Green wrote: > Thanks Paul for your analysis and investigation, > > I unders

Re: rcu_preempt self-detected stall on CPU from 4.4-rc4, since 3.17

2016-01-03 Thread Ross Green
! Please see the attachments. Regards, Ross On Sun, Jan 3, 2016 at 5:17 PM, Paul E. McKenney wrote: > On Sun, Jan 03, 2016 at 04:29:11PM +1100, Ross Green wrote: >> Still seeing these rcu_preempt stalls on kernels through to 4.4-rc7 >> >> Still have not found a sure fire

Re: rcu_preempt self-detected stall on CPU from 4.4-rc4, since 3.17

2016-01-02 Thread Ross Green
way back to 3.17. Most recent kernels have included 4.4-rc5 4.4-rc6 and 4.4-rc7 Regards, Ross On Fri, Dec 11, 2015 at 10:17 PM, Ross Green wrote: > I have been getting these stalls in kernels going back to 3.17. > > This stall occurs usually under light load but often requires several

rcu_preempt self-detected stall on CPU from 4.4-rc4, since 3.17

2015-12-11 Thread Ross Green
I have been getting these stalls in kernels going back to 3.17. This stall occurs usually under light load but often requires several days to show itself. I have not found any simple way to trigger the stall. Indeed heavy workloads seems not to show the fault. Anyone have any thoughts here? The

Re: [BISECTED] rcu_sched self-detected stall since 3.17

2015-12-01 Thread Ross Green
I too have traced a similar RCU stall all the way back to 3.17. Seems to affect RCU preempt code as well. I had not been able to find a sure fail way to trigger this and it could take several days running before problem arises. Ross -- To unsubscribe from this list: send the line "unsubscribe li