Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Vincent, On Thu, Apr 26, 2018 at 12:31 PM, Vincent Guittot wrote: > Le Thursday 26 Apr 2018 à 00:56:03 (+0200), Niklas Söderlund a écrit : >> Here are the result, sorry for the delay. >> >> On 2018-04-23 11:54:20 +0200, Vincent Guittot wrote: >> >> [snip] >> >> >

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Vincent, On 2018-04-26 17:27:24 +0200, Vincent Guittot wrote: > Hi Niklas, > > >> Thanks for the trace, I have been able to catch a problem with it. > >> Could you test the patch below to confirm that the problem is solved ? > >> The patch apply on-top of > >> c18bb396d3d261eb ("Merge > >>

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Niklas, >> Thanks for the trace, I have been able to catch a problem with it. >> Could you test the patch below to confirm that the problem is solved ? >> The patch apply on-top of >> c18bb396d3d261eb ("Merge >> git://git.kernel.org/pub/scm/linux/kernel/git/davem/net") > > I can confirm that

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Vincent, Thanks for all your help. On 2018-04-26 12:31:33 +0200, Vincent Guittot wrote: > Hi Niklas, > > Le Thursday 26 Apr 2018 à 00:56:03 (+0200), Niklas Söderlund a écrit : > > Hi Vincent, > > > > Here are the result, sorry for the delay. > > > > On 2018-04-23 11:54:20 +0200, Vincent

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

On Thu, Apr 26, 2018 at 12:31:33PM +0200, Vincent Guittot wrote: > From: Vincent Guittot > Date: Thu, 26 Apr 2018 12:19:32 +0200 > Subject: [PATCH] sched/fair: fix the update of blocked load when newly idle > MIME-Version: 1.0 > Content-Type: text/plain; charset=UTF-8

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Niklas, Le Thursday 26 Apr 2018 à 00:56:03 (+0200), Niklas Söderlund a écrit : > Hi Vincent, > > Here are the result, sorry for the delay. > > On 2018-04-23 11:54:20 +0200, Vincent Guittot wrote: > > [snip] > > > > > Thanks for the report. Can you re run with the following trace-cmd

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Niklas, Le Monday 23 Apr 2018 à 00:18:27 (+0200), Niklas Söderlund a écrit : > Hi Vincent, > > On 2018-04-20 18:00:13 +0200, Vincent Guittot wrote: > > [snip] > > > > > > > You results are similar to Heiner's ones. The problem is still there > > > even if we only kick ilb which mainly send

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

On Fri, Apr 20, 2018 at 9:00 AM, Vincent Guittot wrote: [..] > > Le Saturday 14 Apr 2018 à 13:24:20 (+0200), Vincent Guittot a écrit : >> Hi Niklas, >> >> On 13 April 2018 at 00:39, Niklas Söderlund >> wrote: >> > Hi Vincent, >> > >> >

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Heiner and Niklas, Le Saturday 14 Apr 2018 à 13:24:20 (+0200), Vincent Guittot a écrit : > Hi Niklas, > > On 13 April 2018 at 00:39, Niklas Söderlund > wrote: > > Hi Vincent, > > > > Thanks for helping trying to figure this out. > > > > On 2018-04-12 15:30:31

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

On 13 April 2018 at 22:38, Niklas Söderlund wrote: > Hi Vincent, > > On 2018-04-12 13:15:19 +0200, Niklas Söderlund wrote: >> Hi Vincent, >> >> Thanks for your feedback. >> >> On 2018-04-12 12:33:27 +0200, Vincent Guittot wrote: >> > Hi Niklas, >> > >> > On 12 April

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Niklas, On 13 April 2018 at 00:39, Niklas Söderlund wrote: > Hi Vincent, > > Thanks for helping trying to figure this out. > > On 2018-04-12 15:30:31 +0200, Vincent Guittot wrote: > > [snip] > >> >> I'd like to narrow the problem a bit more with the 2 patchies

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Heiner, On 12 April 2018 at 21:43, Heiner Kallweit wrote: I'm going to prepare a debug patch to spy what's happening when entering idle >> >> I'd like to narrow the problem a bit more with the 2 patchies aboves. Can >> you try >> them separatly on top of

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Vincent, On 2018-04-12 13:15:19 +0200, Niklas Söderlund wrote: > Hi Vincent, > > Thanks for your feedback. > > On 2018-04-12 12:33:27 +0200, Vincent Guittot wrote: > > Hi Niklas, > > > > On 12 April 2018 at 11:18, Niklas Söderlund > > wrote: > > > Hi Vincent,

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Vincent, Thanks for helping trying to figure this out. On 2018-04-12 15:30:31 +0200, Vincent Guittot wrote: [snip] > > I'd like to narrow the problem a bit more with the 2 patchies aboves. Can you > try > them separatly on top of c18bb396d3d261eb ("Merge >

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Vincent, On 2018-04-12 12:33:27 +0200, Vincent Guittot wrote: [snip[ > > Can you send me your config ? > > I'm going to prepare a debug patch to spy what's happening when entering idle I'm sorry i missed this request when first reading your reply, I'm using

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Am 12.04.2018 um 15:30 schrieb Vincent Guittot: > Heiner, Niklas, > > Le Thursday 12 Apr 2018 à 13:15:19 (+0200), Niklas Söderlund a écrit : >> Hi Vincent, >> >> Thanks for your feedback. >> >> On 2018-04-12 12:33:27 +0200, Vincent Guittot wrote: >>> Hi Niklas, >>> >>> On 12 April 2018 at 11:18,

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Vincent, Thanks for your feedback. On 2018-04-12 12:33:27 +0200, Vincent Guittot wrote: > Hi Niklas, > > On 12 April 2018 at 11:18, Niklas Söderlund > wrote: > > Hi Vincent, > > > > I have observed issues running on linus/master from a few days back [1]. > >

Re: Potential problem with 31e77c93e432dec7 ("sched/fair: Update blocked load when newly idle")

Hi Niklas, On 12 April 2018 at 11:18, Niklas Söderlund wrote: > Hi Vincent, > > I have observed issues running on linus/master from a few days back [1]. > I'm running on a Renesas Koelsch board (arm32) and I can trigger a issue > by X forwarding the v4l2 test