Re: [PATCH] sched/deadline: Fix bad accounting of nr_running

2014-02-17 Thread Juri Lelli
Hi, On 02/15/2014 05:59 AM, Steven Rostedt wrote: > My test suite was locking up hard when enabling mmiotracer. This was due > to the mmiotracer placing all but one CPU offline. I found this out > when I was able to reproduce the bug with just my stress-cpu-hotplug > test. This bug baffled me

Re: [PATCH] sched/deadline: Fix bad accounting of nr_running

2014-02-17 Thread Juri Lelli
Hi, On 02/15/2014 05:59 AM, Steven Rostedt wrote: My test suite was locking up hard when enabling mmiotracer. This was due to the mmiotracer placing all but one CPU offline. I found this out when I was able to reproduce the bug with just my stress-cpu-hotplug test. This bug baffled me because

Re: [PATCH] sched/deadline: Fix bad accounting of nr_running

2014-02-15 Thread Steven Rostedt
On Sat, 15 Feb 2014 10:52:07 +0100 Peter Zijlstra wrote: > On Fri, Feb 14, 2014 at 11:59:46PM -0500, Steven Rostedt wrote: > > diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c > > index 0dd5e09..84c2454 100644 > > --- a/kernel/sched/deadline.c > > +++ b/kernel/sched/deadline.c > >

Re: [PATCH] sched/deadline: Fix bad accounting of nr_running

2014-02-15 Thread Peter Zijlstra
On Fri, Feb 14, 2014 at 11:59:46PM -0500, Steven Rostedt wrote: > diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c > index 0dd5e09..84c2454 100644 > --- a/kernel/sched/deadline.c > +++ b/kernel/sched/deadline.c > @@ -844,14 +844,14 @@ static void __dequeue_task_dl(struct rq *rq, >

Re: [PATCH] sched/deadline: Fix bad accounting of nr_running

2014-02-15 Thread Peter Zijlstra
On Fri, Feb 14, 2014 at 11:59:46PM -0500, Steven Rostedt wrote: diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 0dd5e09..84c2454 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -844,14 +844,14 @@ static void __dequeue_task_dl(struct rq *rq, struct

Re: [PATCH] sched/deadline: Fix bad accounting of nr_running

2014-02-15 Thread Steven Rostedt
On Sat, 15 Feb 2014 10:52:07 +0100 Peter Zijlstra pet...@infradead.org wrote: On Fri, Feb 14, 2014 at 11:59:46PM -0500, Steven Rostedt wrote: diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 0dd5e09..84c2454 100644 --- a/kernel/sched/deadline.c +++

[PATCH] sched/deadline: Fix bad accounting of nr_running

2014-02-14 Thread Steven Rostedt
My test suite was locking up hard when enabling mmiotracer. This was due to the mmiotracer placing all but one CPU offline. I found this out when I was able to reproduce the bug with just my stress-cpu-hotplug test. This bug baffled me because it would not always trigger, and would only trigger on

[PATCH] sched/deadline: Fix bad accounting of nr_running

2014-02-14 Thread Steven Rostedt
My test suite was locking up hard when enabling mmiotracer. This was due to the mmiotracer placing all but one CPU offline. I found this out when I was able to reproduce the bug with just my stress-cpu-hotplug test. This bug baffled me because it would not always trigger, and would only trigger on