From: Peter Zijlstra <peterz@infradead.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: mingo@kernel.org, tglx@linutronix.de, juri.lelli@arm.com,
xlpang@redhat.com, bigeasy@linutronix.de,
linux-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com,
jdesfossez@efficios.com, bristot@redhat.com
Subject: Re: [PATCH -v2 7/9] sched,tracing: Update trace_sched_pi_setprio()
Date: Tue, 27 Sep 2016 09:44:34 +0200 [thread overview]
Message-ID: <20160927074434.GO2794@worktop> (raw)
In-Reply-To: <20160926130430.3c188d66@grimm.local.home>
On Mon, Sep 26, 2016 at 01:04:30PM -0400, Steven Rostedt wrote:
> On Mon, 26 Sep 2016 14:32:20 +0200
> Peter Zijlstra <peterz@infradead.org> wrote:
>
> > Pass the PI donor task, instead of a numerical priority.
> >
> > Numerical priorities are not sufficient to describe state ever since
> > SCHED_DEADLINE.
> >
> > Annotate all sched tracepoints that are currently broken; fixing them
> > will bork userspace. *hate*.
>
> Perhaps display -1 for SCHED_DEADLINE tasks?
I think it already does that, but that's plenty useless.
next prev parent reply other threads:[~2016-09-27 7:44 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-26 12:32 [PATCH -v2 0/9] PI and assorted failings Peter Zijlstra
2016-09-26 12:32 ` [PATCH -v2 1/9] rtmutex: Deboost before waking up the top waiter Peter Zijlstra
2016-09-26 15:15 ` Steven Rostedt
2016-09-26 15:22 ` Peter Zijlstra
2016-09-26 15:35 ` Steven Rostedt
2016-09-26 15:37 ` Steven Rostedt
2016-09-26 15:41 ` Peter Zijlstra
2016-09-29 14:43 ` Thomas Gleixner
2016-09-29 14:49 ` Peter Zijlstra
2016-09-26 15:39 ` Peter Zijlstra
2016-09-28 9:07 ` Sebastian Andrzej Siewior
2016-09-28 9:24 ` Peter Zijlstra
2016-09-26 12:32 ` [PATCH -v2 2/9] sched/rtmutex/deadline: Fix a PI crash for deadline tasks Peter Zijlstra
2016-09-26 15:20 ` Steven Rostedt
2016-09-26 15:26 ` Peter Zijlstra
2016-09-29 14:49 ` Thomas Gleixner
2016-09-26 12:32 ` [PATCH -v2 3/9] sched/deadline/rtmutex: Dont miss the dl_runtime/dl_period update Peter Zijlstra
2016-09-26 16:03 ` Steven Rostedt
2016-09-29 14:48 ` Thomas Gleixner
2016-09-26 12:32 ` [PATCH -v2 4/9] rtmutex: Remove rt_mutex_fastunlock() Peter Zijlstra
2016-09-29 14:47 ` Thomas Gleixner
2016-09-26 12:32 ` [PATCH -v2 5/9] rtmutex: Clean up Peter Zijlstra
2016-09-26 16:09 ` Steven Rostedt
2016-09-29 14:51 ` Thomas Gleixner
2016-09-26 12:32 ` [PATCH -v2 6/9] sched/rtmutex: Refactor rt_mutex_setprio() Peter Zijlstra
2016-09-26 16:57 ` Steven Rostedt
2016-09-26 12:32 ` [PATCH -v2 7/9] sched,tracing: Update trace_sched_pi_setprio() Peter Zijlstra
2016-09-26 17:04 ` Steven Rostedt
2016-09-27 7:44 ` Peter Zijlstra [this message]
2016-09-26 12:32 ` [PATCH -v2 8/9] rtmutex: Fix PI chain order integrity Peter Zijlstra
2016-09-26 12:32 ` [PATCH -v2 9/9] rtmutex: Fix more prio comparisons Peter Zijlstra
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