All of lore.kernel.org
 help / color / mirror / Atom feed
From: Tejun Heo <tj@kernel.org>
To: Jason Baron <jbaron@redhat.com>, Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: Re: [PATCH][GIT PULL] tracing: Fix compile issue for trace_sched_wakeup.c
Date: Fri, 22 Oct 2010 10:16:40 +0200	[thread overview]
Message-ID: <4CC14868.60809@kernel.org> (raw)
In-Reply-To: <20101022014441.GA1948@redhat.com>

Hello,

On 10/22/2010 03:44 AM, Jason Baron wrote:
> (adding Tejun to the 'cc list)
> 
> I finally found that we actually continue to run after the above
> apparent 'hang'. That is, we continue to make progress updating the jump
> labels. And doing a dump of all the system tasks at the time of the hang
> showed the processes in various places besides the stop machine threads.
> Thus, I thought that perhaps, for some reason the stop machine threads
> weren't being scheduled.
> 
> Thus, I tried commenting out the special scheduling that is set up for
> stop machine threads, and that fixed the hang. I haven't yet looked into
> what might be going wrong with that scheduling...but maybe somebody else
> knows...

I'm afraid I don't have much idea about the new scheduling class.  I
liked the idea but Peter did all the hard working on it.  Peter?

Thanks.

-- 
tejun

      parent reply	other threads:[~2010-10-22  8:17 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-19 17:11 [PATCH][GIT PULL] tracing: Fix compile issue for trace_sched_wakeup.c Steven Rostedt
2010-10-19 18:41 ` Ingo Molnar
2010-10-20 15:40   ` Ingo Molnar
2010-10-20 16:37     ` Steven Rostedt
2010-10-20 18:40       ` Ingo Molnar
2010-10-20 16:43     ` Jason Baron
2010-10-20 18:33       ` Ingo Molnar
2010-10-21 11:09         ` Ingo Molnar
2010-10-22 17:58           ` Jason Baron
2010-10-22 18:24             ` Ingo Molnar
2010-10-22 18:39               ` Jason Baron
2010-10-23 20:02                 ` Ingo Molnar
2010-10-24  0:53                   ` Steven Rostedt
2010-10-24 11:25                     ` Ingo Molnar
2010-10-25  8:59                       ` Ingo Molnar
2010-10-25  9:30                         ` Ingo Molnar
2010-10-25 11:45                           ` Ingo Molnar
2010-10-25 12:10                             ` Ingo Molnar
2010-10-25 12:18                               ` Peter Zijlstra
2010-10-25 12:32                                 ` Ingo Molnar
2010-10-25 15:47                                 ` Peter Zijlstra
2010-10-25 16:07                                   ` Peter Zijlstra
2010-10-25 17:25                                   ` Ingo Molnar
2010-10-25 17:32                                     ` Ingo Molnar
2010-10-25 17:45                                   ` Peter Zijlstra
2010-10-25 17:52                                     ` Jason Baron
2010-10-30 10:42                                     ` [tip:perf/urgent] jump label: Add work around to i386 gcc asm goto bug tip-bot for Steven Rostedt
2010-10-25 15:55                   ` [PATCH][GIT PULL] tracing: Fix compile issue for trace_sched_wakeup.c Jason Baron
2010-10-25 16:09                     ` Peter Zijlstra
2010-10-22 21:42               ` Jason Baron
2010-10-23  4:41                 ` Steven Rostedt
2010-10-21  2:58       ` Masami Hiramatsu
2010-10-21  7:22         ` Peter Zijlstra
2010-10-21 11:01           ` Steven Rostedt
2010-10-21 11:03             ` Peter Zijlstra
2010-10-21 12:45               ` Steven Rostedt
2010-10-21 13:50               ` Jason Baron
2010-10-22  4:56               ` Masami Hiramatsu
2010-10-21 14:00         ` Jason Baron
2010-10-21 11:14     ` Steven Rostedt
2010-10-21 11:26       ` Ingo Molnar
2010-10-21 13:55         ` Jason Baron
2010-10-21 14:43           ` Ingo Molnar
2010-10-22  1:44         ` Jason Baron
2010-10-22  8:14           ` Peter Zijlstra
2010-10-22 14:13             ` Jason Baron
2010-10-22 14:23               ` Peter Zijlstra
2010-10-22 14:36                 ` Steven Rostedt
2010-10-22 14:36                 ` Jason Baron
2010-10-22  8:16           ` Tejun Heo [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4CC14868.60809@kernel.org \
    --to=tj@kernel.org \
    --cc=a.p.zijlstra@chello.nl \
    --cc=acme@redhat.com \
    --cc=akpm@linux-foundation.org \
    --cc=fweisbec@gmail.com \
    --cc=hpa@zytor.com \
    --cc=jbaron@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    --cc=rostedt@goodmis.org \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.