From: Steven Rostedt <rostedt@goodmis.org>
To: Vaibhav Nagarnaik <vnagarnaik@google.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@redhat.com>,
Laurent Chavey <chavey@google.com>,
Justin Teravest <teravest@google.com>,
David Sharp <dhsharp@google.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 1/3] trace: Make removal of ring buffer pages atomic
Date: Thu, 03 May 2012 14:54:05 -0400 [thread overview]
Message-ID: <1336071245.14207.104.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <CAL26m8J8=-yvtW+7F+XqTKgZs4NxiT3gSYJFC3RetjBwJvzL2g@mail.gmail.com>
On Thu, 2012-05-03 at 11:43 -0700, Vaibhav Nagarnaik wrote:
> On Thu, May 3, 2012 at 7:12 AM, Steven Rostedt <rostedt@goodmis.org> wrote:
> > It's also giving me errors when I try to enable events or anything else
> > when tracing_on is disabled.
>
> Yes, I had to add a check to see if resizing is safe. I re-used
> record_disabled in this patch for that purpose.
>
> In the next patch for "atomic addition of pages" I added a new field
> resize_disabled to guard against unsafe resizing. So with that patch,
> you won't see this behavior. It also fixes the issue with trace-cmd
> where the ring buffer doesn't get expanded.
Would it be possible to put that resize_disabled into the first patch so
we don't have this bug popping up in a git bisect?
-- Steve
next prev parent reply other threads:[~2012-05-03 18:54 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-26 22:59 [PATCH 0/5] Add dynamic updates to trace ring buffer Vaibhav Nagarnaik
2011-07-26 22:59 ` [PATCH 1/5] trace: Add a new readonly entry to report total buffer size Vaibhav Nagarnaik
2011-07-29 18:01 ` Steven Rostedt
2011-07-29 19:09 ` Vaibhav Nagarnaik
2011-07-26 22:59 ` [PATCH 2/5] trace: Add ring buffer stats to measure rate of events Vaibhav Nagarnaik
2011-07-29 18:10 ` Steven Rostedt
2011-07-29 19:10 ` Vaibhav Nagarnaik
2011-07-26 22:59 ` [PATCH 3/5] trace: Add per_cpu ring buffer control files Vaibhav Nagarnaik
2011-07-29 18:14 ` Steven Rostedt
2011-07-29 19:13 ` Vaibhav Nagarnaik
2011-07-29 21:25 ` Steven Rostedt
2011-07-26 22:59 ` [PATCH 4/5] trace: Make removal of ring buffer pages atomic Vaibhav Nagarnaik
2011-07-29 21:23 ` Steven Rostedt
2011-07-29 23:30 ` Vaibhav Nagarnaik
2011-07-30 1:12 ` Steven Rostedt
2011-07-30 1:50 ` David Sharp
2011-07-30 2:43 ` Steven Rostedt
2011-07-30 3:44 ` David Sharp
2011-07-26 22:59 ` [PATCH 5/5] trace: Make addition of pages in ring buffer atomic Vaibhav Nagarnaik
2011-08-16 21:46 ` [PATCH v2 0/5] Add dynamic updates to trace ring buffer Vaibhav Nagarnaik
2011-08-16 21:46 ` [PATCH v2 1/5] trace: Add a new readonly entry to report total buffer size Vaibhav Nagarnaik
2011-08-16 21:46 ` [PATCH v2 2/5] trace: Add ring buffer stats to measure rate of events Vaibhav Nagarnaik
2011-08-16 21:46 ` [PATCH v2 3/5] trace: Add per_cpu ring buffer control files Vaibhav Nagarnaik
2011-08-22 20:29 ` Steven Rostedt
2011-08-22 20:36 ` Vaibhav Nagarnaik
2011-08-22 22:09 ` [PATCH v3] " Vaibhav Nagarnaik
2011-08-23 0:49 ` Steven Rostedt
2011-08-23 1:16 ` Vaibhav Nagarnaik
2011-08-23 1:17 ` Vaibhav Nagarnaik
2011-09-03 2:45 ` Steven Rostedt
2011-09-06 18:56 ` Vaibhav Nagarnaik
2011-09-07 17:13 ` Steven Rostedt
2011-10-12 1:20 ` [PATCH v4 1/4] " Vaibhav Nagarnaik
2012-01-31 23:53 ` Vaibhav Nagarnaik
2012-02-02 2:42 ` Steven Rostedt
2012-02-02 19:20 ` Vaibhav Nagarnaik
2012-02-02 20:00 ` [PATCH v5 " Vaibhav Nagarnaik
2012-02-02 20:00 ` [PATCH v5 2/4] trace: Make removal of ring buffer pages atomic Vaibhav Nagarnaik
2012-04-21 4:27 ` Steven Rostedt
2012-04-23 17:31 ` Vaibhav Nagarnaik
2012-04-25 21:18 ` [PATCH v6 1/3] " Vaibhav Nagarnaik
2012-04-25 21:18 ` [PATCH v6 2/3] trace: Make addition of pages in ring buffer atomic Vaibhav Nagarnaik
2012-04-25 21:18 ` [PATCH v6 3/3] trace: change CPU ring buffer state from tracing_cpumask Vaibhav Nagarnaik
2012-05-03 1:55 ` [PATCH v6 1/3] trace: Make removal of ring buffer pages atomic Steven Rostedt
2012-05-03 6:40 ` Vaibhav Nagarnaik
2012-05-03 12:57 ` Steven Rostedt
2012-05-03 14:12 ` Steven Rostedt
2012-05-03 18:43 ` Vaibhav Nagarnaik
2012-05-03 18:54 ` Steven Rostedt [this message]
2012-05-03 18:54 ` Vaibhav Nagarnaik
2012-05-04 1:59 ` [PATCH v7 " Vaibhav Nagarnaik
2012-05-04 1:59 ` [PATCH v7 2/3] trace: Make addition of pages in ring buffer atomic Vaibhav Nagarnaik
2012-05-19 10:18 ` [tip:perf/core] ring-buffer: " tip-bot for Vaibhav Nagarnaik
2012-05-04 1:59 ` [PATCH v7 3/3] trace: change CPU ring buffer state from tracing_cpumask Vaibhav Nagarnaik
2012-05-19 10:21 ` [tip:perf/core] tracing: " tip-bot for Vaibhav Nagarnaik
2012-05-07 20:22 ` [PATCH v7 1/3] trace: Make removal of ring buffer pages atomic Steven Rostedt
2012-05-07 21:48 ` Vaibhav Nagarnaik
2012-05-08 0:14 ` Steven Rostedt
2012-05-09 3:38 ` Steven Rostedt
2012-05-09 5:00 ` Vaibhav Nagarnaik
2012-05-09 14:29 ` Steven Rostedt
2012-05-09 17:46 ` Vaibhav Nagarnaik
2012-05-09 17:54 ` Steven Rostedt
2012-05-19 10:17 ` [tip:perf/core] ring-buffer: " tip-bot for Vaibhav Nagarnaik
2012-02-02 20:00 ` [PATCH v5 3/4] trace: Make addition of pages in ring buffer atomic Vaibhav Nagarnaik
2012-02-02 20:00 ` [PATCH v5 4/4] trace: change CPU ring buffer state from tracing_cpumask Vaibhav Nagarnaik
2012-03-08 23:51 ` [PATCH v5 1/4] trace: Add per_cpu ring buffer control files Vaibhav Nagarnaik
2012-05-02 21:03 ` [tip:perf/core] ring-buffer: " tip-bot for Vaibhav Nagarnaik
2011-10-12 1:20 ` [PATCH v4 2/4] trace: Make removal of ring buffer pages atomic Vaibhav Nagarnaik
2011-10-12 1:20 ` [PATCH v4 3/4] trace: Make addition of pages in ring buffer atomic Vaibhav Nagarnaik
2011-10-12 1:20 ` [PATCH v4 4/4] trace: change CPU ring buffer state from tracing_cpumask Vaibhav Nagarnaik
2011-08-16 21:46 ` [PATCH v2 4/5] trace: Make removal of ring buffer pages atomic Vaibhav Nagarnaik
2011-08-23 3:27 ` Steven Rostedt
2011-08-23 18:55 ` Vaibhav Nagarnaik
2011-08-23 18:55 ` [PATCH v3 " Vaibhav Nagarnaik
2011-08-23 19:16 ` David Sharp
2011-08-23 19:20 ` Vaibhav Nagarnaik
2011-08-23 19:24 ` Steven Rostedt
2011-08-23 18:55 ` [PATCH v3 5/5] trace: Make addition of pages in ring buffer atomic Vaibhav Nagarnaik
2011-08-16 21:46 ` [PATCH v2 " Vaibhav Nagarnaik
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=1336071245.14207.104.camel@gandalf.stny.rr.com \
--to=rostedt@goodmis.org \
--cc=chavey@google.com \
--cc=dhsharp@google.com \
--cc=fweisbec@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=teravest@google.com \
--cc=vnagarnaik@google.com \
/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.