From: Arnaldo Carvalho de Melo <acme@redhat.com>
To: Peter Hurley <peter@hurleysoftware.com>
Cc: David Ahern <dsahern@gmail.com>,
Stephane Eranian <eranian@google.com>,
LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
"mingo@elte.hu" <mingo@elte.hu>, Jiri Olsa <jolsa@redhat.com>,
Eric Dumazet <edumazet@google.com>
Subject: Re: [BUG] perf top: --stdio causes continuous refresh
Date: Tue, 11 Feb 2014 10:14:11 -0200 [thread overview]
Message-ID: <20140211121411.GA4368@infradead.org> (raw)
In-Reply-To: <52F987CE.7010300@hurleysoftware.com>
Em Mon, Feb 10, 2014 at 09:15:42PM -0500, Peter Hurley escreveu:
> >Bisected it down to:
> >eb3e4668bd9e0bbda592e830e889f137e44ec9e4 is the first bad commit
> >Author: Peter Hurley <peter@hurleysoftware.com>
> >Date: Mon Dec 2 14:24:42 2013 -0500
> > n_tty: Un-inline slow-path n_tty_receive_char()
> >In a hurry now, will continue later, trying to understand what is the problem
> >introduced by the above cset...
> >Need to revert just this one to confirm that it is the culprit, etc.
> Thanks for the report and bisect. Seems unlikely this commit is the
> cause, but very likely to be some change I made since 3.13, since
> I can repro on 3.14-rc1 but not on 3.13.2 -stable. I can also repro
> this on 3.12 + the patch stack from me for 3.13 and 3.14.
> I'm looking into this now.
I just reverted just this cset and the problem persisted, so I'll wait
for you on this one :-)
- Arnaldo
next prev parent reply other threads:[~2014-02-11 12:14 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-05 21:25 [BUG] perf top: --stdio causes continuous refresh Stephane Eranian
2014-02-05 23:12 ` Stephane Eranian
2014-02-06 13:56 ` Arnaldo Carvalho de Melo
2014-02-06 13:58 ` Stephane Eranian
2014-02-06 14:07 ` Arnaldo Carvalho de Melo
2014-02-06 14:09 ` Arnaldo Carvalho de Melo
2014-02-06 15:24 ` Stephane Eranian
2014-02-06 17:48 ` David Ahern
2014-02-06 19:21 ` Arnaldo Carvalho de Melo
2014-02-06 19:28 ` Arnaldo Carvalho de Melo
2014-02-06 20:21 ` Stephane Eranian
2014-02-10 21:03 ` Arnaldo Carvalho de Melo
2014-02-11 2:15 ` Peter Hurley
2014-02-11 12:14 ` Arnaldo Carvalho de Melo [this message]
2014-02-11 12:18 ` Peter Hurley
2014-02-11 16:49 ` [PATCH] n_tty: Fix poll() when TIME_CHAR and MIN_CHAR == 0 Peter Hurley
2014-02-11 18:31 ` David Ahern
2014-02-11 18:32 ` Eric Dumazet
2014-02-11 20:50 ` Arnaldo Carvalho de Melo
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