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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: "Bjørn Mork" <bjorn@mork.no>,
	"Paul E. McKenney" <paul.mckenney@linaro.org>,
	linux-kernel@vger.kernel.org
Subject: Re: Bisected post-3.9 regression: Resume takes 5 times as much time as with v3.9
Date: Sun, 12 May 2013 18:35:18 -0700	[thread overview]
Message-ID: <20130513013518.GM3648@linux.vnet.ibm.com> (raw)
In-Reply-To: <20130512213430.GE24440@8bytes.org>

On Sun, May 12, 2013 at 11:34:30PM +0200, Joerg Roedel wrote:
> On Sun, May 12, 2013 at 01:57:48PM -0700, Paul E. McKenney wrote:
> > That does look pretty extreme!  If you build with CONFIG_RCU_NO_HZ=n,
> > but without the revert, do you still get the delays?
> 
> With CONFIG_RCU_NO_HZ=n (and no revert) the system boots fine, no boot
> delay. I also enabled some RCU debugging options (with
> CONFIG_RCU_NO_HZ=y), but didn't see anything so far.

OK, good -- we at least have an easy work-around while I am tracking
this down.  ;-)

							Thanx, Paul


  reply	other threads:[~2013-05-13  1:35 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-11 18:04 Bisected post-3.9 regression: Resume takes 5 times as much time as with v3.9 Bjørn Mork
2013-05-12 11:31 ` Paul E. McKenney
2013-05-12 16:13   ` Bjørn Mork
2013-05-12 16:27     ` Borislav Petkov
2013-05-12 16:56       ` Bjørn Mork
2013-05-12 17:20         ` Borislav Petkov
2013-05-13 11:30           ` Rafael J. Wysocki
2013-05-13 12:00             ` [PATCH] hibernate: Correct documentation Borislav Petkov
2013-05-14  6:34               ` Rob Landley
2013-05-14  7:42                 ` Borislav Petkov
2013-05-14 10:38     ` Bisected post-3.9 regression: Resume takes 5 times as much time as with v3.9 Paul E. McKenney
2013-05-12 18:29   ` Joerg Roedel
2013-05-12 20:57     ` Paul E. McKenney
2013-05-12 21:34       ` Joerg Roedel
2013-05-13  1:35         ` Paul E. McKenney [this message]
2013-05-13  6:00           ` Joerg Roedel
2013-05-13 14:00           ` Paul E. McKenney
2013-05-14 17:37             ` Joerg Roedel
2013-05-14 17:49               ` Paul E. McKenney

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