All of lore.kernel.org
 help / color / mirror / Atom feed
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Amit Shah <amit.shah@redhat.com>
Cc: linux-kernel@vger.kernel.org, riel@redhat.com, mingo@kernel.org,
	laijs@cn.fujitsu.com, dipankar@in.ibm.com,
	akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
	josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
	rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
	dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com,
	sbw@mit.edu
Subject: Re: [PATCH tip/core/rcu 1/2] rcu: Parallelize and economize NOCB kthread wakeups
Date: Tue, 12 Aug 2014 09:08:40 -0700	[thread overview]
Message-ID: <20140812160840.GD4752@linux.vnet.ibm.com> (raw)
In-Reply-To: <20140812052726.GH4184@grmbl.mre>

On Tue, Aug 12, 2014 at 10:57:26AM +0530, Amit Shah wrote:
> On (Mon) 11 Aug 2014 [13:34:21], Paul E. McKenney wrote:
> > On Tue, Aug 12, 2014 at 01:48:45AM +0530, Amit Shah wrote:

[ . . . ]

> > > > In addition "sendkey alt-sysrq-t" at the "(qemu)" prompt dumps all tasks'
> > > > stacks, which would also likely be useful information.
> > > 
> > > Nah, this doesn't work -- the guest's totally locked up.  I need a way
> > > to continuously dump buffers till the lockup happens, I suppose.
> > 
> > That is a bit surprising.  Is it possible that the system is OOMing
> > quickly due to grace periods not proceeding?  If so, maybe giving the
> > VM more memory would help.
> 
> I bumped it up to 1G and then 2G, same result.

OK.  I am then back at making the system dump core.

							Thanx, Paul


  reply	other threads:[~2014-08-12 16:08 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-07 22:48 [PATCH tip/core/rcu 0/2] Callback-offloading changes for 3.17 Paul E. McKenney
2014-07-11 13:35 ` [PATCH tip/core/rcu 1/2] rcu: Parallelize and economize NOCB kthread wakeups Paul E. McKenney
2014-07-11 13:35   ` [PATCH tip/core/rcu 2/2] rcu: Don't offload callbacks unless specifically requested Paul E. McKenney
2014-07-11 13:47     ` Frederic Weisbecker
2014-07-11 15:28       ` Paul E. McKenney
2014-08-08  8:40   ` [PATCH tip/core/rcu 1/2] rcu: Parallelize and economize NOCB kthread wakeups Amit Shah
2014-08-08 16:25     ` Paul E. McKenney
2014-08-08 17:37       ` Amit Shah
2014-08-08 18:18         ` Paul E. McKenney
2014-08-08 18:34           ` Amit Shah
2014-08-08 21:43             ` Paul E. McKenney
2014-08-08 21:46               ` Paul E. McKenney
2014-08-11  7:13                 ` Amit Shah
2014-08-11 16:28                   ` Paul E. McKenney
2014-08-11 19:41                     ` Amit Shah
2014-08-11 20:11                       ` Paul E. McKenney
2014-08-11 20:18                         ` Amit Shah
2014-08-11 20:34                           ` Paul E. McKenney
2014-08-12  3:45                             ` Paul E. McKenney
2014-08-12  5:33                               ` Amit Shah
2014-08-12 16:06                                 ` Paul E. McKenney
2014-08-12 21:39                                   ` Paul E. McKenney
2014-08-12 21:41                                     ` Paul E. McKenney
2014-08-12 21:44                                       ` Paul E. McKenney
2014-08-13  5:44                                       ` Amit Shah
2014-08-13 13:00                                         ` Paul E. McKenney
2014-08-13 14:18                                           ` Paul E. McKenney
2014-08-15  5:24                                           ` Amit Shah
2014-08-15 15:04                                             ` Paul E. McKenney
2014-08-18 17:53                                               ` Amit Shah
2014-08-19  4:01                                                 ` Paul E. McKenney
2014-08-22 12:24                                                   ` Amit Shah
2014-08-22 12:36                                                     ` Amit Shah
2014-08-22 12:56                                                       ` Amit Shah
2014-08-22 14:48                                                         ` Paul E. McKenney
2014-08-22 17:14                                                           ` Amit Shah
2014-08-22 17:37                                                             ` Amit Shah
2014-08-22 21:53                                                             ` Paul E. McKenney
2014-08-22 21:57                                                               ` Paul E. McKenney
2014-08-22 14:43                                                     ` Paul E. McKenney
2014-08-12  5:27                             ` Amit Shah
2014-08-12 16:08                               ` Paul E. McKenney [this message]
2014-08-23  7:43 Pranith Kumar
2014-08-23 16:51 ` Paul E. McKenney
2014-08-24  0:26   ` Pranith Kumar
2014-08-24  3:23     ` Paul E. McKenney
2014-08-24  3:39       ` Pranith Kumar
2014-08-24 14:36         ` Paul E. McKenney
2014-08-27  4:43 ` Amit Shah
2014-08-27 16:21   ` Paul E. McKenney
2014-08-27 16:43     ` Pranith Kumar
2014-08-27 17:08       ` Paul E. McKenney

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=20140812160840.GD4752@linux.vnet.ibm.com \
    --to=paulmck@linux.vnet.ibm.com \
    --cc=akpm@linux-foundation.org \
    --cc=amit.shah@redhat.com \
    --cc=dhowells@redhat.com \
    --cc=dipankar@in.ibm.com \
    --cc=dvhart@linux.intel.com \
    --cc=edumazet@google.com \
    --cc=fweisbec@gmail.com \
    --cc=josh@joshtriplett.org \
    --cc=laijs@cn.fujitsu.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mathieu.desnoyers@efficios.com \
    --cc=mingo@kernel.org \
    --cc=oleg@redhat.com \
    --cc=peterz@infradead.org \
    --cc=riel@redhat.com \
    --cc=rostedt@goodmis.org \
    --cc=sbw@mit.edu \
    --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.