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
next prev parent 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]
-- strict thread matches above, loose matches on Subject: below --
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
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