From: "Paul E. McKenney" <paulmck@linux.ibm.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org, mingo@redhat.com,
frederic@kernel.org, tglx@linutronix.de
Subject: Re: [PATCH] time/tick-broadcast: Fix tick_broadcast_offline() lockdep complaint
Date: Fri, 21 Jun 2019 06:34:14 -0700 [thread overview]
Message-ID: <20190621133414.GF26519@linux.ibm.com> (raw)
In-Reply-To: <20190621122927.GV3402@hirez.programming.kicks-ass.net>
On Fri, Jun 21, 2019 at 02:29:27PM +0200, Peter Zijlstra wrote:
> On Fri, Jun 21, 2019 at 05:16:30AM -0700, Paul E. McKenney wrote:
> > A pair of full hangs at boot (TASKS03 and TREE04), no console output
> > whatsoever. Not sure how these changes could cause that, but suspicion
> > falls on sched_tick_offload_init(). Though even that is a bit strange
> > because if so, why didn't TREE01 and TREE07 also hang? Again, looking
> > into it.
>
> Pesky details ;-)
And backing out to the earlier patch removes the hangs, though statistical
insignificance and all that.
Ah, in answer to your earlier question, if you want it in v5.3, you
will need to take it (but I do humbly request that you wait until it
actually works). If you don't take it, I won't be submitting it earlier
than v5.4. Either way, your choice!
Thanx, Paul
next prev parent reply other threads:[~2019-06-21 13:34 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-19 18:19 [PATCH] time/tick-broadcast: Fix tick_broadcast_offline() lockdep complaint Paul E. McKenney
2019-06-20 12:10 ` Peter Zijlstra
2019-06-20 16:01 ` Paul E. McKenney
2019-06-20 21:10 ` Peter Zijlstra
2019-06-20 22:13 ` Paul E. McKenney
2019-06-21 10:55 ` Peter Zijlstra
2019-06-21 12:16 ` Paul E. McKenney
2019-06-21 12:29 ` Peter Zijlstra
2019-06-21 13:34 ` Paul E. McKenney [this message]
2019-06-21 17:41 ` Paul E. McKenney
2019-06-21 17:50 ` Paul E. McKenney
2019-06-21 23:46 ` Paul E. McKenney
2019-06-24 23:12 ` Frederic Weisbecker
2019-06-24 23:44 ` Paul E. McKenney
2019-06-25 0:43 ` Frederic Weisbecker
2019-06-25 2:05 ` Paul E. McKenney
2019-06-25 7:51 ` Peter Zijlstra
2019-06-25 12:25 ` Frederic Weisbecker
2019-06-25 13:54 ` Paul E. McKenney
2019-06-25 14:05 ` Peter Zijlstra
2019-06-25 14:16 ` Paul E. McKenney
2019-06-25 16:20 ` Frederic Weisbecker
2019-06-25 16:52 ` Paul E. McKenney
2019-06-28 7:37 ` Peter Zijlstra
2019-06-28 12:17 ` Paul E. McKenney
2019-07-25 16:14 ` [tip:sched/core] " tip-bot for Paul E. McKenney
-- strict thread matches above, loose matches on Subject: below --
2019-05-27 14:39 [PATCH] " Paul E. McKenney
2019-05-28 20:07 ` Thomas Gleixner
2019-05-29 18:19 ` Paul E. McKenney
2019-05-30 12:58 ` Paul E. McKenney
2019-05-31 1:36 ` Frederic Weisbecker
2019-05-31 13:43 ` 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=20190621133414.GF26519@linux.ibm.com \
--to=paulmck@linux.ibm.com \
--cc=frederic@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--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.