linux-kernel - Re: PREEMPT_RT vs 'hrtimer: Prevent hrtimer_enqueue

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Message-ID: <1363923275.6345.93.camel@gandalf.local.home>
Date:	Thu, 21 Mar 2013 23:34:35 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Ben Hutchings <ben@...adent.org.uk>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Steven Rostedt <rostedt@...tedt.homelinux.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Leonid Shatz <leonid.shatz@...ellosystems.com>,
	Ingo Molnar <mingo@...e.hu>,
	Debian kernel maintainers <debian-kernel@...ts.debian.org>
Subject: Re: PREEMPT_RT vs 'hrtimer: Prevent hrtimer_enqueue_reprogram race'

On Fri, 2013-03-22 at 03:24 +0000, Ben Hutchings wrote:

> > Note, I posted a fix on Tuesday:
> > 
> > https://lkml.org/lkml/2013/3/19/369
> 
> Thanks.  I did search GMANE with some obvious terms but I think its
> index is lagging.

It didn't help that my subject had no mention of -rt in it :-(

> I'm rebasing the rt patch series generated with
> 'git format-patch v3.2.39..v3.2.39-rt59-rebase' on top of v3.2.41 (plus
> Debian changes, which introduce some trivial textual conflicts).

Ah, OK, I do it the opposite way. As the stable rt git never rebases, I
always merge the latest stable into my tree. I then create a rebased
tree as well. When I do that, I'm sure I'll end up fixing the patches up
pretty much the same as you have.

Thanks,

-- Steve



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