linux-kernel - Re: Regression in RCU subsystem in latest mainline kernel

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Message-ID: <1371477109.18733.7.camel@gandalf.local.home>
Date:	Mon, 17 Jun 2013 09:51:49 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Rojhalat Ibrahim <imr@...chenk.de>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	paulmck@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: Regression in RCU subsystem in latest mainline kernel

On Mon, 2013-06-17 at 15:21 +0200, Rojhalat Ibrahim wrote:
> On Friday 14 June 2013 22:17:34 Steven Rostedt wrote:
> > On Sat, 2013-06-15 at 12:02 +1000, Benjamin Herrenschmidt wrote:
> > > On Fri, 2013-06-14 at 17:06 -0400, Steven Rostedt wrote:
> > > > I was pretty much able to reproduce this on my PA Semi PPC box. Funny
> > > > thing is, when I type on the console, it makes progress. Anyway, it
> > > > seems that powerpc has an issue with irq_work(). I'll try to get some
> > > > time either tonight or next week to figure it out.
> > > 
> > > Does this help ?
> > 
> > It did for me. Rojhalat, did this fix your issue too?
> > 
> 
> FWIW, since the fix is already applied, but it fixes my problem too.
> 

Thanks for the update. Yeah, Ben was about to send a queue to Linus, and
as this proved to fix it for me, he felt that it needed to go in that
queue instead of waiting for an update.

But I do appreciate the update as I wasn't 100% that this would fix the
problem for you too.

-- Steve


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