linux-kernel - Re: ftrace introduces instability into kernel 2.6.27(-rc2,-rc3)

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Message-ID: <alpine.DEB.1.10.0808201431140.3035@gandalf.stny.rr.com>
Date:	Wed, 20 Aug 2008 14:33:57 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Eran Liberty <liberty@...ricom.com>
cc:	Jon Smirl <jonsmirl@...il.com>,
	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>,
	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
	Steven Rostedt <srostedt@...hat.com>,
	Alan Modra <amodra@....ibm.com>,
	Scott Wood <scottwood@...escale.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: Re: ftrace introduces instability into kernel 2.6.27(-rc2,-rc3)


On Wed, 20 Aug 2008, Eran Liberty wrote:
> mon> X
> ~ #
> 
> And took it for a test drive
> ~# while [ 1 ] ; do find / > /dev/null ; echo .  ; done
> .
> .
> .
> [ 10 min later ]
> .
> .
> .
> 
> Stable! Yeepee.

Eran, thanks a lot for testing this!

> 
> So how do we get this to be right in the first place and everywhere?
> 

This is a bug in gcc, and should be mentioned to the gcc maintainers.

-- Steve

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