linux-kernel - Re: [PATCH -rt][RESEND] spin lock imbalance in ibm emac

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Message-Id: <1165853117.7764.5.camel@imap.mvista.com>
Date:	Mon, 11 Dec 2006 08:05:17 -0800
From:	Daniel Walker <dwalker@...sta.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH -rt][RESEND] spin lock imbalance in ibm emac

On Mon, 2006-12-11 at 16:59 +0100, Ingo Molnar wrote:
> * Daniel Walker <dwalker@...sta.com> wrote:
> 
> > On Mon, 2006-12-11 at 10:27 +0100, Ingo Molnar wrote:
> > > * Daniel Walker <dwalker@...sta.com> wrote:
> > > 
> > > > Sent this a long time ago, still exists. 
> > > > 
> > > > Signed-Off-By: Daniel Walker <dwalker@...sta.com>
> > > 
> > > hm, what does this do, and why isnt it upstream?
> > 
> > AFAIK, those locks are added in -rt . I'm not sure how they got in 
> > there, but they fix that driver when running in a thread. The driver 
> > has unsafe SMP locking, but the only system it runs on (PPC4xx) is 
> > uniprocessor. So it's not broken upstream per se.
> 
> ok, i've applied your patch.


What about the OMAP fix? that one's been sitting around for a while too.

Daniel

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