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From: Scott Wood <scottwood@freescale.com>
To: Alan Modra <amodra@gmail.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
	netdev <netdev@vger.kernel.org>,
	Ambrose Feinstein <ambrose@google.com>,
	Paul Mackerras <paulus@samba.org>,
	Anton Blanchard <anton@samba.org>,
	linuxppc-dev@lists.ozlabs.org, David Miller <davem@davemloft.net>
Subject: Re: [PATCH net-next] af_unix: fix a fatal race with bit fields
Date: Thu, 2 May 2013 12:02:25 -0500	[thread overview]
Message-ID: <1367514145.24411.8@snotra> (raw)
In-Reply-To: <20130501035425.GD5221@bubble.grove.modra.org> (from amodra@gmail.com on Tue Apr 30 22:54:25 2013)

On 04/30/2013 10:54:25 PM, Alan Modra wrote:
> On Tue, Apr 30, 2013 at 07:24:20PM -0700, Eric Dumazet wrote:
> > 	li 11,1
> > 	ld 0,0(9)
> > 	rldimi 0,11,31,32
> > 	std 0,0(9)
> > 	blr
> > 	.ident	"GCC: (GNU) 4.6.3"
> >
> > You can see "ld 0,0(9)" is used : its a 64 bit load.
>=20
> Yup.  This is not a powerpc64 specific problem.  See
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D52080
> Fixed in 4.8.0 and 4.7.3.

FWIW (especially if a GCC version check is added), it seems to have =20
been fixed as far back as 4.7.1, not just 4.7.3.

-Scott=

      parent reply	other threads:[~2013-05-02 17:02 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-01  1:12 [PATCH net-next] af_unix: fix a fatal race with bit fields Eric Dumazet
2013-05-01  1:39 ` Benjamin Herrenschmidt
2013-05-01  7:36   ` David Miller
2013-05-01  8:08     ` Benjamin Herrenschmidt
2013-05-01 15:24     ` [PATCH v2 " Eric Dumazet
2013-05-01 15:53       ` David Laight
2013-05-01 16:00         ` Eric Dumazet
2013-05-01 19:14       ` David Miller
2013-05-01 12:08   ` [PATCH " Ben Hutchings
2013-05-03 14:29   ` David Laight
2013-05-03 15:02     ` Eric Dumazet
2013-05-03 15:44       ` David Laight
2013-05-01  1:51 ` Anton Blanchard
2013-05-01  2:24   ` Eric Dumazet
2013-05-01  3:54     ` Alan Modra
2013-05-01  5:04       ` Eric Dumazet
2013-05-01 15:10         ` Stephen Hemminger
2013-05-02 21:11           ` Benjamin Herrenschmidt
2013-05-03  1:31         ` Alan Modra
2013-05-03  8:20           ` David Laight
2013-05-03 12:57           ` Benjamin Herrenschmidt
2013-05-03 14:14           ` Eric Dumazet
2013-05-02 17:02       ` Scott Wood [this message]

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