From: Alan Modra <amodra@gmail.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: 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: Wed, 1 May 2013 13:24:25 +0930 [thread overview]
Message-ID: <20130501035425.GD5221@bubble.grove.modra.org> (raw)
In-Reply-To: <1367375060.11020.24.camel@edumazet-glaptop>
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.
Yup. This is not a powerpc64 specific problem. See
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52080
Fixed in 4.8.0 and 4.7.3.
--
Alan Modra
Australia Development Lab, IBM
WARNING: multiple messages have this Message-ID (diff)
From: Alan Modra <amodra@gmail.com>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Anton Blanchard <anton@samba.org>,
David Miller <davem@davemloft.net>,
netdev <netdev@vger.kernel.org>,
linuxppc-dev@lists.ozlabs.org, Paul Mackerras <paulus@samba.org>,
Ambrose Feinstein <ambrose@google.com>
Subject: Re: [PATCH net-next] af_unix: fix a fatal race with bit fields
Date: Wed, 1 May 2013 13:24:25 +0930 [thread overview]
Message-ID: <20130501035425.GD5221@bubble.grove.modra.org> (raw)
In-Reply-To: <1367375060.11020.24.camel@edumazet-glaptop>
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.
Yup. This is not a powerpc64 specific problem. See
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52080
Fixed in 4.8.0 and 4.7.3.
--
Alan Modra
Australia Development Lab, IBM
next prev parent reply other threads:[~2013-05-01 3:54 UTC|newest]
Thread overview: 44+ 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 1:12 ` Eric Dumazet
2013-05-01 1:39 ` Benjamin Herrenschmidt
2013-05-01 1:39 ` Benjamin Herrenschmidt
2013-05-01 7:36 ` David Miller
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 15:24 ` Eric Dumazet
2013-05-01 15:53 ` David Laight
2013-05-01 15:53 ` David Laight
2013-05-01 16:00 ` Eric Dumazet
2013-05-01 16:00 ` Eric Dumazet
2013-05-01 19:14 ` David Miller
2013-05-01 19:14 ` David Miller
2013-05-01 12:08 ` [PATCH " Ben Hutchings
2013-05-01 12:08 ` Ben Hutchings
2013-05-03 14:29 ` David Laight
2013-05-03 14:29 ` David Laight
2013-05-03 15:02 ` Eric Dumazet
2013-05-03 15:02 ` Eric Dumazet
2013-05-03 15:44 ` David Laight
2013-05-03 15:44 ` David Laight
2013-05-01 1:51 ` Anton Blanchard
2013-05-01 1:51 ` Anton Blanchard
2013-05-01 2:24 ` Eric Dumazet
2013-05-01 2:24 ` Eric Dumazet
2013-05-01 3:54 ` Alan Modra [this message]
2013-05-01 3:54 ` Alan Modra
2013-05-01 5:04 ` Eric Dumazet
2013-05-01 5:04 ` Eric Dumazet
2013-05-01 15:10 ` Stephen Hemminger
2013-05-01 15:10 ` Stephen Hemminger
2013-05-02 21:11 ` Benjamin Herrenschmidt
2013-05-02 21:11 ` Benjamin Herrenschmidt
2013-05-03 1:31 ` Alan Modra
2013-05-03 1:31 ` Alan Modra
2013-05-03 8:20 ` David Laight
2013-05-03 8:20 ` David Laight
2013-05-03 12:57 ` Benjamin Herrenschmidt
2013-05-03 14:14 ` Eric Dumazet
2013-05-03 14:14 ` Eric Dumazet
2013-05-02 17:02 ` Scott Wood
2013-05-02 17:02 ` Scott Wood
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