From: Ingo Molnar <mingo@elte.hu>
To: David Miller <davem@davemloft.net>
Cc: tglx@linutronix.de, torvalds@linux-foundation.org,
harvey.harrison@gmail.com, akpm@linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] bitops: remove "optimizations"
Date: Tue, 29 Apr 2008 16:20:39 +0200 [thread overview]
Message-ID: <20080429142039.GD26461@elte.hu> (raw)
In-Reply-To: <20080429.053412.15412725.davem@davemloft.net>
* David Miller <davem@davemloft.net> wrote:
> From: David Miller <davem@davemloft.net>
> Date: Tue, 29 Apr 2008 03:03:32 -0700 (PDT)
>
> > From: Thomas Gleixner <tglx@linutronix.de>
> > Date: Tue, 29 Apr 2008 12:01:02 +0200 (CEST)
> >
> > > Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> >
> > Acked-by: David S. Miller <davem@davemloft.net>
>
> Ironically, I just bisected sparc64 bootup failures to the following
> changeset. It's very late here, and I haven't looked into the
> details, but it seems to wedge in free_area_init_nodes() on a non-NUMA
> system with CONFIG_NUMA disabled.
hm. I guess the next thing you plan to check is whether Thomas's patch
fixes it?
> Isn't it funny that this optimization not only was useless, but also
> broke things. :-/
yeah and sorry :-/ It would still be nice to understand why this
happened, it looks like a weird (and unexpected) interaction.
Ingo
next prev parent reply other threads:[~2008-04-29 14:22 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-27 20:19 [PATCH] bitops: simplify generic bit finding functions Harvey Harrison
2008-04-27 20:26 ` Linus Torvalds
2008-04-27 20:29 ` Harvey Harrison
2008-04-27 20:36 ` Al Viro
2008-04-27 20:38 ` Harvey Harrison
2008-04-27 20:38 ` Linus Torvalds
2008-04-27 21:02 ` Al Viro
2008-04-28 14:04 ` Thomas Gleixner
2008-04-28 15:10 ` Alexander van Heukelum
2008-04-28 15:58 ` Thomas Gleixner
2008-04-28 16:25 ` Linus Torvalds
2008-04-28 16:47 ` Thomas Gleixner
2008-04-28 16:54 ` Linus Torvalds
2008-04-28 19:26 ` Thomas Gleixner
2008-04-28 19:37 ` Linus Torvalds
2008-04-28 21:55 ` Ingo Molnar
2008-04-29 10:01 ` [PATCH] bitops: remove "optimizations" Thomas Gleixner
2008-04-29 10:03 ` David Miller
2008-04-29 12:34 ` David Miller
2008-04-29 14:20 ` Ingo Molnar [this message]
2008-04-29 22:31 ` David Miller
2008-04-29 16:51 ` Thomas Gleixner
2008-04-29 22:58 ` David Miller
2008-04-29 23:30 ` David Miller
2008-04-28 19:57 ` [PATCH] bitops: simplify generic bit finding functions Andi Kleen
2008-04-28 14:58 ` Alexander van Heukelum
2008-04-28 14:32 ` Alexander van Heukelum
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