From: Jes Sorensen <jes@sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: torvalds@osdl.org, ak@suse.de, linux-kernel@vger.kernel.org,
linux-ia64@vger.kernel.org
Subject: Re: [patch] avoid unaligned access when accessing poll stack
Date: Sun, 02 Apr 2006 14:49:35 +0000 [thread overview]
Message-ID: <442FE47F.9040008@sgi.com> (raw)
In-Reply-To: <20060331102053.2a440f81.akpm@osdl.org>
Andrew Morton wrote:
> Jes Sorensen <jes@sgi.com> wrote:
>> [PATCH] Optimize select/poll by putting small data sets on the stack
>> resulted in the poll stack being 4-byte aligned on 64-bit
>> architectures, causing misaligned accesses to elements in the array.
>
> How come you noticed this but I did not?
Heh,
The ia64 kernel spits out nifty little messages moaning about this since
it goes to firmware emulation. They were all in the middle of the bootup
messages making them a bit harder to notice as well.
Cheers,
Jes
WARNING: multiple messages have this Message-ID (diff)
From: Jes Sorensen <jes@sgi.com>
To: Andrew Morton <akpm@osdl.org>
Cc: torvalds@osdl.org, ak@suse.de, linux-kernel@vger.kernel.org,
linux-ia64@vger.kernel.org
Subject: Re: [patch] avoid unaligned access when accessing poll stack
Date: Sun, 02 Apr 2006 16:49:35 +0200 [thread overview]
Message-ID: <442FE47F.9040008@sgi.com> (raw)
In-Reply-To: <20060331102053.2a440f81.akpm@osdl.org>
Andrew Morton wrote:
> Jes Sorensen <jes@sgi.com> wrote:
>> [PATCH] Optimize select/poll by putting small data sets on the stack
>> resulted in the poll stack being 4-byte aligned on 64-bit
>> architectures, causing misaligned accesses to elements in the array.
>
> How come you noticed this but I did not?
Heh,
The ia64 kernel spits out nifty little messages moaning about this since
it goes to firmware emulation. They were all in the middle of the bootup
messages making them a bit harder to notice as well.
Cheers,
Jes
next prev parent reply other threads:[~2006-04-02 14:49 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-31 15:38 [patch] avoid unaligned access when accessing poll stack Jes Sorensen
2006-03-31 15:38 ` Jes Sorensen
2006-03-31 16:00 ` Andi Kleen
2006-03-31 16:00 ` Andi Kleen
2006-03-31 16:18 ` Jes Sorensen
2006-03-31 16:18 ` Jes Sorensen
2006-04-01 2:35 ` Mitchell Blank Jr
2006-04-01 2:35 ` Mitchell Blank Jr
2006-04-01 2:44 ` Andi Kleen
2006-04-01 2:44 ` Andi Kleen
2006-04-01 3:39 ` Mitchell Blank Jr
2006-04-01 3:39 ` Mitchell Blank Jr
2006-03-31 16:37 ` OGAWA Hirofumi
2006-03-31 16:37 ` OGAWA Hirofumi
2006-03-31 16:53 ` Andi Kleen
2006-03-31 16:53 ` Andi Kleen
2006-03-31 17:16 ` OGAWA Hirofumi
2006-03-31 17:16 ` OGAWA Hirofumi
2006-03-31 17:18 ` Andi Kleen
2006-03-31 17:18 ` Andi Kleen
2006-03-31 17:40 ` OGAWA Hirofumi
2006-03-31 17:40 ` OGAWA Hirofumi
2006-03-31 17:19 ` OGAWA Hirofumi
2006-03-31 17:19 ` OGAWA Hirofumi
2006-03-31 18:20 ` Andrew Morton
2006-03-31 18:20 ` Andrew Morton
2006-04-02 14:49 ` Jes Sorensen [this message]
2006-04-02 14:49 ` Jes Sorensen
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