From: Arnd Bergmann <arnd@arndb.de>
To: Shachar Shemesh <lkml@shemesh.biz>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] new system call mknod64
Date: Tue, 22 Apr 2003 22:02:14 +0200 [thread overview]
Message-ID: <200304222004.h3MK4EWk014151@post.webmailer.de> (raw)
In-Reply-To: 20030422083014$0fe2@gated-at.bofh.it
Shachar Shemesh wrote:
>>On x86_64, the struct produces the same code as the scalar.
>>The same is true on s390x.
>>
> I don't know how x86_64 is doing, but x86 does not issue a bus error
> when unaligned value is being accessed. It is therefor reasonable for
> the compiler not to worry about it. If x86_64 is the same, the results
> you report seem like a reasonable feature of gcc, rather than a bug.
Right, from include/asm-*/unaligned.h, you can see which archs are
able to do unaligned accesses:
cris, i386, m68k, ppc, ppc64, s390, s390x and x86_64
Arnd <><
next parent reply other threads:[~2003-04-22 19:52 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030421215009$2052@gated-at.bofh.it>
[not found] ` <20030421231010$7ee3@gated-at.bofh.it>
[not found] ` <20030422000016$17e3@gated-at.bofh.it>
[not found] ` <20030422083014$0fe2@gated-at.bofh.it>
2003-04-22 20:02 ` Arnd Bergmann [this message]
2003-04-22 1:02 [PATCH] new system call mknod64 Andries.Brouwer
2003-04-22 1:32 ` H. Peter Anvin
2003-04-22 2:01 ` Jamie Lokier
2003-04-22 2:52 ` H. Peter Anvin
2003-04-22 6:00 ` jw schultz
2003-04-22 17:17 ` H. Peter Anvin
-- strict thread matches above, loose matches on Subject: below --
2003-04-21 21:48 Andries.Brouwer
2003-04-21 22:07 ` Linus Torvalds
2003-04-21 21:43 Andries.Brouwer
2003-04-21 23:02 ` H. Peter Anvin
2003-04-21 23:50 ` Jamie Lokier
2003-04-22 8:24 ` Shachar Shemesh
2003-04-20 22:12 Andries.Brouwer
2003-04-21 6:31 ` H. Peter Anvin
2003-04-20 21:26 Andries.Brouwer
2003-04-20 21:43 ` David S. Miller
2003-04-20 21:56 ` Linus Torvalds
2003-04-21 11:59 ` Roman Zippel
2003-04-21 18:01 ` Linus Torvalds
2003-04-21 18:10 ` Christoph Hellwig
2003-04-21 18:21 ` viro
2003-04-21 18:22 ` Linus Torvalds
2003-04-21 18:27 ` viro
2003-04-21 18:35 ` Linus Torvalds
2003-04-21 18:54 ` viro
2003-04-21 19:16 ` Jörn Engel
2003-04-21 18:35 ` Christoph Hellwig
2003-04-21 18:42 ` H. Peter Anvin
2003-04-21 18:44 ` Linus Torvalds
2003-04-21 18:47 ` Christoph Hellwig
2003-04-21 18:58 ` viro
2003-04-21 19:05 ` Linus Torvalds
2003-04-21 19:35 ` viro
2003-04-21 20:02 ` Linus Torvalds
2003-04-21 19:04 ` Linus Torvalds
2003-04-21 19:59 ` H. Peter Anvin
2003-04-21 18:51 ` H. Peter Anvin
2003-04-21 23:49 ` Roman Zippel
2003-04-20 20:34 Andries.Brouwer
2003-04-20 21:12 ` David S. Miller
2003-04-20 18:39 Andries.Brouwer
2003-04-20 18:52 ` Christoph Hellwig
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