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From: Andi Kleen <ak@muc.de>
To: davidm@hpl.hp.com
Cc: Andi Kleen <ak@muc.de>, Stephen Rothwell <sfr@canb.auug.org.au>,
	Linus <torvalds@transmeta.com>,
	LKML <linux-kernel@vger.kernel.org>,
	anton@samba.org, "David S. Miller" <davem@redhat.com>,
	schwidefsky@de.ibm.com, ralf@gnu.org, willy@debian.org
Subject: Re: [PATCH] Start of compat32.h (again)
Date: Wed, 27 Nov 2002 10:01:13 +0100	[thread overview]
Message-ID: <20021127090113.GA5491@averell> (raw)
In-Reply-To: <15844.34389.396428.645047@napali.hpl.hp.com>

On Wed, Nov 27, 2002 at 09:46:13AM +0100, David Mosberger wrote:
> >>>>> On Wed, 27 Nov 2002 09:29:18 +0100, Andi Kleen <ak@muc.de> said:
> 
>   Andi> But the 32bit user space surely doesn't care about any garbage
>   Andi> in the upper 32bits, no ?
> 
> The user-space won't, but the kernel exit path might.  Remember that

True. The signal return path checking for the 5xx errnos expects
them to be 64bit extended. I now even vaguely remember an obscure bug I once 
saw on x86-64 with an 32bit application actually seeing ERESTARTSYS that might
just have been caused by such an issue.

Thanks for pointing that out.
-Andi

  reply	other threads:[~2002-11-27  8:55 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-11-27  7:42 [PATCH] Start of compat32.h (again) Stephen Rothwell
2002-11-27  7:58 ` David S. Miller
2002-11-27 13:00   ` Stephen Rothwell
2002-11-28  5:27     ` David S. Miller
2002-11-27 18:51   ` Linus Torvalds
2002-11-28  5:34     ` David S. Miller
2002-11-27  8:00 ` David Mosberger
2002-11-27  8:06   ` David S. Miller
2002-11-27  8:29   ` Andi Kleen
2002-11-27  8:46     ` David Mosberger
2002-11-27  9:01       ` Andi Kleen [this message]
2002-11-27  9:57       ` David S. Miller
2002-11-27 17:10         ` David Mosberger
2002-11-28  5:29           ` David S. Miller
2002-11-27 12:49     ` Alan Cox
2002-11-30 20:34     ` Ralf Baechle
2002-11-27 17:18 ` Linus Torvalds
2002-11-28  5:22   ` Stephen Rothwell
2002-11-28  5:26     ` David S. Miller
2002-11-29  2:36       ` Stephen Rothwell
2002-12-01 18:54       ` Linus Torvalds
2002-12-02  4:46         ` David S. Miller
2002-12-02  4:57           ` Stephen Rothwell
2002-12-02  6:17             ` David S. Miller
2002-12-02  7:39           ` Richard Henderson
2002-12-02  7:44             ` David S. Miller
2002-12-02  7:59             ` Ralf Baechle
2002-12-02  8:01               ` David S. Miller
2002-12-04 11:22                 ` Pavel Machek
2002-12-05 21:04                   ` David S. Miller
2002-11-28  5:31   ` David S. Miller
2002-11-29  4:45     ` [PATCH] 32 bit consolidation 1/Many (was: [PATCH] Start of compat32.h (again)) Stephen Rothwell
2002-11-29  4:52       ` [PATCH] 32 bit consolidation 2/Many Stephen Rothwell
     [not found] <Pine.LNX.4.44.0212011047440.12964-100000@home.transmeta.com.suse.lists.linux.kernel>
     [not found] ` <1038804400.4411.4.camel@rth.ninka.net.suse.lists.linux.kernel>
2002-12-02  8:13   ` [PATCH] Start of compat32.h (again) Andi Kleen
2002-12-02  8:28     ` David S. Miller
2002-12-02  9:07       ` Andi Kleen
2002-12-02  9:36         ` Jakub Jelinek
2002-12-02 17:01           ` Mikael Pettersson
2002-12-02 10:16         ` David S. Miller
2002-12-04 11:19           ` Pavel Machek
2002-12-05 21:06             ` David S. Miller
2002-12-05 21:21               ` Pavel Machek
2002-12-05 21:22                 ` David S. Miller
2002-12-05 21:32                   ` Pavel Machek

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