From: Andi Kleen <ak@suse.de>
To: "David S. Miller" <davem@davemloft.net>
Cc: ak@suse.de, sfr@canb.auug.org.au, hch@lst.de, akpm@osdl.org,
linux-kernel@vger.kernel.rg, linux-arch@vger.kernel.org
Subject: Re: RFC: is_compat_task
Date: Tue, 28 Jun 2005 11:27:04 +0200 [thread overview]
Message-ID: <20050628092703.GK8035@wotan.suse.de> (raw)
In-Reply-To: <20050628.022346.34749336.davem@davemloft.net>
On Tue, Jun 28, 2005 at 02:23:46AM -0700, David S. Miller wrote:
> From: Andi Kleen <ak@suse.de>
> Date: Tue, 28 Jun 2005 11:17:04 +0200
>
> > No, it's not because it makes it impossible to have 64bit processes
> > that run with 32bit ABI (not implemented right now but we don't
> > want to break that).
>
> I've been hearing this for years, and still there's nothing
> that really wants to do this.
People regularly ask for 32bit in long mode on x86-64.
So far nobody did really implement it, but I would assume
it will happen sooner or later.
>
> The one case that emulates 32-bit programs from a 64-bit
> process (ia64) makes 64-bit system calls.
>
> We can't sit on our hands forever on this issue because of
> some pseudo-feature that's been in perpetual beta since the
> first time it was ever mentioned :-)
On what issue exactly? So far all the code was relatively easily
fixable.
-Andi
next prev parent reply other threads:[~2005-06-28 9:27 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-28 7:27 input compat stuff Christoph Hellwig
2005-06-28 8:14 ` RFC: is_compat_task (Was: Re: input compat stuff) Stephen Rothwell
2005-06-28 8:30 ` RFC: is_compat_task David S. Miller
2005-06-28 9:17 ` RFC: is_compat_task (Was: Re: input compat stuff) Andi Kleen
2005-06-28 9:23 ` RFC: is_compat_task David S. Miller
2005-06-28 9:27 ` Andi Kleen [this message]
2005-06-28 9:29 ` David S. Miller
2005-06-28 9:33 ` Andi Kleen
2005-06-28 11:18 ` RFC: is_compat_task (Was: Re: input compat stuff) Matthew Wilcox
2005-06-28 12:05 ` Andi Kleen
2005-06-28 20:47 ` RFC: is_compat_task David S. Miller
2005-06-29 6:41 ` Stephen Rothwell
2005-06-29 11:01 ` Arnd Bergmann
2005-06-29 12:12 ` Andi Kleen
2005-06-30 7:57 ` Stephen Rothwell
2005-06-30 8:42 ` Andi Kleen
2005-06-30 14:38 ` Stephen Rothwell
2005-06-30 15:28 ` Stephen Rothwell
2005-06-30 15:49 ` Andi Kleen
2005-06-30 23:29 ` Paul Mackerras
2005-07-01 2:34 ` David S. Miller
2005-07-01 13:48 ` Andi Kleen
2005-07-04 3:36 ` Paul Mackerras
2005-07-04 23:02 ` David S. Miller
2005-07-01 4:56 ` [PATCH, for review 1/3] compat_sys_{read,write} Stephen Rothwell
2005-07-01 4:58 ` [PATCH, for review 2/3] hook up compat_sys_{read,write} syscalls Stephen Rothwell
2005-07-01 5:01 ` [PATCH, for review 3/3] fix evdev Stephen Rothwell
2005-07-01 7:58 ` [PATCH, for review 1/3] compat_sys_{read,write} David Howells
2005-07-01 8:24 ` Stephen Rothwell
2005-07-21 7:05 ` Stephen Rothwell
2005-07-21 8:05 ` David S. Miller
2005-07-21 8:28 ` Stephen Rothwell
2005-06-29 10:36 ` RFC: is_compat_task Andi Kleen
2005-06-28 16:09 ` RFC: is_compat_task (Was: Re: input compat stuff) Stephen Rothwell
2005-06-28 16:14 ` Andi Kleen
2005-06-28 16:34 ` Stephen Rothwell
2005-06-28 16:44 ` Andi Kleen
2005-06-30 10:16 ` Ralf Baechle
2005-06-28 9:16 ` input compat stuff Andi Kleen
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