From: Al Viro <viro@ZenIV.linux.org.uk>
To: David Miller <davem@davemloft.net>
Cc: hpa@zytor.com, torvalds@linux-foundation.org,
linux-kernel@vger.kernel.org, ralf@linux-mips.org
Subject: Re: [PATCH] broken TASK_SIZE for ia32_aout
Date: Mon, 7 May 2012 01:13:27 +0100 [thread overview]
Message-ID: <20120507001327.GC22082@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20120506.193814.2029338625165610372.davem@davemloft.net>
On Sun, May 06, 2012 at 07:38:14PM -0400, David Miller wrote:
> From: Al Viro <viro@ZenIV.linux.org.uk>
> Date: Mon, 7 May 2012 00:32:34 +0100
>
> > bit looks dubious. What happens when 32bit task makes a 64bit syscall?
> > Do we really want to drop upper 32 bits of all arguments in the copy we
> > are building?
>
> I basically never intended to support 32-bit tasks making 64-bit
> system calls except in extremely limited situations such as ptrace()
> so that a 32-bit gdb could debug 64-bit tasks.
>
> Do we really have to support crap like this?
Hey, I'm all for getting rid of that...
next prev parent reply other threads:[~2012-05-07 0:13 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-06 16:20 [PATCH] broken TASK_SIZE for ia32_aout Al Viro
2012-05-06 17:16 ` Linus Torvalds
2012-05-06 17:37 ` H. Peter Anvin
2012-05-06 17:54 ` Al Viro
2012-05-06 17:56 ` Al Viro
2012-05-06 17:58 ` H. Peter Anvin
2012-05-06 18:46 ` Al Viro
2012-05-06 18:48 ` H. Peter Anvin
2012-05-06 19:58 ` Al Viro
2012-05-06 20:32 ` David Miller
2012-05-06 20:51 ` H. Peter Anvin
2012-05-06 23:40 ` David Miller
2012-05-06 23:48 ` H. Peter Anvin
2012-05-07 2:56 ` David Miller
2012-05-07 3:05 ` H. Peter Anvin
2012-05-06 23:32 ` Al Viro
2012-05-06 23:38 ` David Miller
2012-05-07 0:13 ` Al Viro [this message]
2012-05-07 0:24 ` Al Viro
2012-05-06 17:23 ` [tip:x86/urgent] x86, compat: Correct broken TASK_SIZE for ia32 a. out binaries tip-bot for Al Viro
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