From: Jeff Dike <jdike@addtoit.com>
To: Roland McGrath <roland@redhat.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: Current utrace breaks UML
Date: Fri, 25 May 2007 22:10:13 -0400 [thread overview]
Message-ID: <20070526021013.GA11490@c2.user-mode-linux.org> (raw)
In-Reply-To: <20070526013513.E894D1F8511@magilla.localdomain>
On Fri, May 25, 2007 at 06:35:13PM -0700, Roland McGrath wrote:
> Oops! I overlooked the need to preserve the orig_eax value, though its
> necessity is obvious. This makes me wonder about those previous
> reports that UML was working OK.
The one from me was on x86_64, where PTRACE_SYSEMU isn't an issue yet.
> I've fixed this in the latest utrace patch set. I also wired up
> sysemu on x86_64. This means 32-bit processes calling ptrace now
> support it for full compatibility with native i386, which the vanilla
> kernel does not. It also means it works for 64-bit ptrace calls,
> whether operating on a 64-bit or a 32-bit target process.
Beautiful!
Jeff
--
Work email - jdike at linux dot intel dot com
next prev parent reply other threads:[~2007-05-26 2:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-22 21:38 Current utrace breaks UML Jeff Dike
2007-05-23 6:46 ` Roland McGrath
2007-05-23 12:19 ` Jeff Dike
2007-05-26 1:35 ` Roland McGrath
2007-05-26 2:10 ` Jeff Dike [this message]
2007-05-23 12:20 ` Jeff Dike
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