linux-kernel - Re: Current utrace breaks UML

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Message-Id: <20070523064611.3BD151F8510@magilla.localdomain>
Date:	Tue, 22 May 2007 23:46:11 -0700 (PDT)
From:	Roland McGrath <roland@...hat.com>
To:	Jeff Dike <jdike@...toit.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Current utrace breaks UML

> This chunk from linux-2.6-utrace.patch breaks PTRACE_SYSEMU, which UML
> rather relies on.

PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP are implemented in a different
way (see kernel/ptrace.c), which does not require that assembly code.  
(It also works for free on other arch's if you want to #define the
constants there.)

Do you have a test case for PTRACE_SYSEMU that does not work right?

Thanks,
Roland
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