linux-kernel - Re: [PATCH x86/mm 11/11] x86 ptrace merge removals

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Message-ID: <20071130000341.GA11177@c2.user-mode-linux.org>
Date:	Thu, 29 Nov 2007 19:03:41 -0500
From:	Jeff Dike <jdike@...toit.com>
To:	Roland McGrath <roland@...hat.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH x86/mm 11/11] x86 ptrace merge removals

On Thu, Nov 29, 2007 at 02:38:03PM -0800, Roland McGrath wrote:
> > Can you make sure that UML still runs when you're done with ptrace?
> 
> I'd be glad to, especially if you give me some advice on testing (.config
> for um-i386 and um-x86_64, what do try that constitutes "UML still runs").

Use defconfig and boot it.  If you break ptrace, I think it's
overwhelmingly likely that UML will stop booting.  So if UML boots,
I'd say you're good to go, with one caveat.  That is, UML should
report at boot that PTRACE_SYSEMU works.  I put in a fallback from
PTRACE_SYSEMU to PTRACE_SYSCALL when Fedora broke PTRACE_SYSEMU.

> Right now (before these), UML
> doesn't build for x86_64 or i386 from this tree to begin with.

For current -mm, you'll need
http://marc.info/?l=linux-kernel&m=119635496908681&q=raw to build.

				Jeff

-- 
Work email - jdike at linux dot intel dot com
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