From: Oleg Nesterov <oleg@redhat.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Alexey Dobriyan <adobriyan@gmail.com>,
Roland McGrath <roland@redhat.com>,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
containers@lists.linux-foundation.org
Subject: Re: [PATCH] x86: ptrace debugreg checks rewrite
Date: Thu, 7 May 2009 02:24:55 +0200 [thread overview]
Message-ID: <20090507002455.GD3756@redhat.com> (raw)
In-Reply-To: <20090506095629.GC15323@elte.hu>
On 05/06, Ingo Molnar wrote:
>
> * Alexey Dobriyan <adobriyan@gmail.com> wrote:
>
> > On Mon, May 04, 2009 at 04:16:01AM +0400, Alexey Dobriyan wrote:
> > > +static int ptrace_check_debugreg(int _32bit,
> > > + unsigned long dr0, unsigned long dr1,
> > > + unsigned long dr2, unsigned long dr3,
> > > + unsigned long dr6, unsigned long dr7)
> > > +{
> > > + /* Breakpoint type: 00: --x, 01: -w-, 10: undefined, 11: rw- */
> > > + unsigned int rw[4];
> > > + /* Breakpoint length: 00: 1 byte, 01: 2 bytes, 10: 8 bytes, 11: bytes */
> > 4 bytes, of course
>
> Roland, Oleg, do you have any pending/planned changes in this area?
No, I don't (and couldn't since I don't understand this code ;)
Oleg.
next prev parent reply other threads:[~2009-05-07 0:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-04 0:16 [PATCH] x86: ptrace debugreg checks rewrite Alexey Dobriyan
2009-05-04 0:24 ` Alexey Dobriyan
2009-05-06 9:56 ` Ingo Molnar
2009-05-06 20:38 ` Roland McGrath
2009-05-07 9:13 ` Ingo Molnar
2009-05-07 0:24 ` Oleg Nesterov [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-06-22 21:09 Alexey Dobriyan
2009-06-23 8:55 ` Ingo Molnar
2009-06-23 9:47 ` Alexey Dobriyan
2009-06-30 21:48 ` Ingo Molnar
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