From: Oleg Nesterov <oleg@redhat.com>
To: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Roland McGrath <roland@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>,
"Lu, Hongjiu" <hongjiu.lu@intel.com>,
"Lachner, Peter" <peter.lachner@intel.com>
Subject: Re: [patch] x86: ptrace and core-dump extensions for xstate
Date: Tue, 9 Feb 2010 18:28:07 +0100 [thread overview]
Message-ID: <20100209172807.GA19529@redhat.com> (raw)
In-Reply-To: <1265405954.2812.89.camel@sbs-t61.sc.intel.com>
Sorry for delay!
On 02/05, Suresh Siddha wrote:
>
> On Fri, 2010-02-05 at 13:15 -0800, Roland McGrath wrote:
>
> > (OTOH, my suggestion requires a whole extra 5 lines of code or so
> > in compat_sys_ptrace because the indirection in the ABI is sensitive to
> > userland word size.) But I don't feel strongly about the particulars of
> > the ptrace API addition, just that it be generic to cover any regset and
> > not be prone to implicit buffer-size miscommunications. I'll leave it to
> > whatever Oleg wants to implement.
>
> Ok. I will split the previous patch in to two patches and re-post it. I
> can help Oleg with reviewing and testing the generic implementation
> whenever it is ready.
OK, I'll try to do this "asap", this generic implementation looks easy.
Except, I am not sure I really understand the problem, need to read
the regset code and then re-read this thread ;)
Oleg.
next prev parent reply other threads:[~2010-02-09 17:29 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-02 2:00 [patch] x86: ptrace and core-dump extensions for xstate Suresh Siddha
2010-02-02 2:33 ` [tip:x86/ptrace] " tip-bot for Suresh Siddha
2010-02-03 23:08 ` [patch] " Roland McGrath
2010-02-03 23:45 ` Lu, Hongjiu
2010-02-04 2:02 ` Roland McGrath
2010-02-04 2:05 ` Lu, Hongjiu
2010-02-04 2:16 ` Roland McGrath
2010-02-04 2:22 ` Lu, Hongjiu
2010-02-04 4:54 ` Roland McGrath
2010-02-04 5:01 ` Lu, Hongjiu
2010-02-04 5:18 ` Roland McGrath
2010-02-04 5:32 ` Lu, Hongjiu
2010-02-04 20:28 ` Suresh Siddha
2010-02-04 20:55 ` Roland McGrath
2010-02-04 22:05 ` Suresh Siddha
2010-02-04 22:18 ` H. Peter Anvin
2010-02-05 19:47 ` Lu, Hongjiu
2010-02-05 21:15 ` Roland McGrath
2010-02-05 21:39 ` Suresh Siddha
2010-02-09 17:28 ` Oleg Nesterov [this message]
2010-02-05 21:02 ` Roland McGrath
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