linux-kernel - Re: [PATCH 5/6] x86/ptrace: down with test_thread_flag(TIF

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Date:	Fri, 3 Jun 2016 13:41:18 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Dmitry Safonov <dsafonov@...tuozzo.com>
Cc:	linux-kernel@...r.kernel.org, mingo@...hat.com,
	luto@...capital.net, tglx@...utronix.de, hpa@...or.com,
	x86@...nel.org, 0x7f454c46@...il.com, oleg@...hat.com,
	xemul@...tuozzo.com, khorenko@...tuozzo.com,
	Andy Lutomirski <luto@...nel.org>
Subject: Re: [PATCH 5/6] x86/ptrace: down with test_thread_flag(TIF_IA32)

On Fri, Jun 03, 2016 at 01:27:33PM +0300, Dmitry Safonov wrote:
> > 
> > Looks reasonable! Still if cs has been changed to non-compat
> > selector and we now return 64bit registers set, won't it
> > cause problems for old tools? I suspect it should not but
> > still.
> > 
> 
> Thanks! Hmm, strace works fine - I'll check gdb to be sure.
> What else could be bothered by this?

None I know of at the moment.