linux-kernel - Re: [PATCH] Fix get ERESTARTSYS with m32 in x86

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <536085B7.5070002@zytor.com>
Date:	Tue, 29 Apr 2014 22:10:15 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andrew Pinski <pinskia@...il.com>
CC:	Hui Zhu <teawater@...il.com>, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	eparis@...hat.com, Andi Kleen <ak@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"gdb@...rceware.org" <gdb@...rceware.org>
Subject: Re: [PATCH] Fix get ERESTARTSYS with m32 in x86_64 when debug by
 GDB

On 04/29/2014 10:08 PM, Andrew Pinski wrote:
> 
> restoring the values is hard since even the ptrace interface does not
> allow for that.
> 

So that begs the ultimate question, which is: given the fact that there
is *state missing* from the state vector (this is the core of the
problem), is there a way we can add that state so that gdb will be able
to save and restore it?

	-hpa


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/