linux-kernel - Re: [PATCH] i386: improve double fault handling

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: <488DD176.50600@zytor.com>
Date:	Mon, 28 Jul 2008 10:02:30 -0400
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Jan Beulich <jbeulich@...ell.com>
CC:	Ingo Molnar <mingo@...e.hu>, Joerg Roedel <joro@...tes.org>,
	Andi Kleen <andi@...stfloor.org>, tglx@...utronix.de,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i386: improve double fault handling

Jan Beulich wrote:
> 
>> Firstly, 64-bit does not use a task gate for double faults anymore. (but 
>> uses a separate IST stack for double faults)
> 
> Sure - because there are no task gates on 64-bit.
> 

What we're doing here is really using task gates to emulate IST anyway.

	-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/