From: "H. Peter Anvin" <hpa@zytor.com>
To: Jan Beulich <jbeulich@novell.com>
Cc: Ingo Molnar <mingo@elte.hu>, Joerg Roedel <joro@8bytes.org>,
Andi Kleen <andi@firstfloor.org>,
tglx@linutronix.de,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] i386: improve double fault handling
Date: Mon, 28 Jul 2008 10:02:30 -0400 [thread overview]
Message-ID: <488DD176.50600@zytor.com> (raw)
In-Reply-To: <488DECD9.76E4.0078.0@novell.com>
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
next prev parent reply other threads:[~2008-07-28 14:03 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-18 12:30 [PATCH] i386: improve double fault handling Jan Beulich
2008-07-18 23:24 ` H. Peter Anvin
2008-07-21 8:54 ` Jan Beulich
2008-07-21 11:05 ` Ingo Molnar
2008-07-22 10:13 ` Jan Beulich
2008-07-28 13:42 ` Ingo Molnar
2008-07-28 13:45 ` H. Peter Anvin
2008-07-28 13:59 ` Jan Beulich
2008-07-28 14:02 ` H. Peter Anvin [this message]
2008-07-28 16:28 ` Ingo Molnar
2008-07-28 22:00 ` Chuck Ebbert
2008-07-31 10:46 ` Ingo Molnar
2008-07-23 21:43 ` Joerg Roedel
2008-07-24 7:08 ` Jan Beulich
2008-07-24 13:24 ` H. Peter Anvin
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