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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Willy Tarreau <w@1wt.eu>
Cc: Andi Kleen <ak@suse.de>,
	pageexec@freemail.hu, davej@redhat.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH][RFC] exception processing in early boot
Date: Wed, 30 Aug 2006 22:31:18 +0100	[thread overview]
Message-ID: <1156973479.6271.214.camel@localhost.localdomain> (raw)
In-Reply-To: <20060830200354.GA496@1wt.eu>

Ar Mer, 2006-08-30 am 22:03 +0200, ysgrifennodd Willy Tarreau:
> So, to conclude, with or without the bug, "hlt;jmp $" will halt the
> CPU as we expect it to. Therefore, I'd like you to restore it in
> the patch.

Having had a dig I would concur that we should add the "hlt" back. The
cases I can find are 386/486 "hangs if hlt executed" bugs, mostly
unresolved/chipset problems and a "hlt during IDE DMA hangs the box" bug
we work around on the Cyrix CS5510.

That said for a PIV at least "hlt" really makes little difference to the
power burn


  parent reply	other threads:[~2006-08-30 21:09 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-08-30  6:39 [PATCH][RFC] exception processing in early boot Willy Tarreau
2006-08-30  9:51 ` Andi Kleen
2006-08-30 12:18   ` Willy Tarreau
2006-08-30 12:59     ` Andi Kleen
2006-08-30 13:16       ` Willy Tarreau
2006-08-30 14:00         ` Sean
2006-08-30 13:46           ` Willy Tarreau
2006-08-30 14:00           ` Sean
     [not found]       ` <44F5D81A.9650.5BE48F99@pageexec.freemail.hu>
2006-08-30 16:30         ` Andi Kleen
2006-08-30 16:59           ` linux-os (Dick Johnson)
2006-08-30 17:02             ` Andi Kleen
2006-08-30 17:15               ` linux-os (Dick Johnson)
     [not found]           ` <44F5E818.20898.5C230A79@pageexec.freemail.hu>
2006-08-30 17:52             ` Andi Kleen
     [not found]               ` <44F5F348.1251.5C4EBCCB@pageexec.freemail.hu>
2006-08-30 18:26                 ` Andi Kleen
2006-08-30 19:01                   ` Willy Tarreau
2006-08-30 19:36                     ` Andi Kleen
2006-08-30 20:03                       ` Willy Tarreau
2006-08-30 20:06                         ` Andi Kleen
2006-08-30 20:40                           ` Willy Tarreau
2006-08-30 21:31                         ` Alan Cox [this message]
  -- strict thread matches above, loose matches on Subject: below --
2006-08-31  2:05 Chuck Ebbert

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