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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: jdthood@mail.com (Thomas Hood)
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), linux-kernel@vger.kernel.org
Subject: Re: Linux should not set the "PnP OS" boot flag
Date: Sun, 7 Oct 2001 15:18:00 +0100 (BST)	[thread overview]
Message-ID: <E15qEkj-0005uw-00@the-village.bc.nu> (raw)
In-Reply-To: <1002462656.831.112.camel@thanatos> from "Thomas Hood" at Oct 07, 2001 09:50:48 AM

> Yes (if you mean: clears the "Booting" flag).  This is a different
> flag from the PnP-OS flag.  The PnP-OS flag is bit 0; the "Booting"
> flag is bit 1.  So this is a separate issue.

Its very much the same issue. Only a marked successful PnP boot counts
for anything

> But look at the code (following).  The code DOES NOT clear the "Booting"
> flag.  It ONLY sets the PnP-OS flag.  Not only that: when it does so
> it fails to change bit 7 in order to preserve odd parity, as the spec
> requires.

sbf_write computes parity

  parent reply	other threads:[~2001-10-07 14:12 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-07  2:54 Thomas Hood
2001-10-07 10:02 ` Alan Cox
2001-10-07 13:50   ` Thomas Hood
2001-10-07 14:07     ` Dave Jones
2001-10-07 14:18     ` Alan Cox [this message]
2001-10-07 17:10       ` Thomas Hood
2001-10-07 21:59         ` Alan Cox
2001-10-07 17:54       ` Thomas Hood
  -- strict thread matches above, loose matches on Subject: below --
2001-10-08 12:40 Thomas Hood
2001-10-08 13:25 ` Stelian Pop
2001-10-08 22:12   ` J.D. Hood
2001-10-06  3:35 Thomas Hood
2001-10-06 19:24 ` Eric W. Biederman
2001-10-06 21:11   ` Alan Cox
2001-10-07  1:08     ` Eric W. Biederman

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