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From: Matt Domsch <>
To: Meelis Roos <>
Cc: Marcelo Tosatti <>,
	Anton Altaparmakov <>,
Subject: Re: 2.4.23-bk bogus edd changeset - Re: 2.4.23 compile error in edd
Date: Thu, 18 Dec 2003 08:02:16 -0600	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>; from on Thu, Dec 18, 2003 at 01:32:20PM +0200

> Same here - instant reboot when EDD is enabled. Do you need my config
> also? The mainboard is Intel D815EEA2 with latest BIOS
> (EA81520A.86A.0039.P21.0211061753).

Ok, 2 reports now.  With Anton off getting married, can you assist
with debugging this (I've tried, and can't reproduce it on any systems
available to me) ?

In include/asm-i386/edd.h, change:
#define DISK80_SIG_BUFFER 0x228


#define DISK80_SIG_BUFFER 0x2cc

and see if that helps.  What I'm thinking right now is that 0x228 is
being used by a boot loader somehow (what's your boot loader?) though I can't
yet prove it, and it isn't listed in
Documentation/i386/zero-page.txt.  But Anton showed that the int13
calls the EDD code makes (or even if you remove those) succeeds, but
by writing something into 0x228 the kernel uncompress fails.  I'm
hoping that by moving the buffer to 0x2cc (immediately before the e820
memory map reserved space) that it will succeed.


Matt Domsch
Sr. Software Engineer, Lead Engineer
Dell Linux Solutions
Linux on Dell mailing lists @

  reply	other threads:[~2003-12-18 14:02 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-04 14:20 2.4.23 compile error in edd Meelis Roos
2003-12-04 14:58 ` Meelis Roos
2003-12-04 22:31 ` 2.4.23-bk bogus edd changeset - " Anton Altaparmakov
2003-12-05 15:52   ` Marcelo Tosatti
2003-12-05 17:36     ` Matt Domsch
2003-12-05 18:53       ` Matt Domsch
2003-12-05 19:07         ` Matt Domsch
2003-12-08 16:34       ` Anton Altaparmakov
2003-12-09  4:23         ` Matt Domsch
2003-12-09 16:29           ` Anton Altaparmakov
2003-12-10 20:48             ` Matt Domsch
2003-12-15 19:52               ` Anton Altaparmakov
2003-12-18 11:32       ` Meelis Roos
2003-12-18 14:02         ` Matt Domsch [this message]
2003-12-19 11:05           ` Meelis Roos
2003-12-19 14:49             ` Matt Domsch

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