Re: [PATCH 2.6.9-rc3-mm2] EDD: use EXTENDED READ command, add CONFIG_EDD_SKIP_MBR
From: Matt Domsch (Matt_Domsch_at_dell.com)
Date: 10/07/04
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- In reply to: Jeff Garzik: "Re: [PATCH 2.6.9-rc3-mm2] EDD: use EXTENDED READ command, add CONFIG_EDD_SKIP_MBR"
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Date: Thu, 7 Oct 2004 00:19:39 -0500 To: Jeff Garzik <jgarzik@pobox.com>
On Thu, Oct 07, 2004 at 12:39:54AM -0400, Jeff Garzik wrote:
> Alas, this does not eliminate the 30-second delay on my box.
OK, thanks for trying. So it's not the READ SECTORS call itself
that's the problem.
> Just to re-emphasize, I feel a particularly relevant detail is that my
> VIA-based Athlon64 box has _all_ PATA ports disabled.
>
> I am fairly certainly that the delay did not exist when I enabled at
> least one PATA port, and I can verify this if you would like.
Yeah, that'd be good to know. The PATA controller doesn't show up in
your lspci results from 5 July, so I'm sure you had it turned off then too.
BIOS reports having 4 disks in your system. Does that match
what you would expect?
Your boot disk is on this Promise controller, yes?
00:0d.0 RAID bus controller: Promise Technology, Inc. PDC20378
(SATA150 TX) (rev 02)
The second disk is on a different controller though, with its own EDD
3.0-compliant BIOS.
00:0f.0 RAID bus controller: VIA Technologies,
Inc. VIA VT6420 SATA
RAID Controller (rev 80)
Subsystem: Micro-Star International Co., Ltd. MSI Neo K8T
FIS2R mainboard
Then BIOS says you've got two more disks.
Both disks 82 and 83 look remarkably small (20808 sectors each,
~10MB). And I would bet there's no media present, as there's no
mbr_signature field given... So BIOS says there's a disk there, but
there really isn't. Which could cause the kind of timeout you're
seeing. To what are these attached? It's the BIOS for this
controller that's probably what's lying.
Thanks,
Matt
-- Matt Domsch Sr. Software Engineer, Lead Engineer Dell Linux Solutions linux.dell.com & www.dell.com/linux Linux on Dell mailing lists @ http://lists.us.dell.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Previous message: Paul Gortmaker: "Re: [PATCH][Documentation] update 00-INDEX - a bunch of entries missing."
- In reply to: Jeff Garzik: "Re: [PATCH 2.6.9-rc3-mm2] EDD: use EXTENDED READ command, add CONFIG_EDD_SKIP_MBR"
- Next in thread: Jeff Garzik: "Re: [PATCH 2.6.9-rc3-mm2] EDD: use EXTENDED READ command, add CONFIG_EDD_SKIP_MBR"
- Reply: Jeff Garzik: "Re: [PATCH 2.6.9-rc3-mm2] EDD: use EXTENDED READ command, add CONFIG_EDD_SKIP_MBR"
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