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From: "Jan Beulich" <>
To: "Bartlomiej Zolnierkiewicz" <>,
	"Kevin P. Fleming" <>,
	"Greg KH" <>,
	"Andrew Morton" <>,
	"Alan Cox" <>
Cc: <>
Subject: Re: drivers/pci/probe.c patch in causes 'cannot adjust BAR0 (not I/O)' on NVidia MCP51
Date: Mon, 26 Mar 2007 07:58:46 +0100	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

>>> Greg KH <> 25.03.07 18:11 >>>
>On Sun, Mar 25, 2007 at 08:23:23AM -0700, Kevin P. Fleming wrote:
>> I just upgraded from to on my Compaq V6000 laptop,
>> which has an NVidia core chipset. It has the MCP51 and uses it for PATA
>> and SATA.
>> Booting the kernel causes two messages (and a kernel lockup)
>> like this:
>> 0000:00:0d.0: cannot adjust BAR0 (not I/O)
>> 0000:00:0d.0: cannot adjust BAR1 (not I/O)
>> Booting without ACPI, without APIC, without LAPIC makes no usable
>> difference (although sometimes I will also receive a message about BAR2).
>> This patch:

>> is the cause... backing it out results in a working kernel on
>> my laptop.
>> I'll be happy to provide any assistance I can debugging this problem.
>Jan, any thoughts about this?
>Should this be backed out of the -stable releases?

I don't think so - the message (as Alan also said) tells the user that the
intended adjustment is *not* being done, kind of as a warning. I would
agree, though, that the flags adjustment (namely, adding
IORESOURCE_IO) is somewhat questionable; this isn't a change the
patch did, though, it was that way already before. But otoh with the
legacy flag set in progif, these BARs *should* be I/O ones...


  parent reply	other threads:[~2007-03-26  6:58 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-25 15:23 Kevin P. Fleming
2007-03-25 16:11 ` Greg KH
2007-03-25 17:22   ` Kevin P. Fleming
2007-03-25 20:08   ` Alan Cox
2007-03-25 19:21     ` Adrian Bunk
2007-03-26  2:25       ` Kevin P. Fleming
2007-03-26  3:08         ` Adrian Bunk
2007-03-26  6:58   ` Jan Beulich [this message]
2007-03-26 10:55     ` Alan Cox
2007-03-25 16:43 ` Gabriel C
2007-03-25 18:13   ` Torsten Kaiser
2007-03-25 19:09     ` Grzegorz Chwesewicz

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