linux-kernel - Re: acpi=off vs. blacklist

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Date:	Tue, 31 Jul 2007 12:36:47 +0200
From:	Gabriel C <nix.or.die@...glemail.com>
To:	"Ph. Marek" <philipp.marek@...v.gv.at>
CC:	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: acpi=off vs. blacklist

Ph. Marek wrote:
[ added linux-acpi to CC ]
> Hello everybody!
> 
> I have two machines which freeze during boot; this seems to be ACPI-related, 
> because with acpi=off they start.
> 
> The first one is the HP DC 7700; some summary can be seen on
>   http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1081719
> It hangs after a line
>   ACPI assume root bridge[\sp_.pci0] bus is 0
> 
> The second one is a notebook; a Roda Rocky III+ RK886EX, which just shows a 
> blank screen.
> 
> As we drive many machines from the same kernel image via PXE, I tried to 
> insert them into drivers/acpi/blacklist.c; but that doesn't help, either - 
> the notebook hangs as before, no matter whether I set is_critical_error or 
> not. 
>  [ I suppose I wrote the entries wrong; is there some HOWTO? I used
>    acpidump/acpixtract/acpitbl, copied other blacklist entries, and took
>    "OEM Table ID", "OEMID", "OEM REVISION". Help? ]
> 
> 
> Using the "ACPI debug" kernel option showed no more messages.
> 
> 
> Help, please? What can/should I do now?
> 
> 
> Regards,
> 
> Phil
> -
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