From: Stuart Young <cef-lkml@optusnet.com.au>
To: linux-kernel@vger.kernel.org
Subject: Re: ACPI related hangup during boot, 2.6.6 worked ok, 2.6.7-rc2 freezes
Date: Fri, 4 Jun 2004 14:28:49 +1000
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Cc: Pozsar Balazs <pozsy@uhulinux.hu>, Len Brown <len.brown@intel.com>
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On Fri, 4 Jun 2004 05:46, Pozsar Balazs wrote:

> On an Intel D865GRH motherboard kernel 2.6.6 works fine, but 2.6.7-rc2
> (vanilla, -mm1 and -mm2 too) freezes during boot if acpi is enabled.
> (using acpi=off, it boots and works)
>
> I could not gather any useable call trace or other debug information.

I think I've hit this bug as well or possibly something related to it, but 
back in 2.6.7-rc1, however I was not able to recreate the issue. I posted a 
message about this to lkml on the 28/05/04 with the subject of:
 [2.6.7-rc1][BUG][ACPI] os_wait_semaphore: Failed to aquire semaphore (loop)

Attached was my config and some debug output, which included a call trace and 
register dump.

Reason I think it's related to this one is that the problem was a continual 
loop on os_wait_semaphore. I was running with CONFIG_ACPI_DEBUG=y, otherwise 
I doubt I would have noticed why it froze.

Hope this helps.

-- 
 Stuart Young (aka Cef)
 cef-lkml@optusnet.com.au is for LKML and related email only
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