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Date:      Mon, 20 Sep 2004 13:00:34 -0700
From:      Nate Lawson <nate@root.org>
To:        Anish Mistry <mistry.7@osu.edu>
Cc:        freebsd-acpi@freebsd.org
Subject:   Re: RELENG_5 panic: mtx_lock() with ACPI
Message-ID:  <414F36E2.6050100@root.org>
In-Reply-To: <200409201556.39518.mistry.7@osu.edu>
References:  <200409201501.48755.mistry.7@osu.edu> <200409201511.02523.mistry.7@osu.edu> <414F30E9.4060300@root.org> <200409201556.39518.mistry.7@osu.edu>

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Anish Mistry wrote:

> On Monday 20 September 2004 03:35 pm, you wrote:
> 
>>Anish Mistry wrote:
>>
>>>On Monday 20 September 2004 03:01 pm, Anish Mistry wrote:
>>>
>>>>I'm getting the following panic on boot only with ACPI enabled.
>>>>On a verbose boot right after: start_init: trying /sbin/init
>>>>panic: mtx_lock() of spin mutex(null) @ /usr/src/sys/tty/tty.c:2809
>>>>Can't seem to get a dump even if dumpdev is set at the loader prompt.
>>>>
>>>>Verbose boot without ACPI enabled and ASL attached.
>>>
>>>Attachments got stripped.
>>>http://am-productions.biz/debug/BIGGUY-dmesg.txt.gz
>>>http://am-productions.biz/debug/bigguy.asl.gz
>>
>>Can you send a backtrace ("tr" from ddb)?
> 
> It doesn't break to the ddb prompt.

Can you enable options DDB?  If ddb is enabled, all panics should break 
to the debugger.

-- 
Nate



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