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Date:      Thu, 15 Jan 2009 17:49:11 +0000 (GMT)
From:      Robert Watson <rwatson@FreeBSD.org>
To:        Pete French <petefrench@ticketswitch.com>
Cc:        freebsd-stable@freebsd.org, drosih@rpi.edu, jhb@FreeBSD.org, rblayzor.bulk@inoc.net
Subject:   Re: Big problems with 7.1 locking up :-(
Message-ID:  <alpine.BSF.2.00.0901151747461.45995@fledge.watson.org>
In-Reply-To: <E1LNVsF-0000WG-0T@dilbert.ticketswitch.com>
References:  <E1LNVsF-0000WG-0T@dilbert.ticketswitch.com>

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On Thu, 15 Jan 2009, Pete French wrote:

>> desirable.  You might want to give the NMI a test run just to make sure it 
>> behaves as you think it should, though -- be aware that if DDB/KDB aren't 
>> compiled into the kernel, then an NMI will panic the box.
>
> Unfortunately it does this...
>
> http://toybox.twisted.org.uk/~pete/71_nmi1.png
>
> That is locked up too - hitting return does nothing. I was hoping it was 
> just garbled output but had actually gone to the debugger. Apparently not.
>
> Thats with a config file containing KDB, DDB and BREAK_TO_DEBUGGER, which 
> does work as I have tested it with CTRL_ALT_ESC.

Er, that's rather upsetting.  John, do you have any ideas about this?

Robert N M Watson
Computer Laboratory
University of Cambridge



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