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Date:      Sat, 07 Feb 1998 20:18:57 -0800 (PST)
From:      Simon Shapiro <shimon@simon-shapiro.org>
To:        "Bruce M. Walter" <walter@fortean.com>
Cc:        John Fieber <jfieber@indiana.edu>, Mike Smith <mike@smith.net.au>, hackers@FreeBSD.ORG, Julian Elischer <julian@whistle.com>
Subject:   Re: Powering off the system/UPS
Message-ID:  <XFMail.980207201857.shimon@simon-shapiro.org>
In-Reply-To: <Pine.BSF.3.95q.980207104848.6006A-100000@callisto.fortean.com>

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On 07-Feb-98 Bruce M. Walter wrote:
>> If you dig into this mechanism, maybe you keep a scenario i see
>> sometimes
>> but have never managed to document properly:
>> 
>> AFTER the dpt is called from at_shutdown, the system tries to sync
>> disks. 
>> this synchronization obviously fails.  I don't think I saw this during
>> normal shutdown, but if you shutdown from the debugger, it can happen.
> 
> Could this be data written to the dump device as a result of the
> savectx/dumpsys calls from the RB_DUMP flag? 

Possible.  I think the anomaly is always associated with either a debugger
session, or a panic, or both.

----------


Sincerely Yours, 

Simon Shapiro
Shimon@Simon-Shapiro.ORG                      Voice:   503.799.2313

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