On May 27, 2011, at 12:46 PM, [email protected] wrote:

> On 2011-05-27 02:36 , Macs R We wrote:
>> and then, if there were some system utility I could use to obtain a 
>> real-time log of process creation,
> 
> man execsnoop
> 
> there are a couple other things i'd look at -- does a simple logout proceed 
> normally? can you ssh in to watch the process list as it attempts to shutdown

Wow, this is PRECISELY what I was hoping to find.  Thank you!   I should be 
able to ssh in, that was my plan.

Yes, simple logout works fine, but if the "bad" user has EVER logged in while 
the machine was up, the shutdown will fail no matter who is the last one out of 
the pool.

On May 27, 2011, at 12:21 PM, Karl Kuehn wrote:

>>>> 5/27/11 12:07:58 AM     com.apple.launchd.peruser.501[107]      
>>>> (com.apple.pbs) Throttling respawn: Will start in 7 seconds

>       No, this message is very specifically telling you that launched has 
> been repeatedly launching com.apple.pbs because it keeps crashing. 


You're right.  I overlooked the com.apple.pbs in the message.

Through a process of binary ~/Library triage, I have finally identified the 
offending file as Preferences/loginwindow.plist.  Property List Editor doesn't 
indicate that it is malformed in any way.  It's beginning to look like one of 
the login items is indeed the culprit, though I swear that I eliminated them 
early on.  But I may have left a couple of the "can't possibly fail 
Apple-standard" ones (like iTunesHelper) in there (though I was pretty sure I 
emptied out everything at one juncture).

Anyway, you folks have given me enough tools to finish finding this.  Thanks.

-- 
  Macs R We -- Personal Macintosh Service and Support
    in the Wickenburg and far Northwest Valley Areas.
                            http://macsrwe.com

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