Reboot instead of debugger/dump from X11? (Re: an accidental way to pull the plug)

From: Robert Watson <rwatson_at_FreeBSD.org>
Date: Sat, 25 Dec 2004 21:40:17 +0000 (GMT)
On Sat, 25 Dec 2004, Chuck Robey wrote:

> I got a little too fast just now, and did something that I shouldn't
> have done, but what's interesting is, FreeBSD decided to pull the plug
> and instantly reboot, which is usually something to be regarded as
> pathological, so I am letting you folks know.  I haven't analyzed
> exactly what happened to cause it, actually. 

With the recent 802.11 panic I posted about a bit earlier, I saw something
rather odd: when the panic took place on the normal text console, the
system dropped to the debugger.  However, when it took place with X11
running, I got an "instant reboot" -- no dump, etc.  So something odd is
happening during even normal failure modes when X11 is running for me.  I
wonder if anyone else is seeing this?

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert_at_fledge.watson.org      Principal Research Scientist, McAfee Research


> 
> Anyhow, I have been using FreeBSD as a fine platform for a Free database I
> am constructing for a buddy of mine who has a video rental store.  The
> database, which was active at the time (the app is nearly complete) is
> made with Python, gtk, pygtk (obviously) and the Sleepycat database.  I
> called those folks up and got the opinion that, as long as I didn't try to
> distribute the software, the way I'm handling it (for free) it generally
> falls under their free license, so I'm ok on that.
> 
> Anyhow, I was talking screen dump pictures of the 6 data entry screens, in
> X11, using xv to grab the windows.  I got a bit confused with mouse
> clicks, and actually asked it to do a grab while another grab was in delay
> wait (it has a timer delay, which I set to 5 seconds).  Result: reboot,
> instant.
> 
> I think that's it, although I will try to answer any questions.  If you
> folks are all too tied up with your own projects, it won't bother me, I'm
> only trying to be conscientious about things.
> 
> ----------------------------------------------------------------------------
> Chuck Robey         | Interests include C & Java programming, FreeBSD,
> chuckr_at_chuckr.org   | electronics, communications, and SF/Fantasy.
> 
> New Year's Resolution:  I will not sphroxify gullible people into looking up
> fictitious words in the dictionary (on the wall at my old fraternity,
> Signa Phi Nothing).
> ----------------------------------------------------------------------------
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Received on Sat Dec 25 2004 - 20:43:31 UTC

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