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Date:      Thu, 16 Jul 2009 09:25:40 +0200 (CEST)
From:      Alexander Best <alexbestms@math.uni-muenster.de>
To:        Robert Watson <rwatson@FreeBSD.org>
Cc:        freebsd-current@FreeBSD.org
Subject:   Re: (CTRL-C to abort) flood when core dumps
Message-ID:  <permail-2009071607254080e26a0b00003666-a_best01@message-id.uni-muenster.de>
In-Reply-To: <alpine.BSF.2.00.0907160715310.54568@fledge.watson.org>

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i'm running on a real machine with a usb keyboard and usb mouse. i'm having no
problems with the keyboard or mouse whatsoever and during the core dump i
didn't press any key nor did i use the mouse.

cheers.
alex

Robert Watson schrieb am 2009-07-16:
> On Wed, 15 Jul 2009, Alexander Best wrote:

> >when debug.debugger_on_panic is 0, a panic occurs and the core
> >dumps the console gets flooded with the following notice:

> >(CTRL-C to abort)

> >could we please output the warning only once? or every 10 seconds
> >or so?

> Normally that message is printed only when a key other than ctrl-c
> is hit during the dump.  It's certainly possible to rate-limit the
> message, or just limit it to printing once, but the more interesting
> question is why the kernel thinks a key is (effectively) held down
> such that it needs to print repeatedly.  Could you tell us a bit
> more about your configuration -- ps/2 / usb / serial console?  Mouse
> of some sort?  Virtual machine or real machine? Any other problems
> with keyboards during normal operation?  Any chance a key is being
> held down?

> Robert N M Watson
> Computer Laboratory
> University of Cambridge



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