Date: Fri, 03 Aug 2012 13:13:21 -0400 From: "Dieter BSD" <dieterbsd@engineer.com> To: freebsd-hackers@freebsd.org Subject: Re: How to diagnose system freezes? Message-ID: <20120803171322.298400@gmx.com>
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Adrian writes: > the "cycle over a short period" may not be the driver writing the same > crap to the card. I've seen similar failure modes in windows where > during playback, if the system hangs for whatever reason, the card > plays the last sample over and over in a loop. Ok, that makes sense. So it could be any device driver. Seems like diagnosing a device driver that is stuck in an infinite loop (or equivalent) with all interrupts shut off would be rather difficult.
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