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Sender: Alexander Motin <mavbsd@gmail.com>
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Date: Fri, 05 Nov 2010 21:06:11 +0200
From: Alexander Motin <mav@FreeBSD.org>
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To: Alexander Best <arundel@freebsd.org>, freebsd-scsi@freebsd.org
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Subject: Re: panic with high kern.cam.boot_delay value
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Hi.

Alexander Best wrote:
> i just stumbled upon a panic in connection with a very high kern.cam.boot_delay
> value (=100000). this is on HEAD (r214809; amd64). unfortunately i couldn't
> enter the debugger, because the panic occured before my usb keyboard attached.
> 
> the panic however occured in sched_priority(). can anybody reproduce this? just
> before the panic i saw some xpt_* message in connection with a 60 second delay.

I have feeling that it is related not to CAM, but to new event timers
infrastructure and SCHED_ULE. I have one report about panic in
sched_priority() on virtual machine. Unluckily, I can't reproduce any of
cases.

-- 
Alexander Motin