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Date: Fri, 30 Sep 2005 17:08:28 -0600 (MDT)
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To: jhb@freebsd.org
From: "M. Warner Losh" <imp@bsdimp.com>
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Cc: mi+mx@aldan.algebra.com, mike@sentex.net, re@freebsd.org,
	current@freebsd.org, sos@freebsd.org
Subject: Re: ata0 going crazy after upgrading to 6.0B5
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In message: <200509301415.30321.jhb@FreeBSD.org>
            John Baldwin <jhb@freebsd.org> writes:
: On Friday 30 September 2005 02:00 pm, Mikhail Teterin wrote:
: > Mike Tancsa:
: > > I have a few older Intel 845 MBs like that. The IDE controller is not
: > > really disabled and if it shares and IRQ with something live/being
: > > used, things go crazy with a storm. The easiest thing to do is enable
: > > the controller in the BIOS
: >
: > Enabling the IDE controller in the BIOS did not help at all. What did help
: > is removing ata/atadisk/atapicd from the kernel.
: >
: > John Baldwin:
: > > Do you have any other devices in the system on IRQ14 (such as amr0
: > > perhaps)?
: >
: > No... After removing ata from the kernel completely, things are nice and
: > quiet and IRQ14 is not listed by neither dmesg.boot nor by `systat -vm'.
: >
: > I'd just accept it as the fact of life, but the problem did not exist in
: > 5.4...
: 
: What if you turn off the pci power tunable?

B5 has tue power tunable off by default...

Warner