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Date: Fri, 2 Aug 2013 22:05:43 +0200
From: Marius Strobl <marius@alchemy.franken.de>
To: David Boyd <David.Boyd49@twc.com>
Subject: Re: AAC regression in 9.2-BETA
Message-ID: <20130802200543.GA6755@alchemy.franken.de>
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On Fri, Aug 02, 2013 at 02:44:04PM -0400, David Boyd wrote:
> I have an Adaptec 2820SA (SATA) controller that hangs the system during
> booting on 9.2-BETA[12]. 
> The only message I see on the console refers to controller aac0 and
> indicates "TIMEOUT 138 SECONDS".
> This same controller/motherboard works flawlessly with 9.1-RELEASE-p5.
> I have moved this hardware to "testing" mode and can rebuild often.
> I am asking for direction and suggestions as to which commits might be at
> fault.
> I am sorry that I didn't detect this problem earlier in the release cycle.
> Hope we can resolve this before 9.2-RELEASE.

That could be due to MSIs being broken with your particular controller
or mainboard. Please try whether setting the tunable hw.aac.enable_msi
to 0 on the loader prompt before booting makes things work. If it does,
please provide a verbose dmesg and the output of `pciconf -lcv`.

Marius