Tracking down ata0 reset hang

[Jesse Guardiani]

Kevin Oberman wrote:

>> Date: Thu, 11 Dec 2003 13:13:15 -0800 (PST)
>> From: Nate Lawson <nate at root.org>
>> Sender: owner-freebsd-current at freebsd.org
>> 
>> I have a laptop that suspends and resumes fine.  Soeren's patch to
>> properly reset the hardware after the ATAng import fixed the problem
>> where resuming would hang in ata0 reset with the hard drive light on.
>> 
>> Sometime in the last month or two, the ATA reset phase of resume has
>> begun hanging again with the drive light on and I can't break to the
>> debugger. The interesting data point is that if I suspend/resume in
>> single user
>> mode, it works fine, including the reset.  But in multi-user mode, it
>> hangs.  I'm trying to disable various services to see if any of them
>> triggers the hang.
>> 
>> Has anyone else seen this regression?
> 
> I see it, but it's not a regression for me. Ever since ATAng was merged
> into HEAD, I've had this problem and Soeren's patch did not seem to
> help.
> 
> I have not tried suspending in stand-alone mode, but I will give it a
> try a little later today.

Suspend/Resume without apmd and without X11 works for me. Limited usefulness
though.

-- 
Jesse Guardiani, Systems Administrator
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