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Date: Thu, 4 Sep 2014 08:56:33 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Tomoaki AOKI <junchoon@dec.sakura.ne.jp>
Subject: Re: Anyone else seeing lockup on boot with r271042?
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On Thu, 4 Sep 2014, Tomoaki AOKI wrote:

> Strange.
> My ThinkPad T420 with stable/10 r271091 boots fine, devd enabled. No
> external mouse (internal TrackPoint), internal Japanese keyboard with
> jp.kbd, vt on graphics mode, using nvidia descrete GPU with nvidia
> driver (not nv nor nouveau).

When a USB mouse is connected, devd runs moused.  I suspect there is a 
new race condition there.

> Note that I'm building world with -DNO_CLEAN, but buildkernel without
> it. (Building whole world only when something in toolchain is updated
> or library version bumped, to determine gptzfsboot change before
> installworld in regular updating.)

I usually use NO_CLEAN, but tried a full build just in case.  It did not 
change things.