K 10
svn:author
V 8
hselasky
K 8
svn:date
V 27
2016-05-10T18:18:29.574697Z
K 7
svn:log
V 441
Ensure waiting loops terminate during cold boot. This fixes boot with
MacBookPro and i915kms_load="YES" in /boot/loader.conf.

A lowlevel timeout in one of the display ports caused an infinite wait
because a ticks/jiffies comparison was constant. The clock subsystem
which makes ticks/jiffies increment is started after the initial
driver probing is done. Refer to sys/kernel.h and SI_SUB_DRIVERS vs
SI_SUB_CLOCKS .

Discussed with:	kmacy @

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