Screen 'hangs' after 19.1 update

[Jeff Simmons]

Install Fedora 19.1 (XFCE spin 64b) on a Samsung netbook, Atom N550. 
Everything looks good. Run 'yum update', take a break while it runs through 
786 operations. Reboot.

LIttle F appears in the center of the screen and fills in. Screen goes to text 
mode and announces:

brcmsmac bcma0:0: brcms_ops_bss_info_changed: qos enabled: false (implement)
brcmsmac bcma0:0: brcms_ops_config: change-powersave-mode: false (implement)

(timestamps delided)

and hangs. The only input that does anything is CTL-ALT-DEL, which reboots 
system and repeats above. Happens for updated kernel boot, old kernel boot, 
and rescue boot.

So, reboot and wait ten minutes. Suddenly, the screen saver unlocker appears. 
I enter my password, and up pops Fedora as if nothing had happened.

Quick check of dmesg shows the above announcement near the very end (last 12 
lines of dmesg):

[   29.827065] Ebtables v2.0 registered
[   30.059665] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[   33.669448] brcmsmac bcma0:0: brcms_ops_bss_info_changed: qos enabled: 
false (implement)
[   33.669640] brcmsmac bcma0:0: brcms_ops_config: change power-save mode: 
false (implement)
[   33.670461] IPv6: ADDRCONF(NETDEV_UP): wlp5s0: link is not ready
[   33.744830] sky2 0000:09:00.0 p3p1: enabling interface
[   33.745964] IPv6: ADDRCONF(NETDEV_UP): p3p1: link is not ready
[   33.769149] rtl8192cu: MAC auto ON okay!
[   33.812090] rtl8192cu: Tx queue select: 0x05
[   34.191539] IPv6: ADDRCONF(NETDEV_UP): wlp0s29f7u7: link is not ready
[   35.306178] sky2 0000:09:00.0 p3p1: Link is up at 100 Mbps, full duplex, 
flow control rx
[   35.306178] IPv6: ADDRCONF(NETDEV_CHANGE): p3p1: link becomes ready

Anybody got a clue what's going on?

-- 
Jeff Simmons                                           jsimmons at goblin.punk.net
Simmons Consulting - Network Engineering, Administration, Security
"You guys, I don't hear any noise.  Are you sure you're doing it right?"
        --  My Life With The Thrill Kill Kult