Updated BIOS, problem recurred.  Complete output of dmesg attached, snippet below.

dgriswold@9ZS43H1-D830:~$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
A17
06/19/2013


[  609.312229] iwl3945 0000:0c:00.0: Error sending C_POWER_TBL: time out after 500ms.
[  609.312244] iwl3945 0000:0c:00.0: set power fail, ret = -110
[  610.884153] iwl3945 0000:0c:00.0: Queue 4 stuck for 2500 ms.
[  610.884188] iwl3945 0000:0c:00.0: On demand firmware reload
[  610.921280] ieee80211 phy0: Hardware restart was requested
[  610.969306] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[  610.969310] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5 
[  611.016027] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[  611.016030] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
[  611.062739] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[  611.062741] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
[  611.109464] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[  611.109467] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
[  611.156184] iwl3945 0000:0c:00.0: BSM uCode verification failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
[  611.156187] iwl3945 0000:0c:00.0: Unable to set up bootstrap uCode: -5
[  611.192317] iwl3945 0000:0c:00.0: Unable to initialize device after 5 attempts.
[  611.192320] ------------[ cut here ]------------
[  611.192350] WARNING: CPU: 0 PID: 32 at /home/kernel/COD/linux/net/mac80211/util.c:1800 ieee80211_reconfig+0x616/0x1610 [mac80211]()
[  611.192352] Hardware became unavailable during restart.
[  611.192353] Modules linked in: ctr ccm snd_hda_codec_hdmi snd_hda_codec_idt snd_hda_codec_generic arc4 dell_rbtn gpio_ich iwl3945 snd_hda_intel iwlegacy dell_laptop dell_wmi sparse_keymap dcdbas mac80211 snd_hda_codec snd_hda_core snd_hwdep pcmcia snd_pcm dell_smm_hwmon coretemp snd_seq_midi snd_seq_midi_event snd_rawmidi kvm snd_seq yenta_socket cfg80211 joydev pcmcia_rsrc input_leds serio_raw pcmcia_core lpc_ich snd_seq_device snd_timer snd mac_hid soundcore shpchp 8250_fintek parport_pc ppdev sunrpc lp parport autofs4 drbg ansi_cprng xts gf128mul dm_crypt nouveau psmouse ahci mxm_wmi i2c_algo_bit libahci ttm firewire_ohci tg3 pata_acpi firewire_core ptp crc_itu_t pps_core drm_kms_helper drm wmi video
[  611.192413] CPU: 0 PID: 32 Comm: kworker/0:1 Not tainted 4.2.0-040200rc4-generic #201507271733
[  611.192415] Hardware name: Dell Inc. Latitude D830                   /0HN338, BIOS A17 06/19/2013
[  611.192425] Workqueue: events ieee80211_restart_work [mac80211]
[  611.192428]  ffffffffc05ee9d0 ffff8800bba47ca8 ffffffff8179fe21 0000000000000000
[  611.192431]  ffff8800bba47cf8 ffff8800bba47ce8 ffffffff81075aca ffff8800bba47d18
[  611.192434]  ffff8800b9f50ec0 00000000fffffffb ffff8800b9f506a0 ffff8800bfa1a700
[  611.192437] Call Trace:
[  611.192443]  [<ffffffff8179fe21>] dump_stack+0x45/0x57
[  611.192447]  [<ffffffff81075aca>] warn_slowpath_common+0x8a/0xc0
[  611.192450]  [<ffffffff81075b46>] warn_slowpath_fmt+0x46/0x50
[  611.192464]  [<ffffffffc05ab1c6>] ieee80211_reconfig+0x616/0x1610 [mac80211]
[  611.192467]  [<ffffffff810dcf1f>] ? try_to_del_timer_sync+0x4f/0x70
[  611.192477]  [<ffffffffc05781cf>] ieee80211_restart_work+0x6f/0xb0 [mac80211]
[  611.192481]  [<ffffffff8108dade>] process_one_work+0x14e/0x3d0
[  611.192483]  [<ffffffff8108e18a>] worker_thread+0x11a/0x470
[  611.192486]  [<ffffffff8108e070>] ? rescuer_thread+0x310/0x310
[  611.192488]  [<ffffffff81093629>] kthread+0xc9/0xe0
[  611.192491]  [<ffffffff81093560>] ? kthread_create_on_node+0x180/0x180
[  611.192494]  [<ffffffff817a765f>] ret_from_fork+0x3f/0x70
[  611.192496]  [<ffffffff81093560>] ? kthread_create_on_node+0x180/0x180
[  611.192498] ---[ end trace 50eb4d84cc16566d ]---