[Nexus 7 (2013) General] skipmeister123:
It looks like a driver issue, browsing through the bug report. Relevant log information:

<3>[ 688.136169] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 688.573364] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 689.137634] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 689.583343] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 690.139251] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 690.593322] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 691.140808] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 691.603393] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 692.141571] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 692.613342] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 693.142608] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 693.623352] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 694.144500] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 694.634277] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 695.146575] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 695.643341] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 696.147033] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 696.653350] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 697.148559] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 697.663360] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 698.150085] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 698.673370] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 699.151733] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 699.683349] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 700.153472] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 700.693359] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 701.155578] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 701.703369] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 702.156494] wlan: [2772:F :HDD] wlan_hdd_cfg80211_scan:LOGP in Progress. Ignore!!!
<3>[ 702.714233] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 703.013763] wlan: [2772:E :HDD] wlan_hdd_change_station:LOGP in Progress. Ignore!!!
<3>[ 703.014007] wlan: [2772:E :HDD] wlan_hdd_change_station:LOGP in Progress. Ignore!!!
<3>[ 703.213470] wlan: [2772:E :HDD] wlan_hdd_cfg80211_disconnect:LOGP in Progress. Ignore!!!
<3>[ 703.363677] init: untracked pid 2772 exited
<3>[ 703.723358] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 704.733337] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 705.743316] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 706.753326] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 707.763366] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 708.773559] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 709.784271] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 710.794586] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 711.803894] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 712.814239] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 713.824249] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 714.833770] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 715.844268] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 716.854003] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 717.864196] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 718.874511] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 719.884552] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 720.894287] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 721.904235] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 722.914215] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 723.923797] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 724.934204] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 725.944030] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 726.955688] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 727.964569] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 728.974548] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 729.984252] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!
<3>[ 730.994262] wlan: [493:F :HDD] hdd_driver_exit:SSR in Progress; block rmmod for 1 second!!!

Here's something interesting.... the wlan driver is coring out:

<4>[ 137.804473] ------------[ cut here ]------------
<4>[ 137.804718] WARNING: at drivers/staging/prima/CORE/HDD/src/wlan_hdd_early_suspend.c:1238 run_timer_softirq+0x1fc/0x354()
<4>[ 137.805175] [<c0014b94>] (unwind_backtrace+0x0/0x11c) from [<c0078f00>] (warn_slowpath_common+0x48/0x60)
<4>[ 137.805603] [<c0078f00>] (warn_slowpath_common+0x48/0x60) from [<c0078fd0>] (warn_slowpath_null+0x18/0x1c)
<4>[ 137.805999] [<c0078fd0>] (warn_slowpath_null+0x18/0x1c) from [<c00858c8>] (run_timer_softirq+0x1fc/0x354)
<4>[ 137.806427] [<c00858c8>] (run_timer_softirq+0x1fc/0x354) from [<c007f17c>] (__do_softirq+0x11c/0x27c)
<4>[ 137.806823] [<c007f17c>] (__do_softirq+0x11c/0x27c) from [<c007f718>] (irq_exit+0x48/0xa0)
<4>[ 137.807098] [<c007f718>] (irq_exit+0x48/0xa0) from [<c000f524>] (handle_IRQ+0x80/0xc0)
<4>[ 137.807495] [<c000f524>] (handle_IRQ+0x80/0xc0) from [<c00085f8>] (gic_handle_irq+0x64/0xb4)
<4>[ 137.807891] [<c00085f8>] (gic_handle_irq+0x64/0xb4) from [<c000e200>] (__irq_svc+0x40/0x70)
<4>[ 137.808105] Exception stack(0xc0e05f28 to 0xc0e05f70)
<4>[ 137.808471] 5f20: 00000000 00000000 00000001 00000003 00000003 00000003
<4>[ 137.808868] 5f40: c0e641d4 c0e641d4 00000000 511f06f0 00000000 00000000 00000000 c0e05f70
<4>[ 137.809112] 5f60: c00e9028 c005c1f0 60000013 ffffffff
<4>[ 137.809509] [<c000e200>] (__irq_svc+0x40/0x70) from [<c005c1f0>] (msm_cpuidle_enter+0x70/0x78)
<4>[ 137.809936] [<c005c1f0>] (msm_cpuidle_enter+0x70/0x78) from [<c0534d7c>] (cpuidle_enter+0x14/0x18)
<4>[ 137.810180] [<c0534d7c>] (cpuidle_enter+0x14/0x18) from [<c0535094>] (cpuidle_idle_call+0x178/0x398)
<4>[ 137.810607] [<c0535094>] (cpuidle_idle_call+0x178/0x398) from [<c000fa5c>] (cpu_idle+0x88/0xf0)
<4>[ 137.811035] [<c000fa5c>] (cpu_idle+0x88/0xf0) from [<c08c2950>] (rest_init+0x88/0xa0)
<4>[ 137.811462] [<c08c2950>] (rest_init+0x88/0xa0) from [<c0d008d4>] (start_kernel+0x424/0x48c)
<4>[ 137.811676] ---[ end trace da227214a82491b9 ]---