Have no idea how to reproduce this, I just turned on my laptop, it connected to wifi network but couldn't send or recieve any package. At least even ping to access point didn't work. This could be fixed after reloading the module.

Nov 10 11:43:40 alex kernel: [   92.026262] WARNING: at drivers/net/wireless/iwlwifi/iwl-trans-pcie.c:1105 iwl_trans_pcie_tx+0xb8b/0\
xbb0 [iwlwifi]()                                                                                                                     
Nov 10 11:43:40 alex kernel: [   92.026265] Hardware name: 4170CTO                                                                   
Nov 10 11:43:40 alex kernel: [   92.026266] Modules linked in: lockd 8021q garp stp llc fcoe libfcoe libfc scsi_transport_fc scsi_tg\
t rfcomm bnep ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_c\
onntrack snd_hda_codec_hdmi snd_hda_codec_conexant iTCO_wdt arc4 iwlwifi thinkpad_acpi snd_hda_intel snd_hda_codec snd_hwdep snd_seq\
 snd_seq_device e1000e snd_pcm snd_timer snd btusb bluetooth mac80211 cfg80211 uvcvideo videodev media v4l2_compat_ioctl32 iTCO_vend\
or_support soundcore snd_page_alloc rfkill i2c_i801 microcode joydev sunrpc uinput sdhci_pci sdhci mmc_core wmi i915 drm_kms_helper \
drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]                                                                      
Nov 10 11:43:40 alex kernel: [   92.026326] Pid: 74, comm: kworker/u:4 Not tainted 3.2.0-0.rc1.git0.2.fc17.x86_64 #1                 
Nov 10 11:43:40 alex kernel: [   92.026328] Call Trace:                                                                              
Nov 10 11:43:40 alex kernel: [   92.026330]  <IRQ>  [<ffffffff8107ceaf>] warn_slowpath_common+0x7f/0xc0                              
Nov 10 11:43:40 alex kernel: [   92.026340]  [<ffffffff8107cf0a>] warn_slowpath_null+0x1a/0x20                                       
Nov 10 11:43:40 alex kernel: [   92.026350]  [<ffffffffa03fd29b>] iwl_trans_pcie_tx+0xb8b/0xbb0 [iwlwifi]                            
Nov 10 11:43:40 alex kernel: [   92.026355]  [<ffffffff81312ffe>] ? random32+0x2e/0x40                                               
Nov 10 11:43:40 alex kernel: [   92.026363]  [<ffffffffa03db582>] ? iwlagn_tx_skb+0x162/0xbb0 [iwlwifi]                              
Nov 10 11:43:40 alex kernel: [   92.026368]  [<ffffffff81196c19>] ? kmem_cache_alloc+0x239/0x250                                     
Nov 10 11:43:40 alex kernel: [   92.026375]  [<ffffffffa03db582>] ? iwlagn_tx_skb+0x162/0xbb0 [iwlwifi]                              
Nov 10 11:43:40 alex kernel: [   92.026383]  [<ffffffffa03db92b>] iwlagn_tx_skb+0x50b/0xbb0 [iwlwifi]                                
Nov 10 11:43:40 alex kernel: [   92.026389]  [<ffffffff8167cb1f>] ? _raw_spin_unlock_irqrestore+0x3f/0x80                            
Nov 10 11:43:40 alex kernel: [   92.026396]  [<ffffffffa03d15c1>] iwlagn_mac_tx+0x121/0x1c0 [iwlwifi]                                
Nov 10 11:43:40 alex kernel: [   92.026400]  [<ffffffff810c00fd>] ? trace_hardirqs_on+0xd/0x10                                       
Nov 10 11:43:40 alex kernel: [   92.026413]  [<ffffffffa02295f6>] __ieee80211_tx+0x76/0x240 [mac80211]                               
Nov 10 11:43:40 alex kernel: [   92.026423]  [<ffffffffa022bbdc>] ieee80211_tx+0xfc/0x130 [mac80211]                                 
Nov 10 11:43:40 alex kernel: [   92.026433]  [<ffffffffa022bb17>] ? ieee80211_tx+0x37/0x130 [mac80211]                               
Nov 10 11:43:40 alex kernel: [   92.026443]  [<ffffffffa022ce75>] ieee80211_tx_pending+0xb5/0x300 [mac80211]                         
Nov 10 11:43:40 alex kernel: [   92.026453]  [<ffffffffa022cdc0>] ? ieee80211_clear_tx_pending+0x50/0x50 [mac80211]                  
Nov 10 11:43:40 alex kernel: [   92.026457]  [<ffffffff81084e16>] ? tasklet_action+0x56/0x230                                        
Nov 10 11:43:40 alex kernel: [   92.026460]  [<ffffffff81084e5d>] tasklet_action+0x9d/0x230                                          
Nov 10 11:43:40 alex kernel: [   92.026463]  [<ffffffff810859b8>] __do_softirq+0xc8/0x3a0                                            
Nov 10 11:43:40 alex kernel: [   92.026466]  [<ffffffff81687bfc>] call_softirq+0x1c/0x30
Nov 10 11:43:40 alex kernel: [   92.026468]  <EOI>  [<ffffffff8101b385>] do_softirq+0xa5/0xe0                                        
Nov 10 11:43:40 alex kernel: [   92.026481]  [<ffffffffa0211fe0>] ? ieee80211_agg_tx_operational+0xf0/0x190 [mac80211]               
Nov 10 11:43:40 alex kernel: [   92.026484]  [<ffffffff81084a7b>] local_bh_enable_ip+0xeb/0x100                                      
Nov 10 11:43:40 alex kernel: [   92.026488]  [<ffffffff8167ca84>] _raw_spin_unlock_bh+0x44/0x50                                      
Nov 10 11:43:40 alex kernel: [   92.026496]  [<ffffffffa0211fe0>] ieee80211_agg_tx_operational+0xf0/0x190 [mac80211]                 
Nov 10 11:43:40 alex kernel: [   92.026506]  [<ffffffffa0212e52>] ieee80211_process_addba_resp+0x192/0x1a0 [mac80211]                
Nov 10 11:43:40 alex kernel: [   92.026516]  [<ffffffffa021c67f>] ieee80211_iface_work+0x30f/0x360 [mac80211]                        
Nov 10 11:43:40 alex kernel: [   92.026520]  [<ffffffff8109e493>] process_one_work+0x1d3/0x6d0                                       
Nov 10 11:43:40 alex kernel: [   92.026523]  [<ffffffff8109e432>] ? process_one_work+0x172/0x6d0                                     
Nov 10 11:43:40 alex kernel: [   92.026532]  [<ffffffffa021c370>] ? ieee80211_teardown_sdata+0xf0/0xf0 [mac80211]                    
Nov 10 11:43:40 alex kernel: [   92.026540]  [<ffffffff8109ed6e>] worker_thread+0x15e/0x350                                          
Nov 10 11:43:40 alex kernel: [   92.026544]  [<ffffffff8109ec10>] ? rescuer_thread+0x240/0x240                                       
Nov 10 11:43:40 alex kernel: [   92.026546]  [<ffffffff810a43a0>] kthread+0xb0/0xc0                                                  
Nov 10 11:43:40 alex kernel: [   92.026551]  [<ffffffff81687b04>] kernel_thread_helper+0x4/0x10                                      
Nov 10 11:43:40 alex kernel: [   92.026554]  [<ffffffff8167d434>] ? retint_restore_args+0x13/0x13                                    
Nov 10 11:43:40 alex kernel: [   92.026557]  [<ffffffff810a42f0>] ? __init_kthread_worker+0x70/0x70                                  
Nov 10 11:43:40 alex kernel: [   92.026561]  [<ffffffff81687b00>] ? gs_change+0x13/0x13                                              
Nov 10 11:43:40 alex kernel: [   92.026563] ---[ end trace 1867918c40a4338b ]---