abrt version: 2.0.1
architecture:   i686
cmdline:        ro root=UUID=bef0f220-b076-4cb8-a386-2ed103a15269 rd_NO_LUKS rd_NO_LVM rd_NO_MD rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYTABLE=be-latin1 rhgb quiet
comment:        No idea, I was just reading this when it happened: http://www.augeas.net/docs/index.html in Firefox 7.0 but Firefox did not crash. 
component:      kernel
kernel:         2.6.40.6-0.fc15.i686
kernel_tainted: 512
os_release:     Fedora release 15 (Lovelock)
package:        kernel
reason:         WARNING: at include/net/mac80211.h:3081 rate_control_send_low+0x86/0x102 [mac80211]()
time:           Wed Nov  9 08:39:37 2011

backtrace:
:WARNING: at include/net/mac80211.h:3081 rate_control_send_low+0x86/0x102 [mac80211]()
:Hardware name: Latitude D620                   
:Modules linked in: fuse 8021q garp stp llc cpufreq_ondemand acpi_cpufreq mperf ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ip6_tables arc4 iwl3945 iwl_legacy mac80211 cfg80211 tg3 ppdev parport_pc parport snd_hda_codec_idt i2c_i801 snd_hda_intel iTCO_wdt iTCO_vendor_support snd_hda_codec btusb snd_hwdep bluetooth snd_seq snd_seq_device snd_pcm snd_timer snd soundcore snd_page_alloc dell_laptop dell_wmi microcode dcdbas sparse_keymap rfkill joydev ipv6 yenta_socket wmi i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
:Pid: 45, comm: kworker/u:3 Tainted: G        W   2.6.40.6-0.fc15.i686 #1
:Call Trace:
: [<c07e2872>] ? printk+0x2d/0x2f
: [<c043c4b5>] warn_slowpath_common+0x7c/0x91
: [<f7bd307a>] ? rate_control_send_low+0x86/0x102 [mac80211]
: [<f7bd307a>] ? rate_control_send_low+0x86/0x102 [mac80211]
: [<c043c4ec>] warn_slowpath_null+0x22/0x24
: [<f7bd307a>] rate_control_send_low+0x86/0x102 [mac80211]
: [<f817e3d1>] iwl3945_rs_get_rate+0xf0/0x824 [iwl3945]
: [<c043c4ec>] ? warn_slowpath_null+0x22/0x24
: [<f7bd307a>] ? rate_control_send_low+0x86/0x102 [mac80211]
: [<f817e3d1>] ? iwl3945_rs_get_rate+0xf0/0x824 [iwl3945]
: [<c07e9e6b>] ? _raw_spin_unlock_irqrestore+0x13/0x15
: [<c0435873>] ? try_to_wake_up+0x15f/0x169
: [<f7bd33b1>] rate_control_get_rate+0x98/0x162 [mac80211]
: [<c0466268>] ? arch_local_irq_save+0x12/0x17
: [<f7bdab26>] invoke_tx_handlers+0x714/0xcb9 [mac80211]
: [<c0466268>] ? arch_local_irq_save+0x12/0x17
: [<f7bd9842>] ? ieee80211_tx_prepare+0x301/0x33c [mac80211]
: [<f7bdb120>] ieee80211_tx+0x55/0x7e [mac80211]
: [<f7bdb295>] ieee80211_xmit+0x14c/0x154 [mac80211]
: [<f7bddf36>] ? ieee80211_build_probe_req+0xe1/0xeb [mac80211]
: [<f7bdbb9e>] ieee80211_tx_skb+0x49/0x53 [mac80211]
: [<f7bddf76>] ieee80211_send_probe_req+0x36/0x3c [mac80211]
: [<f7bcd7eb>] ieee80211_mgd_probe_ap_send+0x84/0xc7 [mac80211]
: [<f7bcf413>] ieee80211_sta_work+0xd1/0x129 [mac80211]
: [<c0466268>] ? arch_local_irq_save+0x12/0x17
: [<f7bd1bf9>] ieee80211_iface_work+0x274/0x290 [mac80211]
: [<c0450725>] process_one_work+0x122/0x22f
: [<f7bd1985>] ? ieee80211_teardown_sdata+0xb8/0xb8 [mac80211]
: [<c04511b4>] worker_thread+0xb9/0x133
: [<c04510fb>] ? manage_workers+0x154/0x154
: [<c0453e60>] kthread+0x67/0x6c
: [<c0453df9>] ? kthread_worker_fn+0x11d/0x11d
: [<c07f013e>] kernel_thread_helper+0x6/0x10

event_log:
:2011-11-09-08:57:38> Submitting oops report to http://submit.kerneloops.org/submitoops.php
:2011-11-09-09:00:48  Kernel oops has not been sent due to Couldn't connect to server
:2011-11-09-09:00:48* (exited with 1)