Additional info:
libreport version: 2.0.18
abrt_version:   2.0.18
cmdline:        BOOT_IMAGE=/vmlinuz-3.6.11-1.fc17.x86_64 root=/dev/mapper/vg-lv_root ro rd.md=0 rd.dm=0 KEYTABLE=us SYSFONT=True rd.lvm.lv=vg/lv_root rd.luks=0 rd.lvm.lv=vg/lv_swap LANG=en_US.UTF-8 rhgb quiet
kernel:         3.6.11-1.fc17.x86_64

backtrace:
:WARNING: at kernel/irq/manage.c:1211 __free_irq+0xa3/0x220()
:Hardware name: Extensa 4630Z   
:Trying to free already-free IRQ 16
:Modules linked in: usb_storage fuse rfcomm bnep ip6t_REJECT nf_conntrack_ipv6 nf_conntrack_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 xt_state nf_conntrack ip6table_filter ip6_tables btusb bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev media snd_hda_codec_realtek arc4 snd_hda_intel ath9k snd_hda_codec ath9k_common ath9k_hw ath snd_hwdep snd_seq snd_seq_device snd_pcm acer_wmi sparse_keymap mac80211 snd_page_alloc iTCO_wdt iTCO_vendor_support jmb38x_ms lpc_ich memstick tg3 snd_timer cfg80211 rfkill mfd_core coretemp i2c_i801 snd soundcore microcode binfmt_misc uinput yenta_socket sdhci_pci sdhci mmc_core mxm_wmi wmi i915 video i2c_algo_bit drm_kms_helper drm i2c_core
:Pid: 23765, comm: kworker/0:3 Not tainted 3.6.11-1.fc17.x86_64 #1
:Call Trace:
: [<ffffffff8105c8ef>] warn_slowpath_common+0x7f/0xc0
: [<ffffffff8105c9e6>] warn_slowpath_fmt+0x46/0x50
: [<ffffffff810e8d63>] __free_irq+0xa3/0x220
: [<ffffffff810e8f34>] free_irq+0x54/0xc0
: [<ffffffffa0121300>] sdhci_remove_host+0x60/0x160 [sdhci]
: [<ffffffffa0116c92>] sdhci_pci_remove_slot+0x3e/0x8b [sdhci_pci]
: [<ffffffffa0116d2d>] sdhci_pci_remove+0x4e/0x78 [sdhci_pci]
: [<ffffffff813047cf>] pci_device_remove+0x3f/0x110
: [<ffffffff813c30ec>] __device_release_driver+0x7c/0xe0
: [<ffffffff813c342c>] device_release_driver+0x2c/0x40
: [<ffffffff813c2b8e>] bus_remove_device+0xee/0x160
: [<ffffffff813bffaa>] device_del+0x12a/0x1c0
: [<ffffffff813c0062>] device_unregister+0x22/0x60
: [<ffffffff812fdca4>] pci_stop_bus_device+0x94/0xa0
: [<ffffffff81316725>] acpiphp_disable_slot+0x195/0x200
: [<ffffffff813151b6>] ? get_slot_status+0x46/0xc0
: [<ffffffff813167bd>] acpiphp_check_bridge.isra.16+0x2d/0xf0
: [<ffffffff81316e7b>] _handle_hotplug_event_bridge+0x36b/0x4d0
: [<ffffffff81316b10>] ? _handle_hotplug_event_func+0x1d0/0x1d0
: [<ffffffff8107b47f>] ? queue_work+0x1f/0x30
: [<ffffffff8117ab39>] ? kfree+0x49/0x160
: [<ffffffff81339b5f>] ? acpi_os_release_object+0xe/0x12
: [<ffffffff81078d07>] process_one_work+0x147/0x4a0
: [<ffffffff81316b10>] ? _handle_hotplug_event_func+0x1d0/0x1d0
: [<ffffffff8107aa7e>] worker_thread+0x15e/0x480
: [<ffffffff8107a920>] ? manage_workers+0x2f0/0x2f0
: [<ffffffff8107fe43>] kthread+0x93/0xa0
: [<ffffffff816283c4>] kernel_thread_helper+0x4/0x10
: [<ffffffff8107fdb0>] ? kthread_freezable_should_stop+0x70/0x70
: [<ffffffff816283c0>] ? gs_change+0x13/0x13

Potential duplicate bug: 863557