Comment 3 for bug 1098225

[ 27.714716] ------------[ cut here ]------------
[ 27.714844] Kernel BUG at f9138eca [verbose debug info unavailable]
[ 27.714992] invalid opcode: 0000 [#1] SMP
[ 27.715098] Modules linked in: snd_hrtimer pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat_ipv4 nfnetlink_log nfnetlink xt_CHECKSUM iptable_mangle bridge stp llc dm_crypt snd_hda_codec_realtek snd_hda_intel xt_hl ip6t_rt snd_hda_codec nf_conntrack_ipv6 snd_hwdep joydev nf_defrag_ipv6 ipt_REJECT xt_LOG snd_pcm xt_limit acer_wmi xt_tcpudp sparse_keymap xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_state ip6table_filter ip6_tables snd_page_alloc nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat snd_seq_midi nf_conntrack_ftp snd_seq_midi_event nf_conntrack iptable_filter snd_rawmidi ip_tables x_tables uvcvideo videobuf2_vmalloc videobuf2_memops snd_seq videobuf2_core videodev usb_storage microcode snd_seq_device snd_timer lib80211_crypt_tkip wl(POF) snd psmouse lib80211 serio_raw lpc_ich atl1c cfg80211 soundcore mac_hid rfcomm bnep bluetooth parport_pc ppdev nfsd auth_rpcgss nfs_acl nfs binfmt_misc lockd sunrpc coretemp fscache lp parport i915 i2c_algo_bit drm_kms_helper drm wmi video
[ 27.716022] Pid: 2116, comm: wpa_supplicant Tainted: PF O 3.8.0-0-generic #1~masternext201301101227 Acer AO533 /AO533
[ 27.716022] EIP: 0060:[<f9138eca>] EFLAGS: 00210246 CPU: 0
[ 27.716022] EIP is at wl_cfg80211_scan+0x2da/0x340 [wl]
[ 27.716022] EAX: 00000000 EBX: f3151600 ECX: f92eca40 EDX: f093fe00
[ 27.716022] ESI: f093fe00 EDI: f30c2120 EBP: f1633c24 ESP: f1633c00
[ 27.716022] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 27.716022] CR0: 80050033 CR2: 080e8380 CR3: 3326d000 CR4: 000007f0
[ 27.716022] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 27.716022] DR6: ffff0ff0 DR7: 00000400
[ 27.716022] Process wpa_supplicant (pid: 2116, ti=f1632000 task=f31059b0 task.ti=f1632000)
[ 27.716022] Stack:
[ 27.716022] 000116bf f093fa00 f8c2f758 00000121 f093fe00 00000200 f3151600 f093fe00
[ 27.716022] f30c2120 f1633c58 f8c2fbfd ffffffff 00000033 00000003 f3151600 f30c2120
[ 27.716022] f30c2000 f1633c84 f093fe00 f8c63200 f8c63660 f8c22740 f1633cb4 c1551b2d
[ 27.716022] Call Trace:
[ 27.716022] [<f8c2f758>] ? nl80211_trigger_scan+0xc8/0x610 [cfg80211]
[ 27.716022] [<f8c2fbfd>] nl80211_trigger_scan+0x56d/0x610 [cfg80211]
[ 27.716022] [<f8c22740>] ? __cfg80211_rdev_from_attrs+0x160/0x160 [cfg80211]
[ 27.716022] [<c1551b2d>] genl_rcv_msg+0x22d/0x290
[ 27.716022] [<c1551900>] ? genl_rcv+0x30/0x30
[ 27.716022] [<c1551526>] netlink_rcv_skb+0x86/0xa0
[ 27.716022] [<c15518ec>] genl_rcv+0x1c/0x30
[ 27.716022] [<c1550ec7>] netlink_unicast+0x167/0x1e0
[ 27.716022] [<c1551169>] netlink_sendmsg+0x229/0x3a0
[ 27.716022] [<c151a11c>] sock_sendmsg+0x9c/0xd0
[ 27.784114] [<c12e9e7a>] ? radix_tree_lookup+0xa/0x10
[ 27.784114] [<c151a3e9>] __sys_sendmsg+0x299/0x2b0
[ 27.784114] [<c1019325>] ? fpu_finit+0x55/0x70
[ 27.784114] [<c1043dc7>] ? kmap_atomic_prot+0xe7/0x100
[ 27.784114] [<c1132685>] ? handle_mm_fault+0x1f5/0x2c0
[ 27.812673] [<c151b5eb>] sys_sendmsg+0x3b/0x60
[ 27.812673] [<c151bc83>] sys_socketcall+0x273/0x2d0
[ 27.812673] [<c12f1d21>] ? copy_to_user+0x41/0x60
[ 27.812673] [<c105157a>] ? sys_gettimeofday+0x2a/0x70
[ 27.812673] [<c161688d>] sysenter_do_call+0x12/0x28
[ 27.812673] Code: ff c6 03 00 8d 7b 01 66 be 43 00 e9 96 fd ff ff 90 66 c7 07 00 00 83 ee 02 83 c7 02 e9 91 fd ff ff be ea ff ff ff e9 8f fe ff ff <0f> 0b c7 44 24 04 c5 82 2a f9 c7 04 24 62 ba 2a f9 e8 9c cf 4c
[ 27.812673] EIP: [<f9138eca>] wl_cfg80211_scan+0x2da/0x340 [wl] SS:ESP 0068:f1633c00
[ 27.929661] ---[ end trace a27935e5c63e98e5 ]---