Additional info:
reporter:       libreport-2.2.3
BUG: soft lockup - CPU#1 stuck for 22s! [nacl_helper_boo:5068]
Modules linked in: vfat fat uas usb_storage fuse ipt_MASQUERADE xt_CHECKSUM tun ccm ip6t_rpfilter ip6t_REJECT xt_conntrack bnep ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller arc4 uvcvideo videobuf2_vmalloc snd_hda_codec coretemp iTCO_wdt iTCO_vendor_support ath5k ath videobuf2_memops snd_hwdep microcode btusb snd_seq videobuf2_core samsung_laptop i2c_i801 bluetooth mac80211 snd_seq_device videodev snd_pcm joydev lpc_ich serio_raw tpm_tis cfg80211 snd_timer media mfd_core tpm_infineon rfkill snd soundcore tpm acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd sunrpc binfmt_misc ata_generic i915 i2c_algo_bit drm_kms_helper pata_acpi drm sky2 i2c_core video
CPU: 1 PID: 5068 Comm: nacl_helper_boo Not tainted 3.15.8-200.fc20.i686+PAE #1
Hardware name: SAMSUNG ELECTRONICS CO., LTD. NC10                       /NC10                       , BIOS 09CA.M004.20090619.RHU 06/19/2009
task: f4495a40 ti: f68ec000 task.ti: f68ec000
EIP: 0060:[<c0a0fe8f>] EFLAGS: 00200206 CPU: 1
EIP is at _raw_spin_unlock_irqrestore+0xf/0x20
EAX: 00200206 EBX: c0cafb58 ECX: 00000001 EDX: 00200206
ESI: 00200206 EDI: 00000000 EBP: f68edb68 ESP: f68edb68
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
CR0: 8005003b CR2: b7519720 CR3: 00ded000 CR4: 000007e0
Stack:
 f68edb88 c06bc773 c065a290 f68edb7c 00200206 c0bc5acf 00000220 c065a290
 f68edb90 c04a8b04 f68edba4 c04d802a c065a290 f68edba4 c0bc5acf f68edbc4
 c04d812d 00000000 f4495a40 00000220 c065a290 f4495a40 00000220 f68edc20
Call Trace:
 [<c06bc773>] ___ratelimit+0x83/0xf0
 [<c065a290>] ? securityfs_remove+0x90/0x90
 [<c065a290>] ? securityfs_remove+0x90/0x90
 [<c04a8b04>] __printk_ratelimit+0x14/0x20
 [<c04d802a>] audit_panic+0x3a/0x60
 [<c065a290>] ? securityfs_remove+0x90/0x90
 [<c04d812d>] audit_log_lost+0x3d/0xd0
 [<c065a290>] ? securityfs_remove+0x90/0x90
 [<c04d8cde>] audit_log_start+0x1fe/0x420
 [<c065a290>] ? securityfs_remove+0x90/0x90
 [<c0673eb3>] common_lsm_audit+0x43/0x670
 [<c065a3b0>] ? avc_audit_pre_callback+0x120/0x120
 [<c06be980>] ? timerqueue_add+0x50/0xb0
 [<c065a6ae>] slow_avc_audit+0x5e/0x90
 [<c065a97e>] avc_has_perm+0x12e/0x180
 [<c065e973>] selinux_task_wait+0x43/0x50
 [<c0658d84>] security_task_wait+0x14/0x20
 [<c045baf9>] wait_consider_task+0x89/0xb60
 [<c045fb95>] ? irq_exit+0x55/0xb0
 [<c043f978>] ? smp_apic_timer_interrupt+0x38/0x50
 [<c0a109b4>] ? apic_timer_interrupt+0x34/0x3c
 [<c045c6ab>] do_wait+0xdb/0x210
 [<c045d631>] SyS_wait4+0x71/0xf0
 [<c045b460>] ? task_stopped_code+0x50/0x50
 [<c04d6e24>] zap_pid_ns_processes+0xf4/0x160
 [<c045d319>] do_exit+0x8a9/0x8e0
 [<c0460000>] ? r_show+0xa0/0xb0
 [<c045d3c4>] do_group_exit+0x34/0xa0
 [<c046abe6>] get_signal_to_deliver+0x186/0x590
 [<c0a11030>] ? do_trap+0xc0/0xc0
 [<c0410395>] do_signal+0x45/0x8b0
 [<c0468bb0>] ? complete_signal+0xe0/0x1f0
 [<c04690dd>] ? __send_signal+0x15d/0x420
 [<c04693db>] ? send_signal+0x3b/0x70
 [<c0469b67>] ? force_sig_info+0xa7/0xd0
 [<c0469ba4>] ? force_sig+0x14/0x20
 [<c0a110a1>] ? do_general_protection+0x71/0x170
 [<c0a11030>] ? do_trap+0xc0/0xc0
 [<c0410c67>] do_notify_resume+0x67/0x90
 [<c0a1066d>] work_notifysig+0x30/0x37
Code: 90 8d 74 26 00 eb d9 31 c0 eb dc 90 e8 2b a9 a4 ff 90 90 90 90 90 90 90 90 90 90 90 55 89 e5 3e 8d 74 26 00 80 00 01 89 d0 50 9d <8d> 74 26 00 5d c3 8d 74 26 00 8d bc 27 00 00 00 00 55 89 e5 3e