Additional info:
reporter:       libreport-2.2.3
BUG: soft lockup - CPU#1 stuck for 22s! [nacl_helper_boo:2893]
Modules linked in: fuse ipt_MASQUERADE xt_CHECKSUM tun ccm ip6t_rpfilter ip6t_REJECT xt_conntrack 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 bnep arc4 snd_hda_codec_realtek iTCO_wdt iTCO_vendor_support snd_hda_codec_generic snd_hda_intel snd_hda_controller ath5k snd_hda_codec coretemp uvcvideo snd_hwdep ath snd_seq videobuf2_vmalloc samsung_laptop snd_seq_device microcode videobuf2_memops videobuf2_core mac80211 videodev joydev media serio_raw i2c_i801 btusb bluetooth cfg80211 lpc_ich snd_pcm mfd_core rfkill snd_timer snd soundcore tpm_tis tpm_infineon tpm acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd sunrpc binfmt_misc ata_generic i915 pata_acpi i2c_algo_bit drm_kms_helper sky2 drm i2c_core video
CPU: 1 PID: 2893 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: d8a93480 ti: d8a94000 task.ti: d8a94000
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: d8a95b9c ESP: d8a95b9c
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
CR0: 8005003b CR2: b677fb90 CR3: 00ded000 CR4: 000007e0
Stack:
 d8a95bbc c06bc773 d8a95bc4 00000578 00000000 d8a93480 00000220 c065a290
 d8a95bc4 c04a8b04 d8a95c20 c04d8ccc 00000000 c0468fd0 000000ff f75e63c0
 00000005 00000000 00000578 d8a93480 00171c7d 00000005 0000001b 00000001
Call Trace:
 [<c06bc773>] ___ratelimit+0x83/0xf0
 [<c065a290>] ? securityfs_remove+0x90/0x90
 [<c04a8b04>] __printk_ratelimit+0x14/0x20
 [<c04d8ccc>] audit_log_start+0x1ec/0x420
 [<c0468fd0>] ? __send_signal+0x50/0x420
 [<c04693db>] ? send_signal+0x3b/0x70
 [<c065a290>] ? securityfs_remove+0x90/0x90
 [<c0673eb3>] common_lsm_audit+0x43/0x670
 [<c0479bfe>] ? check_cpu_itimer+0x9e/0x130
 [<c0479e5b>] ? thread_group_cputimer+0xab/0xf0
 [<c065a3b0>] ? avc_audit_pre_callback+0x120/0x120
 [<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
 [<c043f02b>] ? lapic_next_event+0x1b/0x20
 [<c04bde65>] ? clockevents_program_event+0x95/0x130
 [<c04bf8c9>] ? tick_program_event+0x29/0x30
 [<c047c414>] ? hrtimer_interrupt+0x144/0x2c0
 [<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
 [<c0a0d13e>] ? __schedule+0x23e/0x6f0
 [<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
 [<c0a10000>] ? _raw_write_lock_bh+0x10/0x30
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