Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Cc:     torvalds@linux-foundation.org, linux-kernel@vger.kernel.org
From:   Shuah Khan <shuahkh@osg.samsung.com>
To:     john.johansen@canonical.com, Shuah Khan <shuahkh@osg.samsung.com>
Subject: Linux 4.14 - BUG: unable to handle kernel paging request at
 ffffffff3bbbe160 IP: audit_signal_cb+0x75/0xf0
Message-ID: <5f0f4166-04b3-04de-16e7-884500ad03ca@osg.samsung.com>
Date:   Tue, 21 Nov 2017 09:58:09 -0700
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Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Hi John,

I am seeing the following on my laptop. Unfortunately this is my primary
system and my ability to bisect might be a bit limited. The system is
running 

4.14.0+ #4 SMP Tue Nov 14 19:25:58 MST 2017 x86_64 x86_64 x86_64 GNU/Linux

on Ubuntu 17.10 base.

Is this a known issue? Please see the dmesg excerpts below:


thanks,
-- Shuah

---------------------------------------------------------------------------------------------------------------------------------
BUG: unable to handle kernel paging request at ffffffff3bbbe160
[11056.698348] IP: audit_signal_cb+0x75/0xf0
[11056.698349] PGD 339e0c067 P4D 339e0c067 PUD 0 
[11056.698351] Oops: 0000 [#1] SMP
[11056.698353] Modules linked in: uas usb_storage thunderbolt rfcomm bnep binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm dcdbas snd_seq_midi snd_seq_midi_event snd_rawmidi brcmfmac intel_rapl x86_pkg_temp_thermal intel_powerclamp snd_seq coretemp brcmutil cfg80211 rtsx_pci_ms snd_seq_device memstick snd_timer kvm_intel kvm irqbypass snd joydev wmi_bmof uvcvideo serio_raw soundcore shpchp videobuf2_vmalloc cp210x usbserial videobuf2_memops videobuf2_v4l2 mei_me videobuf2_core mei btusb btrtl videodev hid_multitouch btbcm media input_leds intel_lpss_pci processor_thermal_device intel_soc_dts_iosf hci_uart btintel bluetooth acpi_als kfifo_buf mac_hid industrialio acpi_pad ecdh_generic intel_lpss_acpi intel_lpss int3403_thermal
[11056.698383]  int340x_thermal_zone int3400_thermal acpi_thermal_rel parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt i915 i2c_algo_bit crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel syscopyarea pcbc ahci hid_generic rtsx_pci_sdmmc sysfillrect aesni_intel usbhid sysimgblt i2c_hid fb_sys_fops aes_x86_64 crypto_simd glue_helper cryptd psmouse rtsx_pci libahci drm wmi hid pinctrl_sunrisepoint video pinctrl_intel
[11056.698414] CPU: 0 PID: 10483 Comm: evince Not tainted 4.14.0+ #4
[11056.698415] Hardware name: Dell Inc. XPS 13 9350/0VM5NC, BIOS 1.2.3 01/08/2016
[11056.698416] task: ffff9a1441a1bd00 task.stack: ffffbe1d4486c000
[11056.698417] RIP: 0010:audit_signal_cb+0x75/0xf0
[11056.698418] RSP: 0018:ffffbe1d4486fba0 EFLAGS: 00010292
[11056.698419] RAX: ffffbe1d4486fd18 RBX: ffff9a15f05269f0 RCX: 0000000000000000
[11056.698420] RDX: fffffffff042da90 RSI: 0000000000000006 RDI: ffff9a1461627800
[11056.698421] RBP: ffffbe1d4486fbb0 R08: 0000000000000044 R09: ffffbe1d4486fbe6
[11056.698422] R10: ffffbe1d4486fc50 R11: ffff9a14f06f9872 R12: ffffbe1d4486fcf8
[11056.698423] R13: ffffffffb939a690 R14: ffff9a1441a1bd00 R15: 0000000000000000
[11056.698424] FS:  00007ff520501ac0(0000) GS:ffff9a1600c00000(0000) knlGS:0000000000000000
[11056.698425] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[11056.698425] CR2: ffffffff3bbbe160 CR3: 00000002e17e2005 CR4: 00000000003606f0
[11056.698426] Call Trace:
[11056.698429]  common_lsm_audit+0x1c4/0x730
[11056.698432]  ? aa_compute_fperms+0x188/0x1b0
[11056.698433]  aa_audit_msg+0x22/0x30
[11056.698434]  ? aa_audit_msg+0x22/0x30
[11056.698436]  aa_check_perms+0xe8/0x100
[11056.698437]  profile_signal_perm.part.2+0x92/0xa0
[11056.698438]  aa_may_signal+0x1b0/0x200
[11056.698441]  apparmor_task_kill+0x50/0x100
[11056.698444]  security_task_kill+0x4b/0x70
[11056.698446]  check_kill_permission+0xe4/0x100
[11056.698447]  group_send_sig_info+0x1b/0x40
[11056.698448]  kill_pid_info+0x34/0x50
[11056.698450]  SYSC_kill+0xe0/0x1a0
[11056.698451]  ? ____fput+0xe/0x10
[11056.698453]  ? task_work_run+0x46/0xc0
[11056.698455]  SyS_kill+0xe/0x10
[11056.698457]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[11056.698459] RIP: 0033:0x7ff51ce0c457
[11056.698460] RSP: 002b:00007ffee217e008 EFLAGS: 00000246 ORIG_RAX: 000000000000003e
[11056.698461] RAX: ffffffffffffffda RBX: 0000560b4db35200 RCX: 00007ff51ce0c457
[11056.698462] RDX: 0000000000000021 RSI: 0000000000000000 RDI: 00000000000008ac
[11056.698462] RBP: 00007ff51d1ac3e0 R08: 0000560b4db1b880 R09: 0000000000000000
[11056.698463] R10: 00007ff520501ac0 R11: 0000000000000246 R12: 0000000000000000
[11056.698464] R13: 00007ff5103de9ba R14: 00000000000008ac R15: 00007ff5103de9c8
[11056.698465] Code: 18 48 89 df 41 b8 20 00 08 01 48 8b 42 10 48 8b 52 30 48 63 48 4c 48 8b 44 c8 48 31 c9 48 8b 70 38 e8 70 fd 00 00 5b 41 5c 5d c3 <48> 8b 14 d5 e0 0c a5 b9 48 c7 c6 34 ad cb b9 48 89 df e8 74 88 
[11056.698483] RIP: audit_signal_cb+0x75/0xf0 RSP: ffffbe1d4486fba0
[11056.698484] CR2: ffffffff3bbbe160
[11056.698486] ---[ end trace 082a937c357a2a04 ]---
[11081.860720] BUG: unable to handle kernel paging request at ffffffff3bbbe160
[11081.860727] IP: audit_signal_cb+0x75/0xf0
[11081.860728] PGD 339e0c067 P4D 339e0c067 PUD 0 
[11081.860731] Oops: 0000 [#2] SMP
[11081.860732] Modules linked in: uas usb_storage thunderbolt rfcomm bnep binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm dcdbas snd_seq_midi snd_seq_midi_event snd_rawmidi brcmfmac intel_rapl x86_pkg_temp_thermal intel_powerclamp snd_seq coretemp brcmutil cfg80211 rtsx_pci_ms snd_seq_device memstick snd_timer kvm_intel kvm irqbypass snd joydev wmi_bmof uvcvideo serio_raw soundcore shpchp videobuf2_vmalloc cp210x usbserial videobuf2_memops videobuf2_v4l2 mei_me videobuf2_core mei btusb btrtl videodev hid_multitouch btbcm media input_leds intel_lpss_pci processor_thermal_device intel_soc_dts_iosf hci_uart btintel bluetooth acpi_als kfifo_buf mac_hid industrialio acpi_pad ecdh_generic intel_lpss_acpi intel_lpss int3403_thermal
[11081.860775]  int340x_thermal_zone int3400_thermal acpi_thermal_rel parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt i915 i2c_algo_bit crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel syscopyarea pcbc ahci hid_generic rtsx_pci_sdmmc sysfillrect aesni_intel usbhid sysimgblt i2c_hid fb_sys_fops aes_x86_64 crypto_simd glue_helper cryptd psmouse rtsx_pci libahci drm wmi hid pinctrl_sunrisepoint video pinctrl_intel
[11081.860792] CPU: 3 PID: 10535 Comm: evince Tainted: G      D         4.14.0+ #4
[11081.860793] Hardware name: Dell Inc. XPS 13 9350/0VM5NC, BIOS 1.2.3 01/08/2016
[11081.860794] task: ffff9a14602cadc0 task.stack: ffffbe1d44694000
[11081.860795] RIP: 0010:audit_signal_cb+0x75/0xf0
[11081.860796] RSP: 0018:ffffbe1d44697ba0 EFLAGS: 00010292
[11081.860797] RAX: ffffbe1d44697d18 RBX: ffff9a15e59f1f78 RCX: 0000000000000000
[11081.860798] RDX: fffffffff042da90 RSI: 0000000000000006 RDI: ffff9a14d7eebf00
[11081.860799] RBP: ffffbe1d44697bb0 R08: 0000000000000044 R09: ffffbe1d44697be6
[11081.860800] R10: ffffbe1d44697c50 R11: ffff9a14f06f8872 R12: ffffbe1d44697cf8
[11081.860801] R13: ffffffffb939a690 R14: ffff9a14602cadc0 R15: 0000000000000000
[11081.860802] FS:  00007f15d6888ac0(0000) GS:ffff9a1600d80000(0000) knlGS:0000000000000000
[11081.860803] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[11081.860804] CR2: ffffffff3bbbe160 CR3: 000000038b50b005 CR4: 00000000003606e0
[11081.860804] Call Trace:
[11081.860807]  common_lsm_audit+0x1c4/0x730
[11081.860809]  aa_audit_msg+0x22/0x30
[11081.860810]  ? aa_audit_msg+0x22/0x30
[11081.860812]  aa_check_perms+0xe8/0x100
[11081.860813]  profile_signal_perm.part.2+0x92/0xa0
[11081.860814]  aa_may_signal+0x1b0/0x200
[11081.860817]  apparmor_task_kill+0x50/0x100
[11081.860820]  security_task_kill+0x4b/0x70
[11081.860821]  check_kill_permission+0xe4/0x100
[11081.860823]  group_send_sig_info+0x1b/0x40
[11081.860824]  kill_pid_info+0x34/0x50
[11081.860825]  SYSC_kill+0xe0/0x1a0
[11081.860827]  ? ____fput+0xe/0x10
[11081.860829]  ? task_work_run+0x46/0xc0
[11081.860830]  SyS_kill+0xe/0x10
[11081.860833]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[11081.860834] RIP: 0033:0x7f15d3193457
[11081.860835] RSP: 002b:00007fffb5772598 EFLAGS: 00000246 ORIG_RAX: 000000000000003e
[11081.860836] RAX: ffffffffffffffda RBX: 000056493cc04640 RCX: 00007f15d3193457
[11081.860837] RDX: 0000000000000021 RSI: 0000000000000000 RDI: 00000000000008ac
[11081.860838] RBP: 00007f15d35333e0 R08: 000056493c99ea00 R09: 0000000000000000
[11081.860839] R10: 00007f15d6888ac0 R11: 0000000000000246 R12: 0000000000000000
[11081.860839] R13: 00007f15c27559ba R14: 00000000000008ac R15: 00007f15c27559c8
[11081.860840] Code: 18 48 89 df 41 b8 20 00 08 01 48 8b 42 10 48 8b 52 30 48 63 48 4c 48 8b 44 c8 48 31 c9 48 8b 70 38 e8 70 fd 00 00 5b 41 5c 5d c3 <48> 8b 14 d5 e0 0c a5 b9 48 c7 c6 34 ad cb b9 48 89 df e8 74 88 
[11081.860859] RIP: audit_signal_cb+0x75/0xf0 RSP: ffffbe1d44697ba0
[11081.860859] CR2: ffffffff3bbbe160
[11081.860861] ---[ end trace 082a937c357a2a05 ]---
[11096.910997] BUG: unable to handle kernel paging request at ffffffff3bbbe160
[11096.911005] IP: audit_signal_cb+0x75/0xf0
[11096.911007] PGD 339e0c067 P4D 339e0c067 PUD 0 
[11096.911009] Oops: 0000 [#3] SMP
[11096.911011] Modules linked in: uas usb_storage thunderbolt rfcomm bnep binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm dcdbas snd_seq_midi snd_seq_midi_event snd_rawmidi brcmfmac intel_rapl x86_pkg_temp_thermal intel_powerclamp snd_seq coretemp brcmutil cfg80211 rtsx_pci_ms snd_seq_device memstick snd_timer kvm_intel kvm irqbypass snd joydev wmi_bmof uvcvideo serio_raw soundcore shpchp videobuf2_vmalloc cp210x usbserial videobuf2_memops videobuf2_v4l2 mei_me videobuf2_core mei btusb btrtl videodev hid_multitouch btbcm media input_leds intel_lpss_pci processor_thermal_device intel_soc_dts_iosf hci_uart btintel bluetooth acpi_als kfifo_buf mac_hid industrialio acpi_pad ecdh_generic intel_lpss_acpi intel_lpss int3403_thermal
[11096.911040]  int340x_thermal_zone int3400_thermal acpi_thermal_rel parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt i915 i2c_algo_bit crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel syscopyarea pcbc ahci hid_generic rtsx_pci_sdmmc sysfillrect aesni_intel usbhid sysimgblt i2c_hid fb_sys_fops aes_x86_64 crypto_simd glue_helper cryptd psmouse rtsx_pci libahci drm wmi hid pinctrl_sunrisepoint video pinctrl_intel
[11096.911070] CPU: 2 PID: 10562 Comm: evince Tainted: G      D         4.14.0+ #4
[11096.911071] Hardware name: Dell Inc. XPS 13 9350/0VM5NC, BIOS 1.2.3 01/08/2016
[11096.911072] task: ffff9a1509388f40 task.stack: ffffbe1d44afc000
[11096.911073] RIP: 0010:audit_signal_cb+0x75/0xf0
[11096.911074] RSP: 0018:ffffbe1d44affba0 EFLAGS: 00010292
[11096.911075] RAX: ffffbe1d44affd18 RBX: ffff9a15e50f9708 RCX: 0000000000000000
[11096.911076] RDX: fffffffff042da90 RSI: 0000000000000006 RDI: ffff9a1441835700
[11096.911077] RBP: ffffbe1d44affbb0 R08: 0000000000000044 R09: ffffbe1d44affbe6
[11096.911078] R10: ffffbe1d44affc50 R11: ffff9a14d7d80872 R12: ffffbe1d44affcf8
[11096.911078] R13: ffffffffb939a690 R14: ffff9a1509388f40 R15: 0000000000000000
[11096.911080] FS:  00007f62fc600ac0(0000) GS:ffff9a1600d00000(0000) knlGS:0000000000000000
[11096.911081] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[11096.911081] CR2: ffffffff3bbbe160 CR3: 00000002e0287003 CR4: 00000000003606e0
[11096.911082] Call Trace:
[11096.911086]  common_lsm_audit+0x1c4/0x730
[11096.911088]  ? aa_compute_fperms+0x188/0x1b0
[11096.911089]  aa_audit_msg+0x22/0x30
[11096.911091]  ? aa_audit_msg+0x22/0x30
[11096.911092]  aa_check_perms+0xe8/0x100
[11096.911093]  profile_signal_perm.part.2+0x92/0xa0
[11096.911095]  aa_may_signal+0x1b0/0x200
[11096.911097]  apparmor_task_kill+0x50/0x100
[11096.911099]  security_task_kill+0x4b/0x70
[11096.911101]  check_kill_permission+0xe4/0x100
[11096.911103]  group_send_sig_info+0x1b/0x40
[11096.911104]  kill_pid_info+0x34/0x50
[11096.911105]  SYSC_kill+0xe0/0x1a0
[11096.911107]  ? ____fput+0xe/0x10
[11096.911109]  ? task_work_run+0x46/0xc0
[11096.911111]  SyS_kill+0xe/0x10
[11096.911113]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[11096.911115] RIP: 0033:0x7f62f8f0b457
[11096.911116] RSP: 002b:00007ffe6c3a8308 EFLAGS: 00000246 ORIG_RAX: 000000000000003e
[11096.911117] RAX: ffffffffffffffda RBX: 00005568fcd0e200 RCX: 00007f62f8f0b457
[11096.911118] RDX: 0000000000000021 RSI: 0000000000000000 RDI: 00000000000008ac
[11096.911118] RBP: 00007f62f92ab3e0 R08: 00005568fca89a00 R09: 0000000000000000
[11096.911119] R10: 00007f62fc600ac0 R11: 0000000000000246 R12: 0000000000000000
[11096.911120] R13: 00007f62ec4ee9ba R14: 00000000000008ac R15: 00007f62ec4ee9c8
[11096.911121] Code: 18 48 89 df 41 b8 20 00 08 01 48 8b 42 10 48 8b 52 30 48 63 48 4c 48 8b 44 c8 48 31 c9 48 8b 70 38 e8 70 fd 00 00 5b 41 5c 5d c3 <48> 8b 14 d5 e0 0c a5 b9 48 c7 c6 34 ad cb b9 48 89 df e8 74 88 
[11096.911140] RIP: audit_signal_cb+0x75/0xf0 RSP: ffffbe1d44affba0
[11096.911140] CR2: ffffffff3bbbe160
[11096.911142] ---[ end trace 082a937c357a2a06 ]---
[11260.520442] BUG: unable to handle kernel paging request at ffffffff3bbbe160
[11260.520452] IP: audit_signal_cb+0x75/0xf0
[11260.520453] PGD 339e0c067 P4D 339e0c067 PUD 0 
[11260.520457] Oops: 0000 [#4] SMP
[11260.520459] Modules linked in: uas usb_storage thunderbolt rfcomm bnep binfmt_misc snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm dcdbas snd_seq_midi snd_seq_midi_event snd_rawmidi brcmfmac intel_rapl x86_pkg_temp_thermal intel_powerclamp snd_seq coretemp brcmutil cfg80211 rtsx_pci_ms snd_seq_device memstick snd_timer kvm_intel kvm irqbypass snd joydev wmi_bmof uvcvideo serio_raw soundcore shpchp videobuf2_vmalloc cp210x usbserial videobuf2_memops videobuf2_v4l2 mei_me videobuf2_core mei btusb btrtl videodev hid_multitouch btbcm media input_leds intel_lpss_pci processor_thermal_device intel_soc_dts_iosf hci_uart btintel bluetooth acpi_als kfifo_buf mac_hid industrialio acpi_pad ecdh_generic intel_lpss_acpi intel_lpss int3403_thermal
[11260.520500]  int340x_thermal_zone int3400_thermal acpi_thermal_rel parport_pc ppdev lp parport ip_tables x_tables autofs4 algif_skcipher af_alg dm_crypt i915 i2c_algo_bit crct10dif_pclmul crc32_pclmul drm_kms_helper ghash_clmulni_intel syscopyarea pcbc ahci hid_generic rtsx_pci_sdmmc sysfillrect aesni_intel usbhid sysimgblt i2c_hid fb_sys_fops aes_x86_64 crypto_simd glue_helper cryptd psmouse rtsx_pci libahci drm wmi hid pinctrl_sunrisepoint video pinctrl_intel
[11260.520526] CPU: 3 PID: 10707 Comm: evince Tainted: G      D         4.14.0+ #4
[11260.520528] Hardware name: Dell Inc. XPS 13 9350/0VM5NC, BIOS 1.2.3 01/08/2016
[11260.520530] task: ffff9a146167eac0 task.stack: ffffbe1d44a2c000
[11260.520532] RIP: 0010:audit_signal_cb+0x75/0xf0
[11260.520534] RSP: 0018:ffffbe1d44a2fba0 EFLAGS: 00010292
[11260.520536] RAX: ffffbe1d44a2fd18 RBX: ffff9a15e59f1fa8 RCX: 0000000000000000
[11260.520537] RDX: fffffffff042da90 RSI: 0000000000000006 RDI: ffff9a13f498c400
[11260.520539] RBP: ffffbe1d44a2fbb0 R08: 0000000000000044 R09: ffffbe1d44a2fbe6
[11260.520541] R10: ffffbe1d44a2fc50 R11: ffff9a155ffbf872 R12: ffffbe1d44a2fcf8
[11260.520542] R13: ffffffffb939a690 R14: ffff9a146167eac0 R15: 0000000000000000
[11260.520544] FS:  00007f19e39a3ac0(0000) GS:ffff9a1600d80000(0000) knlGS:0000000000000000
[11260.520546] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[11260.520547] CR2: ffffffff3bbbe160 CR3: 00000002748ac003 CR4: 00000000003606e0
[11260.520548] Call Trace:
[11260.520553]  common_lsm_audit+0x1c4/0x730
[11260.520557]  ? aa_compute_fperms+0x188/0x1b0
[11260.520559]  aa_audit_msg+0x22/0x30
[11260.520561]  ? aa_audit_msg+0x22/0x30
[11260.520563]  aa_check_perms+0xe8/0x100
[11260.520566]  profile_signal_perm.part.2+0x92/0xa0
[11260.520568]  aa_may_signal+0x1b0/0x200
[11260.520572]  apparmor_task_kill+0x50/0x100
[11260.520575]  security_task_kill+0x4b/0x70
[11260.520578]  check_kill_permission+0xe4/0x100
[11260.520581]  group_send_sig_info+0x1b/0x40
[11260.520583]  kill_pid_info+0x34/0x50
[11260.520585]  SYSC_kill+0xe0/0x1a0
[11260.520588]  ? ____fput+0xe/0x10
[11260.520590]  ? task_work_run+0x46/0xc0
[11260.520593]  SyS_kill+0xe/0x10
[11260.520596]  entry_SYSCALL_64_fastpath+0x1e/0xa9
[11260.520599] RIP: 0033:0x7f19e02ae457
[11260.520600] RSP: 002b:00007fff170ddc78 EFLAGS: 00000246 ORIG_RAX: 000000000000003e
[11260.520602] RAX: ffffffffffffffda RBX: 0000556f0c27add0 RCX: 00007f19e02ae457
[11260.520604] RDX: 0000000000000021 RSI: 0000000000000000 RDI: 00000000000008ac
[11260.520605] RBP: 00007f19e064e3e0 R08: 0000556f0c264800 R09: 0000000000000000
[11260.520607] R10: 00007f19e39a3ac0 R11: 0000000000000246 R12: 0000000000000000
[11260.520608] R13: 00007f19d40929ba R14: 00000000000008ac R15: 00007f19d40929c8
[11260.520610] Code: 18 48 89 df 41 b8 20 00 08 01 48 8b 42 10 48 8b 52 30 48 63 48 4c 48 8b 44 c8 48 31 c9 48 8b 70 38 e8 70 fd 00 00 5b 41 5c 5d c3 <48> 8b 14 d5 e0 0c a5 b9 48 c7 c6 34 ad cb b9 48 89 df e8 74 88 
[11260.520640] RIP: audit_signal_cb+0x75/0xf0 RSP: ffffbe1d44a2fba0
[11260.520641] CR2: ffffffff3bbbe160
[11260.520644] ---[ end trace 082a937c357a2a07 ]---

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From 1584814776630864816@xxx Thu Nov 23 00:32:28 +0000 2017
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