It looks like this issue is a bit random, with 4.4.0-137-lowlatency
amd64 kernel on gonzo, the kernel oops happened with sysfs and tee test.

** Description changed:

- This is a POTENTIAL REGRESSION found on a SRU testing node "gonzo", with
- 4.4 amd64 lowlatency kernel.
+ This is found on a SRU testing node "gonzo", with 4.4 amd64 lowlatency
+ kernel.
  
  This issue cannot be reproduced with the kernel in -updates (4.4.0-137)
  And cannot be reproduced with the AMD64 generic kernel in -proposed 
(4.4.0-138) as well
- 
  
  16:50:01 DEBUG| [stdout] timer STARTING
  16:50:05 ERROR| [stderr] 
/home/ubuntu/autotest/client/tests/ubuntu_stress_smoke_test/ubuntu_stress_smoke_test.sh:
 line 111: 39506 Killed                  ./stress-ng -v -t ${DURATION} --${s} 
${INSTANCES} ${STRESS_OPTIONS} &> ${TMP_FILE}
  16:50:05 DEBUG| [stdout] timer RETURNED 137
  16:50:05 DEBUG| [stdout] timer FAILED (kernel oopsed)
  16:50:05 DEBUG| [stdout] [ 1418.982110] BUG: unable to handle kernel paging 
request at 0000000100000001
  16:50:05 DEBUG| [stdout] [ 1419.065329] IP: [<ffffffff811f5ac7>] 
kmem_cache_alloc+0x77/0x1f0
- 16:50:05 DEBUG| [stdout] [ 1419.137102] PGD 16f6dd067 PUD 0 
- 16:50:05 DEBUG| [stdout] [ 1419.175602] Oops: 0000 [#6] SMP 
+ 16:50:05 DEBUG| [stdout] [ 1419.137102] PGD 16f6dd067 PUD 0
+ 16:50:05 DEBUG| [stdout] [ 1419.175602] Oops: 0000 [#6] SMP
  16:50:05 DEBUG| [stdout] [ 1419.214101] Modules linked in: unix_diag 
binfmt_misc vhost_net vhost macvtap cuse macvlan dccp_ipv4 dccp 
jitterentropy_rng algif_rng ghash_generic salsa20_generic salsa20_x86_64 
camellia_generic camellia_aesni_avx_x86_64 camellia_x86_64 cast6_avx_x86_64 
cast6_generic cast_common serpent_avx_x86_64 serpent_sse2_x86_64 
serpent_generic twofish_generic twofish_avx_x86_64 twofish_x86_64_3way 
twofish_x86_64 twofish_common xts algif_skcipher tgr192 wp512 rmd320 rmd256 
rmd160 rmd128 md4 algif_hash af_alg aufs kvm_amd kvm ipmi_devintf ipmi_ssif 
irqbypass dcdbas ipmi_si fam15h_power acpi_power_meter joydev input_leds 
ipmi_msghandler serio_raw i2c_piix4 k10temp amd64_edac_mod 8250_fintek mac_hid 
shpchp edac_mce_amd edac_core ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core 
ib_addr iscsi_tcp libiscsi_tcp libiscsi
  16:50:05 DEBUG| [stdout] [ 1420.062172]  scsi_transport_iscsi autofs4 btrfs 
raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor 
raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel mptsas mptscsih pata_acpi hid_generic aesni_intel 
aes_x86_64 mptbase lrw gf128mul glue_helper psmouse ahci ablk_helper usbhid 
cryptd pata_atiixp libahci scsi_transport_sas bnx2 hid
  16:50:05 DEBUG| [stdout] [ 1420.472200] CPU: 3 PID: 39506 Comm: 
ubuntu_stress_s Tainted: G      D         4.4.0-138-generic #164-Ubuntu
  16:50:05 DEBUG| [stdout] [ 1420.588693] Hardware name: Dell Inc. PowerEdge 
R415/08WNM9, BIOS 1.9.3 04/26/2012
  16:50:05 DEBUG| [stdout] [ 1420.678138] task: ffff880177823800 ti: 
ffff88016a5b0000 task.ti: ffff88016a5b0000
  16:50:05 DEBUG| [stdout] [ 1420.767584] RIP: 0010:[<ffffffff811f5ac7>]  
[<ffffffff811f5ac7>] kmem_cache_alloc+0x77/0x1f0
  16:50:05 DEBUG| [stdout] [ 1420.868478] RSP: 0018:ffff88016a5b3bd0  EFLAGS: 
00010202
  16:50:05 DEBUG| [stdout] [ 1420.931924] RAX: 0000000000000000 RBX: 
00000000024000c0 RCX: 000000000129e216
  16:50:05 DEBUG| [stdout] [ 1421.017209] RDX: 000000000129e215 RSI: 
00000000024000c0 RDI: 000000000001a5c0
  16:50:05 DEBUG| [stdout] [ 1421.102496] RBP: ffff88016a5b3c00 R08: 
ffff8802156da5c0 R09: 0000000100000001
  16:50:05 DEBUG| [stdout] [ 1421.187782] R10: ffff880000000ff0 R11: 
0000000000000ff0 R12: 00000000024000c0
  16:50:05 DEBUG| [stdout] [ 1421.273070] R13: ffffffff811d53e8 R14: 
ffff880215003b00 R15: ffff880215003b00
  16:50:05 DEBUG| [stdout] [ 1421.358354] FS:  00007f1323076700(0000) 
GS:ffff8802156c0000(0000) knlGS:0000000000000000
  16:50:05 DEBUG| [stdout] [ 1421.455081] CS:  0010 DS: 0000 ES: 0000 CR0: 
0000000080050033
  16:50:05 DEBUG| [stdout] [ 1421.523728] CR2: 0000000100000001 CR3: 
000000016f6dc000 CR4: 00000000000406f0
  16:50:05 DEBUG| [stdout] [ 1421.609013] Stack:
  16:50:05 DEBUG| [stdout] [ 1421.632941]  0000000000000000 ffff88019c080a28 
0000000000000000 ffffc00000000fff
  16:50:05 DEBUG| [stdout] [ 1421.721371]  00007fffffffefec ffff88020ff29000 
ffff88016a5b3c38 ffffffff811d53e8
  16:50:05 DEBUG| [stdout] [ 1421.809805]  0000000000000002 ffff88019c080a28 
ffffc00000000fff 00007fffffffefec
  16:50:05 DEBUG| [stdout] [ 1421.898237] Call Trace:
  16:50:05 DEBUG| [stdout] [ 1421.927367]  [<ffffffff811d53e8>] 
anon_vma_prepare+0x48/0x180
  16:50:05 DEBUG| [stdout] [ 1421.996017]  [<ffffffff811c8c3d>] 
handle_mm_fault+0x13ed/0x1b70
  16:50:05 DEBUG| [stdout] [ 1422.066743]  [<ffffffff812350cf>] ? 
atime_needs_update+0x6f/0xd0
  16:50:05 DEBUG| [stdout] [ 1422.138510]  [<ffffffff81235163>] ? 
touch_atime+0x33/0xd0
  16:50:05 DEBUG| [stdout] [ 1422.202997]  [<ffffffff8119781c>] ? 
generic_file_read_iter+0x5dc/0x6b0
  16:50:05 DEBUG| [stdout] [ 1422.281009]  [<ffffffff811cd5b8>] ? 
find_vma+0x68/0x70
  16:50:05 DEBUG| [stdout] [ 1422.342374]  [<ffffffff811c3176>] ? 
follow_page_mask+0x36/0x3a0
  16:50:05 DEBUG| [stdout] [ 1422.413100]  [<ffffffff811c35fe>] 
__get_user_pages+0x11e/0x600
  16:50:05 DEBUG| [stdout] [ 1422.482788]  [<ffffffff811c3ee2>] 
get_user_pages+0x52/0x60
  16:50:05 DEBUG| [stdout] [ 1422.548314]  [<ffffffff8121ea03>] 
copy_strings.isra.20+0x173/0x350
  16:50:05 DEBUG| [stdout] [ 1422.622161]  [<ffffffff8121ec14>] 
copy_strings_kernel+0x34/0x40
  16:50:05 DEBUG| [stdout] [ 1422.692898]  [<ffffffff8121f9cc>] 
do_execveat_common.isra.31+0x4cc/0x770
  16:50:05 DEBUG| [stdout] [ 1422.772986]  [<ffffffff8121feca>] 
SyS_execve+0x3a/0x50
  16:50:05 DEBUG| [stdout] [ 1422.834353]  [<ffffffff81857a25>] 
stub_execve+0x5/0x5
  16:50:05 DEBUG| [stdout] [ 1422.894679]  [<ffffffff818576ce>] ? 
entry_SYSCALL_64_fastpath+0x22/0xc1
- 16:50:05 DEBUG| [stdout] [ 1422.973724] Code: 08 65 4c 03 05 53 77 e1 7e 49 
83 78 10 00 4d 8b 08 0f 84 2b 01 00 00 4d 85 c9 0f 84 22 01 00 00 49 63 47 20 
48 8d 4a 01 49 8b 3f <49> 8b 1c 01 4c 89 c8 65 48 0f c7 0f 0f 94 c0 84 c0 74 bb 
49 63 
+ 16:50:05 DEBUG| [stdout] [ 1422.973724] Code: 08 65 4c 03 05 53 77 e1 7e 49 
83 78 10 00 4d 8b 08 0f 84 2b 01 00 00 4d 85 c9 0f 84 22 01 00 00 49 63 47 20 
48 8d 4a 01 49 8b 3f <49> 8b 1c 01 4c 89 c8 65 48 0f c7 0f 0f 94 c0 84 c0 74 bb 
49 63
  16:50:05 DEBUG| [stdout] [ 1423.199831] RIP  [<ffffffff811f5ac7>] 
kmem_cache_alloc+0x77/0x1f0
  16:50:05 DEBUG| [stdout] [ 1423.272646]  RSP <ffff88016a5b3bd0>
  16:50:05 DEBUG| [stdout] [ 1423.314250] CR2: 0000000100000001
  16:50:05 DEBUG| [stdout] [ 1423.353892] ---[ end trace 7c103db725e9179b ]---
- 16:50:05 DEBUG| [stdout]  
+ 16:50:05 DEBUG| [stdout]
  16:50:05 DEBUG| [stdout] timerfd STARTING
  16:50:10 DEBUG| [stdout] timerfd RETURNED 0
  16:50:10 DEBUG| [stdout] timerfd FAILED (kernel oopsed)
  16:50:10 DEBUG| [stdout] [ 1424.951012] BUG: unable to handle kernel paging 
request at 0000000100000001
  16:50:10 DEBUG| [stdout] [ 1425.034231] IP: [<ffffffff811f584b>] 
kmem_cache_alloc_trace+0x7b/0x1f0
- 16:50:10 DEBUG| [stdout] [ 1425.112252] PGD 2133e0067 PUD 0 
- 16:50:10 DEBUG| [stdout] [ 1425.150753] Oops: 0000 [#7] SMP 
+ 16:50:10 DEBUG| [stdout] [ 1425.112252] PGD 2133e0067 PUD 0
+ 16:50:10 DEBUG| [stdout] [ 1425.150753] Oops: 0000 [#7] SMP
  16:50:10 DEBUG| [stdout] [ 1425.189259] Modules linked in: unix_diag 
binfmt_misc vhost_net vhost macvtap cuse macvlan dccp_ipv4 dccp 
jitterentropy_rng algif_rng ghash_generic salsa20_generic salsa20_x86_64 
camellia_generic camellia_aesni_avx_x86_64 camellia_x86_64 cast6_avx_x86_64 
cast6_generic cast_common serpent_avx_x86_64 serpent_sse2_x86_64 
serpent_generic twofish_generic twofish_avx_x86_64 twofish_x86_64_3way 
twofish_x86_64 twofish_common xts algif_skcipher tgr192 wp512 rmd320 rmd256 
rmd160 rmd128 md4 algif_hash af_alg aufs kvm_amd kvm ipmi_devintf ipmi_ssif 
irqbypass dcdbas ipmi_si fam15h_power acpi_power_meter joydev input_leds 
ipmi_msghandler serio_raw i2c_piix4 k10temp amd64_edac_mod 8250_fintek mac_hid 
shpchp edac_mce_amd edac_core ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core 
ib_addr iscsi_tcp libiscsi_tcp libiscsi
  16:50:10 DEBUG| [stdout] [ 1426.037337]  scsi_transport_iscsi autofs4 btrfs 
raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor 
raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel mptsas mptscsih pata_acpi hid_generic aesni_intel 
aes_x86_64 mptbase lrw gf128mul glue_helper psmouse ahci ablk_helper usbhid 
cryptd pata_atiixp libahci scsi_transport_sas bnx2 hid
  16:50:10 DEBUG| [stdout] [ 1426.447365] CPU: 3 PID: 1404 Comm: irqbalance 
Tainted: G      D         4.4.0-138-generic #164-Ubuntu
  16:50:10 DEBUG| [stdout] [ 1426.557614] Hardware name: Dell Inc. PowerEdge 
R415/08WNM9, BIOS 1.9.3 04/26/2012
  16:50:10 DEBUG| [stdout] [ 1426.647061] task: ffff88020f444600 ti: 
ffff880211c50000 task.ti: ffff880211c50000
  16:50:10 DEBUG| [stdout] [ 1426.736514] RIP: 0010:[<ffffffff811f584b>]  
[<ffffffff811f584b>] kmem_cache_alloc_trace+0x7b/0x1f0
  16:50:10 DEBUG| [stdout] [ 1426.843647] RSP: 0018:ffff880211c53c20  EFLAGS: 
00010202
  16:50:10 DEBUG| [stdout] [ 1426.907100] RAX: 0000000000000000 RBX: 
00000000024080c0 RCX: 000000000129e216
  16:50:10 DEBUG| [stdout] [ 1426.992392] RDX: 000000000129e215 RSI: 
00000000024080c0 RDI: 000000000001a5c0
  16:50:10 DEBUG| [stdout] [ 1427.077678] RBP: ffff880211c53c60 R08: 
ffff8802156da5c0 R09: ffff880215003b00
  16:50:10 DEBUG| [stdout] [ 1427.162965] R10: 0000000100000001 R11: 
0000000000000000 R12: 00000000024080c0
  16:50:10 DEBUG| [stdout] [ 1427.248251] R13: ffffffff81285f92 R14: 
ffff88009b8fa700 R15: ffff880215003b00
  16:50:10 DEBUG| [stdout] [ 1427.333539] FS:  00007efedee3e740(0000) 
GS:ffff8802156c0000(0000) knlGS:0000000000000000
  16:50:10 DEBUG| [stdout] [ 1427.430270] CS:  0010 DS: 0000 ES: 0000 CR0: 
0000000080050033
  16:50:10 DEBUG| [stdout] [ 1427.498916] CR2: 0000000100000001 CR3: 
000000021219f000 CR4: 00000000000406f0
  16:50:10 DEBUG| [stdout] [ 1427.584201] Stack:
  16:50:10 DEBUG| [stdout] [ 1427.608128]  ffff880211c53c40 ffff880211c53c58 
0000000000000028 ffff880213963a40
  16:50:10 DEBUG| [stdout] [ 1427.696560]  ffff880213741fe8 0000000000000000 
ffff88009b8fa700 ffff88009b8fa710
  16:50:10 DEBUG| [stdout] [ 1427.784992]  ffff880211c53c98 ffffffff81285f92 
ffff88009b8fa700 ffff88020f81f800
  16:50:10 DEBUG| [stdout] [ 1427.873425] Call Trace:
  16:50:10 DEBUG| [stdout] [ 1427.902556]  [<ffffffff81285f92>] 
proc_reg_open+0x32/0x110
  16:50:10 DEBUG| [stdout] [ 1427.968086]  [<ffffffff812159c2>] 
do_dentry_open+0x202/0x310
  16:50:10 DEBUG| [stdout] [ 1428.035699]  [<ffffffff81285f60>] ? 
proc_reg_release+0x70/0x70
  16:50:10 DEBUG| [stdout] [ 1428.105391]  [<ffffffff81216b54>] 
vfs_open+0x54/0x80
  16:50:10 DEBUG| [stdout] [ 1428.164686]  [<ffffffff812228ab>] ? 
may_open+0x5b/0xf0
  16:50:10 DEBUG| [stdout] [ 1428.226058]  [<ffffffff81226b6c>] 
path_openat+0x59c/0x1340
  16:50:10 DEBUG| [stdout] [ 1428.291592]  [<ffffffff81852ffd>] ? 
__schedule+0x30d/0x7f0
  16:50:10 DEBUG| [stdout] [ 1428.357122]  [<ffffffff81852ff1>] ? 
__schedule+0x301/0x7f0
  16:50:10 DEBUG| [stdout] [ 1428.422648]  [<ffffffff81228b01>] 
do_filp_open+0x91/0x100
- 16:50:10 DEBUG| [stdout]  
+ 16:50:10 DEBUG| [stdout]
  16:50:10 DEBUG| [stdout] tlb-shootdown STARTING
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-138-lowlatency 4.4.0-138.164
  ProcVersionSignature: User Name 4.4.0-138.164-lowlatency 4.4.155
  Uname: Linux 4.4.0-138-lowlatency x86_64
  AlsaDevices:
-  total 0
-  crw-rw---- 1 root audio 116,  1 Oct  5 07:58 seq
-  crw-rw---- 1 root audio 116, 33 Oct  5 07:58 timer
+  total 0
+  crw-rw---- 1 root audio 116,  1 Oct  5 07:58 seq
+  crw-rw---- 1 root audio 116, 33 Oct  5 07:58 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  CurrentDmesg:
-  
+ 
  Date: Fri Oct  5 07:59:12 2018
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb:
-  Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
-  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
-  Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
-  Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
+  Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
+  Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. PowerEdge R310
  PciMultimedia:
-  
+ 
  ProcFB:
-  
+ 
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-138-lowlatency 
root=UUID=7b91a2b8-2e02-407e-a51d-766f6d969020 ro console=ttyS0,1152008n1
  RelatedPackageVersions:
-  linux-restricted-modules-4.4.0-138-lowlatency N/A
-  linux-backports-modules-4.4.0-138-lowlatency  N/A
-  linux-firmware                                1.157.20
+  linux-restricted-modules-4.4.0-138-lowlatency N/A
+  linux-backports-modules-4.4.0-138-lowlatency  N/A
+  linux-firmware                                1.157.20
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/17/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.8.2
  dmi.board.name: 05XKKK
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A05
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.8.2:bd08/17/2011:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
  dmi.product.name: PowerEdge R310
  dmi.sys.vendor: Dell Inc.

** Description changed:

  This is found on a SRU testing node "gonzo", with 4.4 amd64 lowlatency
  kernel.
  
- This issue cannot be reproduced with the kernel in -updates (4.4.0-137)
+ This issue cannot be reproduced with the kernel 4.4.0-137 in -updates (a bit 
random, see comment #4)
  And cannot be reproduced with the AMD64 generic kernel in -proposed 
(4.4.0-138) as well
  
  16:50:01 DEBUG| [stdout] timer STARTING
  16:50:05 ERROR| [stderr] 
/home/ubuntu/autotest/client/tests/ubuntu_stress_smoke_test/ubuntu_stress_smoke_test.sh:
 line 111: 39506 Killed                  ./stress-ng -v -t ${DURATION} --${s} 
${INSTANCES} ${STRESS_OPTIONS} &> ${TMP_FILE}
  16:50:05 DEBUG| [stdout] timer RETURNED 137
  16:50:05 DEBUG| [stdout] timer FAILED (kernel oopsed)
  16:50:05 DEBUG| [stdout] [ 1418.982110] BUG: unable to handle kernel paging 
request at 0000000100000001
  16:50:05 DEBUG| [stdout] [ 1419.065329] IP: [<ffffffff811f5ac7>] 
kmem_cache_alloc+0x77/0x1f0
  16:50:05 DEBUG| [stdout] [ 1419.137102] PGD 16f6dd067 PUD 0
  16:50:05 DEBUG| [stdout] [ 1419.175602] Oops: 0000 [#6] SMP
  16:50:05 DEBUG| [stdout] [ 1419.214101] Modules linked in: unix_diag 
binfmt_misc vhost_net vhost macvtap cuse macvlan dccp_ipv4 dccp 
jitterentropy_rng algif_rng ghash_generic salsa20_generic salsa20_x86_64 
camellia_generic camellia_aesni_avx_x86_64 camellia_x86_64 cast6_avx_x86_64 
cast6_generic cast_common serpent_avx_x86_64 serpent_sse2_x86_64 
serpent_generic twofish_generic twofish_avx_x86_64 twofish_x86_64_3way 
twofish_x86_64 twofish_common xts algif_skcipher tgr192 wp512 rmd320 rmd256 
rmd160 rmd128 md4 algif_hash af_alg aufs kvm_amd kvm ipmi_devintf ipmi_ssif 
irqbypass dcdbas ipmi_si fam15h_power acpi_power_meter joydev input_leds 
ipmi_msghandler serio_raw i2c_piix4 k10temp amd64_edac_mod 8250_fintek mac_hid 
shpchp edac_mce_amd edac_core ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core 
ib_addr iscsi_tcp libiscsi_tcp libiscsi
  16:50:05 DEBUG| [stdout] [ 1420.062172]  scsi_transport_iscsi autofs4 btrfs 
raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor 
raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel mptsas mptscsih pata_acpi hid_generic aesni_intel 
aes_x86_64 mptbase lrw gf128mul glue_helper psmouse ahci ablk_helper usbhid 
cryptd pata_atiixp libahci scsi_transport_sas bnx2 hid
  16:50:05 DEBUG| [stdout] [ 1420.472200] CPU: 3 PID: 39506 Comm: 
ubuntu_stress_s Tainted: G      D         4.4.0-138-generic #164-Ubuntu
  16:50:05 DEBUG| [stdout] [ 1420.588693] Hardware name: Dell Inc. PowerEdge 
R415/08WNM9, BIOS 1.9.3 04/26/2012
  16:50:05 DEBUG| [stdout] [ 1420.678138] task: ffff880177823800 ti: 
ffff88016a5b0000 task.ti: ffff88016a5b0000
  16:50:05 DEBUG| [stdout] [ 1420.767584] RIP: 0010:[<ffffffff811f5ac7>]  
[<ffffffff811f5ac7>] kmem_cache_alloc+0x77/0x1f0
  16:50:05 DEBUG| [stdout] [ 1420.868478] RSP: 0018:ffff88016a5b3bd0  EFLAGS: 
00010202
  16:50:05 DEBUG| [stdout] [ 1420.931924] RAX: 0000000000000000 RBX: 
00000000024000c0 RCX: 000000000129e216
  16:50:05 DEBUG| [stdout] [ 1421.017209] RDX: 000000000129e215 RSI: 
00000000024000c0 RDI: 000000000001a5c0
  16:50:05 DEBUG| [stdout] [ 1421.102496] RBP: ffff88016a5b3c00 R08: 
ffff8802156da5c0 R09: 0000000100000001
  16:50:05 DEBUG| [stdout] [ 1421.187782] R10: ffff880000000ff0 R11: 
0000000000000ff0 R12: 00000000024000c0
  16:50:05 DEBUG| [stdout] [ 1421.273070] R13: ffffffff811d53e8 R14: 
ffff880215003b00 R15: ffff880215003b00
  16:50:05 DEBUG| [stdout] [ 1421.358354] FS:  00007f1323076700(0000) 
GS:ffff8802156c0000(0000) knlGS:0000000000000000
  16:50:05 DEBUG| [stdout] [ 1421.455081] CS:  0010 DS: 0000 ES: 0000 CR0: 
0000000080050033
  16:50:05 DEBUG| [stdout] [ 1421.523728] CR2: 0000000100000001 CR3: 
000000016f6dc000 CR4: 00000000000406f0
  16:50:05 DEBUG| [stdout] [ 1421.609013] Stack:
  16:50:05 DEBUG| [stdout] [ 1421.632941]  0000000000000000 ffff88019c080a28 
0000000000000000 ffffc00000000fff
  16:50:05 DEBUG| [stdout] [ 1421.721371]  00007fffffffefec ffff88020ff29000 
ffff88016a5b3c38 ffffffff811d53e8
  16:50:05 DEBUG| [stdout] [ 1421.809805]  0000000000000002 ffff88019c080a28 
ffffc00000000fff 00007fffffffefec
  16:50:05 DEBUG| [stdout] [ 1421.898237] Call Trace:
  16:50:05 DEBUG| [stdout] [ 1421.927367]  [<ffffffff811d53e8>] 
anon_vma_prepare+0x48/0x180
  16:50:05 DEBUG| [stdout] [ 1421.996017]  [<ffffffff811c8c3d>] 
handle_mm_fault+0x13ed/0x1b70
  16:50:05 DEBUG| [stdout] [ 1422.066743]  [<ffffffff812350cf>] ? 
atime_needs_update+0x6f/0xd0
  16:50:05 DEBUG| [stdout] [ 1422.138510]  [<ffffffff81235163>] ? 
touch_atime+0x33/0xd0
  16:50:05 DEBUG| [stdout] [ 1422.202997]  [<ffffffff8119781c>] ? 
generic_file_read_iter+0x5dc/0x6b0
  16:50:05 DEBUG| [stdout] [ 1422.281009]  [<ffffffff811cd5b8>] ? 
find_vma+0x68/0x70
  16:50:05 DEBUG| [stdout] [ 1422.342374]  [<ffffffff811c3176>] ? 
follow_page_mask+0x36/0x3a0
  16:50:05 DEBUG| [stdout] [ 1422.413100]  [<ffffffff811c35fe>] 
__get_user_pages+0x11e/0x600
  16:50:05 DEBUG| [stdout] [ 1422.482788]  [<ffffffff811c3ee2>] 
get_user_pages+0x52/0x60
  16:50:05 DEBUG| [stdout] [ 1422.548314]  [<ffffffff8121ea03>] 
copy_strings.isra.20+0x173/0x350
  16:50:05 DEBUG| [stdout] [ 1422.622161]  [<ffffffff8121ec14>] 
copy_strings_kernel+0x34/0x40
  16:50:05 DEBUG| [stdout] [ 1422.692898]  [<ffffffff8121f9cc>] 
do_execveat_common.isra.31+0x4cc/0x770
  16:50:05 DEBUG| [stdout] [ 1422.772986]  [<ffffffff8121feca>] 
SyS_execve+0x3a/0x50
  16:50:05 DEBUG| [stdout] [ 1422.834353]  [<ffffffff81857a25>] 
stub_execve+0x5/0x5
  16:50:05 DEBUG| [stdout] [ 1422.894679]  [<ffffffff818576ce>] ? 
entry_SYSCALL_64_fastpath+0x22/0xc1
  16:50:05 DEBUG| [stdout] [ 1422.973724] Code: 08 65 4c 03 05 53 77 e1 7e 49 
83 78 10 00 4d 8b 08 0f 84 2b 01 00 00 4d 85 c9 0f 84 22 01 00 00 49 63 47 20 
48 8d 4a 01 49 8b 3f <49> 8b 1c 01 4c 89 c8 65 48 0f c7 0f 0f 94 c0 84 c0 74 bb 
49 63
  16:50:05 DEBUG| [stdout] [ 1423.199831] RIP  [<ffffffff811f5ac7>] 
kmem_cache_alloc+0x77/0x1f0
  16:50:05 DEBUG| [stdout] [ 1423.272646]  RSP <ffff88016a5b3bd0>
  16:50:05 DEBUG| [stdout] [ 1423.314250] CR2: 0000000100000001
  16:50:05 DEBUG| [stdout] [ 1423.353892] ---[ end trace 7c103db725e9179b ]---
  16:50:05 DEBUG| [stdout]
  16:50:05 DEBUG| [stdout] timerfd STARTING
  16:50:10 DEBUG| [stdout] timerfd RETURNED 0
  16:50:10 DEBUG| [stdout] timerfd FAILED (kernel oopsed)
  16:50:10 DEBUG| [stdout] [ 1424.951012] BUG: unable to handle kernel paging 
request at 0000000100000001
  16:50:10 DEBUG| [stdout] [ 1425.034231] IP: [<ffffffff811f584b>] 
kmem_cache_alloc_trace+0x7b/0x1f0
  16:50:10 DEBUG| [stdout] [ 1425.112252] PGD 2133e0067 PUD 0
  16:50:10 DEBUG| [stdout] [ 1425.150753] Oops: 0000 [#7] SMP
  16:50:10 DEBUG| [stdout] [ 1425.189259] Modules linked in: unix_diag 
binfmt_misc vhost_net vhost macvtap cuse macvlan dccp_ipv4 dccp 
jitterentropy_rng algif_rng ghash_generic salsa20_generic salsa20_x86_64 
camellia_generic camellia_aesni_avx_x86_64 camellia_x86_64 cast6_avx_x86_64 
cast6_generic cast_common serpent_avx_x86_64 serpent_sse2_x86_64 
serpent_generic twofish_generic twofish_avx_x86_64 twofish_x86_64_3way 
twofish_x86_64 twofish_common xts algif_skcipher tgr192 wp512 rmd320 rmd256 
rmd160 rmd128 md4 algif_hash af_alg aufs kvm_amd kvm ipmi_devintf ipmi_ssif 
irqbypass dcdbas ipmi_si fam15h_power acpi_power_meter joydev input_leds 
ipmi_msghandler serio_raw i2c_piix4 k10temp amd64_edac_mod 8250_fintek mac_hid 
shpchp edac_mce_amd edac_core ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core 
ib_addr iscsi_tcp libiscsi_tcp libiscsi
  16:50:10 DEBUG| [stdout] [ 1426.037337]  scsi_transport_iscsi autofs4 btrfs 
raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor 
raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel mptsas mptscsih pata_acpi hid_generic aesni_intel 
aes_x86_64 mptbase lrw gf128mul glue_helper psmouse ahci ablk_helper usbhid 
cryptd pata_atiixp libahci scsi_transport_sas bnx2 hid
  16:50:10 DEBUG| [stdout] [ 1426.447365] CPU: 3 PID: 1404 Comm: irqbalance 
Tainted: G      D         4.4.0-138-generic #164-Ubuntu
  16:50:10 DEBUG| [stdout] [ 1426.557614] Hardware name: Dell Inc. PowerEdge 
R415/08WNM9, BIOS 1.9.3 04/26/2012
  16:50:10 DEBUG| [stdout] [ 1426.647061] task: ffff88020f444600 ti: 
ffff880211c50000 task.ti: ffff880211c50000
  16:50:10 DEBUG| [stdout] [ 1426.736514] RIP: 0010:[<ffffffff811f584b>]  
[<ffffffff811f584b>] kmem_cache_alloc_trace+0x7b/0x1f0
  16:50:10 DEBUG| [stdout] [ 1426.843647] RSP: 0018:ffff880211c53c20  EFLAGS: 
00010202
  16:50:10 DEBUG| [stdout] [ 1426.907100] RAX: 0000000000000000 RBX: 
00000000024080c0 RCX: 000000000129e216
  16:50:10 DEBUG| [stdout] [ 1426.992392] RDX: 000000000129e215 RSI: 
00000000024080c0 RDI: 000000000001a5c0
  16:50:10 DEBUG| [stdout] [ 1427.077678] RBP: ffff880211c53c60 R08: 
ffff8802156da5c0 R09: ffff880215003b00
  16:50:10 DEBUG| [stdout] [ 1427.162965] R10: 0000000100000001 R11: 
0000000000000000 R12: 00000000024080c0
  16:50:10 DEBUG| [stdout] [ 1427.248251] R13: ffffffff81285f92 R14: 
ffff88009b8fa700 R15: ffff880215003b00
  16:50:10 DEBUG| [stdout] [ 1427.333539] FS:  00007efedee3e740(0000) 
GS:ffff8802156c0000(0000) knlGS:0000000000000000
  16:50:10 DEBUG| [stdout] [ 1427.430270] CS:  0010 DS: 0000 ES: 0000 CR0: 
0000000080050033
  16:50:10 DEBUG| [stdout] [ 1427.498916] CR2: 0000000100000001 CR3: 
000000021219f000 CR4: 00000000000406f0
  16:50:10 DEBUG| [stdout] [ 1427.584201] Stack:
  16:50:10 DEBUG| [stdout] [ 1427.608128]  ffff880211c53c40 ffff880211c53c58 
0000000000000028 ffff880213963a40
  16:50:10 DEBUG| [stdout] [ 1427.696560]  ffff880213741fe8 0000000000000000 
ffff88009b8fa700 ffff88009b8fa710
  16:50:10 DEBUG| [stdout] [ 1427.784992]  ffff880211c53c98 ffffffff81285f92 
ffff88009b8fa700 ffff88020f81f800
  16:50:10 DEBUG| [stdout] [ 1427.873425] Call Trace:
  16:50:10 DEBUG| [stdout] [ 1427.902556]  [<ffffffff81285f92>] 
proc_reg_open+0x32/0x110
  16:50:10 DEBUG| [stdout] [ 1427.968086]  [<ffffffff812159c2>] 
do_dentry_open+0x202/0x310
  16:50:10 DEBUG| [stdout] [ 1428.035699]  [<ffffffff81285f60>] ? 
proc_reg_release+0x70/0x70
  16:50:10 DEBUG| [stdout] [ 1428.105391]  [<ffffffff81216b54>] 
vfs_open+0x54/0x80
  16:50:10 DEBUG| [stdout] [ 1428.164686]  [<ffffffff812228ab>] ? 
may_open+0x5b/0xf0
  16:50:10 DEBUG| [stdout] [ 1428.226058]  [<ffffffff81226b6c>] 
path_openat+0x59c/0x1340
  16:50:10 DEBUG| [stdout] [ 1428.291592]  [<ffffffff81852ffd>] ? 
__schedule+0x30d/0x7f0
  16:50:10 DEBUG| [stdout] [ 1428.357122]  [<ffffffff81852ff1>] ? 
__schedule+0x301/0x7f0
  16:50:10 DEBUG| [stdout] [ 1428.422648]  [<ffffffff81228b01>] 
do_filp_open+0x91/0x100
  16:50:10 DEBUG| [stdout]
  16:50:10 DEBUG| [stdout] tlb-shootdown STARTING
  
  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-138-lowlatency 4.4.0-138.164
  ProcVersionSignature: User Name 4.4.0-138.164-lowlatency 4.4.155
  Uname: Linux 4.4.0-138-lowlatency x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Oct  5 07:58 seq
   crw-rw---- 1 root audio 116, 33 Oct  5 07:58 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  CurrentDmesg:
  
  Date: Fri Oct  5 07:59:12 2018
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb:
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. PowerEdge R310
  PciMultimedia:
  
  ProcFB:
  
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-138-lowlatency 
root=UUID=7b91a2b8-2e02-407e-a51d-766f6d969020 ro console=ttyS0,1152008n1
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-138-lowlatency N/A
   linux-backports-modules-4.4.0-138-lowlatency  N/A
   linux-firmware                                1.157.20
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/17/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.8.2
  dmi.board.name: 05XKKK
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A05
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.8.2:bd08/17/2011:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
  dmi.product.name: PowerEdge R310
  dmi.sys.vendor: Dell Inc.

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1796250

Title:
  timer test in ubuntu_stress_smoke_test will cause kernel oops on
  X-lowlatency

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  This is found on a SRU testing node "gonzo", with 4.4 amd64 lowlatency
  kernel.

  This issue cannot be reproduced with the kernel 4.4.0-137 in -updates (a bit 
random, see comment #4)
  And cannot be reproduced with the AMD64 generic kernel in -proposed 
(4.4.0-138) as well

  16:50:01 DEBUG| [stdout] timer STARTING
  16:50:05 ERROR| [stderr] 
/home/ubuntu/autotest/client/tests/ubuntu_stress_smoke_test/ubuntu_stress_smoke_test.sh:
 line 111: 39506 Killed                  ./stress-ng -v -t ${DURATION} --${s} 
${INSTANCES} ${STRESS_OPTIONS} &> ${TMP_FILE}
  16:50:05 DEBUG| [stdout] timer RETURNED 137
  16:50:05 DEBUG| [stdout] timer FAILED (kernel oopsed)
  16:50:05 DEBUG| [stdout] [ 1418.982110] BUG: unable to handle kernel paging 
request at 0000000100000001
  16:50:05 DEBUG| [stdout] [ 1419.065329] IP: [<ffffffff811f5ac7>] 
kmem_cache_alloc+0x77/0x1f0
  16:50:05 DEBUG| [stdout] [ 1419.137102] PGD 16f6dd067 PUD 0
  16:50:05 DEBUG| [stdout] [ 1419.175602] Oops: 0000 [#6] SMP
  16:50:05 DEBUG| [stdout] [ 1419.214101] Modules linked in: unix_diag 
binfmt_misc vhost_net vhost macvtap cuse macvlan dccp_ipv4 dccp 
jitterentropy_rng algif_rng ghash_generic salsa20_generic salsa20_x86_64 
camellia_generic camellia_aesni_avx_x86_64 camellia_x86_64 cast6_avx_x86_64 
cast6_generic cast_common serpent_avx_x86_64 serpent_sse2_x86_64 
serpent_generic twofish_generic twofish_avx_x86_64 twofish_x86_64_3way 
twofish_x86_64 twofish_common xts algif_skcipher tgr192 wp512 rmd320 rmd256 
rmd160 rmd128 md4 algif_hash af_alg aufs kvm_amd kvm ipmi_devintf ipmi_ssif 
irqbypass dcdbas ipmi_si fam15h_power acpi_power_meter joydev input_leds 
ipmi_msghandler serio_raw i2c_piix4 k10temp amd64_edac_mod 8250_fintek mac_hid 
shpchp edac_mce_amd edac_core ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core 
ib_addr iscsi_tcp libiscsi_tcp libiscsi
  16:50:05 DEBUG| [stdout] [ 1420.062172]  scsi_transport_iscsi autofs4 btrfs 
raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor 
raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel mptsas mptscsih pata_acpi hid_generic aesni_intel 
aes_x86_64 mptbase lrw gf128mul glue_helper psmouse ahci ablk_helper usbhid 
cryptd pata_atiixp libahci scsi_transport_sas bnx2 hid
  16:50:05 DEBUG| [stdout] [ 1420.472200] CPU: 3 PID: 39506 Comm: 
ubuntu_stress_s Tainted: G      D         4.4.0-138-generic #164-Ubuntu
  16:50:05 DEBUG| [stdout] [ 1420.588693] Hardware name: Dell Inc. PowerEdge 
R415/08WNM9, BIOS 1.9.3 04/26/2012
  16:50:05 DEBUG| [stdout] [ 1420.678138] task: ffff880177823800 ti: 
ffff88016a5b0000 task.ti: ffff88016a5b0000
  16:50:05 DEBUG| [stdout] [ 1420.767584] RIP: 0010:[<ffffffff811f5ac7>]  
[<ffffffff811f5ac7>] kmem_cache_alloc+0x77/0x1f0
  16:50:05 DEBUG| [stdout] [ 1420.868478] RSP: 0018:ffff88016a5b3bd0  EFLAGS: 
00010202
  16:50:05 DEBUG| [stdout] [ 1420.931924] RAX: 0000000000000000 RBX: 
00000000024000c0 RCX: 000000000129e216
  16:50:05 DEBUG| [stdout] [ 1421.017209] RDX: 000000000129e215 RSI: 
00000000024000c0 RDI: 000000000001a5c0
  16:50:05 DEBUG| [stdout] [ 1421.102496] RBP: ffff88016a5b3c00 R08: 
ffff8802156da5c0 R09: 0000000100000001
  16:50:05 DEBUG| [stdout] [ 1421.187782] R10: ffff880000000ff0 R11: 
0000000000000ff0 R12: 00000000024000c0
  16:50:05 DEBUG| [stdout] [ 1421.273070] R13: ffffffff811d53e8 R14: 
ffff880215003b00 R15: ffff880215003b00
  16:50:05 DEBUG| [stdout] [ 1421.358354] FS:  00007f1323076700(0000) 
GS:ffff8802156c0000(0000) knlGS:0000000000000000
  16:50:05 DEBUG| [stdout] [ 1421.455081] CS:  0010 DS: 0000 ES: 0000 CR0: 
0000000080050033
  16:50:05 DEBUG| [stdout] [ 1421.523728] CR2: 0000000100000001 CR3: 
000000016f6dc000 CR4: 00000000000406f0
  16:50:05 DEBUG| [stdout] [ 1421.609013] Stack:
  16:50:05 DEBUG| [stdout] [ 1421.632941]  0000000000000000 ffff88019c080a28 
0000000000000000 ffffc00000000fff
  16:50:05 DEBUG| [stdout] [ 1421.721371]  00007fffffffefec ffff88020ff29000 
ffff88016a5b3c38 ffffffff811d53e8
  16:50:05 DEBUG| [stdout] [ 1421.809805]  0000000000000002 ffff88019c080a28 
ffffc00000000fff 00007fffffffefec
  16:50:05 DEBUG| [stdout] [ 1421.898237] Call Trace:
  16:50:05 DEBUG| [stdout] [ 1421.927367]  [<ffffffff811d53e8>] 
anon_vma_prepare+0x48/0x180
  16:50:05 DEBUG| [stdout] [ 1421.996017]  [<ffffffff811c8c3d>] 
handle_mm_fault+0x13ed/0x1b70
  16:50:05 DEBUG| [stdout] [ 1422.066743]  [<ffffffff812350cf>] ? 
atime_needs_update+0x6f/0xd0
  16:50:05 DEBUG| [stdout] [ 1422.138510]  [<ffffffff81235163>] ? 
touch_atime+0x33/0xd0
  16:50:05 DEBUG| [stdout] [ 1422.202997]  [<ffffffff8119781c>] ? 
generic_file_read_iter+0x5dc/0x6b0
  16:50:05 DEBUG| [stdout] [ 1422.281009]  [<ffffffff811cd5b8>] ? 
find_vma+0x68/0x70
  16:50:05 DEBUG| [stdout] [ 1422.342374]  [<ffffffff811c3176>] ? 
follow_page_mask+0x36/0x3a0
  16:50:05 DEBUG| [stdout] [ 1422.413100]  [<ffffffff811c35fe>] 
__get_user_pages+0x11e/0x600
  16:50:05 DEBUG| [stdout] [ 1422.482788]  [<ffffffff811c3ee2>] 
get_user_pages+0x52/0x60
  16:50:05 DEBUG| [stdout] [ 1422.548314]  [<ffffffff8121ea03>] 
copy_strings.isra.20+0x173/0x350
  16:50:05 DEBUG| [stdout] [ 1422.622161]  [<ffffffff8121ec14>] 
copy_strings_kernel+0x34/0x40
  16:50:05 DEBUG| [stdout] [ 1422.692898]  [<ffffffff8121f9cc>] 
do_execveat_common.isra.31+0x4cc/0x770
  16:50:05 DEBUG| [stdout] [ 1422.772986]  [<ffffffff8121feca>] 
SyS_execve+0x3a/0x50
  16:50:05 DEBUG| [stdout] [ 1422.834353]  [<ffffffff81857a25>] 
stub_execve+0x5/0x5
  16:50:05 DEBUG| [stdout] [ 1422.894679]  [<ffffffff818576ce>] ? 
entry_SYSCALL_64_fastpath+0x22/0xc1
  16:50:05 DEBUG| [stdout] [ 1422.973724] Code: 08 65 4c 03 05 53 77 e1 7e 49 
83 78 10 00 4d 8b 08 0f 84 2b 01 00 00 4d 85 c9 0f 84 22 01 00 00 49 63 47 20 
48 8d 4a 01 49 8b 3f <49> 8b 1c 01 4c 89 c8 65 48 0f c7 0f 0f 94 c0 84 c0 74 bb 
49 63
  16:50:05 DEBUG| [stdout] [ 1423.199831] RIP  [<ffffffff811f5ac7>] 
kmem_cache_alloc+0x77/0x1f0
  16:50:05 DEBUG| [stdout] [ 1423.272646]  RSP <ffff88016a5b3bd0>
  16:50:05 DEBUG| [stdout] [ 1423.314250] CR2: 0000000100000001
  16:50:05 DEBUG| [stdout] [ 1423.353892] ---[ end trace 7c103db725e9179b ]---
  16:50:05 DEBUG| [stdout]
  16:50:05 DEBUG| [stdout] timerfd STARTING
  16:50:10 DEBUG| [stdout] timerfd RETURNED 0
  16:50:10 DEBUG| [stdout] timerfd FAILED (kernel oopsed)
  16:50:10 DEBUG| [stdout] [ 1424.951012] BUG: unable to handle kernel paging 
request at 0000000100000001
  16:50:10 DEBUG| [stdout] [ 1425.034231] IP: [<ffffffff811f584b>] 
kmem_cache_alloc_trace+0x7b/0x1f0
  16:50:10 DEBUG| [stdout] [ 1425.112252] PGD 2133e0067 PUD 0
  16:50:10 DEBUG| [stdout] [ 1425.150753] Oops: 0000 [#7] SMP
  16:50:10 DEBUG| [stdout] [ 1425.189259] Modules linked in: unix_diag 
binfmt_misc vhost_net vhost macvtap cuse macvlan dccp_ipv4 dccp 
jitterentropy_rng algif_rng ghash_generic salsa20_generic salsa20_x86_64 
camellia_generic camellia_aesni_avx_x86_64 camellia_x86_64 cast6_avx_x86_64 
cast6_generic cast_common serpent_avx_x86_64 serpent_sse2_x86_64 
serpent_generic twofish_generic twofish_avx_x86_64 twofish_x86_64_3way 
twofish_x86_64 twofish_common xts algif_skcipher tgr192 wp512 rmd320 rmd256 
rmd160 rmd128 md4 algif_hash af_alg aufs kvm_amd kvm ipmi_devintf ipmi_ssif 
irqbypass dcdbas ipmi_si fam15h_power acpi_power_meter joydev input_leds 
ipmi_msghandler serio_raw i2c_piix4 k10temp amd64_edac_mod 8250_fintek mac_hid 
shpchp edac_mce_amd edac_core ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core 
ib_addr iscsi_tcp libiscsi_tcp libiscsi
  16:50:10 DEBUG| [stdout] [ 1426.037337]  scsi_transport_iscsi autofs4 btrfs 
raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor 
raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul 
ghash_clmulni_intel mptsas mptscsih pata_acpi hid_generic aesni_intel 
aes_x86_64 mptbase lrw gf128mul glue_helper psmouse ahci ablk_helper usbhid 
cryptd pata_atiixp libahci scsi_transport_sas bnx2 hid
  16:50:10 DEBUG| [stdout] [ 1426.447365] CPU: 3 PID: 1404 Comm: irqbalance 
Tainted: G      D         4.4.0-138-generic #164-Ubuntu
  16:50:10 DEBUG| [stdout] [ 1426.557614] Hardware name: Dell Inc. PowerEdge 
R415/08WNM9, BIOS 1.9.3 04/26/2012
  16:50:10 DEBUG| [stdout] [ 1426.647061] task: ffff88020f444600 ti: 
ffff880211c50000 task.ti: ffff880211c50000
  16:50:10 DEBUG| [stdout] [ 1426.736514] RIP: 0010:[<ffffffff811f584b>]  
[<ffffffff811f584b>] kmem_cache_alloc_trace+0x7b/0x1f0
  16:50:10 DEBUG| [stdout] [ 1426.843647] RSP: 0018:ffff880211c53c20  EFLAGS: 
00010202
  16:50:10 DEBUG| [stdout] [ 1426.907100] RAX: 0000000000000000 RBX: 
00000000024080c0 RCX: 000000000129e216
  16:50:10 DEBUG| [stdout] [ 1426.992392] RDX: 000000000129e215 RSI: 
00000000024080c0 RDI: 000000000001a5c0
  16:50:10 DEBUG| [stdout] [ 1427.077678] RBP: ffff880211c53c60 R08: 
ffff8802156da5c0 R09: ffff880215003b00
  16:50:10 DEBUG| [stdout] [ 1427.162965] R10: 0000000100000001 R11: 
0000000000000000 R12: 00000000024080c0
  16:50:10 DEBUG| [stdout] [ 1427.248251] R13: ffffffff81285f92 R14: 
ffff88009b8fa700 R15: ffff880215003b00
  16:50:10 DEBUG| [stdout] [ 1427.333539] FS:  00007efedee3e740(0000) 
GS:ffff8802156c0000(0000) knlGS:0000000000000000
  16:50:10 DEBUG| [stdout] [ 1427.430270] CS:  0010 DS: 0000 ES: 0000 CR0: 
0000000080050033
  16:50:10 DEBUG| [stdout] [ 1427.498916] CR2: 0000000100000001 CR3: 
000000021219f000 CR4: 00000000000406f0
  16:50:10 DEBUG| [stdout] [ 1427.584201] Stack:
  16:50:10 DEBUG| [stdout] [ 1427.608128]  ffff880211c53c40 ffff880211c53c58 
0000000000000028 ffff880213963a40
  16:50:10 DEBUG| [stdout] [ 1427.696560]  ffff880213741fe8 0000000000000000 
ffff88009b8fa700 ffff88009b8fa710
  16:50:10 DEBUG| [stdout] [ 1427.784992]  ffff880211c53c98 ffffffff81285f92 
ffff88009b8fa700 ffff88020f81f800
  16:50:10 DEBUG| [stdout] [ 1427.873425] Call Trace:
  16:50:10 DEBUG| [stdout] [ 1427.902556]  [<ffffffff81285f92>] 
proc_reg_open+0x32/0x110
  16:50:10 DEBUG| [stdout] [ 1427.968086]  [<ffffffff812159c2>] 
do_dentry_open+0x202/0x310
  16:50:10 DEBUG| [stdout] [ 1428.035699]  [<ffffffff81285f60>] ? 
proc_reg_release+0x70/0x70
  16:50:10 DEBUG| [stdout] [ 1428.105391]  [<ffffffff81216b54>] 
vfs_open+0x54/0x80
  16:50:10 DEBUG| [stdout] [ 1428.164686]  [<ffffffff812228ab>] ? 
may_open+0x5b/0xf0
  16:50:10 DEBUG| [stdout] [ 1428.226058]  [<ffffffff81226b6c>] 
path_openat+0x59c/0x1340
  16:50:10 DEBUG| [stdout] [ 1428.291592]  [<ffffffff81852ffd>] ? 
__schedule+0x30d/0x7f0
  16:50:10 DEBUG| [stdout] [ 1428.357122]  [<ffffffff81852ff1>] ? 
__schedule+0x301/0x7f0
  16:50:10 DEBUG| [stdout] [ 1428.422648]  [<ffffffff81228b01>] 
do_filp_open+0x91/0x100
  16:50:10 DEBUG| [stdout]
  16:50:10 DEBUG| [stdout] tlb-shootdown STARTING

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-4.4.0-138-lowlatency 4.4.0-138.164
  ProcVersionSignature: User Name 4.4.0-138.164-lowlatency 4.4.155
  Uname: Linux 4.4.0-138-lowlatency x86_64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Oct  5 07:58 seq
   crw-rw---- 1 root audio 116, 33 Oct  5 07:58 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.1-0ubuntu2.18
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: N/A
  CurrentDmesg:

  Date: Fri Oct  5 07:59:12 2018
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb:
   Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
   Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. PowerEdge R310
  PciMultimedia:

  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-138-lowlatency 
root=UUID=7b91a2b8-2e02-407e-a51d-766f6d969020 ro console=ttyS0,1152008n1
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-138-lowlatency N/A
   linux-backports-modules-4.4.0-138-lowlatency  N/A
   linux-firmware                                1.157.20
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/17/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.8.2
  dmi.board.name: 05XKKK
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A05
  dmi.chassis.type: 23
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.8.2:bd08/17/2011:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
  dmi.product.name: PowerEdge R310
  dmi.sys.vendor: Dell Inc.

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