Public bug reported: This is a POTENTIAL REGRESSION 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] [ 1419.214101] 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. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug package-from-proposed uec-images xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1796250 Title: timer test in ubuntu_stress_smoke_test will cause kernel oops on X-lowlatency To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796250/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs