I just saw a similar issue on Trusty after upgrade to kernel 4.10.2: Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.926873] INFO: task systemd-udevd:1371 blocked for more than 120 seconds. Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.926926] Not tainted 4.10.2-041002-generic #201703120131 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.926972] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927021] systemd-udevd D 0 1371 1266 0x00000004 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927025] Call Trace: Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927034] __schedule+0x233/0x6f0 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927039] ? enqueue_entity+0x113/0x640 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927041] schedule+0x36/0x80 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927044] schedule_timeout+0x22a/0x3f0 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927047] wait_for_completion+0xb4/0x140 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927049] ? wake_up_q+0x80/0x80 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927052] cpuhp_issue_call+0x9e/0xd0 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927053] __cpuhp_setup_state+0xe3/0x160 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927060] ? set_floor_freq_default+0x80/0x80 [intel_rapl] Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927061] ? 0xffffffffc079d000 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927064] rapl_init+0x9e/0x1000 [intel_rapl] Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927066] ? 0xffffffffc079d000 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927070] do_one_initcall+0x52/0x1a0 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927074] ? kmem_cache_alloc_trace+0x142/0x190 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927078] do_init_module+0x5f/0x200 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927084] load_module+0x190b/0x1c70 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927086] ? __symbol_put+0x60/0x60 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927089] ? ima_post_read_file+0x7e/0xa0 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927095] ? security_kernel_post_read_file+0x6b/0x80 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927097] SYSC_finit_module+0xdf/0x110 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927100] SyS_finit_module+0xe/0x10 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927104] entry_SYSCALL_64_fastpath+0x1e/0xad Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927105] RIP: 0033:0x7fe62c321709 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927106] RSP: 002b:00007ffd709ec1f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927109] RAX: ffffffffffffffda RBX: 00000000024c8a80 RCX: 00007fe62c321709 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927110] RDX: 0000000000000000 RSI: 00007fe62d294cf0 RDI: 0000000000000005 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927111] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927112] R10: 0000000000000005 R11: 0000000000000246 R12: 00000000024b3950 Mar 14 22:48:21 roc01r-sca025 kernel: [ 244.927113] R13: 00000000024c8a80 R14: 00000000024b43c0 R15: 0000000000020000
-- 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/1292400 Title: task systemd-udevd:1906 blocked for more than 120 seconds. Status in linux package in Ubuntu: Expired Status in linux source package in Trusty: Expired Status in linux source package in Vivid: Expired Bug description: System log shows repeated incidents of "task systemd-udevd:1906 blocked for more than 120 seconds." ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-17-generic 3.13.0-17.37 [modified: boot/vmlinuz-3.13.0-17-generic] ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6 Uname: Linux 3.13.0-17-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CurrentDesktop: XFCE Date: Fri Mar 14 08:54:36 2014 HibernationDevice: RESUME=UUID=0d223c65-8c7e-41b4-95b3-05b22ff4679b InstallationDate: Installed on 2014-03-12 (1 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140312) IwConfig: eth0 no wireless extensions. lo no wireless extensions. Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 MachineType: Microsoft Corporation Virtual Machine ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-17-generic.efi.signed root=UUID=61b52c1b-300d-4c30-8966-db1745f4a4bc ro video:hyperv_fb=1920x1080 quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-17-generic N/A linux-backports-modules-3.13.0-17-generic N/A linux-firmware 1.126 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/26/2012 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: Hyper-V UEFI Release v1.0 dmi.board.asset.tag: None dmi.board.name: Virtual Machine dmi.board.vendor: Microsoft Corporation dmi.board.version: Hyper-V UEFI Release v1.0 dmi.chassis.asset.tag: 6485-6574-9248-6162-4701-6267-50 dmi.chassis.type: 3 dmi.chassis.vendor: Microsoft Corporation dmi.chassis.version: Hyper-V UEFI Release v1.0 dmi.modalias: dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev1.0:bd11/26/2012:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev1.0:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev1.0:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev1.0: dmi.product.name: Virtual Machine dmi.product.version: Hyper-V UEFI Release v1.0 dmi.sys.vendor: Microsoft Corporation --- ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CurrentDesktop: XFCE DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=0d223c65-8c7e-41b4-95b3-05b22ff4679b InstallationDate: Installed on 2014-03-12 (1 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140312) IwConfig: eth0 no wireless extensions. lo no wireless extensions. Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 MachineType: Microsoft Corporation Virtual Machine Package: linux (not installed) ProcFB: 0 EFI VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-17-generic.efi.signed root=UUID=61b52c1b-300d-4c30-8966-db1745f4a4bc ro video:hyperv_fb=1920x1080 quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6 RelatedPackageVersions: linux-restricted-modules-3.13.0-17-generic N/A linux-backports-modules-3.13.0-17-generic N/A linux-firmware 1.126 RfKill: Tags: trusty Uname: Linux 3.13.0-17-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 11/26/2012 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: Hyper-V UEFI Release v1.0 dmi.board.asset.tag: None dmi.board.name: Virtual Machine dmi.board.vendor: Microsoft Corporation dmi.board.version: Hyper-V UEFI Release v1.0 dmi.chassis.asset.tag: 6485-6574-9248-6162-4701-6267-50 dmi.chassis.type: 3 dmi.chassis.vendor: Microsoft Corporation dmi.chassis.version: Hyper-V UEFI Release v1.0 dmi.modalias: dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev1.0:bd11/26/2012:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev1.0:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev1.0:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev1.0: dmi.product.name: Virtual Machine dmi.product.version: Hyper-V UEFI Release v1.0 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1292400/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
