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 Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1292400 Title: task systemd-udevd:1906 blocked for more than 120 seconds. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1292400/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
