https://bugzilla.kernel.org/show_bug.cgi?id=196223 --- Comment #22 from Tomi Sarvela (tomi.p.sarvela@xxxxxxxxx) --- It seems that Broxton is hanging to this issue each fast-feedback run, with MCE. Takes 5 minutes to reproduce. I'll try bisecting with this setup. - cmdline: testrunner@bxt-j3405:/opt/igt$ ./scripts/run-tests.sh -vT tests/intel-ci/fast-feedback.testlist - output before hang running: igt/gem_exec_suspend/basic pass: igt/gem_exec_suspend/basic running: igt/gem_exec_suspend/basic-s3 pass: igt/gem_exec_suspend/basic-s3 [108/279] skip: 11, pass: 97 \ Note that basic-s3 passes before host hangs - serial bxt-j3405 login: [ 273.799025] mce: [Hardware Error]: CPU 0: Machine Check: 0 Bank 4: a600000000028 [ 273.799033] mce: [Hardware Error]: TSC 0 ADDR fef13b80 [ 273.799057] mce: [Hardware Error]: PROCESSOR 0:506c9 TIME 1499766163 SOCKET 0 APIC 0 microcode 1c [ 369.635514] INFO: task NetworkManager:582 blocked for more than 60 seconds. [ 369.643203] Tainted: G U 4.12.0-next-20170711-CI-next-20170711 #1 [ 369.652000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 369.662019] Kernel panic - not syncing: hung_task: blocked tasks [ 369.668287] CPU: 0 PID: 36 Comm: khungtaskd Tainted: G U 4.12.0-next-20170711-CI-ne1 [ 369.678913] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J3455-ITX, BIOS P1.10 06 [ 369.689036] Call Trace: [ 369.691613] dump_stack+0x67/0x97 [ 369.695146] panic+0xcf/0x212 [ 369.698314] watchdog+0x469/0x620 [ 369.701849] kthread+0x10f/0x150 [ 369.705267] ? reset_hung_task_detector+0x10/0x10 [ 369.710259] ? kthread_create_on_node+0x40/0x40 [ 369.715079] ret_from_fork+0x27/0x40 [ 369.718888] Kernel Offset: disabled [ 369.722627] Rebooting in 1 seconds.. [ 370.726512] ACPI MEMORY or I/O RESET_REG. - dmesg [ 276.985613] r8169 0000:01:00.0 enp1s0: link up [ 333.940312] usb 1-6: USB disconnect, device number 7 [ 335.471502] usb 1-6: new low-speed USB device number 8 using xhci_hcd [ 335.644636] usb 1-6: New USB device found, idVendor=046d, idProduct=c077 [ 335.644652] usb 1-6: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 335.644665] usb 1-6: Product: USB Optical Mouse [ 335.644676] usb 1-6: Manufacturer: Logitech [ 335.655340] input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:15.0/usb1/1-6/1-6:1.0/0003:046D:C077.0008/input/input21 [ 335.708842] hid-generic 0003:046D:C077.0008: input,hidraw2: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:15.0-6/input0 [ 369.635514] INFO: task NetworkManager:582 blocked for more than 60 seconds. [ 369.643203] Tainted: G U 4.12.0-next-20170711-CI-next-20170711 #1 [ 369.652000] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 369.660444] NetworkManager D 0 582 1 0x00000000 [ 369.660454] Call Trace: [ 369.660470] __schedule+0x405/0xb40 [ 369.660479] ? bit_wait+0x50/0x50 [ 369.660484] schedule+0x3b/0x90 [ 369.660491] io_schedule+0x11/0x40 [ 369.660496] bit_wait_io+0xc/0x50 [ 369.660501] __wait_on_bit+0x5c/0x90 [ 369.660508] out_of_line_wait_on_bit+0x7c/0x80 [ 369.660515] ? bit_waitqueue+0x30/0x30 [ 369.660522] __wait_on_buffer+0x3b/0x40 [ 369.660530] ext4_find_entry+0x3f8/0x5b0 [ 369.660543] ? d_alloc+0x84/0xc0 [ 369.660553] ext4_lookup+0x46/0x1c0 [ 369.660560] __lookup_hash+0x53/0x80 [ 369.660566] do_unlinkat+0x12c/0x2a0 [ 369.660575] SyS_unlink+0x11/0x20 [ 369.660580] entry_SYSCALL_64_fastpath+0x1c/0xb1 [ 369.660585] RIP: 0033:0x7f2e06056a57 [ 369.660590] RSP: 002b:00007fff23acbac8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 [ 369.660600] RAX: ffffffffffffffda RBX: ffffffff8146e023 RCX: 00007f2e06056a57 [ 369.660605] RDX: 0000000002260d90 RSI: 00007f2e06322b28 RDI: 0000000002237be0 [ 369.660610] RBP: ffffc9000067bf88 R08: 0000000002260df0 R09: 0000000000000100 [ 369.660614] R10: 00000000000004c9 R11: 0000000000000206 R12: 0000000002221980 [ 369.660618] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000002237be0 [ 369.660626] ? __this_cpu_preempt_check+0x13/0x20 [ 369.660635] Showing all locks held in the system: [ 369.660650] 2 locks held by khungtaskd/36: [ 369.660668] #0: (rcu_read_lock){......}, at: [<ffffffff81138c2c>] watchdog+0x9c/0x620 [ 369.660690] #1: (tasklist_lock){.+.+..}, at: [<ffffffff810d76ad>] debug_show_all_locks+0x3d/0x1a0 [ 369.660720] 2 locks held by NetworkManager/582: [ 369.660724] #0: (sb_writers#3){.+.+.+}, at: [<ffffffff8122d39f>] mnt_want_write+0x1f/0x50 [ 369.660747] #1: (&type->i_mutex_dir_key/1){+.+.+.}, at: [<ffffffff8121865c>] do_unlinkat+0x11c/0x2a0 [ 369.660770] 1 lock held by in:imklog/612: [ 369.660774] #0: (&f->f_pos_lock){+.+.+.}, at: [<ffffffff8122a59e>] __fdget_pos+0x3e/0x50 [ 369.660794] 1 lock held by rs:main Q:Reg/613: [ 369.660797] #0: (&type->i_mutex_dir_key){++++++}, at: [<ffffffff81212ca2>] lookup_slow+0xb2/0x1e0 [ 369.660822] 1 lock held by dmesg/1402: [ 369.660826] #0: (&user->lock){+.+...}, at: [<ffffffff810ecc88>] devkmsg_read+0x38/0x2d0 [ 369.660852] 2 locks held by kworker/u8:29/2982: [ 369.660856] #0: ("events_unbound"){.+.+.+}, at: [<ffffffff8109c208>] process_one_work+0x178/0x670 [ 369.660876] #1: ((&entry->work)){+.+.+.}, at: [<ffffffff8109c208>] process_one_work+0x178/0x670 [ 369.660903] ============================================= [ 369.660908] NMI backtrace for cpu 0 [ 369.660914] CPU: 0 PID: 36 Comm: khungtaskd Tainted: G U 4.12.0-next-20170711-CI-next-20170711 #1 [ 369.660917] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J3455-ITX, BIOS P1.10 09/29/2016 [ 369.660921] Call Trace: [ 369.660927] dump_stack+0x67/0x97 [ 369.660933] nmi_cpu_backtrace+0xbf/0xd0 [ 369.660939] ? irq_force_complete_move+0xf0/0xf0 [ 369.660945] nmi_trigger_cpumask_backtrace+0xc0/0x100 [ 369.660951] arch_trigger_cpumask_backtrace+0x14/0x20 [ 369.660955] watchdog+0x45d/0x620 [ 369.660962] kthread+0x10f/0x150 [ 369.660966] ? reset_hung_task_detector+0x10/0x10 [ 369.660972] ? kthread_create_on_node+0x40/0x40 [ 369.660977] ret_from_fork+0x27/0x40 [ 369.660989] Sending NMI from CPU 0 to CPUs 1-3: [ 369.661001] NMI backtrace for cpu 1 [ 369.661004] CPU: 1 PID: 195 Comm: systemd-journal Tainted: G U 4.12.0-next-20170711-CI-next-20170711 #1 [ 369.661004] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./J3455-ITX, BIOS P1.10 09/29/2016 [ 369.661005] task: ffff8802743b8040 task.stack: ffffc90000224000 [ 369.661007] RIP: 0033:0x7ffca352ba3d [ 369.661008] RSP: 002b:00007ffca349de10 EFLAGS: 00000202 [ 369.661010] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007ffca352ba3d [ 369.661010] RDX: 0000000000000000 RSI: 00007ffca349de40 RDI: 0000000000000007 [ 369.661011] RBP: 00007ffca349de10 R08: 0000000015fe7e40 R09: 0000000000000001 [ 369.661012] R10: 0027183014d2c5aa R11: 0000000000000202 R12: 00007ffca349de70 [ 369.661013] R13: 0000000000000001 R14: 00007ffca349e0f0 R15: 0000000000000001 [ 369.661014] FS: 00007fb99d7d1840(0000) GS:ffff88027fc80000(0000) knlGS:0000000000000000 [ 369.661015] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 369.661016] CR2: 00007fb99b6ee010 CR3: 0000000272577000 CR4: 00000000003406e0 [ 369.661020] NMI backtrace for cpu 3 skipped: idling at pc 0xffffffff8188d448 [ 369.661023] NMI backtrace for cpu 2 skipped: idling at pc 0xffffffff8188d448 [ 369.662019] Kernel panic - not syncing: hung_task: blocked tasks -- You are receiving this mail because: You are watching the assignee of the bug.
