Get 100% reproducible result on 4.4-rc3 on Intel BayTrail platform Any suggestions?
P.S. Something like that was on 4.1-rc7 (same kernel config), though didn't gather the traceback. [ 0.000000] Command line: vmlinuz.efi initrd=initrd console=ttyS0,115200n8 [ 3.680557] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x13381e82524, max_idle_ns: 440795248224 ns [ 23.938953] INFO: rcu_sched self-detected stall on CPU[ 23.939947] INFO: rcu_sched detected stalls on CPUs/ta sks: [ 23.939955] 3-...: (20996 ticks this GP) idle=4e3/140000000000001/0 softirq=203/203 fqs=589 [ 23.939956] (detected by 0, t=21002 jiffies, g=-173, c=-174, q=90) [ 23.939962] Task dump for CPU 3: [ 23.939964] swapper/0 R running task 13280 1 0 0x00000008 [ 23.939975] 0000000000000286 ffff880036e97bd8 ffffffff8130528d 0000000000000001 [ 23.939980] ffff880036c2c810 00000000025000c0 0000000000000202 0000000000000202 [ 23.939984] ffff880036e97c20 ffffffff813053a5 0000241b8115f5db 0000241b811d77ec [ 23.939989] Call Trace: [ 23.940002] [<ffffffff8130528d>] ? ida_pre_get+0x4d/0xe0 [ 23.940006] [<ffffffff813053a5>] ? ida_simple_get+0x85/0xe0 [ 23.940012] [<ffffffff811d8815>] ? kernfs_activate+0x75/0xe0 [ 23.940016] [<ffffffff811d897e>] ? kernfs_add_one+0xfe/0x160 [ 23.940021] [<ffffffff811d9f1a>] ? __kernfs_create_file+0x6a/0x90 [ 23.940025] [<ffffffff811da6c4>] ? sysfs_add_file_mode_ns+0x94/0x180 [ 23.940029] [<ffffffff81306e45>] ? kobject_uevent_env+0x75/0x640 [ 23.940034] [<ffffffff8141cca6>] ? klist_children_get+0x16/0x20 [ 23.940039] [<ffffffff81013760>] ? subcaches_show+0x40/0x40 [ 23.940045] [<ffffffff810be900>] ?smp_call_function_single+0xb0/0x100 [ 23.940049] [<ffffffff810be8f6>] ? smp_call_function_single+0xa6/0x100 [ 23.940053] [<ffffffff81013760>] ? subcaches_show+0x40/0x40 [ 23.940057] [<ffffffff810147ed>] ? init_cache_level+0x1d/0x30 [ 23.940062] [<ffffffff81427119>] ? detect_cache_attributes+0x19/0x1a0 [ 23.940065] [<ffffffff814273f9>] ? cache_add_dev+0x159/0x1f0 [ 23.940071] [<ffffffff81f8cade>] ? container_dev_init+0x2d/0x2d [ 23.940074] [<ffffffff81f8cb1e>] ? cacheinfo_sysfs_init+0x40/0x8a [ 23.940078] [<ffffffff810003d6>] ? do_one_initcall+0xa6/0x1c0 [ 23.940083] [<ffffffff81f4c059>] ? kernel_init_freeable+0x145/0x1d0 [ 23.940087] [<ffffffff81830930>] ? rest_init+0x80/0x80 [ 23.940091] [<ffffffff81830939>] ? kernel_init+0x9/0xe0 [ 23.940095] [<ffffffff8183649f>] ? ret_from_fork+0x3f/0x70 [ 23.940098] [<ffffffff81830930>] ? rest_init+0x80/0x80 [ 23.940103] rcu_sched kthread starved for 19217 jiffies! g18446744073709551443 c18446744073709551442 f0x0 s3 ->state=0x0 [ 24.171981] 3-...: (20996 ticks this GP) idle=4e3/140000000000001/0 softirq=203/203 fqs=589 [ 24.181520] (t=21244 jiffies g=-173 c=-174 q=90) [ 24.186877] rcu_sched kthread starved for 19463 jiffies! g18446744073709551443 c18446744073709551442 f0x2 s3 ->state=0x0 [ 24.199044] Task dump for CPU 3: [ 24.202651] swapper/0 R running task 13280 1 0 0x00000008 [ 24.210544] ffffffff81e3ee80 ffff88003b383dd0 ffffffff8107a616 0000000000000003 [ 24.218829] ffffffff81e3ee80 ffff88003b383de8 ffffffff8107c982 0000000000000004 [ 24.227121] ffff88003b383e18 ffffffff810a3a69 ffff88003b395dc0 ffffffff81e3ee80 [ 24.235414] Call Trace: [ 24.238153] <IRQ> [<ffffffff8107a616>] sched_show_task+0xb6/0x110 [ 24.245171] [<ffffffff8107c982>] dump_cpu_task+0x32/0x40 [ 24.251213] [<ffffffff810a3a69>] rcu_dump_cpu_stacks+0x89/0xe0 [ 24.257837] [<ffffffff810a7379>] rcu_check_callbacks+0x4b9/0x7b0 [ 24.264657] [<ffffffff810b9f40>] ? tick_sched_do_timer+0x30/0x30 [ 24.271481] [<ffffffff810abca4>] update_process_times+0x34/0x60 [ 24.278203] [<ffffffff810b99c1>] tick_sched_handle.isra.14+0x31/0x40 [ 24.285410] [<ffffffff810b9f7b>] tick_sched_timer+0x3b/0x70 [ 24.291744] [<ffffffff810ac49a>] __hrtimer_run_queues+0xda/0x200 [ 24.298563] [<ffffffff810acb43>] hrtimer_interrupt+0xa3/0x190 [ 24.305090] [<ffffffff81013760>] ? subcaches_show+0x40/0x40 [ 24.311424] [<ffffffff810394c3>] local_apic_timer_interrupt+0x33/0x50 [ 24.318728] [<ffffffff81039ec8>] smp_apic_timer_interrupt+0x38/0x50 [ 24.325839] [<ffffffff81836e8f>] apic_timer_interrupt+0x7f/0x90 [ 24.332558] <EOI> [<ffffffff81013760>] ? subcaches_show+0x40/0x40 [ 24.339591] [<ffffffff810be900>] ? smp_call_function_single+0xb0/0x100 [ 24.346993] [<ffffffff810be8f6>] ? smp_call_function_single+0xa6/0x100 [ 24.354396] [<ffffffff81013760>] ? subcaches_show+0x40/0x40 [ 24.360728] [<ffffffff810147ed>] init_cache_level+0x1d/0x30 [ 24.367060] [<ffffffff81427119>] detect_cache_attributes+0x19/0x1a0 [ 24.374170] [<ffffffff814273f9>] ? cache_add_dev+0x159/0x1f0 [ 24.380600] [<ffffffff81f8cade>] ? container_dev_init+0x2d/0x2d [ 24.387321] [<ffffffff81f8cb1e>] cacheinfo_sysfs_init+0x40/0x8a [ 24.394042] [<ffffffff810003d6>] do_one_initcall+0xa6/0x1c0 [ 24.400375] [<ffffffff81f4c059>] kernel_init_freeable+0x145/0x1d0 [ 24.407290] [<ffffffff81830930>] ? rest_init+0x80/0x80 [ 24.413135] [<ffffffff81830939>] kernel_init+0x9/0xe0 [ 24.418884] [<ffffffff8183649f>] ret_from_fork+0x3f/0x70 [ 24.424923] [<ffffffff81830930>] ? rest_init+0x80/0x80 Kernel configuration (diff to x86_64_defconfig) +CONFIG_E1000E=y +CONFIG_R8169=y +CONFIG_USB_RTL8152=y +CONFIG_STMMAC_ETH=y +CONFIG_STMMAC_PCI=y -CONFIG_HPET=y +# CONFIG_HPET is not set -CONFIG_DRM_I915=y +# CONFIG_DRM_I915 is not set +CONFIG_BACKLIGHT_LCD_SUPPORT=y -CONFIG_SND_HDA_INTEL=y -CONFIG_SND_HDA_HWDEP=y +# CONFIG_SND_HDA_INTEL is not set +# CONFIG_SND_HDA_HWDEP is not set +CONFIG_I2C_DESIGNWARE_PCI=y +CONFIG_GPIOLIB=y +CONFIG_GPIO_INTEL_MID=y +CONFIG_INTEL_MID_WATCHDOG=y +CONFIG_NOP_USB_XCEIV=y +CONFIG_USB_CHIPIDEA=y +CONFIG_USB_CHIPIDEA_UDC=y +CONFIG_USB_CHIPIDEA_HOST=y +CONFIG_X86_EXTENDED_PLATFORM=y +CONFIG_X86_INTEL_MID=y +CONFIG_INTEL_IDMA64=y +CONFIG_MFD_CORE=y +CONFIG_MFD_INTEL_LPSS_PCI=y +CONFIG_MFD_INTEL_LPSS_ACPI=y +CONFIG_EFI_STUB=y +CONFIG_EFI_MIXED=y +CONFIG_EARLY_PRINTK_EFI=y +CONFIG_FB=y +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_DYNAMIC_DEBUG=y +CONFIG_USB_XHCI_HCD=y +CONFIG_USB_DWC3=y +CONFIG_USB_DWC3_GADGET=y +CONFIG_USB_SERIAL=y +CONFIG_USB_SERIAL_PL2303=y +CONFIG_USB_USBNET=y +CONFIG_USB_NET_AX88179_178A=y +CONFIG_USB_NET_MCS7830=y +CONFIG_USB_NET_AX8817X=y +CONFIG_PM_RUNTIME=y +CONFIG_SERIAL_8250_DMA=y +CONFIG_SERIAL_8250_PCI=y +CONFIG_SERIAL_8250_MID=y +CONFIG_SERIAL_8250_DW=y -- Andy Shevchenko <[email protected]> Intel Finland Oy --------------------------------------------------------------------- Intel Finland Oy Registered Address: PL 281, 00181 Helsinki Business Identity Code: 0357606 - 4 Domiciled in Helsinki This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. N�����r��y����b�X��ǧv�^�){.n�+����{����zX����ܨ}���Ơz�&j:+v�������zZ+��+zf���h���~����i���z� �w���?�����&�)ߢf��^jǫy�m��@A�a��� 0��h���i
