Hi, With the kernel 3.16.2-1-ARCH i am unable to watch DVB using my TeVii DVB-S2 S650 and VDR. After reboot it works for like a 5 minutes and then i get this Call Trace. I tried to get most information and also did tested with adding the irqpool to kernel boot option (second Call Trace) but it did not help that much. without irqpool: [ 1974.492218] irq 23: nobody cared (try booting with the "irqpoll" option) [ 1974.492234] CPU: 0 PID: 465 Comm: kdvb-ad-0-fe-0 Tainted: P O 3.16.2-1-ARCH #1 [ 1974.492239] Hardware name: Point of View ION-MB330-1/ION-MB330-1, BIOS 080015 07/29/2009 [ 1974.492244] 0000000000000000 0000000017e85ee0 ffff88005fc03d28 ffffffff8152afec [ 1974.492253] ffff88005ca49600 ffff88005fc03d50 ffffffff810d0292 ffff88005ca49600 [ 1974.492260] 0000000000000000 0000000000000017 ffff88005fc03d88 ffffffff810d0647 [ 1974.492268] Call Trace: [ 1974.492273] <IRQ> [<ffffffff8152afec>] dump_stack+0x4d/0x6f [ 1974.492296] [<ffffffff810d0292>] __report_bad_irq+0x32/0xd0 [ 1974.492304] [<ffffffff810d0647>] note_interrupt+0x257/0x2a0 [ 1974.492313] [<ffffffff810cdb9e>] handle_irq_event_percpu+0xae/0x1f0 [ 1974.492320] [<ffffffff810cdd1d>] handle_irq_event+0x3d/0x60 [ 1974.492328] [<ffffffff810d1271>] handle_fasteoi_irq+0x81/0x170 [ 1974.492338] [<ffffffff8101717e>] handle_irq+0x1e/0x40 [ 1974.492345] [<ffffffff8153382d>] do_IRQ+0x4d/0xe0 [ 1974.492354] [<ffffffff815317ed>] common_interrupt+0x6d/0x6d [ 1974.492592] [<ffffffffa089bf40>] ? _nv013453rm+0x30/0x30 [nvidia] [ 1974.492604] [<ffffffff8107365b>] ? __do_softirq+0x8b/0x2e0 [ 1974.492612] [<ffffffff81073a06>] irq_exit+0x86/0xb0 [ 1974.492619] [<ffffffff81533836>] do_IRQ+0x56/0xe0 [ 1974.492627] [<ffffffff815317ed>] common_interrupt+0x6d/0x6d [ 1974.492630] <EOI> [<ffffffffa0355495>] ? dw210x_op_rw+0x115/0x170 [dvb_usb_dw2102] [ 1974.492649] [<ffffffff8101e296>] ? native_read_tsc+0x6/0x20 [ 1974.492658] [<ffffffff812ad703>] delay_tsc+0x43/0xc0 [ 1974.492665] [<ffffffff812ad5ff>] __delay+0xf/0x20 [ 1974.492672] [<ffffffff812ad63e>] __const_udelay+0x2e/0x30 [ 1974.492680] [<ffffffffa03570da>] dw2104_i2c_transfer+0x25a/0x408 [dvb_usb_dw2102] [ 1974.492688] [<ffffffff8101e8d5>] ? native_sched_clock+0x35/0xb0 [ 1974.492697] [<ffffffff810ae74d>] ? enqueue_task_fair+0x10d/0x5b0 [ 1974.492705] [<ffffffff810a6234>] ? sched_clock_cpu+0x54/0xe0 [ 1974.492728] [<ffffffffa0161c7d>] __i2c_transfer+0x6d/0x270 [i2c_core] [ 1974.492740] [<ffffffffa0162836>] i2c_transfer+0x56/0xc0 [i2c_core] [ 1974.492749] [<ffffffffa03850df>] cx24116_readreg+0x8f/0x100 [cx24116] [ 1974.492757] [<ffffffffa0385280>] cx24116_read_status+0x20/0x80 [cx24116] [ 1974.492765] [<ffffffffa0387058>] cx24116_tune+0x38/0xfe0 [cx24116] [ 1974.492777] [<ffffffffa02f98bf>] dvb_frontend_thread+0x4cf/0x750 [dvb_core] [ 1974.492785] [<ffffffff810b6b30>] ? __wake_up_sync+0x20/0x20 [ 1974.492796] [<ffffffffa02f93f0>] ? dvb_frontend_should_wakeup.isra.2+0x80/0x80 [dvb_core] [ 1974.492804] [<ffffffff81091cea>] kthread+0xea/0x100 [ 1974.492813] [<ffffffff811c0000>] ? vfs_truncate+0x130/0x1a0 [ 1974.492821] [<ffffffff81091c00>] ? kthread_create_on_node+0x1b0/0x1b0 [ 1974.492829] [<ffffffff81530cbc>] ret_from_fork+0x7c/0xb0 [ 1974.492836] [<ffffffff81091c00>] ? kthread_create_on_node+0x1b0/0x1b0 [ 1974.492842] handlers: [ 1974.492867] [<ffffffffa002db60>] usb_hcd_irq [usbcore] [ 1974.492872] Disabling IRQ #23 with irqpool in kernel boot option: [ 553.046862] irq 23: nobody cared (try booting with the "irqpoll" option) [ 553.046881] CPU: 0 PID: 547 Comm: receiver on dev Tainted: P O 3.16.2-1-ARCH #1 [ 553.046887] Hardware name: Point of View ION-MB330-1/ION-MB330-1, BIOS 080015 07/29/2009 [ 553.046893] 0000000000000000 000000001aab2dd1 ffff88005fc03e60 ffffffff8152afec [ 553.046902] ffff88005ca49600 ffff88005fc03e88 ffffffff810d0292 ffff88005ca49600 [ 553.046909] 0000000000000000 0000000000000017 ffff88005fc03ec0 ffffffff810d0647 [ 553.046917] Call Trace: [ 553.046923] <IRQ> [<ffffffff8152afec>] dump_stack+0x4d/0x6f [ 553.046951] [<ffffffff810d0292>] __report_bad_irq+0x32/0xd0 [ 553.046960] [<ffffffff810d0647>] note_interrupt+0x257/0x2a0 [ 553.046968] [<ffffffff810cdb9e>] handle_irq_event_percpu+0xae/0x1f0 [ 553.046976] [<ffffffff810cdd1d>] handle_irq_event+0x3d/0x60 [ 553.046984] [<ffffffff810d1271>] handle_fasteoi_irq+0x81/0x170 [ 553.046996] [<ffffffff8101717e>] handle_irq+0x1e/0x40 [ 553.047004] [<ffffffff8153382d>] do_IRQ+0x4d/0xe0 [ 553.047013] [<ffffffff815317ed>] common_interrupt+0x6d/0x6d [ 553.047016] <EOI> [<ffffffff81530d69>] ? system_call_fastpath+0x16/0x1b [ 553.047026] handlers: [ 553.047080] [<ffffffffa002db60>] usb_hcd_irq [usbcore] [ 553.047085] Disabling IRQ #23 $ sudo lspci -v | grep IRQ Flags: 66MHz, fast devsel, IRQ 10 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 40 Flags: bus master, fast devsel, latency 0, IRQ 42 Flags: bus master, fast devsel, latency 0, IRQ 41 $ 00:04.0 USB controller: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller (rev b1) (prog-if 10 [OHCI]) Subsystem: NVIDIA Corporation Apple iMac 9,1 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23 Memory at fae7f000 (32-bit, non-prefetchable) [size=4K] Capabilities: [44] Power Management version 2 Kernel driver in use: ohci-pci Kernel modules: ohci_pci $ lspci|grep USB 00:04.0 USB controller: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller (rev b1) 00:04.1 USB controller: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller (rev b1) 00:06.0 USB controller: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller (rev b1) 00:06.1 USB controller: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller (rev b1) $ 00:04.0 USB controller: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller (rev b1) (prog-if 10 [OHCI]) Subsystem: NVIDIA Corporation Apple iMac 9,1 Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 23 Memory at fae7f000 (32-bit, non-prefetchable) [size=4K] Capabilities: [44] Power Management version 2 Kernel driver in use: ohci-pci Kernel modules: ohci_pci [ 6.080219] dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. [ 6.080504] DVB: registering new adapter (TeVii S650 USB2.0) [ 6.273309] dvb-usb: MAC address: 00:18:bd:5b:ab:4d [ 6.308060] ACPI: PCI Interrupt Link [LAZA] enabled at IRQ 21 [ 6.308093] snd_hda_intel 0000:00:08.0: Disabling MSI [ 6.390816] dw2102: Attached cx24116! [ 6.390838] usb 2-3: DVB: registering adapter 0 frontend 0 (Conexant CX24116/CX24118)... [ 6.670291] Registered IR keymap rc-tevii-nec [ 6.670780] input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:06.1/usb2/2-3/rc/rc1/input9 [ 6.671942] rc1: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:06.1/usb2/2-3/rc/rc1 [ 6.671958] dvb-usb: schedule remote query interval to 150 msecs. [ 6.671975] dvb-usb: TeVii S650 USB2.0 successfully initialized and connected. [ 6.672138] usbcore: registered new interface driver dw2102 [ 7.410907] nvidia: module license 'NVIDIA' taints kernel. [ 7.410926] Disabling lock debugging due to kernel taint [ 7.475519] ACPI: PCI Interrupt Link [LPMU] enabled at IRQ 20 [ 7.476205] ACPI: PCI Interrupt Link [SGRU] enabled at IRQ 23 lsusb: Bus 002 Device 003: ID 9022:d650 TeVii Technology Ltd. DVB-S2 S65 Bus 002 Device 003: ID 9022:d650 TeVii Technology Ltd. DVB-S2 S650 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x9022 TeVii Technology Ltd. idProduct 0xd650 DVB-S2 S650 bcdDevice 0.00 iManufacturer 1 iProduct 2 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 0 $ uname -a Linux vdrvdpau 3.16.2-1-ARCH #1 SMP PREEMPT Sat Sep 6 13:12:51 CEST 2014 x86_64 GNU/Linux $ cat /proc/interrupts |more CPU0 CPU1 CPU2 CPU3 0: 56 0 0 0 IO-APIC-edge timer 1: 3 0 0 0 IO-APIC-edge i8042 7: 1 0 0 0 IO-APIC-edge 8: 1 0 0 0 IO-APIC-edge rtc0 9: 0 0 0 0 IO-APIC-fasteoi acpi 12: 4 0 0 0 IO-APIC-edge i8042 20: 464238 0 0 0 IO-APIC-fasteoi ehci_hcd:usb2 21: 456 0 0 0 IO-APIC-fasteoi ohci_hcd:usb4, snd_hda_intel 22: 2 0 0 0 IO-APIC-fasteoi ehci_hcd:usb1 23: 15703 0 0 0 IO-APIC-fasteoi ohci_hcd:usb3 40: 8049 0 0 0 PCI-MSI-edge ahci 41: 395 0 0 0 PCI-MSI-edge enp4s0 42: 15448 0 0 0 PCI-MSI-edge nvidia NMI: 30 9 17 10 Non-maskable interrupts LOC: 62402 26981 17443 27463 Local timer interrupts SPU: 0 0 0 0 Spurious interrupts PMI: 30 9 17 10 Performance monitoring interrupts IWI: 0 0 1 0 IRQ work interrupts RTR: 0 0 0 0 APIC ICR read retries RES: 960 999 473 512 Rescheduling interrupts CAL: 635 2125 552 2398 Function call interrupts TLB: 428 530 495 475 TLB shootdowns TRM: 0 0 0 0 Thermal event interrupts THR: 0 0 0 0 Threshold APIC interrupts MCE: 0 0 0 0 Machine check exceptions MCP: 2 2 2 2 Machine check polls THR: 0 0 0 0 Hypervisor callback interrupts ERR: 1 MIS: 0 $ journalctl -p 3 Sep 17 10:35:08 vdrvdpau dhcpcd[322]: if_addaddress6: Operation not supported Sep 17 10:35:25 vdrvdpau vdr[507]: [507] ERROR: attempt to open OSD while it is already open - using dummy OSD! Sep 17 10:35:26 vdrvdpau vdr[507]: [507] ERROR: attempt to open OSD while it is already open - using dummy OSD! Sep 17 11:08:05 vdrvdpau kernel: irq 23: nobody cared (try booting with the "irqpoll" option) Sep 17 11:08:06 vdrvdpau kernel: handlers: Sep 17 11:08:06 vdrvdpau kernel: [<ffffffffa002db60>] usb_hcd_irq [usbcore] Sep 17 11:08:06 vdrvdpau kernel: Disabling IRQ #23 Sep 17 14:43:10 vdrvdpau vdr[507]: [1040] ERROR: lircd connection broken, trying to reconnect every 3.0 seconds Sep 17 14:43:10 vdrvdpau vdr[507]: video: fatal i/o error -- Reboot -- Sep 17 14:43:44 vdrvdpau dhcpcd[326]: if_addaddress6: Operation not supported Sep 17 14:43:59 vdrvdpau vdr[401]: [401] ERROR: attempt to open OSD while it is already open - using dummy OSD! Sep 17 14:43:59 vdrvdpau vdr[401]: [401] ERROR: attempt to open OSD while it is already open - using dummy OSD! 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