Upgraded to 10.0, lots of problems capturing but 9.x works

I am using a 4K Extreme card on Arch Linux x64 with the new 10.0 drivers. I am unable to capture at all with kernel 3.12.13-rt21, trying to start a capture just produces this:

Mar 16 09:35:17 localhost kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000018
Mar 16 09:35:17 localhost kernel: IP: [<ffffffff814fe1a0>] rt_spin_lock+0x10/0x30
Mar 16 09:35:17 localhost kernel: PGD 0
Mar 16 09:35:17 localhost kernel: Oops: 0002 [#1] PREEMPT SMP
Mar 16 09:35:17 localhost kernel: Modules linked in: snd_blackmagic_io(PO) snd_hda_codec_realtek snd_hda_codec_hdmi joydev hid_generic evdev iTCO_wdt iTCO_vendor_support x86_pkg_temp_thermal coretemp kvm_intel kvm crct10dif_pclmul crct10d
Mar 16 09:35:17 localhost kernel: CPU: 1 PID: 1057 Comm: blackmagic Tainted: P O 3.12.13-rt21-1-rt #1
Mar 16 09:35:17 localhost kernel: Hardware name: / , BIOS 4.6.5 07/26/2013
Mar 16 09:35:17 localhost kernel: task: ffff88020b358000 ti: ffff8800d71d8000 task.ti: ffff8800d71d8000
Mar 16 09:35:17 localhost kernel: RIP: 0010:[<ffffffff814fe1a0>] [<ffffffff814fe1a0>] rt_spin_lock+0x10/0x30
Mar 16 09:35:17 localhost kernel: RSP: 0018:ffff8800d71d9d70 EFLAGS: 00010246
Mar 16 09:35:17 localhost kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
Mar 16 09:35:17 localhost kernel: RDX: ffff88020b358000 RSI: ffff88020b358000 RDI: 0000000000000000
Mar 16 09:35:17 localhost kernel: RBP: ffff8800d71d9d80 R08: ffff8800d71d9fd8 R09: ffff880216001b00
Mar 16 09:35:17 localhost kernel: R10: ffff8800d71d9fd8 R11: 0000000000068160 R12: 0000000000000002
Mar 16 09:35:17 localhost kernel: R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Mar 16 09:35:17 localhost kernel: FS: 0000000000000000(0000) GS:ffff88021ea80000(0000) knlGS:0000000000000000
Mar 16 09:35:17 localhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Mar 16 09:35:17 localhost kernel: CR2: 0000000000000018 CR3: 0000000001a10000 CR4: 00000000001407e0
Mar 16 09:35:17 localhost kernel: Stack:
Mar 16 09:35:17 localhost kernel: ffffffffa077ca41 ffff8800371ad840 ffff88020b37f390 ffffffffa0756135
Mar 16 09:35:17 localhost kernel: 0000000000000000 ffff8800d71d9db0 0000000000000000 ffff88020b37f380
Mar 16 09:35:17 localhost kernel: ffff8800d71d9de8 0000000000000000 0000000000000000 0000000000000000
Mar 16 09:35:17 localhost kernel: Call Trace:
Mar 16 09:35:17 localhost kernel: [<ffffffffa077ca41>] ? bm_spin_lock_irqsave+0x21/0x30 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa0756135>] bmio_notify_add+0x75/0xd0 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa077ba76>] ? bmio_client_notify+0x16/0x40 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa075d9f4>] ? _ZN20UserClientClassLinux19notifyClientOfEventEjjjjj+0x64/0xa0 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa075a350>] ? _ZNK10IOWorkLoop12getMetaClassEv+0x10/0x10 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa0774634>] ? _ZN19VideoInputInterface21videoFrameDMACallbackEP8OSObjectP10DMAElementj+0x1b4/0x1c0 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa07689d4>] ? _ZN9DMAEngine24handleSecondaryInterruptEv+0x54/0x60 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa0763514>] ? _ZN18BlackmagicIODriver24handleSecondaryInterruptEP8OSObjectP22IOInterruptEventSourcei+0x74/0x250 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa075796d>] ? _ZN22IOInterruptEventSource12checkForWorkEv+0x2d/0x50 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa075a3ec>] ? _ZN10IOWorkLoop15runEventSourcesEv+0x5c/0xa0 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa075a602>] ? _ZN10IOWorkLoop10threadMainEv+0x12/0x40 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffffa075a35d>] ? _ZN10IOWorkLoop22threadMainContinuationEPS_+0xd/0x20 [blackmagic_io]
Mar 16 09:35:17 localhost kernel: [<ffffffff81087092>] ? kthread+0xb2/0xc0
Mar 16 09:35:17 localhost kernel: [<ffffffff81086fe0>] ? kthread_worker_fn+0x1a0/0x1a0
Mar 16 09:35:17 localhost kernel: [<ffffffff8150657c>] ? ret_from_fork+0x7c/0xb0
Mar 16 09:35:17 localhost kernel: [<ffffffff81086fe0>] ? kthread_worker_fn+0x1a0/0x1a0
Mar 16 09:35:17 localhost kernel: Code: 89 d8 5b 5d c3 66 0f 1f 44 00 00 e8 ab 77 b9 ff 89 d8 5b 5d c3 66 0f 1f 44 00 00 0f 1f 44 00 00 65 48 8b 14 25 00 c8 00 00 31 c0 <f0> 48 0f b1 57 18 48 85 c0 75 01 c3 55 48 89 e5 e8 80 ee ff ff
Mar 16 09:35:17 localhost kernel: RIP [<ffffffff814fe1a0>] rt_spin_lock+0x10/0x30
Mar 16 09:35:17 localhost kernel: RSP <ffff8800d71d9d70>
Mar 16 09:35:17 localhost kernel: CR2: 0000000000000018
Mar 16 09:35:17 localhost kernel: ---[ end trace 0000000000000002 ]---

And the application freezes until the computer is rebooted.

I tried a non-RT kernel version 3.13.6 and it is semi-working with that version. I can start captures but I cannot get full frame rate (around 27fps on a 30fps source) and it still produces a kernel BUG (and some blackmagic module warnings):

Mar 16 10:11:04 localhost kernel: BlackmagicIO: Driver version 10.0a7 loading
Mar 16 10:11:04 localhost kernel: blackmagic-io 0000:01:00.0: irq 49 for MSI/MSI-X
Mar 16 10:11:04 localhost kernel: BlackmagicIO: Started device "DeckLink 4K Extreme" (de355b1) FW Date: 02-11 08:54
Mar 16 10:11:04 localhost kernel: BlackmagicIO: DeckLink 4K Extreme as blackmagic!io0 [0000:01:00.0]
Mar 16 10:11:04 localhost kernel: BUG: scheduling while atomic: systemd-udevd/180/0x00000002
Mar 16 10:11:04 localhost kernel: Modules linked in: blackmagic_io(PO+) intel_agp intel_gtt snd_hda_intel(+) fan snd_hda_codec thermal e1000e(+) snd_hwdep drm_kms_helper mei_me snd_pcm drm snd_page_alloc i2c_algo_bit snd_timer i2c_core snd ptp shpchp soundcore mei i8042 serio pps_core lpc_ich video button blackmagic(PO) ext4 crc16 mbcache jbd2 sd_mod ahci libahci libata crc32c_intel ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore usb_common
Mar 16 10:11:04 localhost kernel: CPU: 0 PID: 180 Comm: systemd-udevd Tainted: P O 3.13.6-1-ARCH #1
Mar 16 10:11:04 localhost kernel: Hardware name: / , BIOS 4.6.5 07/26/2013
Mar 16 10:11:04 localhost kernel: ffff88021ea14440 ffff880211f2f748 ffffffff81513274 7fffffffffffffff
Mar 16 10:11:04 localhost kernel: ffff880211f2f758 ffffffff815101fe ffff880211f2f860 ffffffff81515c6b
Mar 16 10:11:04 localhost kernel: ffff880212d5ec00 ffff880211f2ffd8 0000000000014440 0000000000014440
Mar 16 10:11:04 localhost kernel: Call Trace:
Mar 16 10:11:04 localhost kernel: [<ffffffff81513274>] dump_stack+0x4d/0x6f
Mar 16 10:11:04 localhost kernel: [<ffffffff815101fe>] __schedule_bug+0x4c/0x5a
Mar 16 10:11:04 localhost kernel: [<ffffffff81515c6b>] __schedule+0x7fb/0x900
Mar 16 10:11:04 localhost kernel: [<ffffffff812b55df>] ? idr_get_empty_slot+0x16f/0x3c0
Mar 16 10:11:04 localhost kernel: [<ffffffff812b55df>] ? idr_get_empty_slot+0x16f/0x3c0
Mar 16 10:11:04 localhost kernel: [<ffffffff810925fa>] ? try_to_wake_up+0x1fa/0x2c0
Mar 16 10:11:04 localhost kernel: [<ffffffff81515d99>] schedule+0x29/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff81514f09>] schedule_timeout+0x1e9/0x270
Mar 16 10:11:04 localhost kernel: [<ffffffff8109cf67>] ? enqueue_task_fair+0x107/0x540
Mar 16 10:11:04 localhost kernel: [<ffffffff810902e5>] ? check_preempt_curr+0x75/0xa0
Mar 16 10:11:04 localhost kernel: [<ffffffff81516743>] wait_for_common+0xd3/0x180
Mar 16 10:11:04 localhost kernel: [<ffffffff81092700>] ? wake_up_process+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff8151680d>] wait_for_completion+0x1d/0x20
Mar 16 10:11:04 localhost kernel: [<ffffffff813b5ef7>] devtmpfs_create_node+0xf7/0x130
Mar 16 10:11:04 localhost kernel: [<ffffffff813adece>] device_add+0x28e/0x650
Mar 16 10:11:04 localhost kernel: [<ffffffff813ae2aa>] device_register+0x1a/0x20
Mar 16 10:11:04 localhost kernel: [<ffffffff8137393b>] tty_register_device_attr+0xfb/0x250
Mar 16 10:11:04 localhost kernel: [<ffffffff81373aa3>] tty_register_device+0x13/0x20
Mar 16 10:11:04 localhost kernel: [<ffffffffa06215a5>] bmio_serial_probe+0xb5/0x110 [blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0620e66>] bmio_subdriver_probe+0x36/0x80 [blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0620c47>] bmio_probe+0x97/0xa0 [blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffff812eb035>] local_pci_probe+0x45/0xa0
Mar 16 10:11:04 localhost kernel: [<ffffffff812ea7b5>] ? pci_match_device+0xc5/0xd0
Mar 16 10:11:04 localhost kernel: [<ffffffff812eb169>] pci_device_probe+0xd9/0x130
Mar 16 10:11:04 localhost kernel: [<ffffffff813b0f87>] driver_probe_device+0x87/0x3a0
Mar 16 10:11:04 localhost kernel: [<ffffffff813b1373>] __driver_attach+0x93/0xa0
Mar 16 10:11:04 localhost kernel: [<ffffffff813b12e0>] ? __device_attach+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff813aef93>] bus_for_each_dev+0x63/0xa0
Mar 16 10:11:04 localhost kernel: [<ffffffff813b09de>] driver_attach+0x1e/0x20
Mar 16 10:11:04 localhost kernel: [<ffffffff813b05c0>] bus_add_driver+0x180/0x250
Mar 16 10:11:04 localhost kernel: [<ffffffffa0654000>] ? 0xffffffffa0653fff
Mar 16 10:11:04 localhost kernel: [<ffffffff813b19f4>] driver_register+0x64/0xf0
Mar 16 10:11:04 localhost kernel: [<ffffffffa0654000>] ? 0xffffffffa0653fff
Mar 16 10:11:04 localhost kernel: [<ffffffff812ea91b>] __pci_register_driver+0x4b/0x50
Mar 16 10:11:04 localhost kernel: [<ffffffffa065403f>] bmio_init+0x3f/0x55 [blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0654000>] ? 0xffffffffa0653fff
Mar 16 10:11:04 localhost kernel: [<ffffffff8100214a>] do_one_initcall+0xfa/0x1b0
Mar 16 10:11:04 localhost kernel: [<ffffffff81087d78>] ? __blocking_notifier_call_chain+0x58/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff810d892b>] load_module+0x1e2b/0x2570
Mar 16 10:11:04 localhost kernel: [<ffffffff810d5160>] ? store_uevent+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff810d91e6>] SyS_finit_module+0x86/0xb0
Mar 16 10:11:04 localhost kernel: [<ffffffff815216ad>] system_call_fastpath+0x1a/0x1f
Mar 16 10:11:04 localhost kernel: dca service started, version 1.12.1
Mar 16 10:11:04 localhost kernel: igb: Intel(R) Gigabit Ethernet Network Driver - version 5.0.5-k
Mar 16 10:11:04 localhost kernel: igb: Copyright (c) 2007-2013 Intel Corporation.
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: irq 50 for MSI/MSI-X
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: irq 51 for MSI/MSI-X
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: irq 52 for MSI/MSI-X
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: irq 53 for MSI/MSI-X
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: irq 54 for MSI/MSI-X
Mar 16 10:11:04 localhost kernel: usb 3-1: new high-speed USB device number 2 using ehci-pci
Mar 16 10:11:04 localhost kernel: input: PC Speaker as /devices/platform/pcspkr/input/input2
Mar 16 10:11:04 localhost kernel: hidraw: raw HID events driver (C) Jiri Kosina
Mar 16 10:11:04 localhost kernel: microcode: CPU0 sig=0x306c3, pf=0x2, revision=0x10
Mar 16 10:11:04 localhost kernel: platform microcode: Direct firmware load failed with error -2
Mar 16 10:11:04 localhost kernel: platform microcode: Falling back to user helper
Mar 16 10:11:04 localhost kernel: usbcore: registered new interface driver usbhid
Mar 16 10:11:04 localhost kernel: usbhid: USB HID core driver
Mar 16 10:11:04 localhost kernel: iTCO_vendor_support: vendor-support=0
Mar 16 10:11:04 localhost kernel: iTCO_wdt: Intel TCO WatchDog Timer Driver v1.10
Mar 16 10:11:04 localhost kernel: iTCO_wdt: Found a Lynx Point TCO device (Version=2, TCOBASE=0x1860)
Mar 16 10:11:04 localhost kernel: iTCO_wdt: initialized. heartbeat=30 sec (nowayout=0)
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: added PHC on eth0
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: Intel(R) Gigabit Ethernet Network Connection
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: eth0: (PCIe:2.5Gb/s:Width x1) 00:30:18:b0:6b:6f
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: eth0: PBA No: FFFFFF-0FF
Mar 16 10:11:04 localhost kernel: igb 0000:03:00.0: Using MSI-X interrupts. 2 rx queue(s), 2 tx queue(s)
Mar 16 10:11:04 localhost kernel: microcode: CPU1 sig=0x306c3, pf=0x2, revision=0x10
Mar 16 10:11:04 localhost kernel: platform microcode: Direct firmware load failed with error -2
Mar 16 10:11:04 localhost kernel: platform microcode: Falling back to user helper
Mar 16 10:11:04 localhost kernel: input: Chicony HP Elite USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.0/input/input4
Mar 16 10:11:04 localhost kernel: hid-generic 0003:03F0:034A.0001: input,hidraw0: USB HID v1.10 Keyboard [Chicony HP Elite USB Keyboard] on usb-0000:00:14.0-5/input0
Mar 16 10:11:04 localhost kernel: input: Chicony HP Elite USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-5/1-5:1.1/input/input5
Mar 16 10:11:04 localhost kernel: hid-generic 0003:03F0:034A.0002: input,hidraw1: USB HID v1.10 Device [Chicony HP Elite USB Keyboard] on usb-0000:00:14.0-5/input1
Mar 16 10:11:04 localhost kernel: input: Logitech USB Optical Mouse as /devices/pci0000:00/0000:00:14.0/usb1/1-6/1-6:1.0/input/input6
Mar 16 10:11:04 localhost kernel: hid-generic 0003:046D:C05A.0003: input,hidraw2: USB HID v1.11 Mouse [Logitech USB Optical Mouse] on usb-0000:00:14.0-6/input0
Mar 16 10:11:04 localhost kernel: microcode: CPU2 sig=0x306c3, pf=0x2, revision=0x10
Mar 16 10:11:04 localhost kernel: platform microcode: Direct firmware load failed with error -2
Mar 16 10:11:04 localhost kernel: platform microcode: Falling back to user helper
Mar 16 10:11:04 localhost kernel: microcode: CPU3 sig=0x306c3, pf=0x2, revision=0x10
Mar 16 10:11:04 localhost kernel: platform microcode: Direct firmware load failed with error -2
Mar 16 10:11:04 localhost kernel: platform microcode: Falling back to user helper
Mar 16 10:11:04 localhost kernel: microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba
Mar 16 10:11:04 localhost kernel: mousedev: PS/2 mouse device common for all mice
Mar 16 10:11:04 localhost kernel: tsc: Refined TSC clocksource calibration: 2993.069 MHz
Mar 16 10:11:04 localhost kernel: e1000e 0000:00:19.0 eth0: registered PHC clock
Mar 16 10:11:04 localhost kernel: e1000e 0000:00:19.0 eth0: (PCI Express:2.5GT/s:Width x1) 00:30:18:b0:6b:6e
Mar 16 10:11:04 localhost kernel: e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection
Mar 16 10:11:04 localhost kernel: e1000e 0000:00:19.0 eth0: MAC: 11, PHY: 12, PBA No: FFFFFF-0FF
Mar 16 10:11:04 localhost kernel: snd_hda_intel 0000:00:1b.0: irq 55 for MSI/MSI-X
Mar 16 10:11:04 localhost systemd-udevd[180]: renamed network interface eth0 to enp3s0
Mar 16 10:11:04 localhost systemd-udevd[176]: renamed network interface eth0 to eno1
Mar 16 10:11:04 localhost kernel: input: HDA Intel PCH Line Out as /devices/pci0000:00/0000:00:1b.0/sound/card1/input11
Mar 16 10:11:04 localhost kernel: input: HDA Intel PCH Line as /devices/pci0000:00/0000:00:1b.0/sound/card1/input10
Mar 16 10:11:04 localhost kernel: input: HDA Intel PCH Rear Mic as /devices/pci0000:00/0000:00:1b.0/sound/card1/input9
Mar 16 10:11:04 localhost kernel: [drm] Memory usable by graphics device = 2048M
Mar 16 10:11:04 localhost kernel: i915 0000:00:02.0: irq 56 for MSI/MSI-X
Mar 16 10:11:04 localhost kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
Mar 16 10:11:04 localhost kernel: [drm] Driver supports precise vblank timestamp query.
Mar 16 10:11:04 localhost kernel: vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=io+mem:owns=io+mem
Mar 16 10:11:04 localhost kernel: BUG: scheduling while atomic: modprobe/1253/0x00000003
Mar 16 10:11:04 localhost kernel: Modules linked in: snd_blackmagic_io(PO+) snd_hda_codec_realtek x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crct10dif_common crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd mousedev joydev hid_generic psmouse serio_raw atkbd iTCO_wdt libps2 iTCO_vendor_support evdev microcode usbhid hid pcspkr i2c_i801(+) i915(+) igb dca blackmagic_io(PO) intel_agp intel_gtt snd_hda_intel fan snd_hda_codec thermal e1000e snd_hwdep drm_kms_helper mei_me snd_pcm drm snd_page_alloc i2c_algo_bit snd_timer i2c_core snd ptp shpchp soundcore mei i8042 serio pps_core lpc_ich video button blackmagic(PO) ext4 crc16 mbcache jbd2 sd_mod ahci libahci libata crc32c_intel ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore usb_common
Mar 16 10:11:04 localhost kernel: CPU: 1 PID: 1253 Comm: modprobe Tainted: P W O 3.13.6-1-ARCH #1
Mar 16 10:11:04 localhost kernel: Hardware name: / , BIOS 4.6.5 07/26/2013
Mar 16 10:11:04 localhost kernel: ffff88021ea94440 ffff88020f8179e8 ffffffff81513274 7fffffffffffffff
Mar 16 10:11:04 localhost kernel: ffff88020f8179f8 ffffffff815101fe ffff88020f817b00 ffffffff81515c6b
Mar 16 10:11:04 localhost kernel: ffff88020f859b00 ffff88020f817fd8 0000000000014440 0000000000014440
Mar 16 10:11:04 localhost kernel: Call Trace:
Mar 16 10:11:04 localhost kernel: [<ffffffff81513274>] dump_stack+0x4d/0x6f
Mar 16 10:11:04 localhost kernel: [<ffffffff815101fe>] __schedule_bug+0x4c/0x5a
Mar 16 10:11:04 localhost kernel: [<ffffffff81515c6b>] __schedule+0x7fb/0x900
Mar 16 10:11:04 localhost kernel: [<ffffffff8113efdf>] ? __alloc_pages_nodemask+0x14f/0xaa0
Mar 16 10:11:04 localhost kernel: [<ffffffff812b4ed2>] ? get_from_free_list+0x42/0x50
Mar 16 10:11:04 localhost kernel: [<ffffffff81515d99>] schedule+0x29/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff81514f09>] schedule_timeout+0x1e9/0x270
Mar 16 10:11:04 localhost kernel: [<ffffffff8109cf67>] ? enqueue_task_fair+0x107/0x540
Mar 16 10:11:04 localhost kernel: [<ffffffff810902e5>] ? check_preempt_curr+0x75/0xa0
Mar 16 10:11:04 localhost kernel: [<ffffffff81516743>] wait_for_common+0xd3/0x180
Mar 16 10:11:04 localhost kernel: [<ffffffff81092700>] ? wake_up_process+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffffa0031270>] ? bmio_audio_interrupt+0x30/0x30 [snd_blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffff815168ad>] wait_for_completion_killable+0x1d/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff8108342f>] kthread_create_on_node+0xcf/0x180
Mar 16 10:11:04 localhost kernel: [<ffffffffa03d7490>] ? snd_info_register+0xb0/0x110 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa04b0202>] ? snd_pcm_common_ioctl1+0xc52/0xca0 [snd_pcm]
Mar 16 10:11:04 localhost kernel: [<ffffffffa04b63f0>] ? snd_pcm_lib_preallocate_pages_for_all+0x70/0xb0 [snd_pcm]
Mar 16 10:11:04 localhost kernel: [<ffffffffa00319ff>] bmio_audio_probe+0x21f/0x2ba [snd_blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0620dc4>] bmio_driver_register_subdriver+0x94/0xd0 [blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0034000>] ? 0xffffffffa0033fff
Mar 16 10:11:04 localhost kernel: [<ffffffffa0034010>] bmio_init+0x10/0x12 [snd_blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffff8100214a>] do_one_initcall+0xfa/0x1b0
Mar 16 10:11:04 localhost kernel: [<ffffffff81087d78>] ? __blocking_notifier_call_chain+0x58/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff810d892b>] load_module+0x1e2b/0x2570
Mar 16 10:11:04 localhost kernel: [<ffffffff810d5160>] ? store_uevent+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff810d91e6>] SyS_finit_module+0x86/0xb0
Mar 16 10:11:04 localhost kernel: [<ffffffff815216ad>] system_call_fastpath+0x1a/0x1f
Mar 16 10:11:04 localhost kernel: BUG: scheduling while atomic: modprobe/1253/0x00000003
Mar 16 10:11:04 localhost kernel: Modules linked in: snd_blackmagic_io(PO+) snd_hda_codec_realtek x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crct10dif_common crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd mousedev joydev hid_generic psmouse serio_raw atkbd iTCO_wdt libps2 iTCO_vendor_support evdev microcode usbhid hid pcspkr i2c_i801(+) i915(+) igb dca blackmagic_io(PO) intel_agp intel_gtt snd_hda_intel fan snd_hda_codec thermal e1000e snd_hwdep drm_kms_helper mei_me snd_pcm drm snd_page_alloc i2c_algo_bit snd_timer i2c_core snd ptp shpchp soundcore mei i8042 serio pps_core lpc_ich video button blackmagic(PO) ext4 crc16 mbcache jbd2 sd_mod ahci libahci libata crc32c_intel ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore usb_common
Mar 16 10:11:04 localhost kernel: CPU: 1 PID: 1253 Comm: modprobe Tainted: P W O 3.13.6-1-ARCH #1
Mar 16 10:11:04 localhost kernel: Hardware name: / , BIOS 4.6.5 07/26/2013
Mar 16 10:11:04 localhost kernel: ffff88021ea94440 ffff88020f817818 ffffffff81513274 7fffffffffffffff
Mar 16 10:11:04 localhost kernel: ffff88020f817828 ffffffff815101fe ffff88020f817930 ffffffff81515c6b
Mar 16 10:11:04 localhost kernel: ffff88020f859b00 ffff88020f817fd8 0000000000014440 0000000000014440
Mar 16 10:11:04 localhost kernel: Call Trace:
Mar 16 10:11:04 localhost kernel: [<ffffffff81513274>] dump_stack+0x4d/0x6f
Mar 16 10:11:04 localhost kernel: [<ffffffff815101fe>] __schedule_bug+0x4c/0x5a
Mar 16 10:11:04 localhost kernel: [<ffffffff81515c6b>] __schedule+0x7fb/0x900
Mar 16 10:11:04 localhost kernel: [<ffffffff810902e5>] ? check_preempt_curr+0x75/0xa0
Mar 16 10:11:04 localhost kernel: [<ffffffff812b55df>] ? idr_get_empty_slot+0x16f/0x3c0
Mar 16 10:11:04 localhost kernel: [<ffffffff812bdd8b>] ? string.isra.5+0x3b/0xf0
Mar 16 10:11:04 localhost kernel: [<ffffffff81515d99>] schedule+0x29/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff81514f09>] schedule_timeout+0x1e9/0x270
Mar 16 10:11:04 localhost kernel: [<ffffffff8109cf67>] ? enqueue_task_fair+0x107/0x540
Mar 16 10:11:04 localhost kernel: [<ffffffff810902e5>] ? check_preempt_curr+0x75/0xa0
Mar 16 10:11:04 localhost kernel: [<ffffffff81516743>] wait_for_common+0xd3/0x180
Mar 16 10:11:04 localhost kernel: [<ffffffff81092700>] ? wake_up_process+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff8151680d>] wait_for_completion+0x1d/0x20
Mar 16 10:11:04 localhost kernel: [<ffffffff813b5ef7>] devtmpfs_create_node+0xf7/0x130
Mar 16 10:11:04 localhost kernel: [<ffffffff813adece>] device_add+0x28e/0x650
Mar 16 10:11:04 localhost kernel: [<ffffffff813ae4a0>] device_create_groups_vargs+0xe0/0x110
Mar 16 10:11:04 localhost kernel: [<ffffffff813ae531>] device_create+0x41/0x50
Mar 16 10:11:04 localhost kernel: [<ffffffff81518882>] ? mutex_lock+0x12/0x22
Mar 16 10:11:04 localhost kernel: [<ffffffffa03d51a7>] snd_register_device_for_dev+0xd7/0x1c0 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa04aa508>] snd_pcm_dev_register+0x138/0x2d0 [snd_pcm]
Mar 16 10:11:04 localhost kernel: [<ffffffff813ae500>] ? device_create+0x10/0x50
Mar 16 10:11:04 localhost kernel: [<ffffffffa03dbe21>] snd_device_register_all+0x41/0x70 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa03d6952>] snd_card_register+0x42/0x240 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0031a33>] bmio_audio_probe+0x253/0x2ba [snd_blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0620dc4>] bmio_driver_register_subdriver+0x94/0xd0 [blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0034000>] ? 0xffffffffa0033fff
Mar 16 10:11:04 localhost kernel: [<ffffffffa0034010>] bmio_init+0x10/0x12 [snd_blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffff8100214a>] do_one_initcall+0xfa/0x1b0
Mar 16 10:11:04 localhost kernel: [<ffffffff81087d78>] ? __blocking_notifier_call_chain+0x58/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff810d892b>] load_module+0x1e2b/0x2570
Mar 16 10:11:04 localhost kernel: [<ffffffff810d5160>] ? store_uevent+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff810d91e6>] SyS_finit_module+0x86/0xb0
Mar 16 10:11:04 localhost kernel: [<ffffffff815216ad>] system_call_fastpath+0x1a/0x1f
Mar 16 10:11:04 localhost kernel: BUG: scheduling while atomic: modprobe/1253/0x00000003
Mar 16 10:11:04 localhost kernel: Modules linked in: snd_blackmagic_io(PO+) snd_hda_codec_realtek x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crct10dif_common crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd mousedev joydev hid_generic psmouse serio_raw atkbd iTCO_wdt libps2 iTCO_vendor_support evdev microcode usbhid hid pcspkr i2c_i801(+) i915(+) igb dca blackmagic_io(PO) intel_agp intel_gtt snd_hda_intel fan snd_hda_codec thermal e1000e snd_hwdep drm_kms_helper mei_me snd_pcm drm snd_page_alloc i2c_algo_bit snd_timer i2c_core snd ptp shpchp soundcore mei i8042 serio pps_core lpc_ich video button blackmagic(PO) ext4 crc16 mbcache jbd2 sd_mod ahci libahci libata crc32c_intel ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore usb_common
Mar 16 10:11:04 localhost kernel: CPU: 1 PID: 1253 Comm: modprobe Tainted: P W O 3.13.6-1-ARCH #1
Mar 16 10:11:04 localhost kernel: Hardware name: / , BIOS 4.6.5 07/26/2013
Mar 16 10:11:04 localhost kernel: ffff88021ea94440 ffff88020f817818 ffffffff81513274 7fffffffffffffff
Mar 16 10:11:04 localhost kernel: ffff88020f817828 ffffffff815101fe ffff88020f817930 ffffffff81515c6b
Mar 16 10:11:04 localhost kernel: ffff88020f859b00 ffff88020f817fd8 0000000000014440 0000000000014440
Mar 16 10:11:04 localhost kernel: Call Trace:
Mar 16 10:11:04 localhost kernel: [<ffffffff81513274>] dump_stack+0x4d/0x6f
Mar 16 10:11:04 localhost kernel: [<ffffffff815101fe>] __schedule_bug+0x4c/0x5a
Mar 16 10:11:04 localhost kernel: [<ffffffff81515c6b>] __schedule+0x7fb/0x900
Mar 16 10:11:04 localhost kernel: [<ffffffff810a2548>] ? __wake_up_common+0x58/0x90
Mar 16 10:11:04 localhost kernel: [<ffffffff812b55df>] ? idr_get_empty_slot+0x16f/0x3c0
Mar 16 10:11:04 localhost kernel: [<ffffffff812bdd8b>] ? string.isra.5+0x3b/0xf0
Mar 16 10:11:04 localhost kernel: [<ffffffff81515d99>] schedule+0x29/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff81514f09>] schedule_timeout+0x1e9/0x270
Mar 16 10:11:04 localhost kernel: [<ffffffff8109cf67>] ? enqueue_task_fair+0x107/0x540
Mar 16 10:11:04 localhost kernel: [<ffffffff810902e5>] ? check_preempt_curr+0x75/0xa0
Mar 16 10:11:04 localhost kernel: [<ffffffff81516743>] wait_for_common+0xd3/0x180
Mar 16 10:11:04 localhost kernel: [<ffffffff81092700>] ? wake_up_process+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff8151680d>] wait_for_completion+0x1d/0x20
Mar 16 10:11:04 localhost kernel: [<ffffffff813b5ef7>] devtmpfs_create_node+0xf7/0x130
Mar 16 10:11:04 localhost kernel: [<ffffffff813adece>] device_add+0x28e/0x650
Mar 16 10:11:04 localhost kernel: [<ffffffff813ae4a0>] device_create_groups_vargs+0xe0/0x110
Mar 16 10:11:04 localhost kernel: [<ffffffff813ae531>] device_create+0x41/0x50
Mar 16 10:11:04 localhost kernel: [<ffffffff81518882>] ? mutex_lock+0x12/0x22
Mar 16 10:11:04 localhost kernel: [<ffffffffa03d51a7>] snd_register_device_for_dev+0xd7/0x1c0 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa04aa508>] snd_pcm_dev_register+0x138/0x2d0 [snd_pcm]
Mar 16 10:11:04 localhost kernel: [<ffffffff813ae500>] ? device_create+0x10/0x50
Mar 16 10:11:04 localhost kernel: [<ffffffffa03dbe21>] snd_device_register_all+0x41/0x70 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa03d6952>] snd_card_register+0x42/0x240 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0031a33>] bmio_audio_probe+0x253/0x2ba [snd_blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0620dc4>] bmio_driver_register_subdriver+0x94/0xd0 [blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0034000>] ? 0xffffffffa0033fff
Mar 16 10:11:04 localhost kernel: [<ffffffffa0034010>] bmio_init+0x10/0x12 [snd_blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffff8100214a>] do_one_initcall+0xfa/0x1b0
Mar 16 10:11:04 localhost kernel: [<ffffffff81087d78>] ? __blocking_notifier_call_chain+0x58/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff810d892b>] load_module+0x1e2b/0x2570
Mar 16 10:11:04 localhost kernel: [<ffffffff810d5160>] ? store_uevent+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff810d91e6>] SyS_finit_module+0x86/0xb0
Mar 16 10:11:04 localhost kernel: [<ffffffff815216ad>] system_call_fastpath+0x1a/0x1f
Mar 16 10:11:04 localhost kernel: BUG: scheduling while atomic: modprobe/1253/0x00000003
Mar 16 10:11:04 localhost kernel: Modules linked in: snd_blackmagic_io(PO+) snd_hda_codec_realtek x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crct10dif_common crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd mousedev joydev hid_generic psmouse serio_raw atkbd iTCO_wdt libps2 iTCO_vendor_support evdev microcode usbhid hid pcspkr i2c_i801(+) i915(+) igb dca blackmagic_io(PO) intel_agp intel_gtt snd_hda_intel fan snd_hda_codec thermal e1000e snd_hwdep drm_kms_helper mei_me snd_pcm drm snd_page_alloc i2c_algo_bit snd_timer i2c_core snd ptp shpchp soundcore mei i8042 serio pps_core lpc_ich video button blackmagic(PO) ext4 crc16 mbcache jbd2 sd_mod ahci libahci libata crc32c_intel ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore usb_common
Mar 16 10:11:04 localhost kernel: CPU: 1 PID: 1253 Comm: modprobe Tainted: P W O 3.13.6-1-ARCH #1
Mar 16 10:11:04 localhost kernel: Hardware name: / , BIOS 4.6.5 07/26/2013
Mar 16 10:11:04 localhost kernel: ffff88021ea94440 ffff88020f817838 ffffffff81513274 7fffffffffffffff
Mar 16 10:11:04 localhost kernel: ffff88020f817848 ffffffff815101fe ffff88020f817950 ffffffff81515c6b
Mar 16 10:11:04 localhost kernel: ffff88020f859b00 ffff88020f817fd8 0000000000014440 0000000000014440
Mar 16 10:11:04 localhost kernel: Call Trace:
Mar 16 10:11:04 localhost kernel: [<ffffffff81513274>] dump_stack+0x4d/0x6f
Mar 16 10:11:04 localhost kernel: [<ffffffff815101fe>] __schedule_bug+0x4c/0x5a
Mar 16 10:11:04 localhost kernel: [<ffffffff81515c6b>] __schedule+0x7fb/0x900
Mar 16 10:11:04 localhost kernel: [<ffffffff812b55df>] ? idr_get_empty_slot+0x16f/0x3c0
Mar 16 10:11:04 localhost kernel: [<ffffffff812bdd8b>] ? string.isra.5+0x3b/0xf0
Mar 16 10:11:04 localhost kernel: [<ffffffff81515d99>] schedule+0x29/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff81514f09>] schedule_timeout+0x1e9/0x270
Mar 16 10:11:04 localhost kernel: [<ffffffff8109cf67>] ? enqueue_task_fair+0x107/0x540
Mar 16 10:11:04 localhost kernel: [<ffffffff810902e5>] ? check_preempt_curr+0x75/0xa0
Mar 16 10:11:04 localhost kernel: [<ffffffff81516743>] wait_for_common+0xd3/0x180
Mar 16 10:11:04 localhost kernel: [<ffffffff81092700>] ? wake_up_process+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff8151680d>] wait_for_completion+0x1d/0x20
Mar 16 10:11:04 localhost kernel: [<ffffffff813b5ef7>] devtmpfs_create_node+0xf7/0x130
Mar 16 10:11:04 localhost kernel: [<ffffffff813adece>] device_add+0x28e/0x650
Mar 16 10:11:04 localhost kernel: [<ffffffff813ae4a0>] device_create_groups_vargs+0xe0/0x110
Mar 16 10:11:04 localhost kernel: [<ffffffff813ae531>] device_create+0x41/0x50
Mar 16 10:11:04 localhost kernel: [<ffffffff81518882>] ? mutex_lock+0x12/0x22
Mar 16 10:11:04 localhost kernel: [<ffffffffa03d51a7>] snd_register_device_for_dev+0xd7/0x1c0 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa03dafb5>] snd_ctl_dev_register+0x65/0x90 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa03dbe21>] snd_device_register_all+0x41/0x70 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa03d6952>] snd_card_register+0x42/0x240 [snd]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0031a33>] bmio_audio_probe+0x253/0x2ba [snd_blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0620dc4>] bmio_driver_register_subdriver+0x94/0xd0 [blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffffa0034000>] ? 0xffffffffa0033fff
Mar 16 10:11:04 localhost kernel: [<ffffffffa0034010>] bmio_init+0x10/0x12 [snd_blackmagic_io]
Mar 16 10:11:04 localhost kernel: [<ffffffff8100214a>] do_one_initcall+0xfa/0x1b0
Mar 16 10:11:04 localhost kernel: [<ffffffff81087d78>] ? __blocking_notifier_call_chain+0x58/0x70
Mar 16 10:11:04 localhost kernel: [<ffffffff810d892b>] load_module+0x1e2b/0x2570
Mar 16 10:11:04 localhost kernel: [<ffffffff810d5160>] ? store_uevent+0x40/0x40
Mar 16 10:11:04 localhost kernel: [<ffffffff810d91e6>] SyS_finit_module+0x86/0xb0
Mar 16 10:11:04 localhost kernel: [<ffffffff815216ad>] system_call_fastpath+0x1a/0x1f
Mar 16 10:11:04 localhost kernel: BlackmagicIO: Initialised ALSA driver for blackmagic!io0
Mar 16 10:11:05 localhost kernel: fbcon: inteldrmfb (fb0) is primary device
Mar 16 10:11:05 localhost kernel: hub 3-1:1.0: USB hub found
Mar 16 10:11:05 localhost kernel: hub 3-1:1.0: 6 ports detected
Mar 16 10:11:05 localhost kernel: Console: switching to colour frame buffer device 128x48
Mar 16 10:11:05 localhost kernel: i915 0000:00:02.0: fb0: inteldrmfb frame buffer device
Mar 16 10:11:05 localhost kernel: i915 0000:00:02.0: registered panic notifier
Mar 16 10:11:05 localhost kernel: ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
Mar 16 10:11:05 localhost kernel: input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input12
Mar 16 10:11:05 localhost kernel: [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
Mar 16 10:11:05 localhost kernel: ACPI Warning: 0x000000000000f040-0x000000000000f05f SystemIO conflicts with Region \_SB_.PCI0.SBUS.SMBI 1 (20131115/utaddress-251)
Mar 16 10:11:05 localhost kernel: snd_hda_intel 0000:00:03.0: irq 57 for MSI/MSI-X
Mar 16 10:11:05 localhost kernel: ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
Mar 16 10:11:05 localhost kernel: input: HDA Intel HDMI HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:03.0/sound/card0/input15
Mar 16 10:11:05 localhost kernel: input: HDA Intel HDMI HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:03.0/sound/card0/input14
Mar 16 10:11:05 localhost kernel: input: HDA Intel HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:03.0/sound/card0/input13
Mar 16 10:11:05 localhost kernel: Switched to clocksource tsc
Mar 16 10:11:05 localhost kernel: usb 4-1: new high-speed USB device number 2 using ehci-pci
Mar 16 10:11:05 localhost kernel: hub 4-1:1.0: USB hub found
Mar 16 10:11:05 localhost kernel: hub 4-1:1.0: 8 ports detected
Mar 16 10:11:06 localhost kernel: [drm] Enabling RC6 states: RC6 on, RC6p off, RC6pp off
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:09 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:10 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:11 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:12 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:13 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:14 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:14 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:14 localhost kernel: [drm:intel_uncore_check_errors] *ERROR* Unclaimed register before interrupt
Mar 16 10:11:14 localhost kernel: ata6.00: configured for UDMA/133
Mar 16 10:11:14 localhost kernel: ata6: EH complete
Mar 16 10:12:29 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): enp3s0: link is not ready
Mar 16 10:12:30 localhost kernel: igb: enp3s0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: RX
Mar 16 10:12:30 localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): enp3s0: link becomes ready
Mar 16 10:14:38 localhost kernel: [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 251
Mar 16 10:14:38 localhost kernel: Raw EDID:
Mar 16 10:14:38 localhost kernel: 00 ff ff ff ff ff ff 00 0d 0d 11 75 70 03 00 00
Mar 16 10:14:38 localhost kernel: 05 17 01 04 a5 2b 1d 78 e2 80 42 ac 51 30 b4 25
Mar 16 10:14:38 localhost kernel: 10 50 53 00 00 00 01 01 01 01 01 01 01 01 01 01
Mar 16 10:14:38 localhost kernel: 01 01 01 01 01 01 e0 15 00 a0 40 00 16 30 30 20
Mar 16 10:14:38 localhost kernel: 34 00 06 4d 21 00 00 1a 3a 12 00 a0 40 00 16 30
Mar 16 10:14:38 localhost kernel: 30 20 34 00 06 4d 21 00 00 1a 00 00 00 fd 00 38
Mar 16 10:14:38 localhost kernel: 4c 1e 53 11 00 0a 20 20 20 20 20 20 00 00 00 fc
Mar 16 10:14:38 localhost kernel: 00 31 30 32 34 78 37 36 38 0a 20 20 20 20 00 13
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:39 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames
Mar 16 10:14:40 localhost kernel: BlackmagicIO: WARNING: Ran out of free input frames

and these repeat on for a long time.

I also tried an older LTS kernel, version 3.10.33, and this time I do not get a kernel BUG, but the "WARNING: Ran out of free input frames" is still spammed to dmesg, and my capture rate is even slower now, I can only get 20fps instead of 30.

Also when trying to unload the modules with these kernels, I always get:

BUG: soft lockup - CPU#1 stuck for 22s! [rmmod:12950]

And rmmod hangs until I reboot the computer.

Any idea what could be wrong here? I've been using version 9.7.2a18 without issues, but I decided to try 10.0 and now I don't think I can even go back since the firmware has been updated using the 10.0 drivers.

Any advice would be greatly appreciated.

Since I know Arch Linux isn't officially supported, I tried installing Ubuntu 12.04.4 LTS also. Same issue there as with the LTS kernel in Arch, lots of warnings in dmesg and slow input capturing.

The kernel modules are created to work with official vanilla kernel. The RT kernel you were trying to use with Arch is very heavily modified. It's extreamly unlikely you will be able to get the modules to work with an RT kernel. I'm amazed the modules even loaded.

Did you build the modules, or did you just install pre-built modules? What software are you trying to capture with?

I'm using my own capture software, and built the modules from source using DKMS.

Actually I have been using an older RT kernel rather successfully for a couple years now, even in shipped products. It's very necessary in my case as it keeps the system latency both low and (most importantly) steady, it does not fluctuate wildly like with the vanilla kernel, even when there's no other programs running besides X and the capture. And I know there are others using RT kernels with Blackmagic devices successfully, particularly some of the Ubuntu Studio people who need very low-latency audio (and video).

I seem to recall there was something somewhere within either the code or documentation for the driver/SDK that mentioned the realtime -rt kernels, so I figured that Blackmagic was at least aware of it, but I could be wrong.

I do think it's crucial that they support these kernels however, given the real-time nature of the products people develop with their cards, otherwise I'll have to look for other solutions if I cannot provide predictable latency to my customers.

On a side note, I switched to an NVIDIA GPU with the proprietary driver instead of using the onboard Intel graphics (or nouveau which was too slow also), and the capture speed is back to normal (at least under Ubuntu 12.04), however I still get those thousands of warnings spammed to dmesg.

I'm familiar with the RT patchset. I've used it myself quite a bit. The rt kernel is mentioned in the documentation: it explicitly states that the rt kernels are not supported. You may be able to get an rt kernel to work now and then, but it is a complete crap shoot what the results will be. The RT patchset changes between kernel version are quite drastically different to keep sync with changes in mainline. How that effects the interfaces that the decklink card uses can be just as drastic.

The granularity of latency delays in the mainline kernel is microscopic compared to other factors. If your purpose is for streaming, encoding delays for things like GOP size, decoding buffer size, etc. are just so huge in comparison, that it's not even close to being worth the trouble. If your purpose is something more exotic like software that tries to analyze and react to the video in real time (facial recognition or performance art for instance) then kernel latency might start to come into play, but it would be way down on the list of things that could cause latency delays.

For what it's worth, kernel 3.14 is going to mainline the SCHED_DEADLINE CPU scheduler, which should go a long way in allowing software to provide latency guarantees.

If whatever software you are using draws the video input to the screen without de-coupling the capture and drawing process with something like a ringbuffer that allows the write pointer to freely pass the read pointer or some sort of message queue, the drawing process will block the capture process. And the Nouveau / Intel drivers can not draw nearly as fast as the proprietary Nvidia driver. Given the feedback you've given, process blocking IO would be the primary suspect...

Thanks for the insight, I was not aware about the deadline CPU scheduler (just the IO scheduler).

The application is medical vision (mostly surgical), so hard real-time with a fixed capture->render latency of <16ms is mandatory. However the appliance can also record this video in real-time as well, but that's where the latency jumps cause problems. Usually we run between 5-10ms and all is well, but sometimes if you are recording, the encoder/muxer gets some extra time and that causes the renderer to drop a frame. I would much rather the encoder drop frames than the main render display, but I'm not sure that is something I could control from a software perspective.

Thanks

Ah, that's a use case you don't run into in this forum very often and make a lot more sense in regards to low latency issues. At that point, you have to also consider that the closed driver / SDK may also be a limiting factor and you really don't have much of a way to figure out it's limits except to just test it manually.

There is also the consideration that since your use case is quite different than most people's who have used the SDK in a Linux environment. The software being developed may be using code paths in the SDK that are not well tested out.

One thing I forgot to mention, I will say that the Ubuntu kernels are not vanilla, they actually have a lot of patches, and the (mainline, real vanilla, non-RT) kernels that we were using on Arch Linux were the ones that would brick the decklink cards when trying to update the firmware, yet works just fine in Ubuntu, which makes no sense at all to me. I wonder exactly what it is that causes the firmware to fail, other then "unsupported distro", there has to be a good technical reason I think.

It's much less about how much the kernel is patched, as opposed as to what in the kernel is changed by the patch. The RT patchset changes some very lowlevel core interfaces and how they behave. Distro specific patch sets tend to be bug fixes that haven't been merged into mainline yet, or extra bells and whistles. They rarely modify core functionality.

I use a Gentoo kernel, and it is patched also. But it's mostly out-of-tree drivers and bug fixes.

Reuben,

We are still having major issues with the 10.0 and 10.1 drivers even with Ubuntu (14.04) and stock kernel.

I get "BlackmagicIO: WARNING: Ran out of free input frames" wrote to dmesg 30-60 times a second depending on the mode used. A regular 1080i59 mode over SDI seems to work fine (that message does not appear), but anything that needs more bandwidth than that (1080p60 or dual-stream 3D) just gives me the above message and no signal is ever detected.

Do you have any ideas on how to fix this? Or if not, is it possible to downgrade the firmware to use the older 9.x drivers? I was not successful in just downgrading the drivers themselves.

EDIT: I'm only seeing this problem with 4K Extreme cards, I have an older HD Extreme 3D card that seems to work just fine.

The 4k serise is quite new, so there's always the chance that there are rough edges in their firmware or driver support. I also have been using an older HD Extreme 3D card and have not had any issues with the 10.x drivers. But I also haven't had need for anything over 1080p, so I'm not sure I could be of much help.

I don't think there's anything preventing you from downgrading. However I'm not sure what the support is like for the 4k series of cards in those older drivers / firmware.

Yea it looks like the firmware is not downgraded when installing an older driver, so it's incompatible or something as it won't let me capture unless I go back to the new driver.

If the 4K cards are having issues, IMO they should recall the broken ones and replace them, or provide a firmware/driver fix, OR continue to sell the HD Extreme cards.

Or you know, SOMETHING. Currently we are dead in the water and have had to do a full stop on production of our machines as the capture cards no longer work... Black magic does not respond to my inquiries either.

Another HUGE showstopper with the new cards/drivers is that the HDMI EDID is now completely missing, it just refuses to send one, so compatibility is now shot and we've also had to stop production for that issue as well.

Trying to source enough older cards is not working for us either. Seriously considering switching to Viewcast or some other Linux-friendly card that works correctly (at least the Viewcast supports non-broadcast resolutions as well, something we need, and something Blackmagic says they don't care about).

We have an immediate need for hundreds of cards.

Holy crap dude. How many capture cards are you using?

Are you trying to force the downgrade, or just installing the old drivers to see if it does it on it's own? By default the autostart runs BlackmagicFirmwareUpdaterGui which checks status to see if firmware can be upgraded. Only then does it run the actual firmware loader BlackmagicFirmwareUpdater.

Try running BlackmagicFirmwareUpdater directly from the console to see if it will overwrite the old firmware.

If you crack that file open with a hex editor, you will see that the BlackmagicFirmwareUpdater has a few commands that aren't listed when it prints out the usage syntax. One of them is "force". So try that as a command and see if it works. Would probably be something like:

Code: Select all

BlackmagicFirmwareUpdater update force [device]

or

Code: Select all

BlackmagicFirmwareUpdater force [device]

Not sure if [device] designation is just the card index number or something more elaborate. I've never needed to downgrade firmware, so I'm not certain this will work.

Looks like this is a 4K Extreme issue only.

Did some more testing today, tried some HD Extreme cards, all had 0x4b firmware but some had older 9.x drivers and some had 10.1a11 driver... none of them had any EDID issues.

But all the 4K Extreme cards I tried (they had 0x58 firmware IIRC) refused to send an EDID to the source when trying to capture.

[Joshua Helling]

You could also use a Mac or a Windows system to force a downgrade. It might be simpler then trying to force it in linux.

So that could help you get those cards back to 9.x in the short term to get them running again. The API for 10 is quite a bit different and could require changes to the code. You could get help for that through developer@blackmagicdesgin.com Unfortunately my group does not answer those emails.