[ 1431.773690] nouveau: module verification failed: signature and/or required key missing - tainting kernel [ 1431.775555] MXM: GUID detected in BIOS [ 1431.775634] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140214/nsarguments-95) [ 1431.775680] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140214/nsarguments-95) [ 1431.775811] pci 0000:01:00.0: optimus capabilities: enabled, status dynamic power, hda bios codec supported [ 1431.775814] VGA switcheroo: detected Optimus DSM method \_SB_.PCI0.PEG0.PEGP handle [ 1431.775844] nouveau 0000:01:00.0: enabling device (0006 -> 0007) [ 1431.776307] nouveau [ DEVICE][0000:01:00.0] BOOT0 : 0x0e4190a2 [ 1431.776309] nouveau [ DEVICE][0000:01:00.0] Chipset: GK104 (NVE4) [ 1431.776310] nouveau [ DEVICE][0000:01:00.0] Family : NVE0 [ 1431.776329] nouveau [ VBIOS][0000:01:00.0] checking PRAMIN for image... [ 1431.776336] nouveau [ VBIOS][0000:01:00.0] ... signature not found [ 1431.776337] nouveau [ VBIOS][0000:01:00.0] checking PROM for image... [ 1431.848545] nouveau [ VBIOS][0000:01:00.0] ... appears to be valid [ 1431.848547] nouveau [ VBIOS][0000:01:00.0] using image from PROM [ 1431.848631] nouveau [ VBIOS][0000:01:00.0] BIT signature found [ 1431.848633] nouveau [ VBIOS][0000:01:00.0] version 80.04.f8.02.06 [ 1431.848871] nouveau [ DEVINIT][0000:01:00.0] adaptor not initialised [ 1431.848878] nouveau [ VBIOS][0000:01:00.0] running init tables [ 1432.113557] nouveau [ MXM][0000:01:00.0] BIOS version 3.0 [ 1432.115731] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140214/nsarguments-95) [ 1432.115790] nouveau [ MXM][0000:01:00.0] MXMS Version 3.0 [ 1432.115812] nouveau 0000:01:00.0: irq 56 for MSI/MSI-X [ 1432.115821] nouveau [ PMC][0000:01:00.0] MSI interrupts enabled [ 1432.115867] nouveau [ PFB][0000:01:00.0] RAM type: GDDR5 [ 1432.115868] nouveau [ PFB][0000:01:00.0] RAM size: 3072 MiB [ 1432.115869] nouveau [ PFB][0000:01:00.0] ZCOMP: 0 tags [ 1432.118249] nouveau [ VOLT][0000:01:00.0] GPU voltage: 600000uv [ 1432.141495] nouveau [ PTHERM][0000:01:00.0] FAN control: none / external [ 1432.141502] nouveau [ PTHERM][0000:01:00.0] fan management: automatic [ 1432.141510] nouveau [ PTHERM][0000:01:00.0] internal sensor: yes [ 1432.141533] nouveau [ CLK][0000:01:00.0] 07: core 324-405 MHz memory 648 MHz [ 1432.141583] nouveau [ CLK][0000:01:00.0] 0a: core 405-967 MHz memory 1620 MHz [ 1432.141643] nouveau [ CLK][0000:01:00.0] 0e: core 405-967 MHz memory 4000 MHz [ 1432.141717] nouveau [ CLK][0000:01:00.0] 0f: core 405-967 MHz memory 5000 MHz [ 1432.141786] nouveau [ CLK][0000:01:00.0] --: core 324 MHz memory 648 MHz [ 1432.172909] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x400700 [ IBUS ] [ 1432.172940] vga_switcheroo: enabled [ 1432.173065] [TTM] Zone kernel: Available graphics memory: 4045646 kiB [ 1432.173066] [TTM] Zone dma32: Available graphics memory: 2097152 kiB [ 1432.173067] [TTM] Initializing pool allocator [ 1432.173070] [TTM] Initializing DMA pool allocator [ 1432.173087] nouveau [ DRM] VRAM: 3072 MiB [ 1432.173088] nouveau [ DRM] GART: 1048576 MiB [ 1432.173100] nouveau [ DRM] TMDS table version 2.0 [ 1432.173101] nouveau [ DRM] DCB version 4.0 [ 1432.173102] nouveau [ DRM] DCB conn 00: 08000040 [ 1432.173103] nouveau [ DRM] DCB conn 01: 00001161 [ 1432.173104] nouveau [ DRM] DCB conn 02: 00001231 [ 1432.173105] nouveau [ DRM] DCB conn 03: 01000331 [ 1432.173105] nouveau [ DRM] DCB conn 04: 01000446 [ 1432.173106] nouveau [ DRM] DCB conn 05: 02000546 [ 1432.173107] nouveau [ DRM] DCB conn 07: 00010746 [ 1432.173108] nouveau [ DRM] DCB conn 08: 00020847 [ 1432.173108] nouveau [ DRM] DCB conn 09: 00000900 [ 1432.177811] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1432.177834] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1432.177876] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000200000 [PTE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1432.178954] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1432.178972] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1432.178984] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1432.179059] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000200000 [PTE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1432.179152] nouveau [ DRM] MM: using COPY for buffer copies [ 1432.179159] [drm] Initialized nouveau 1.1.1 20120801 for 0000:01:00.0 on minor 1 [ 1432.179162] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1432.179180] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000000000 [UNSUPPORTED_APERTURE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1437.687449] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140214/nsarguments-95) [ 1437.687537] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM [ 1437.687541] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140214/nsarguments-95) [ 1437.687668] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1437.687682] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000000000 [UNSUPPORTED_APERTURE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1437.687698] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1437.687702] nouveau E[ PFIFO][0000:01:00.0] DROPPED_MMU_FAULT 0x00000000 [ 1540.731380] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x400700 [ IBUS ] [ 1540.731412] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1540.731421] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000000000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.731429] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1540.731446] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1540.731467] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1540.731477] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1540.731508] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000200000 [PTE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731519] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000201000 [PTE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731530] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000202000 [PTE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731540] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000204000 [PRIV_VIOLATION] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731551] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000204000 [PRIV_VIOLATION] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731563] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000205000 [UNSUPPORTED_KIND] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731574] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000207000 [UNSUPPORTED_APERTURE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731585] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000208000 [UNSUPPORTED_APERTURE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731596] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000208000 [UNSUPPORTED_APERTURE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731607] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000209000 [PTE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731617] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x000020a000 [PTE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731628] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x000020b000 [PTE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731638] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x000020c000 [UNSUPPORTED_KIND] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731649] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x000020d000 [UNSUPPORTED_KIND] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731660] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x000020e000 [UNSUPPORTED_APERTURE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731671] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x000020e000 [UNSUPPORTED_APERTURE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731693] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1540.731699] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000000000 [UNSUPPORTED_APERTURE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731713] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x00002b2000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.731763] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x00002b2000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.731787] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x00002b2000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.731885] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x00002b2000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.731924] nouveau E[ PFIFO][0000:01:00.0] SCHED_ERROR [ UNK01 ] [ 1540.731930] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000000000 [UNSUPPORTED_APERTURE] from BAR1/HOST_CPU_NB on channel 0x00bfc9e000 [unknown] [ 1540.731942] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x00002b2000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.731955] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x00002b2000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.731972] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x00002b2000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.731986] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x00002b2000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.732080] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x00002b2000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.732144] nouveau E[ PFIFO][0000:01:00.0] write fault at 0x0000271000 [UNSUPPORTED_KIND] from BAR3/HOST_CPU_NB on channel 0x00bfcb7000 [unknown] [ 1540.732209] [TTM] Finalizing pool allocator [ 1540.732213] [TTM] Finalizing DMA pool allocator [ 1540.732281] [TTM] Zone kernel: Used memory at exit: 0 kiB [ 1540.732283] [TTM] Zone dma32: Used memory at exit: 0 kiB [ 1540.732286] vga_switcheroo: disabled [ 1540.733050] [drm] Module unloaded [ 1541.099337] irq 16: nobody cared (try booting with the "irqpoll" option) [ 1541.099341] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G OE 3.15.6-200.fc20.x86_64 #1 [ 1541.099343] Hardware name: Notebook P15SM-A/SM1-A /P15SM-A/SM1-A , BIOS 4.6.5 03/27/2014 [ 1541.099345] 0000000000000000 830f1ca25c7ecc9b ffff88022fa03e40 ffffffff816ef48e [ 1541.099348] ffff88022381bd00 ffff88022fa03e68 ffffffff810e61f2 ffff88022381bd00 [ 1541.099350] 0000000000000010 0000000000000000 ffff88022fa03ea8 ffffffff810e6706 [ 1541.099352] Call Trace: [ 1541.099353] [] dump_stack+0x45/0x56 [ 1541.099363] [] __report_bad_irq+0x32/0xd0 [ 1541.099365] [] note_interrupt+0x226/0x270 [ 1541.099367] [] handle_irq_event_percpu+0xae/0x1a0 [ 1541.099369] [] handle_irq_event+0x37/0x60 [ 1541.099372] [] handle_fasteoi_irq+0x7c/0x140 [ 1541.099375] [] handle_irq+0xbf/0x150 [ 1541.099379] [] ? atomic_notifier_call_chain+0x1a/0x20 [ 1541.099381] [] do_IRQ+0x4f/0xf0 [ 1541.099384] [] common_interrupt+0x6d/0x6d [ 1541.099385] [] ? cpuidle_enter_state+0x52/0xc0 [ 1541.099390] [] ? cpuidle_enter_state+0x48/0xc0 [ 1541.099392] [] cpuidle_enter+0x17/0x20 [ 1541.099396] [] cpu_startup_entry+0x304/0x410 [ 1541.099399] [] rest_init+0x77/0x80 [ 1541.099403] [] start_kernel+0x458/0x479 [ 1541.099405] [] ? repair_env_string+0x5c/0x5c [ 1541.099407] [] ? early_idt_handlers+0x120/0x120 [ 1541.099409] [] x86_64_start_reservations+0x2a/0x2c [ 1541.099411] [] x86_64_start_kernel+0x14d/0x170 [ 1541.099412] handlers: [ 1541.099415] [] usb_hcd_irq [ 1541.099417] Disabling IRQ #16