[ 8.177334] nouveau [ VBIOS][0000:01:00.0] using image from ACPI [ 8.177456] nouveau [ VBIOS][0000:01:00.0] BIT signature found [ 8.177458] nouveau [ VBIOS][0000:01:00.0] version 82.07.3e.00.0d [ 8.178001] nouveau [ DEVINIT][0000:01:00.0] adaptor not initialised [ 8.178014] nouveau [ VBIOS][0000:01:00.0] running init tables [ 9.951187] wlan0: authenticate with e8:40:f2:9b:ba:6d [ 9.957619] wlan0: send auth to e8:40:f2:9b:ba:6d (try 1/3) [ 9.962620] wlan0: authenticated [ 9.963075] wlan0: associate with e8:40:f2:9b:ba:6d (try 1/3) [ 9.968464] wlan0: RX AssocResp from e8:40:f2:9b:ba:6d (capab=0x411 status=0 aid=3) [ 9.968499] wlan0: associated [ 9.968505] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 10.298899] nouveau 0000:01:00.0: irq 52 for MSI/MSI-X [ 10.298908] nouveau [ PMC][0000:01:00.0] MSI interrupts enabled [ 10.299459] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x122130 [ IBUS ] [ 10.299463] nouveau [ PFB][0000:01:00.0] RAM type: GDDR5 [ 10.299468] nouveau [ PFB][0000:01:00.0] RAM size: 1975398418 MiB [ 10.299470] nouveau [ PFB][0000:01:00.0] ZCOMP: 0 tags [ 10.299826] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x10f65c [ IBUS ] [ 10.301616] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x10f65c [ TIMEOUT ] [ 10.334095] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x10f584 [ TIMEOUT ] [ 10.541441] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x022438 [ TIMEOUT ] [ 10.548605] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x021c14 [ TIMEOUT ] [ 15.420077] nouveau E[ PIBUS][0000:01:00.0] HUB0: 0x10f924 0x00000000 (0x18400200) [ 15.420084] nouveau E[ PIBUS][0000:01:00.0] ROP0: 0x10f900 0xaaaaaaaa (0x1f408201) [ 15.421284] nouveau [ CLK][0000:01:00.0] 07: core 405 MHz memory 810 MHz [ 15.421362] nouveau [ CLK][0000:01:00.0] 0a: core 270-1097 MHz memory 1600 MHz [ 15.421461] nouveau [ CLK][0000:01:00.0] 0f: core 270-1097 MHz memory 5010 MHz [ 15.421823] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x132020 [ IBUS ] [ 15.421848] nouveau [ CLK][0000:01:00.0] --: core 405 MHz [ 15.433251] nouveau [ PGRAPH][0000:01:00.0] using external firmware [ 15.433269] nouveau 0000:01:00.0: Direct firmware load failed with error -2 [ 15.433270] nouveau 0000:01:00.0: Falling back to user helper [ 15.433612] nouveau 0000:01:00.0: Direct firmware load failed with error -2 [ 15.433615] nouveau 0000:01:00.0: Falling back to user helper [ 15.434150] nouveau E[ PGRAPH][0000:01:00.0] failed to load fuc409c [ 15.434154] nouveau E[ DEVICE][0000:01:00.0] failed to create 0x18000717, -22 [ 15.434157] nouveau E[ DRM] failed to create 0x80000080, -22 [ 15.434827] nouveau: probe of 0000:01:00.0 failed with error -22 [ 15.435628] systemd-udevd[1513]: Failed to apply ACL on /dev/dri/card1: No such file or directory [ 15.662966] init: plymouth-upstart-bridge main process ended, respawning [ 15.666060] init: plymouth-upstart-bridge main process (1570) killed by TERM signal [ 15.684114] systemd-logind[887]: Failed to start unit user@1000.service: Unknown unit: user@1000.service [ 15.684119] systemd-logind[887]: Failed to start user service: Unknown unit: user@1000.service [ 15.686370] systemd-logind[887]: New session c1 of user hash. [ 15.686385] systemd-logind[887]: Linked /tmp/.X11-unix/X0 to /run/user/1000/X11-display. [ 15.876597] irq 16: nobody cared (try booting with the "irqpoll" option) [ 15.876602] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.16.0-28-generic #38-Ubuntu [ 15.876604] Hardware name: Acer Aspire VN7-591G/Aspire VN7-591G, BIOS V1.08 09/12/2014 [ 15.876605] ffff8804487de4a4 ffff88045f243e60 ffffffff81781eaa ffff8804487de400 [ 15.876607] ffff88045f243e88 ffffffff810d26a2 ffff8804487de400 0000000000000000 [ 15.876609] 0000000000000010 ffff88045f243ec0 ffffffff810d2a67 0000000000000000 [ 15.876611] Call Trace: [ 15.876612] [] dump_stack+0x45/0x56 [ 15.876622] [] __report_bad_irq+0x32/0xd0 [ 15.876624] [] note_interrupt+0x267/0x2b0 [ 15.876626] [] handle_irq_event_percpu+0x133/0x1a0 [ 15.876628] [] handle_irq_event+0x3d/0x60 [ 15.876630] [] handle_fasteoi_irq+0x81/0x170 [ 15.876633] [] handle_irq+0x1e/0x40 [ 15.876636] [] do_IRQ+0x4d/0xe0 [ 15.876638] [] common_interrupt+0x6d/0x6d [ 15.876639] [] ? cpuidle_enter_state+0x4c/0xc0 [ 15.876646] [] cpuidle_enter+0x17/0x20 [ 15.876649] [] cpu_startup_entry+0x347/0x480 [ 15.876653] [] start_secondary+0x230/0x2c0 [ 15.876654] handlers: [ 15.876656] [] usb_hcd_irq [ 15.876657] Disabling IRQ #16 [ 35.452749] audit_printk_skb: 57 callbacks suppressed [ 35.452751] audit: type=1400 audit(1421866800.144:30): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=2556 comm="apparmor_parser" [ 35.452755] audit: type=1400 audit(1421866800.144:31): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="/usr/sbin/cupsd" pid=2556 comm="apparmor_parser" [ 35.467203] audit: type=1400 audit(1421866800.160:32): apparmor="STATUS" operation="profile_replace" profile="unconfined" name="third_party" pid=2556 comm="apparmor_parser"