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[Vitaly <vitaly.krugl.web@xxxxxxxxx>]

** Attachment added: "kern.log file; multiple crash instances"
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1449299/+attachment/4386123/+files/kern.log

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https://bugs.launchpad.net/bugs/1449299

Title:
  BUG: unable to handle kernel paging request at f80f0000 -
  nouveau_bo_wr32+0x27/0x30

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Freshly installed 14.04.1-Ubuntu Desktop. First-time installation, no
  legacy from prior versions.

  Hardware: Asus P4C800 Deluxe, latest BIOS 1021.005 08/04/2005

  Easily reproducible. Immediately after installing Ubuntu Desktop,
  started getting freezes in the GUI. Usually happens within a minute or
  so of using the GUI after boot-up. The system is unusable this way.

  I am willing to make the machine available for remote or local (in
  silicon valley) debugging.

  ADDITIONAL INFORMATION:
  Anecdotally, I noticed that if upon boot-up, I first launch the command-line console (CTL-ALT-F1), log into the console, then switch back to the graphical console (CTL-ALT-F7), then I am able to use the GUI for a couple of hours through normal shutdown without kernel crash. I observed this all of the 3 or so times that I did CTL-ALT-F1 and CTL-ALT-F7.

  Here is the stack trace from syslog:

  Apr 27 11:16:24 vitaly-desktop kernel: [  154.932232] BUG: unable to handle kernel paging request at f80f0000
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.932488] IP: [<c1326150>] iowrite32+0x30/0x40
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.932585] *pdpt = 0000000001af5001 *pde = 000000003441c067 *pte = 0000000000000000 
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.932787] Oops: 0002 [#1] SMP 
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.932865] Modules linked in: bnep rfcomm bluetooth 6lowpan_iphc snd_wavefront snd_cs4236 snd_opl3_lib snd_hwdep snd_wss_lib snd_mpu401_uart snd_seq_midi snd_seq_midi_event snd_intel8x0 snd_rawmidi snd_ac97_codec ac97_bus serio_raw snd_pcm snd_seq snd_seq_device snd_timer snd lpc_ich nouveau ns558 mxm_wmi wmi gameport soundcore video ttm drm_kms_helper drm i2c_algo_bit i82875p_edac edac_core shpchp parport_pc mac_hid ppdev lp parport hid_generic usbhid hid uas usb_storage firewire_ohci skge firewire_core pata_acpi crc_itu_t floppy
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.934097] CPU: 1 PID: 1096 Comm: Xorg Not tainted 3.16.0-34-generic #47~14.04.1-Ubuntu
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.934234] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./P4C800, BIOS 1021.005 08/04/2005
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.934389] task: eea92520 ti: f1a0e000 task.ti: f1a0e000
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.934487] EIP: 0060:[<c1326150>] EFLAGS: 00213292 CPU: 1
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.934588] EIP is at iowrite32+0x30/0x40
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.934681] EAX: 20000000 EBX: f80e0000 ECX: f80f0000 EDX: f80f0000
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.934813] ESI: 00003ffb EDI: ef88ad80 EBP: f1a0fd64 ESP: f1a0fd5c
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.934907]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.934991] CR0: 8005003b CR2: f80f0000 CR3: 2fecb000 CR4: 000007f0
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.935102] Stack:
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.935139]  f90fd017 00000000 f1a0fd98 f90f9231 00000040 00000000 00000008 00000001
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.935331]  ef974800 0000ffec 00000000 ef88ad80 f6973000 eac9e800 00000000 f1a0fdf8
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.935520]  f9107a96 eac9e988 00f20000 00000000 00000000 00000000 00001c00 00000020
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.935711] Call Trace:
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.935847]  [<f90fd017>] ? nouveau_bo_wr32+0x27/0x30 [nouveau]
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<f90f9231>] nouveau_dma_wait+0x131/0x670 [nouveau]
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<f9107a96>] nouveau_crtc_page_flip+0x206/0x650 [nouveau]
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c117910a>] ? kmem_cache_alloc_trace+0x17a/0x190
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<f87d39cb>] drm_mode_page_flip_ioctl+0x15b/0x2c0 [drm]
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<f87d3870>] ? drm_mode_gamma_get_ioctl+0xc0/0xc0 [drm]
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<f87c44ef>] drm_ioctl+0x1cf/0x530 [drm]
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c108cf0d>] ? __enqueue_entity+0x6d/0x80
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<f87d3870>] ? drm_mode_gamma_get_ioctl+0xc0/0xc0 [drm]
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c108e331>] ? set_next_entity+0xb1/0xe0
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c10bbf8f>] ? ktime_get+0x4f/0x130
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c1438e41>] ? __pm_runtime_resume+0x51/0x70
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<f90f7071>] nouveau_drm_ioctl+0x51/0x80 [nouveau]
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<f90f7020>] ? nouveau_pmops_thaw+0x20/0x20 [nouveau]
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c119f5e2>] do_vfs_ioctl+0x2f2/0x4f0
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c107d987>] ? hrtimer_start+0x27/0x30
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c105f7c0>] ? do_setitimer+0x200/0x270
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c10bc4b8>] ? ktime_get_ts+0x48/0x140
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c119f840>] SyS_ioctl+0x60/0x90
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020]  [<c169461f>] sysenter_do_call+0x12/0x12
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020] Code: 00 89 d1 77 26 81 fa 00 00 01 00 76 06 0f b7 d2 ef c3 90 55 ba 0d c8 8b c1 89 e5 89 c8 e8 49 fe ff ff 5d c3 8d b4 26 00 00 00 00 <89> 02 c3 8d b6 00 00 00 00 8d bc 27 00 00 00 00 3d ff ff 03 00
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020] EIP: [<c1326150>] iowrite32+0x30/0x40 SS:ESP 0068:f1a0fd5c
  Apr 27 11:16:24 vitaly-desktop kernel: [  154.936020] CR2: 00000000f80f0000

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