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["M. van Workum" <ubuntu@xxxxxxxxx>]

Just encountered this with the 304 driver:

Dec 27 16:42:49 Europa kernel: [ 4777.614309] NVRM: Xid (0000:01:00): 8, Channel 00000001
Dec 27 16:42:51 Europa kernel: [ 4779.587058] Watchdog[2714]: segfault at 0 ip 00007ffc5bb91f7e sp 00007ffc4d0fb6c0 error 6 in libcontent.so[7ffc5b469000+f14000]
Dec 27 16:42:51 Europa kernel: [ 4779.613147] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context

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https://bugs.launchpad.net/bugs/1258231

Title:
   NVRM: os_schedule: Attempted to yield the CPU while in atomic or
  interrupt context

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  The machine's (Dell Precision M6500, core i7, nVidia Quadro FX 3800M) interface frequently (once an hour at least) locks up. The mouse almost always functions fine but won't allow to click anything, it does however locks up sometimes as well.
  Sound continues to play just fine, as do all other background tasks. Switching to TTY1 and switching back to TTY7 will mostly recover the issue by relaunching the shell. Unfortunately it also results in a black screen from time to time, leaving nothing but to relaunch the window manager loosing all opened X applications. I have this issue since Ubuntu 12.10 and have failed finding any solution for it. Have tried numerous Kernels and nVidia drivers to no avail.

  Syslog entries:
  Dec  5 17:44:03 Europa kernel: [ 8187.092411] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092451] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092454] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092455] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092458] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092462] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092464] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092466] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092467] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092469] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092470] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092472] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092473] NVRM: os_pci_init_handle: invalid context!
  Dec  5 17:44:03 Europa kernel: [ 8187.092477] NVRM: Xid (0000:01:00): 8, Channel 00000003
  Dec  5 17:44:05 Europa kernel: [ 8189.091441] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-14-generic 3.11.0-14.21
  ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
  Uname: Linux 3.11.0-14-generic x86_64
  NonfreeKernelModules: nvidia wl
  ApportVersion: 2.12.5-0ubuntu2.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  mvanworkum   2639 F.... pulseaudio
   /dev/snd/controlC0:  mvanworkum   2639 F.... pulseaudio
   /dev/snd/pcmC0D0p:   mvanworkum   2639 F...m pulseaudio
  Date: Thu Dec  5 18:14:26 2013
  HibernationDevice: RESUME=UUID=d4c4f4ad-64b5-4110-b360-41660844584e
  InstallationDate: Installed on 2012-07-03 (519 days ago)
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
  MachineType: Dell Inc. Precision M6500
  MarkForUpload: True
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic root=UUID=6600ec3d-d9d2-4333-a5ae-5849e7f58e20 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-14-generic N/A
   linux-backports-modules-3.11.0-14-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  UpgradeStatus: Upgraded to saucy on 2013-09-06 (90 days ago)
  dmi.bios.date: 06/04/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A10
  dmi.board.name: 0R1203
  dmi.board.vendor: Dell Inc.
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA10:bd06/04/2013:svnDellInc.:pnPrecisionM6500:pvr:rvnDellInc.:rn0R1203:rvr:cvnDellInc.:ct8:cvr:
  dmi.product.name: Precision M6500
  dmi.sys.vendor: Dell Inc.

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