[Nouveau] [Bug 91355] New: [Quadro K610M] nouveau fills the kernel log when a video is played

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91355

            Bug ID: 91355
           Summary: [Quadro K610M] nouveau fills the kernel log when a
                    video is played
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: vincent-fdt at vinc17.net
        QA Contact: xorg-team at lists.x.org

When a video is played, either by VLC or by MPlayer, the kernel log
/var/log/kern.log is filled with lines like:

Jul 16 01:44:30 zira kernel: [81562.247407] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: ch 2 [Xorg[1209]] subc 5 mthd 0x0000 data 0x0000906e
Jul 16 01:44:30 zira kernel: [81562.280793] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: LBREQ
Jul 16 01:44:30 zira kernel: [81562.280801] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: ch 2 [Xorg[1209]] subc 5 mthd 0x0000 data 0x0000906e
Jul 16 01:44:30 zira kernel: [81562.314152] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: LBREQ
Jul 16 01:44:30 zira kernel: [81562.314161] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: ch 2 [Xorg[1209]] subc 5 mthd 0x0000 data 0x0000906e
Jul 16 01:44:30 zira kernel: [81562.347434] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: LBREQ
Jul 16 01:44:30 zira kernel: [81562.347443] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: ch 2 [Xorg[1209]] subc 5 mthd 0x0000 data 0x0000906e
Jul 16 01:44:30 zira kernel: [81562.380791] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: LBREQ
Jul 16 01:44:30 zira kernel: [81562.380800] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: ch 2 [Xorg[1209]] subc 5 mthd 0x0000 data 0x0000906e
Jul 16 01:44:30 zira kernel: [81562.414181] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: LBREQ
Jul 16 01:44:30 zira kernel: [81562.414189] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: ch 2 [Xorg[1209]] subc 5 mthd 0x0000 data 0x0000906e
Jul 16 01:44:30 zira kernel: [81562.447591] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: LBREQ
Jul 16 01:44:30 zira kernel: [81562.447600] nouveau E[   PFIFO][0000:01:00.0]
PBDMA0: ch 2 [Xorg[1209]] subc 5 mthd 0x0000 data 0x0000906e

also completely filling dmesg output.

Someone else has the same kind of problem:
  https://bugs.launchpad.net/ubuntu/+source/linux-lts-vivid/+bug/1474538

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