[Bug 93721] New: Error: Unclaimed register before interrupt

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=93721

            Bug ID: 93721
           Summary: Error: Unclaimed register before interrupt
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.0-rc1
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: Larry.Finger at lwfinger.net
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Intermittently, the i915 driver reports the following:

[drm:intel_uncore_check_errors [i915]] *ERROR* Unclaimed register before
interrupt

These errors do not seem to interfere with system operation - they just spam
the logs.

This error was seem in 3.19, but not reported there. I do not know if it
happened with earlier kernels.

If debugging info is needed, please provide the startup parameter needed.

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