Bug 93721 - Error: Unclaimed register before interrupt
Summary: Error: Unclaimed register before interrupt
Status: RESOLVED OBSOLETE
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - Intel) (show other bugs)
Hardware: x86-64 Linux
: P3 normal
Assignee: intel-gfx-bugs@lists.freedesktop.org
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-02-24 03:02 UTC by Larry Finger
Modified: 2015-10-07 10:58 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.0-rc1
Subsystem:
Regression: No
Bisected commit-id:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Description Larry Finger 2015-02-24 03:02:16 UTC 
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.
Comment 1 Jani Nikula 2015-06-16 10:15:54 UTC 
Not sure if it'll help, but please try to reproduce the issue with later kernels with i915.mmio_debug=10 and drm.debug=14 module parameters set.

Please attach the dmesg anyway so we'll know a bit more about your system.
Comment 2 Jani Nikula 2015-10-07 10:58:04 UTC 
Long time no updates, closing.

If the problem persists with latest kernels, please file a bug at the freedesktop.org bugzilla [1], referencing this bug. Thank you.

[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel
Note You need to log in before you can comment on or make changes to this bug.