[Bug 89692] New: Moving cursor causes kernel: [40048.265024] [drm:drm_atomic_set_fb_for_plane] Set [FB:61] for plane state ffff88002bb02e40 to be entered to syslog thousands of times

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89692

            Bug ID: 89692
           Summary: Moving cursor causes kernel: [40048.265024]
                    [drm:drm_atomic_set_fb_for_plane] Set [FB:61] for
                    plane state ffff88002bb02e40 to be entered to syslog
                    thousands of times
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: cpollock at embarqmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 114487
  --> https://bugs.freedesktop.org/attachment.cgi?id=114487&action=edit
Output of lshw

First of all I'm still a bit new on doing bug reports so hopefully I've gotten
all the information correct. System information, Ubuntu 14.04.2 LTS, kernel
4.0.0-040000rc4-generic #201503152135 SMP Mon Mar 16 01:36:37 UTC 2015 x86_64
x86_64 x86_64 GNU/Linux. During times that I'm using the system each time the
mouse is moved lines such as this will be added to my syslog:

Mar 20 08:24:15 localhost kernel: [45661.199471]
[drm:drm_atomic_set_fb_for_plane] Set [FB:59] for plane state ffff8800d742fa80
Mar 20 08:24:15 localhost kernel: [45661.207468]
[drm:drm_atomic_set_fb_for_plane] Set [FB:59] for plane state ffff8800d742fe40
Mar 20 08:24:15 localhost kernel: [45661.215464]
[drm:drm_atomic_set_fb_for_plane] Set [FB:59] for plane state ffff8800d742fa80
Mar 20 08:24:15 localhost kernel: [45661.223477]
[drm:drm_atomic_set_fb_for_plane] Set [FB:59] for plane state ffff88002bb02cc0
Mar 20 08:24:15 localhost kernel: [45661.231456]
[drm:drm_atomic_set_fb_for_plane] Set [FB:59] for plane state ffff8800d742fe40

During the day this amounts to the thousands of lines such as this. For
instance yesterdays syslog was 47Mb in size. Since the system is idle from
about 10pm until 6:30am no entries such as this are made.

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