<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [BDW Regression]igt/pm_rpm some subcases cause “WARNING: CPU: 0 PID: 4578 at drivers/gpu/drm/i915/intel_display.c:1294 hsw_disable_ips+0x2d/0x15a [i915]()”" href="https://bugs.freedesktop.org/show_bug.cgi?id=83177#c6">Comment # 6</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [BDW Regression]igt/pm_rpm some subcases cause “WARNING: CPU: 0 PID: 4578 at drivers/gpu/drm/i915/intel_display.c:1294 hsw_disable_ips+0x2d/0x15a [i915]()”" href="https://bugs.freedesktop.org/show_bug.cgi?id=83177">bug 83177</a> from <a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> Guo Jinxian</a> <pre>The dmesg error is able to reproduce on latest -nightly(a2ca46441decdcdf4010f1db8a7041c8851327b3)n while running tests below igt/kms_flip/vblank-vs-modeset-suspend igt/kms_flip/vblank-vs-modeset-suspend-interruptible root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip --run-subtest vblank-vs-modeset-suspend-interruptible IGT-Version: 1.8-g137877f (x86_64) (Linux: 3.17.0-rc2_drm-intel-next-queued_a2ca46_20140909+ x86_64) Using monotonic timestamps Beginning vblank-vs-modeset-suspend-interruptible on crtc 8, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 .rtcwake: wakeup from "mem" using /dev/rtc0 at Wed Sep 17 19:44:24 2014 .rtcwake: wakeup from "mem" using /dev/rtc0 at Wed Sep 17 19:44:56 2014 vblank-vs-modeset-suspend-interruptible on crtc 8, connector 19: PASSED Beginning vblank-vs-modeset-suspend-interruptible on crtc 12, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 .rtcwake: wakeup from "mem" using /dev/rtc0 at Wed Sep 17 19:45:28 2014 .rtcwake: wakeup from "mem" using /dev/rtc0 at Wed Sep 17 19:46:00 2014 vblank-vs-modeset-suspend-interruptible on crtc 12, connector 19: PASSED Beginning vblank-vs-modeset-suspend-interruptible on crtc 16, connector 19 1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780 .rtcwake: wakeup from "mem" using /dev/rtc0 at Wed Sep 17 19:46:30 2014 .rtcwake: wakeup from "mem" using /dev/rtc0 at Wed Sep 17 19:47:02 2014 vblank-vs-modeset-suspend-interruptible on crtc 16, connector 19: PASSED Subtest vblank-vs-modeset-suspend-interruptible: SUCCESS (10.733s) root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep "<[1-4]>"|grep drm <3>[ 655.105654] [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. <3>[ 656.892202] [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. <3>[ 658.714766] [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. <3>[ 660.469291] [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. <3>[ 662.486959] [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. <3>[ 664.230482] [drm:hsw_unclaimed_reg_detect] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>