<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [BDW]igt/kms_flip some subcases cause "[drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem."" href="https://bugs.freedesktop.org/show_bug.cgi?id=85220#c1">Comment # 1</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [BDW]igt/kms_flip some subcases cause "[drm:hsw_unclaimed_reg_detect.isra.6 [i915]] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem."" href="https://bugs.freedesktop.org/show_bug.cgi?id=85220">bug 85220</a> from <a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> Guo Jinxian</a> <pre>With "i915.mmio_debug=1",dmesg error shows below: "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-gbba1cd0 (x86_64) (Linux: 3.17.0_drm-intel-nightly_8d1dbe_20141020+ 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 Mon Oct 20 19:14:13 2014 .rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Oct 20 19:14:45 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 Mon Oct 20 19:15:17 2014 .rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Oct 20 19:15:49 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 Mon Oct 20 19:16:21 2014 .rtcwake: wakeup from ""mem"" using /dev/rtc0 at Mon Oct 20 19:16:53 2014 vblank-vs-modeset-suspend-interruptible on crtc 16, connector 19: PASSED Subtest vblank-vs-modeset-suspend-interruptible: SUCCESS (11.066s) root@x-bdw05:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep ""<[1-4]>""|grep drm <4>[ 112.194529] WARNING: CPU: 0 PID: 2666 at drivers/gpu/drm/i915/intel_uncore.c:525 hsw_unclaimed_reg_debug.isra.10+0x62/0x72 [i915]() <4>[ 112.194541] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support ppdev pcspkr snd_hda_codec_hdmi i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea <4>[ 112.194544] CPU: 0 PID: 2666 Comm: kworker/0:2 Tainted: G W 3.17.0_drm-intel-nightly_8d1dbe_20141020+ #678 <4>[ 114.051239] WARNING: CPU: 3 PID: 4636 at drivers/gpu/drm/i915/intel_uncore.c:525 hsw_unclaimed_reg_debug.isra.10+0x62/0x72 [i915]() <4>[ 114.051257] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support ppdev pcspkr snd_hda_codec_hdmi i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea <4>[ 114.051260] CPU: 3 PID: 4636 Comm: kworker/u16:22 Tainted: G W 3.17.0_drm-intel-nightly_8d1dbe_20141020+ #678 <4>[ 114.051385] [<ffffffffa007d39b>] ? i915_drm_thaw_early+0x15/0x4f [i915] <4>[ 115.882932] WARNING: CPU: 3 PID: 4623 at drivers/gpu/drm/i915/intel_uncore.c:525 hsw_unclaimed_reg_debug.isra.10+0x62/0x72 [i915]() <4>[ 115.882950] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support ppdev pcspkr snd_hda_codec_hdmi i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea <4>[ 115.882953] CPU: 3 PID: 4623 Comm: kworker/u16:11 Tainted: G W 3.17.0_drm-intel-nightly_8d1dbe_20141020+ #678 <4>[ 115.883071] [<ffffffffa007d39b>] ? i915_drm_thaw_early+0x15/0x4f [i915] <4>[ 117.934572] WARNING: CPU: 0 PID: 4646 at drivers/gpu/drm/i915/intel_uncore.c:525 hsw_unclaimed_reg_debug.isra.10+0x62/0x72 [i915]() <4>[ 117.934584] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support ppdev pcspkr snd_hda_codec_hdmi i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea <4>[ 117.934587] CPU: 0 PID: 4646 Comm: kworker/u16:32 Tainted: G W 3.17.0_drm-intel-nightly_8d1dbe_20141020+ #678 <4>[ 117.934683] [<ffffffffa007d39b>] ? i915_drm_thaw_early+0x15/0x4f [i915] <4>[ 119.788136] WARNING: CPU: 1 PID: 4630 at drivers/gpu/drm/i915/intel_uncore.c:525 hsw_unclaimed_reg_debug.isra.10+0x62/0x72 [i915]() <4>[ 119.788153] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support ppdev pcspkr snd_hda_codec_hdmi i2c_i801 lpc_ich mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea <4>[ 119.788157] CPU: 1 PID: 4630 Comm: kworker/u16:16 Tainted: G W 3.17.0_drm-intel-nightly_8d1dbe_20141020+ #678 <4>[ 119.788283] [<ffffffffa007d39b>] ? i915_drm_thaw_early+0x15/0x4f [i915] "</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>