On CI_DRM_3155 on hard-hsw igt@kms_busy@extended-modeset-hang-newfb-with-reset-render caused dmesg warning. https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3155/shard-hsw3/igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-B.html Out IGT-Version: 1.19-g47ae1f8c (x86_64) (Linux: 4.14.0-rc2-CI-CI_DRM_3155+ x86_64) Subtest extended-modeset-hang-newfb-with-reset-render-B: SUCCESS (26.058s) Test requirement not met in function __real_main311, file kms_busy.c:337: Test requirement: !(n >= display.n_pipes) Environment PIGLIT_SOURCE_DIR="/opt/igt/piglit" PIGLIT_PLATFORM="mixed_glx_egl" Command /opt/igt/libexec/intel-gpu-tools/kms_busy --run-subtest extended-modeset-hang-newfb-with-reset-render-B Dmesg [ 218.240455] Setting dangerous option reset - tainting kernel [ 218.240859] Setting dangerous option reset - tainting kernel [ 218.241178] Setting dangerous option force_reset_modeset_test - tainting kernel [ 232.766887] i915 0000:00:02.0: Resetting chip after gpu hang [ 232.769761] Unclaimed read from register 0x70008 [ 232.769815] ------------[ cut here ]------------ [ 232.769855] WARNING: CPU: 2 PID: 60 at drivers/gpu/drm/i915/intel_uncore.c:844 __unclaimed_reg_debug+0x47/0x60 [i915] [ 232.769863] Modules linked in: snd_hda_intel i915 snd_hda_codec_hdmi x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_codec_realtek crct10dif_pclmul snd_hda_codec_generic crc32_pclmul ghash_clmulni_intel snd_hda_codec snd_hwdep r8169 snd_hda_core mii lpc_ich mei_me snd_pcm mei prime_numbers [last unloaded: i915] [ 232.770029] CPU: 2 PID: 60 Comm: kworker/2:1 Tainted: G U 4.14.0-rc2-CI-CI_DRM_3155+ #1 [ 232.770036] Hardware name: MSI MS-7924/Z97M-G43(MS-7924), BIOS V1.12 02/15/2016 [ 232.770076] Workqueue: events_long i915_hangcheck_elapsed [i915] [ 232.770091] task: ffff88040d228040 task.stack: ffffc90000244000 [ 232.770131] RIP: 0010:__unclaimed_reg_debug+0x47/0x60 [i915] [ 232.770138] RSP: 0018:ffffc900002479c0 EFLAGS: 00010082 [ 232.770153] RAX: 0000000000000024 RBX: 0000000000000000 RCX: 0000000000000002 [ 232.770160] RDX: 0000000080000002 RSI: ffffffff81cb44fe RDI: 00000000ffffffff [ 232.770167] RBP: ffffc900002479d8 R08: 0000000000000000 R09: 0000000000000001 [ 232.770175] R10: 00000000df9424c4 R11: 0000000090f8aa18 R12: 0000000000070008 [ 232.770182] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8803f98c0c88 [ 232.770190] FS: 0000000000000000(0000) GS:ffff88041fa80000(0000) knlGS:0000000000000000 [ 232.770198] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 232.770205] CR2: 00007ff5e7cda6c8 CR3: 00000003fb288002 CR4: 00000000001606e0 [ 232.770212] Call Trace: [ 232.770255] gen6_read32+0x22d/0x2b0 [i915] [ 232.770293] ? fwtable_read8+0x2c0/0x2c0 [i915] [ 232.770337] intel_modeset_setup_hw_state+0x6c4/0xda0 [i915] [ 232.770386] __intel_display_resume+0x1f/0xc0 [i915] [ 232.770429] intel_finish_reset+0xff/0x170 [i915] [ 232.770465] i915_reset_device+0x208/0x260 [i915] [ 232.770500] ? gen8_gt_irq_ack+0x170/0x170 [i915] [ 232.770515] ? work_on_cpu_safe+0x60/0x60 [ 232.770558] i915_handle_error+0x2d8/0x430 [i915] [ 232.770573] ? vsnprintf+0xd1/0x4b0 [ 232.770587] ? scnprintf+0x3a/0x70 [ 232.770633] hangcheck_declare_hang+0xd3/0xf0 [i915] [ 232.770671] ? intel_runtime_pm_put+0x56/0xa0 [i915] [ 232.770712] i915_hangcheck_elapsed+0x262/0x2d0 [i915] [ 232.770728] process_one_work+0x233/0x660 [ 232.770743] worker_thread+0x4e/0x3b0 [ 232.770757] kthread+0x152/0x190 [ 232.770765] ? process_one_work+0x660/0x660 [ 232.770774] ? kthread_create_on_node+0x40/0x40 [ 232.770783] ? kthread_create_on_node+0x40/0x40 [ 232.770793] ret_from_fork+0x27/0x40 [ 232.770811] Code: 01 75 31 84 db 75 2d 45 84 ed 48 c7 c0 46 28 48 a0 48 c7 c6 3c 28 48 a0 48 0f 44 f0 44 89 e2 48 c7 c7 4f 28 48 a0 e8 7a 8d d2 e0 <0f> ff 83 2d 34 e8 0f 00 01 5b 41 5c 41 5d 5d c3 66 0f 1f 84 00 [ 232.771254] ---[ end trace bcd307d845463039 ]--- [ 244.191988] asynchronous wait on fence i915:[global]:829c timed out [ 244.299396] Setting dangerous option force_reset_modeset_test - tainting kernel [ 244.300030] Setting dangerous option reset - tainting kernel
*** This bug has been marked as a duplicate of bug 102249 ***
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