<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [SKL]igt/kms_flip fails and causes drivers/gpu/drm/i915/intel_display.c:3612 intel_crtc_wait_for_pending_flips+0xec/0x1ad [i915]()" href="https://bugs.freedesktop.org/show_bug.cgi?id=89127#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - [SKL]igt/kms_flip fails and causes drivers/gpu/drm/i915/intel_display.c:3612 intel_crtc_wait_for_pending_flips+0xec/0x1ad [i915]()" href="https://bugs.freedesktop.org/show_bug.cgi?id=89127">bug 89127</a> from <a class="email" href="mailto:huax.lu@intel.com" title="lu hua <huax.lu@intel.com>"> lu hua</a> <pre>Created <a href="attachment.cgi?id=114181" name="attach_114181" title="dmesg-update">attachment 114181</a> <a href="attachment.cgi?id=114181&action=edit" title="dmesg-update">[details]</a> dmesg-update Test on the latest -nightly kernel. It still has warning. [ 63.539320] ------------[ cut here ]------------ [ 63.539367] WARNING: CPU: 2 PID: 0 at drivers/gpu/drm/i915/intel_display.c:9826 intel_check_page_flip+0xa6/0xc1 [i915]() [ 63.539371] Kicking stuck page flip: queued at 1, now 5 [ 63.539373] Modules linked in: dm_mod ppdev snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm pcspkr i2c_i801 snd_timer snd soundcore wmi battery parport_pc parport ac acpi_cpufreq i915 button video drm_kms_helper drm [ 63.539402] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.0.0-rc3_drm-intel-nightly_c09a3b_20150310+ #104 [ 63.539405] Hardware name: Intel Corporation Skylake Client platform/Skylake Y LPDDR3 RVP3, BIOS SKLSE2R1.86C.B069.R00.1501192136 01/19/2015 [ 63.539408] 0000000000000000 0000000000000009 ffffffff81793a7f ffff88014e483e18 [ 63.539414] ffffffff8103bcf8 ffff880148e479a0 ffffffffa00d12f1 0000000000000002 [ 63.539418] ffff880148e47800 ffff880004c2c000 0000000000000001 0000000000000001 [ 63.539423] Call Trace: [ 63.539426] <IRQ> [<ffffffff81793a7f>] ? dump_stack+0x40/0x50 [ 63.539443] [<ffffffff8103bcf8>] ? warn_slowpath_common+0x98/0xb0 [ 63.539469] [<ffffffffa00d12f1>] ? intel_check_page_flip+0xa6/0xc1 [i915] [ 63.539476] [<ffffffff8103bd55>] ? warn_slowpath_fmt+0x45/0x4a [ 63.539504] [<ffffffffa00c1b6d>] ? __intel_pageflip_stall_check+0xaf/0xd8 [i915] [ 63.539529] [<ffffffffa00d12f1>] ? intel_check_page_flip+0xa6/0xc1 [i915] [ 63.539557] [<ffffffffa00a8e3a>] ? gen8_irq_handler+0x1fb/0x345 [i915] [ 63.539563] [<ffffffff81071c70>] ? handle_irq_event_percpu+0x34/0x15b [ 63.539569] [<ffffffff81081e69>] ? update_wall_time+0x524/0x53d [ 63.539573] [<ffffffff81071dc5>] ? handle_irq_event+0x2e/0x4c [ 63.539578] [<ffffffff8107430e>] ? handle_edge_irq+0xba/0xcf [ 63.539583] [<ffffffff81004313>] ? handle_irq+0x15/0x1d [ 63.539588] [<ffffffff81003dd7>] ? do_IRQ+0x41/0xc0 [ 63.539593] [<ffffffff81799daa>] ? common_interrupt+0x6a/0x6a [ 63.539595] <EOI> [<ffffffff816acead>] ? cpuidle_enter_state+0x71/0x11e [ 63.539608] [<ffffffff816ace91>] ? cpuidle_enter_state+0x55/0x11e [ 63.539616] [<ffffffff8106526b>] ? cpu_startup_entry+0x1f7/0x34d [ 63.539620] ---[ end trace 0d2c93c119121b88 ]---</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>