Created attachment 116546 [details] dmesg info on stable v4.0.4 ==System Environment== ----------------------------------------------------- Regression: Yes Non-working platforms: BDW ==Kernel== -------------------------------------------------- Kernel: stable v4.0.4 kernel: drm-intel-fixes_245ec9 commit 245ec9d85696c3e539b23e210f248698b478379c Author: Jani Nikula <jani.nikula@intel.com> Date: Mon Jun 15 12:59:37 2015 +0300 Revert "drm/i915: Don't skip request retirement if the active list is empty" This reverts commit 0aedb1626566efd72b369c01992ee7413c82a0c5. ==Bug detailed description== -------------------------------------------------- Mplayer xv texture causes *ERROR* Unclaimed register detected on stable v4.0.4 kernel, It does not exists on the latest drm-intel-nightly branch kernel. It causes Call trace on latest drm-intel-fixes branch kernel. Stable v4.0.4 output info: [drm:hsw_unclaimed_reg_detect.isra.8 [i915]] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem.[drm:hsw_unclaimed_reg_detect.isra.8 [i915]] *ERROR* Unclaimed register detected. Please use the i915.mmio_debug=1 to debug this problem. Latest fixes kernel output info: --------------------------------------------------------- [ 269.056863] ------------[ cut here ]------------ [ 269.056898] WARNING: CPU: 0 PID: 0 at drivers/gpu/drm/i915/intel_uncore.c:566 hsw_unclaimed_reg_debug.isra.8+0x62/0x78 [i915]() [ 269.056900] Unclaimed register detected before reading register 0x44200 [ 269.056901] Modules linked in: dm_mod iTCO_wdt iTCO_vendor_support ppdev snd_hda_codec_hdmi pcspkr snd_hda_intel snd_hda_controller snd_hda_codec i2c_i801 snd_hda_core snd_hwdep snd_pcm lpc_ich mfd_core snd_timer snd soundcore battery parport_pc parport ac acpi_cpufreq joydev i915 button video drm_kms_helper drm [ 269.056915] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.1.0-rc8_drm-intel-fixes_245ec9_20150616+ #1504 [ 269.056917] 0000000000000000 0000000000000009 ffffffff817a74cc ffff88014ec03dc8 [ 269.056920] ffffffff8103ebde ffff88014a004960 ffffffffa00bddfe ffff88014a004980 [ 269.056922] ffff8801445b0068 0000000000044200 ffff8801445b0070 ffff8801445b0068 [ 269.056924] Call Trace: [ 269.056925] <IRQ> [<ffffffff817a74cc>] ? dump_stack+0x40/0x50 [ 269.056932] [<ffffffff8103ebde>] ? warn_slowpath_common+0x98/0xb0 [ 269.056945] [<ffffffffa00bddfe>] ? hsw_unclaimed_reg_debug.isra.8+0x62/0x78 [i915] [ 269.056947] [<ffffffff8103ec3b>] ? warn_slowpath_fmt+0x45/0x4a [ 269.056950] [<ffffffff8106005f>] ? select_task_rq_fair+0x231/0x59d [ 269.056962] [<ffffffffa00bddfe>] ? hsw_unclaimed_reg_debug.isra.8+0x62/0x78 [i915] [ 269.056972] [<ffffffffa00bdfbf>] ? gen6_read32+0x49/0x163 [i915] [ 269.056985] [<ffffffffa00ac286>] ? gen8_irq_handler+0x4b/0x345 [i915] [ 269.056988] [<ffffffff81075e94>] ? handle_irq_event_percpu+0x34/0x15b [ 269.056991] [<ffffffff810862c3>] ? update_wall_time+0x52b/0x544 [ 269.056993] [<ffffffff81075fe9>] ? handle_irq_event+0x2e/0x4d [ 269.056995] [<ffffffff81078648>] ? handle_edge_irq+0xba/0xcf [ 269.056998] [<ffffffff810041b5>] ? handle_irq+0x15/0x20 [ 269.057000] [<ffffffff81003c78>] ? do_IRQ+0x41/0xc0 [ 269.057002] [<ffffffff817adaeb>] ? common_interrupt+0x6b/0x6b [ 269.057003] <EOI> [<ffffffff816be8a9>] ? cpuidle_enter_state+0xd4/0x188 [ 269.057009] [<ffffffff816be855>] ? cpuidle_enter_state+0x80/0x188 [ 269.057011] [<ffffffff81069588>] ? cpu_startup_entry+0x204/0x31c [ 269.057014] [<ffffffff81c99e1c>] ? start_kernel+0x413/0x41e [ 269.057017] [<ffffffff81c99813>] ? set_init_arg+0x4e/0x4e [ 269.057019] ---[ end trace 108f4de1dece6be6 ]--- ==Reproduce steps== ---------------------------- 1, xinit& 2, mplayer -vo xv:adaptor=0 xxx
Created attachment 116547 [details] dmesg info with the fixes kernel
Created attachment 116548 [details] Xorg.0.log info
The same error is in 4.0.4, just not as verbose and continuously repeated.
It also causes Call trace on the latest drm-intel-next-queued branch kernel as same as the latest drm-intel-fixes branch kernel.
It still causes *ERROR* on v3.19.2 and 3.17.0-rc7_drm-intel-fixes_91e564_20141005 kernel.
Presumed fixed on latest nightly.
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