Created attachment 125698 [details] dmesg [39910.313263] ------------[ cut here ]------------ [39910.313270] WARNING: CPU: 6 PID: 464 at drivers/gpu/drm/i915/intel_display.c:14110 skl_max_scale.part.120+0x6c/0x80 [39910.313271] WARN_ON_ONCE(!crtc_clock || cdclk < crtc_clock) [39910.313272] Modules linked in: [39910.313274] CPU: 6 PID: 464 Comm: X Tainted: G W 4.8.0-rc1-agd5f+ #20 [39910.313275] Hardware name: Alienware Alienware 15 R2/Alienware 15 R2, BIOS 1.2.8 01/29/2016 [39910.313278] 0000000000000000 ffffffff8134fc4c ffff8804a20339f8 0000000000000000 [39910.313280] ffffffff8108e809 ffff8804ad7ec000 ffff8804a2033a48 ffff8804c3726000 [39910.313282] 0000000000000000 ffff8804ad7ec000 ffff8804b2066c00 ffffffff8108e87a [39910.313282] Call Trace: [39910.313287] [<ffffffff8134fc4c>] ? dump_stack+0x46/0x5a [39910.313290] [<ffffffff8108e809>] ? __warn+0xb9/0xe0 [39910.313291] [<ffffffff8108e87a>] ? warn_slowpath_fmt+0x4a/0x50 [39910.313295] [<ffffffff81450158>] ? drm_atomic_helper_normalize_zpos+0x248/0x2e0 [39910.313297] [<ffffffff8158e35c>] ? skl_max_scale.part.120+0x6c/0x80 [39910.313299] [<ffffffff8158e42b>] ? intel_check_primary_plane+0xbb/0xd0 [39910.313301] [<ffffffff81450158>] ? drm_atomic_helper_normalize_zpos+0x248/0x2e0 [39910.313304] [<ffffffff81580030>] ? intel_plane_atomic_check+0x120/0x1c0 [39910.313307] [<ffffffff8144d368>] ? drm_atomic_helper_check_planes+0x78/0x1e0 [39910.313310] [<ffffffff8159994e>] ? intel_atomic_check+0x14e/0x770 [39910.313313] [<ffffffff811a0cf5>] ? __kmalloc_track_caller+0x25/0x180 [39910.313314] [<ffffffff81470ffc>] ? drm_atomic_check_only+0x17c/0x600 [39910.313317] [<ffffffff8157f9fe>] ? intel_crtc_duplicate_state+0x2e/0x70 [39910.313318] [<ffffffff8147148d>] ? drm_atomic_commit+0xd/0x50 [39910.313321] [<ffffffff8144f3c1>] ? drm_atomic_helper_disable_plane+0xa1/0xe0 [39910.313324] [<ffffffff814611a7>] ? __setplane_internal+0x177/0x280 [39910.313327] [<ffffffff814613c2>] ? drm_mode_cursor_universal+0x112/0x1f0 [39910.313330] [<ffffffff81461513>] ? drm_mode_cursor_common+0x73/0x170 [39910.313331] [<ffffffff8146569f>] ? drm_mode_cursor_ioctl+0x3f/0x50 [39910.313333] [<ffffffff81458a12>] ? drm_ioctl+0x272/0x400 [39910.313334] [<ffffffff81465660>] ? drm_mode_setcrtc+0x530/0x530 [39910.313337] [<ffffffff81019137>] ? do_signal+0x177/0x5b0 [39910.313340] [<ffffffff81024419>] ? __fpu__restore_sig+0x79/0x4c0 [39910.313343] [<ffffffff811cb46b>] ? do_vfs_ioctl+0x8b/0x5c0 [39910.313345] [<ffffffff81099e11>] ? recalc_sigpending+0x11/0x40 [39910.313347] [<ffffffff811d54ab>] ? __fget+0x6b/0xb0 [39910.313349] [<ffffffff811cb9d6>] ? SyS_ioctl+0x36/0x70 [39910.313351] [<ffffffff81001c39>] ? do_syscall_64+0x59/0x140 [39910.313353] [<ffffffff810869bc>] ? entry_SYSCALL64_slow_path+0x25/0x25 [39910.313354] ---[ end trace 3d4f93615b43a667 ]---
And another one [ 1483.773399] ------------[ cut here ]------------ [ 1483.773416] WARNING: CPU: 0 PID: 0 at drivers/gpu/drm/drm_irq.c:1168 page_flip_completed+0x32/0xd0 [ 1483.773418] Modules linked in: [ 1483.773426] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.8.0-rc1-agd5f+ #20 [ 1483.773427] Hardware name: Alienware Alienware 15 R2/Alienware 15 R2, BIOS 1.2.8 01/29/2016 [ 1483.773429] 0000000000000000 ffffffff8134fc4c 0000000000000000 0000000000000000 [ 1483.773433] ffffffff8108e809 ffff8804b2292000 ffff88048b759a80 ffff8804b22a0000 [ 1483.773437] 0000000000000000 0000000080010000 0000000000044408 ffffffff81587ac2 [ 1483.773441] Call Trace: [ 1483.773442] <IRQ> [<ffffffff8134fc4c>] ? dump_stack+0x46/0x5a [ 1483.773450] [<ffffffff8108e809>] ? __warn+0xb9/0xe0 [ 1483.773453] [<ffffffff81587ac2>] ? page_flip_completed+0x32/0xd0 [ 1483.773458] [<ffffffff8159f801>] ? intel_finish_page_flip_mmio+0x61/0x70 [ 1483.773461] [<ffffffff81520bd2>] ? intel_pipe_handle_vblank+0x22/0x30 [ 1483.773464] [<ffffffff815250cb>] ? gen8_irq_handler+0x33b/0x670 [ 1483.773468] [<ffffffff810d4983>] ? __handle_irq_event_percpu+0x73/0x1b0 [ 1483.773471] [<ffffffff810d4adb>] ? handle_irq_event_percpu+0x1b/0x50 [ 1483.773474] [<ffffffff810d4b3f>] ? handle_irq_event+0x2f/0x50 [ 1483.773477] [<ffffffff810d7a2d>] ? handle_edge_irq+0x6d/0x130 [ 1483.773481] [<ffffffff8101b844>] ? handle_irq+0x14/0x20 [ 1483.773484] [<ffffffff8101b101>] ? do_IRQ+0x41/0xd0 [ 1483.773487] [<ffffffff81087249>] ? common_interrupt+0x89/0x89 [ 1483.773490] [<ffffffff810b57eb>] ? idle_cpu+0xb/0x50 [ 1483.773494] [<ffffffff810c298b>] ? find_busiest_group+0x1cb/0x950 [ 1483.773498] [<ffffffff810c3267>] ? load_balance+0x157/0x920 [ 1483.773501] [<ffffffff816ddaaf>] ? synaptics_process_byte+0x4f/0xe0 [ 1483.773504] [<ffffffff810c400f>] ? rebalance_domains+0x14f/0x2a0 [ 1483.773507] [<ffffffff81093a24>] ? __do_softirq+0x104/0x2d0 [ 1483.773511] [<ffffffff81093d20>] ? irq_exit+0x90/0xa0 [ 1483.773514] [<ffffffff81038dac>] ? smp_apic_timer_interrupt+0x3c/0x50 [ 1483.773517] [<ffffffff810874e9>] ? apic_timer_interrupt+0x89/0x90 [ 1483.773518] <EOI> [<ffffffff8173690b>] ? cpuidle_enter_state+0x11b/0x2d0 [ 1483.773525] [<ffffffff817368f4>] ? cpuidle_enter_state+0x104/0x2d0 [ 1483.773528] [<ffffffff810c9b5f>] ? cpu_startup_entry+0x25f/0x300 [ 1483.773532] [<ffffffff82334e7c>] ? start_kernel+0x3b6/0x3be [ 1483.773534] ---[ end trace 3f8a29f25490fc2f ]---
(In reply to Mike Lothian from comment #1) > And another one What do these two have to do with each other?
They were both introduced in this release cycle - I've no idea if they were introduced by the same commit
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