11.217367] ------------[ cut here ]------------ [ 11.217371] vblank wait timed out on crtc 0 [ 11.217385] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x23f449e4925, max_idle_ns: 440795297651 ns [ 11.217426] WARNING: CPU: 2 PID: 7 at drivers/gpu/drm/drm_vblank.c:1130 drm_wait_one_vblank+0x176/0x1a0 [ 11.217427] Modules linked in: [ 11.217437] CPU: 2 PID: 7 Comm: kworker/u16:0 Not tainted 5.6.10-gentoo_intel #1 [ 11.217440] Hardware name: Acer Aspire 3830G/JM30_HR, BIOS V1.12 08/14/2012 [ 11.217450] Workqueue: events_unbound async_run_entry_fn [ 11.217458] RIP: 0010:drm_wait_one_vblank+0x176/0x1a0 [ 11.217465] Code: 0f 0b e9 4c ff ff ff 48 89 e6 4c 89 ff e8 e2 21 a9 ff 45 85 ed 0f 85 2d ff ff ff 44 89 e6 48 c7 c7 70 f8 a5 be e8 c7 d6 a4 ff <0f> 0b e9 17 ff ff ff 0f 0b 31 c0 e9 09 ff ff ff 0f 0b 45 31 f6 e9 [ 11.217468] RSP: 0000:ffffa8f50006b8d8 EFLAGS: 00010286 [ 11.217473] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000001f [ 11.217476] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffffffffbf3f5cd0 [ 11.217480] RBP: ffffa37989870000 R08: 000000029c9b81a5 R09: ffffffffbf3f5cd4 [ 11.217483] R10: 000000000000026a R11: 0000000000033cd8 R12: 0000000000000000 [ 11.217486] R13: 0000000000000000 R14: 000000000000000d R15: ffffa37989861808 [ 11.217491] FS: 0000000000000000(0000) GS:ffffa3798fe80000(0000) knlGS:0000000000000000 [ 11.217495] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.217499] CR2: 0000000000000000 CR3: 0000000243a0a001 CR4: 00000000000606e0 [ 11.217501] Call Trace: [ 11.217516] ? wait_woken+0x70/0x70 [ 11.217525] ilk_crtc_enable+0x4b0/0xc80 [ 11.217534] intel_update_crtc+0x1db/0x200 [ 11.217542] intel_commit_modeset_enables+0x41/0x60 [ 11.217548] intel_atomic_commit_tail+0x2c2/0x1380 [ 11.217558] ? flush_workqueue_prep_pwqs+0x114/0x130 [ 11.217566] ? flush_workqueue+0x18e/0x420 [ 11.217574] intel_atomic_commit+0x2db/0x350 [ 11.217584] drm_client_modeset_commit_atomic+0x1b6/0x1f0 [ 11.217594] drm_client_modeset_commit_force+0x4d/0x150 [ 11.217605] drm_fb_helper_restore_fbdev_mode_unlocked+0x44/0xa0 [ 11.217612] drm_fb_helper_set_par+0x2c/0x40 [ 11.217619] intel_fbdev_set_par+0x19/0x40 [ 11.217627] fbcon_init+0x2a1/0x5e0 [ 11.217638] visual_init+0xc9/0x130 [ 11.217644] do_bind_con_driver+0x1b9/0x2a0 [ 11.217651] do_take_over_console+0x111/0x180 [ 11.217658] do_fbcon_takeover+0x56/0xb0 [ 11.217666] register_framebuffer+0x1df/0x2f0 [ 11.217676] __drm_fb_helper_initial_config_and_unlock+0x32a/0x480 [ 11.217685] intel_fbdev_initial_config+0x12/0x20 [ 11.217691] async_run_entry_fn+0x32/0xe0 [ 11.217699] process_one_work+0x1cc/0x390 [ 11.217707] worker_thread+0x45/0x3b0 [ 11.217715] kthread+0xf8/0x130 [ 11.217722] ? process_one_work+0x390/0x390 [ 11.217727] ? kthread_park+0x80/0x80 [ 11.217735] ret_from_fork+0x35/0x40 [ 11.217743] ---[ end trace 82a3019519d385f3 ]--- Reproducible: Sometimes Steps to Reproduce: 1. emerge gentoo-sources 5.6.4 (AFAIK it happens since 5.6.4 or 5.6.5) 2. boot 3. check dmesg Actual Results: vblank wait timed out Expected Results: no vblank wait time out drivers/gpu/drm/drm_vblank.c
please attach your .config Why do you think this is a Gentoo specific bug?
Created attachment 642318 [details] .config Here it is. BTW, I gave no reason to think, that it is gentoo-specific bug.
Here it is. I gave no reason to think, that it is gentoo-specific bug.
[ 11.215433] ------------[ cut here ]------------ [ 11.215441] vblank wait timed out on crtc 0 [ 11.215446] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x23f45126d86, max_idle_ns: 440795256522 ns [ 11.215475] WARNING: CPU: 4 PID: 95 at drivers/gpu/drm/drm_vblank.c:1130 drm_wait_one_vblank+0x189/0x1b0 [ 11.215477] Modules linked in: [ 11.215483] CPU: 4 PID: 95 Comm: kworker/u16:4 Not tainted 5.6.14-gentoo_intel #1 [ 11.215485] Hardware name: Acer Aspire 3830G/JM30_HR, BIOS V1.12 08/14/2012 [ 11.215491] Workqueue: events_unbound async_run_entry_fn [ 11.215497] RIP: 0010:drm_wait_one_vblank+0x189/0x1b0 [ 11.215502] Code: b8 a5 ff 0f 0b eb cc 48 89 e6 4c 89 ff e8 df ec a9 ff 45 85 ed 0f 85 17 ff ff ff 44 89 e6 48 c7 c7 58 ac a5 b5 e8 3a b8 a5 ff <0f> 0b e9 01 ff ff ff 0f 0b 31 c0 e9 f3 fe ff ff 0f 0b 45 31 f6 e9 [ 11.215504] RSP: 0000:ffffbc3d403578f0 EFLAGS: 00010286 [ 11.215507] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000001f [ 11.215510] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffffffffb632fcd0 [ 11.215513] RBP: ffff9b1949cb0000 R08: 000000029c7e0cd7 R09: ffffffffb632fcd4 [ 11.215515] R10: 000000000000026a R11: 0000000000033cd4 R12: 0000000000000000 [ 11.215517] R13: 0000000000000000 R14: 000000000000000d R15: ffff9b194ce8ec08 [ 11.215521] FS: 0000000000000000(0000) GS:ffff9b194ff00000(0000) knlGS:0000000000000000 [ 11.215524] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.215526] CR2: 0000000000000000 CR3: 00000002e2e0a001 CR4: 00000000000606e0 [ 11.215528] Call Trace: [ 11.215539] ? wait_woken+0x80/0x80 [ 11.215547] ilk_crtc_enable+0x4eb/0xcc0 [ 11.215554] intel_update_crtc+0x1d5/0x1f0 [ 11.215561] intel_commit_modeset_enables+0x41/0x60 [ 11.215566] intel_atomic_commit_tail+0x2ba/0x13b0 [ 11.215572] ? flush_workqueue_prep_pwqs+0x113/0x130 [ 11.215578] ? flush_workqueue+0x170/0x3c0 [ 11.215584] intel_atomic_commit+0x2db/0x350 [ 11.215590] drm_client_modeset_commit_atomic+0x1b9/0x1f0 [ 11.215596] drm_client_modeset_commit_force+0x4f/0x150 [ 11.215603] drm_fb_helper_restore_fbdev_mode_unlocked+0x44/0x90 [ 11.215608] drm_fb_helper_set_par+0x2b/0x40 [ 11.215614] intel_fbdev_set_par+0x11/0x50 [ 11.215621] ? con_is_visible+0x22/0x40 [ 11.215626] fbcon_init+0x2e2/0x680 [ 11.215632] visual_init+0xc9/0x130 [ 11.215638] do_bind_con_driver.isra.0+0x1d5/0x2e0 [ 11.215645] do_take_over_console+0x111/0x180 [ 11.215650] do_fbcon_takeover+0x57/0xc0 [ 11.215656] register_framebuffer+0x1df/0x2f0 [ 11.215662] __drm_fb_helper_initial_config_and_unlock+0x31b/0x490 [ 11.215669] intel_fbdev_initial_config+0xf/0x20 [ 11.215673] async_run_entry_fn+0x32/0xe0 [ 11.215679] process_one_work+0x1cc/0x390 [ 11.215685] worker_thread+0x48/0x3d0 [ 11.215690] ? rescuer_thread+0x3d0/0x3d0 [ 11.215694] kthread+0x113/0x130 [ 11.215699] ? __kthread_bind_mask+0x60/0x60 [ 11.215704] ret_from_fork+0x35/0x40 [ 11.215709] ---[ end trace 7b39b9354e799e53 ]---
