Few tests - incomplete - drm_WARN_ON(!intel_irqs_enabled(dev_priv)), WARNING: .* at drivers/gpu/drm/i915/i915_irq.c:\d+ bdw_update_pipe_irq
<4> [152.521900] ------------[ cut here ]------------
<4> [152.522037] i915 0000:00:02.0: drm_WARN_ON(!intel_irqs_enabled(dev_priv))
<4> [152.522118] WARNING: CPU: 0 PID: 768 at drivers/gpu/drm/i915/i915_irq.c:443 bdw_update_pipe_irq+0xc5/0x130 [i915]
<4> [152.522526] Modules linked in: amdgpu drm_ttm_helper gpu_sched snd_hda_codec_hdmi i915 mei_hdcp smsc75xx usbnet mii x86_pkg_temp_thermal snd_hda_intel snd_intel_dspcfg drm_buddy coretemp ttm snd_hda_codec crct10dif_pclmul drm_dp_helper snd_hwdep crc32_pclmul ghash_clmulni_intel drm_kms_helper snd_hda_core e1000e syscopyarea mei_me sysfillrect ptp snd_pcm sysimgblt pps_core mei fb_sys_fops prime_numbers intel_lpss_pci
<4> [152.522785] CPU: 0 PID: 768 Comm: kworker/0:3 Not tainted 5.17.0-rc3-CI-CI_DRM_11223+ #1
<4> [152.522799] Hardware name: Intel Corporation Alder Lake Client Platform/AlderLake-P LP5 RVP, BIOS ADLPFWI1.R00.2313.A00.2107301001 07/30/2021
<4> [152.522809] Workqueue: events_long drm_dp_mst_link_probe_work [drm_dp_helper]
<4> [152.522846] RIP: 0010:bdw_update_pipe_irq+0xc5/0x130 [i915]
<4> [152.523237] Code: 48 8b 5f 50 48 85 db 75 03 48 8b 1f e8 94 8f 3a e1 48 c7 c1 b0 d2 5d a0 48 89 da 48 c7 c7 ff 28 63 a0 48 89 c6 e8 12 e8 71 e1 <0f> 0b 5b 5d 41 5c 41 5d 41 5e c3 48 8d bf 38 8c 00 00 be ff ff ff
<4> [152.523248] RSP: 0018:ffffc90001223788 EFLAGS: 00010082
<4> [152.523264] RAX: 0000000000000000 RBX: ffff888103712f80 RCX: 0000000000000002
<4> [152.523274] RDX: 0000000080000002 RSI: ffffffff8231233d RDI: 00000000ffffffff
<4> [152.523282] RBP: 0000000000000000 R08: ffff888135bd8b58 R09: 00000000fffffffe
<4> [152.523290] R10: 00000000b82ec9bf R11: 00000000ce5dc9ea R12: 0000000080600000
<4> [152.523298] R13: ffff888134d10000 R14: 0000000000000296 R15: 0000000080600000
<4> [152.523307] FS: 0000000000000000(0000) GS:ffff8882a6e00000(0000) knlGS:0000000000000000
<4> [152.523317] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [152.523326] CR2: 0000562fb438fb98 CR3: 0000000006612004 CR4: 0000000000770ef0
<4> [152.523335] PKRU: 55555554
<4> [152.523342] Call Trace:
<4> [152.523351] <TASK>
<4> [152.523386] intel_set_cpu_fifo_underrun_reporting+0x138/0x330 [i915]
<4> [152.523907] intel_ddi_pre_enable+0x41/0x890 [i915]
<4> [152.524414] intel_mst_pre_enable_dp+0x114/0x200 [i915]
<4> [152.524897] intel_encoders_pre_enable+0x76/0x90 [i915]
<4> [152.525332] hsw_crtc_enable+0x94/0x640 [i915]
<4> [152.525792] intel_enable_crtc+0x55/0x70 [i915]
<4> [152.526212] skl_commit_modeset_enables+0x31b/0x4d0 [i915]
<4> [152.526627] ? __mutex_unlock_slowpath+0x3e/0x2b0
<4> [152.526675] intel_atomic_commit_tail+0x6b6/0x1870 [i915]
<4> [152.527135] intel_atomic_commit+0x363/0x3e0 [i915]
<4> [152.527523] drm_client_modeset_commit_atomic+0x22b/0x270
<4> [152.527637] drm_client_modeset_commit_locked+0x52/0x180
<4> [152.527666] drm_client_modeset_commit+0x1c/0x40
<4> [152.527684] __drm_fb_helper_restore_fbdev_mode_unlocked+0x88/0xb0 [drm_kms_helper]
<4> [152.527732] drm_fb_helper_set_par+0x34/0x40 [drm_kms_helper]
<4> [152.527768] intel_fbdev_set_par+0x11/0x40 [i915]
<4> [152.528138] ? con_is_visible+0x22/0x30
<4> [152.528153] fbcon_init+0x286/0x510
<4> [152.528195] visual_init+0xc6/0x130
<4> [152.528214] do_bind_con_driver+0x1e5/0x2d0
<4> [152.528262] do_take_over_console+0x10e/0x180
<4> [152.528294] do_fbcon_takeover+0x53/0xb0
<4> [152.528304] register_framebuffer+0x22d/0x310
<4> [152.528357] __drm_fb_helper_initial_config_and_unlock+0x37a/0x570 [drm_kms_helper]
<4> [152.528437] drm_kms_helper_hotplug_event+0x1e/0x30 [drm_kms_helper]
<4> [152.528471] process_one_work+0x272/0x5c0
<4> [152.528530] worker_thread+0x37/0x370
<4> [152.528555] ? process_one_work+0x5c0/0x5c0
<4> [152.528566] kthread+0xed/0x120
<4> [152.528574] ? kthread_complete_and_exit+0x20/0x20
<4> [152.528599] ret_from_fork+0x1f/0x30
<4> [152.528680] </TASK>
<4> [152.528686] irq event stamp: 26868
<4> [152.528691] hardirqs last enabled at (26867): [<ffffffff81133be9>] vprintk_emit+0x309/0x330
<4> [152.528704] hardirqs last disabled at (26868): [<ffffffff81aefa57>] _raw_spin_lock_irqsave+0x47/0x50
<4> [152.528713] softirqs last enabled at (26182): [<ffffffff81e0032d>] __do_softirq+0x32d/0x493
<4> [152.528724] softirqs last disabled at (26175): [<ffffffff810b90a6>] irq_exit_rcu+0xa6/0xe0
<4> [152.528733] ---[ end trace 0000000000000000 ]---Edited by Tejasree Illipilli