[CI][DRMTIP]Random tests - WARNING: CPU: 1 PID: 988 at drivers/gpu/drm/drm_dp_mst_topology.c:4066 drm_dp_atomic_find_vcpi_slots+0x14d/0x180

Submitted by LAKSHMINARAYANA VUDUM @l4kshmi

Assigned to Intel GFX Bugs mailing list

Link to original bug (#112281)

Description

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_403/fi-kbl-7560u/igt@kms_vblank@pipe-b-ts-continuation-idle-hang.html
<4> [89.254551] WARNING: CPU: 1 PID: 988 at drivers/gpu/drm/drm_dp_mst_topology.c:4066 drm_dp_atomic_find_vcpi_slots+0x14d/0x180
<4> [89.254553] Modules linked in: vgem cdc_ether usbnet r8152 mii mei_hdcp snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic i915 x86_pkg_temp_thermal coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_intel_nhlt snd_hda_codec snd_hwdep snd_hda_core btusb btrtl btbcm btintel snd_pcm bluetooth ecdh_generic ecc mei_me mei prime_numbers i2c_hid pinctrl_sunrisepoint pinctrl_intel thunderbolt
<4> [89.254581] CPU: 1 PID: 988 Comm: kms_vblank Tainted: G U 5.4.0-rc6-g36d31f70111e-drmtip_403+ #1 (moved)
<4> [89.254583] Hardware name: Dell Inc. XPS 13 9360/0823VW, BIOS 2.9.0 07/09/2018
<4> [89.254586] RIP: 0010:drm_dp_atomic_find_vcpi_slots+0x14d/0x180
<4> [89.254588] Code: 6e ff ff ff 49 89 6e 08 4c 89 73 10 4c 89 63 18 49 89 6d 08 e9 59 ff ff ff 41 89 c7 5b 44 89 f8 5d 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b 48 c7 c7 c8 9c 2d a6 48 89 ee 41 bf ea ff ff ff e8 1c d1 02
<4> [89.254589] RSP: 0018:ffffad59402e3a48 EFLAGS: 00010246
<4> [89.254591] RAX: ffff904226a59d70 RBX: ffff904226a59d60 RCX: 0000000000000214
<4> [89.254592] RDX: 0000000000000001 RSI: ffff90422439ac68 RDI: ffff904230a25000
<4> [89.254594] RBP: ffff9042202ec000 R08: 0000000000083d60 R09: 0000000000000000
<4> [89.254596] R10: 0000000000000000 R11: 000000001b5588cb R12: ffff904226a593a8
<4> [89.254598] R13: ffff904226a593a0 R14: 0000000000000214 R15: ffff90422439ac68
<4> [89.254599] FS: 00007f14d6955e40(0000) GS:ffff904236280000(0000) knlGS:0000000000000000
<4> [89.254601] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [89.254603] CR2: 000055d5269ba6e8 CR3: 0000000262072005 CR4: 00000000003606e0
<4> [89.254605] Call Trace:
<4> [89.254658] intel_dp_mst_compute_config+0x167/0x280 [i915]
<4> [89.254714] intel_atomic_check+0x557/0x20b0 [i915]
<4> [89.254735] drm_atomic_check_only+0x563/0x810
<4> [89.254740] ? drm_atomic_set_crtc_for_connector+0xcc/0x100
<4> [89.254750] drm_atomic_commit+0xe/0x50
<4> [89.254754] drm_client_modeset_commit_atomic+0x18b/0x210
<4> [89.254774] drm_client_modeset_commit_force+0x52/0x1a0
<4> [89.254781] drm_fb_helper_restore_fbdev_mode_unlocked+0x42/0x90
<4> [89.254786] drm_fb_helper_set_par+0x24/0x50
<4> [89.254834] intel_fbdev_set_par+0x11/0x30 [i915]
<4> [89.254839] ? con_is_visible+0x25/0x50
<4> [89.254844] fbcon_init+0x37e/0x610
<4> [89.254852] visual_init+0xc9/0x130
<4> [89.254857] do_bind_con_driver+0x200/0x410
<4> [89.254869] store_bind+0x130/0x1a0
<4> [89.254877] kernfs_fop_write+0x104/0x190
<4> [89.254884] vfs_write+0xb9/0x1d0
<4> [89.254892] ksys_write+0x9f/0xe0
<4> [89.254900] do_syscall_64+0x4f/0x210
<4> [89.254905] entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [89.254908] RIP: 0033:0x7f14d5cb7281
<4> [89.254910] Code: c3 0f 1f 84 00 00 00 00 00 48 8b 05 59 8d 20 00 c3 0f 1f 84 00 00 00 00 00 8b 05 8a d1 20 00 85 c0 75 16 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 57 f3 c3 0f 1f 44 00 00 41 54 55 49 89 d4 53
<4> [89.254912] RSP: 002b:00007ffd362d6fc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
<4> [89.254915] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f14d5cb7281
<4> [89.254917] RDX: 0000000000000002 RSI: 00007f14d6345b6f RDI: 0000000000000007
<4> [89.254919] RBP: 00007ffd362d6ff0 R08: 000055d5269b2743 R09: 0000000000000006
<4> [89.254921] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d5269b26b0
<4> [89.254923] R13: 00007f14d6345b8a R14: 00007f14d6345b90 R15: 00007f14d6345b75
<4> [89.254940] irq event stamp: 229430
<4> [89.254944] hardirqs last enabled at (229429): [<ffffffffa512fa65>] vprintk_emit+0x315/0x340
<4> [89.254946] hardirqs last disabled at (229430): [<ffffffffa5001c0a>] trace_hardirqs_off_thunk+0x1a/0x20
<4> [89.254949] softirqs last enabled at (229324): [<ffffffffa5e00385>] __do_softirq+0x385/0x47f
<4> [89.254953] softirqs last disabled at (229315): [<ffffffffa50bca7a>] irq_exit+0xba/0xc0
<4> [89.254955] ---[ end trace 39e7fdda6c33f9af ]---
<3> [89.255063] [drm:drm_dp_atomic_find_vcpi_slots] ERROR cannot allocate and release VCPI on [MST PORT:00000000709791d2] in the same state