[Bug 106544] Boot error: gpu/drm/amd/amdgpu/../display/dc/dm_services.h:132 generic_reg_update_ex+0x108/0x150 [amdgpu] dce110_stream_encoder_update_hdmi_info_packets+0x20e/0x3a0 [amdgpu]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=106544

--- Comment #7 from Andrei Slavoiu <ansla80 at yahoo.com> ---
I've encountered this with an RX 480 connected via DisplayPort as well:
[55207.637429] WARNING: CPU: 3 PID: 2125 at
drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services.h:132
generic_reg_update_ex+0x102/0x148
[55207.637431] Modules linked in: sr_mod cdrom
[55207.637437] CPU: 3 PID: 2125 Comm: X Tainted: G        W        
4.17.2-gentoo #2
[55207.637438] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./FM2A88X Extreme6+, BIOS P4.20 01/13/2016
[55207.637440] RIP: 0010:generic_reg_update_ex+0x102/0x148
[55207.637440] RSP: 0018:ffffc90002ba3890 EFLAGS: 00010246
[55207.637442] RAX: ffffc90002ba38b0 RBX: ffff88043c4a8040 RCX:
0000000000000000
[55207.637442] RDX: 0000000000000000 RSI: 0000000000000000 RDI:
ffff88043ca5a880
[55207.637443] RBP: ffffc90002ba3900 R08: 0000000000000000 R09:
0000000000000000
[55207.637444] R10: ffffc90002ba3918 R11: 0000000000000001 R12:
0000000000000001
[55207.637444] R13: 0000000000000000 R14: ffff88043caec000 R15:
ffff88010b0f4188
[55207.637445] FS:  00007fc777d7b900(0000) GS:ffff88044ed80000(0000)
knlGS:0000000000000000
[55207.637446] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[55207.637447] CR2: 00007fbdd0660a10 CR3: 0000000427b0c000 CR4:
00000000000406e0
[55207.637448] Call Trace:
[55207.637453]  dce110_stream_encoder_update_hdmi_info_packets+0x36f/0x590
[55207.637456]  dce110_apply_ctx_to_hw+0x76e/0x8f8
[55207.637458]  ? dc_commit_state+0x32d/0x5c8
[55207.637460]  ? set_freesync_on_streams.part.6+0x48/0x240
[55207.637461]  ? mod_freesync_set_user_enable+0x119/0x150
[55207.637464]  ? amdgpu_dm_atomic_commit_tail+0x34b/0xce0
[55207.637467]  ? _cond_resched+0x10/0x38
[55207.637468]  ? wait_for_completion_timeout+0x35/0x180
[55207.637469]  ? wait_for_completion_interruptible+0x30/0x1a0
[55207.637472]  ? commit_tail+0x38/0x68
[55207.637473]  ? drm_atomic_helper_commit+0xf7/0x100
[55207.637474]  ? drm_atomic_helper_set_config+0x72/0x80
[55207.637477]  ? __drm_mode_set_config_internal+0x62/0x110
[55207.637478]  ? drm_mode_setcrtc+0x3ee/0x578
[55207.637480]  ? drm_crtc_check_viewport+0xa8/0xa8
[55207.637481]  ? drm_ioctl_kernel+0x56/0xa8
[55207.637483]  ? drm_ioctl+0x2a0/0x340
[55207.637484]  ? drm_crtc_check_viewport+0xa8/0xa8
[55207.637486]  ? amdgpu_drm_ioctl+0x44/0x78
[55207.637489]  ? do_vfs_ioctl+0x9f/0x610
[55207.637492]  ? __sys_recvmsg+0x7e/0x98
[55207.637493]  ? ksys_ioctl+0x35/0x60
[55207.637495]  ? __x64_sys_ioctl+0x11/0x18
[55207.637497]  ? do_syscall_64+0x50/0x150
[55207.637500]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[55207.637500] Code: 48 8b 40 08 e8 a0 1f 71 00 48 8b 75 a8 65 48 33 34 25 28
00 00 00 89 d8 75 18 48 83 c4 50 5b 41 5a 41 5c 41 5d 5d c3 0f 0b eb b4 <0f> 0b
e9 43 ff ff ff e8 9a 0f 9c ff 41 ba 01 00 00 00 44 89 c0
[55207.637521] ---[ end trace b2eb025a41b6045f ]---

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