amdgpu: Reproducible soft lockups when playing games

Marcus Rückert amd at nordisch.org
Mon May 12 12:03:18 UTC 2025 

I had another flip_done hang. even with RADV_DEBUG that didnt result in much extra details.

The crash details are below. What I am curious about ... currently I am testing if i can also reproduce those flip_done hangs with a single monitor only

I had one browser window open with twitch, which was in the background. And another browser window where i was looking something up for a friend.

I seriously wonder if the different framerates of the monitor (144Hz vs 480Hz) could have an affect here that could trigger the issue?
Or could this be a bug related to video in a browser? (vivaldi-stable if that matters)
  
crash details:
[Sun May 11 02:29:37 2025] [  T30868] amdgpu 0000:03:00.0: [drm] *ERROR* [CRTC:85:crtc-0] flip_done timed out

nothing happened here until i logged in via ssh. issued a chvt 1 - which took 24s to do something.

[Sun May 11 02:41:10 2025] [   T1915] amdgpu 0000:03:00.0: [drm] *ERROR* flip_done timed out
[Sun May 11 02:41:10 2025] [   T1915] amdgpu 0000:03:00.0: [drm] *ERROR* [CRTC:85:crtc-0] commit wait timed out
[Sun May 11 02:41:20 2025] [   T1915] amdgpu 0000:03:00.0: [drm] *ERROR* flip_done timed out
[Sun May 11 02:41:20 2025] [   T1915] amdgpu 0000:03:00.0: [drm] *ERROR* [PLANE:82:plane-7] commit wait timed out
[Sun May 11 02:41:20 2025] [   T1915] ------------[ cut here ]------------
[Sun May 11 02:41:20 2025] [   T1915] WARNING: CPU: 28 PID: 1915 at drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8928 amdgpu_dm_atomic_commit_tail+0x3c54/0x3d10 [amdgpu]
[Sun May 11 02:41:20 2025] [   T1915] Modules linked in: overlay binfmt_misc nft_masq nft_chain_nat nf_nat nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nf_log_syslog nft_log nft_limit nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 af_packet snd_seq_dummy snd_hrtimer snd_seq wireguard curve25519_x86_64 libcurve25519_generic ip6_udp_tunnel udp_tunnel cfg80211 ext4 mbcache jbd2 nls_iso8859_1 nls_cp437 xfs vfat fat amd_atl intel_rapl_msr intel_rapl_common snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_usb_audio snd_intel_sdw_acpi snd_usbmidi_lib snd_hda_codec snd_ump edac_mce_amd snd_hda_core snd_rawmidi eeepc_wmi snd_hwdep snd_seq_device snd_pcm spd5118 asus_wmi kvm_amd snd_timer platform_profile raid1 snd battery i2c_piix4 sparse_keymap kvm atlantic md_mod mc cdc_acm thunderbolt gpio_amdpt joydev soundcore rfkill k10temp igc i2c_smbus irqbypass macsec pcspkr wmi_bmof tiny_power_button amd_3d_vcache gpio_generic button acpi_pad nvme_fabrics loop fuse efi_pstore configfs ip_tables x_tables hid_generic amdgpu dm_crypt essiv
[Sun May 11 02:41:20 2025] [   T1915]  authenc trusted crc16 usbhid asn1_encoder amdxcp tee i2c_algo_bit ahci drm_ttm_helper libahci polyval_clmulni ttm libata polyval_generic drm_exec sd_mod ghash_clmulni_intel gpu_sched scsi_dh_emc sha512_ssse3 drm_suballoc_helper scsi_dh_rdac sha256_ssse3 drm_panel_backlight_quirks sha1_ssse3 scsi_dh_alua drm_buddy nvme aesni_intel sg drm_display_helper xhci_pci ucsi_acpi nvme_core crypto_simd scsi_mod cec xhci_hcd typec_ucsi nvme_keyring video cryptd scsi_common rc_core roles usbcore ccp sp5100_tco nvme_auth wmi typec btrfs blake2b_generic xor raid6_pq dm_mod br_netfilter bridge stp llc nf_tables ntsync msr nfnetlink efivarfs dmi_sysfs
[Sun May 11 02:41:20 2025] [   T1915] CPU: 28 UID: 0 PID: 1915 Comm: systemd-logind Not tainted 6.15.0-rc5-2.g1950b5b-default #1 PREEMPT(voluntary) openSUSE Tumbleweed (unreleased)  d44620964e89a2d766559e3bdc0fcb5e11898016
[Sun May 11 02:41:20 2025] [   T1915] Hardware name: ASUS System Product Name/ProArt X870E-CREATOR WIFI, BIOS 1303 04/28/2025
[Sun May 11 02:41:20 2025] [   T1915] RIP: 0010:amdgpu_dm_atomic_commit_tail+0x3c54/0x3d10 [amdgpu]
[Sun May 11 02:41:20 2025] [   T1915] Code: c6 85 30 fe ff ff 00 48 89 85 40 fe ff ff e9 e9 c9 ff ff 0f 0b e9 f1 f2 ff ff 0f 0b 31 f6 e9 46 c9 ff ff 0f 0b e9 14 ca ff ff <0f> 0b e9 f9 f2 ff ff 48 c7 85 20 fe ff ff 00 00 00 00 48 c7 85 f8
[Sun May 11 02:41:20 2025] [   T1915] RSP: 0018:ffffd171c26276e8 EFLAGS: 00010086
[Sun May 11 02:41:20 2025] [   T1915] RAX: 0000000000000001 RBX: 0000000000000286 RCX: ffff8e625d31f118
[Sun May 11 02:41:20 2025] [   T1915] RDX: 0000000000000001 RSI: 0000000000000297 RDI: ffff8e6263580178
[Sun May 11 02:41:20 2025] [   T1915] RBP: ffffd171c2627938 R08: ffffd171c26275dc R09: 0000000000000000
[Sun May 11 02:41:20 2025] [   T1915] R10: ffffd171c2627640 R11: ffffd171c2627644 R12: 0000000000000000
[Sun May 11 02:41:20 2025] [   T1915] R13: 0000000000000001 R14: ffff8e62528bc600 R15: ffff8e625d31f000
[Sun May 11 02:41:20 2025] [   T1915] FS:  00007fa05523f9c0(0000) GS:ffff8e71dedb0000(0000) knlGS:0000000000000000
[Sun May 11 02:41:20 2025] [   T1915] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[Sun May 11 02:41:20 2025] [   T1915] CR2: 00007fc0740bb000 CR3: 00000001554e9000 CR4: 0000000000f50ef0
[Sun May 11 02:41:20 2025] [   T1915] PKRU: 55555554
[Sun May 11 02:41:20 2025] [   T1915] Call Trace:
[Sun May 11 02:41:20 2025] [   T1915]  <TASK>
[Sun May 11 02:41:20 2025] [   T1915]  commit_tail+0x91/0x130
[Sun May 11 02:41:20 2025] [   T1915]  drm_atomic_helper_commit+0x11a/0x140
[Sun May 11 02:41:20 2025] [   T1915]  drm_atomic_commit+0xae/0xe0
[Sun May 11 02:41:20 2025] [   T1915]  ? __pfx___drm_printfn_info+0x10/0x10
[Sun May 11 02:41:20 2025] [   T1915]  drm_client_modeset_commit_atomic+0x1e0/0x220
[Sun May 11 02:41:20 2025] [   T1915]  drm_client_modeset_commit_locked+0x5a/0x160
[Sun May 11 02:41:20 2025] [   T1915]  ? timerqueue_del+0x2e/0x50
[Sun May 11 02:41:20 2025] [   T1915]  __drm_fb_helper_restore_fbdev_mode_unlocked+0x5e/0xd0
[Sun May 11 02:41:20 2025] [   T1915]  drm_fb_helper_set_par+0x30/0x40
[Sun May 11 02:41:20 2025] [   T1915]  fb_set_var+0x22e/0x410
[Sun May 11 02:41:20 2025] [   T1915]  ? update_load_avg+0x80/0x770
[Sun May 11 02:41:20 2025] [   T1915]  ? update_curr+0x1dc/0x260
[Sun May 11 02:41:20 2025] [   T1915]  ? place_entity+0x1b/0x130
[Sun May 11 02:41:20 2025] [   T1915]  ? pick_eevdf+0x15d/0x190
[Sun May 11 02:41:20 2025] [   T1915]  ? update_curr+0x35/0x260
[Sun May 11 02:41:20 2025] [   T1915]  ? update_load_avg+0x80/0x770
[Sun May 11 02:41:20 2025] [   T1915]  fbcon_blank+0x26f/0x330
[Sun May 11 02:41:20 2025] [   T1915]  do_unblank_screen+0xad/0x150
[Sun May 11 02:41:20 2025] [   T1915]  complete_change_console+0x54/0x120
[Sun May 11 02:41:20 2025] [   T1915]  vt_ioctl+0xe55/0x12e0
[Sun May 11 02:41:20 2025] [   T1915]  ? do_syscall_64+0x8e/0x830
[Sun May 11 02:41:20 2025] [   T1915]  ? __wake_up+0x44/0x60
[Sun May 11 02:41:20 2025] [   T1915]  ? evdev_do_ioctl+0x4e0/0xb50
[Sun May 11 02:41:20 2025] [   T1915]  tty_ioctl+0xe8/0x880
[Sun May 11 02:41:20 2025] [   T1915]  ? __seccomp_filter+0x37/0x4f0
[Sun May 11 02:41:20 2025] [   T1915]  __x64_sys_ioctl+0x94/0xc0
[Sun May 11 02:41:20 2025] [   T1915]  do_syscall_64+0x82/0x830
[Sun May 11 02:41:20 2025] [   T1915]  ? do_syscall_64+0x8e/0x830
[Sun May 11 02:41:20 2025] [   T1915]  entry_SYSCALL_64_after_hwframe+0x76/0x7e
[Sun May 11 02:41:20 2025] [   T1915] RIP: 0033:0x7fa05511916f
[Sun May 11 02:41:20 2025] [   T1915] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 18 48 8b 44 24 18 64 48 2b 04 25 28 00 00
[Sun May 11 02:41:20 2025] [   T1915] RSP: 002b:00007ffd5df8d590 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[Sun May 11 02:41:20 2025] [   T1915] RAX: ffffffffffffffda RBX: 0000000000000021 RCX: 00007fa05511916f
[Sun May 11 02:41:20 2025] [   T1915] RDX: 0000000000000001 RSI: 0000000000005605 RDI: 0000000000000021
[Sun May 11 02:41:20 2025] [   T1915] RBP: 0000000000000000 R08: 00007ffd5df8d580 R09: 000055a2d16e4cb0
[Sun May 11 02:41:20 2025] [   T1915] R10: 00007ffd5df8d5d0 R11: 0000000000000246 R12: 00007ffd5df8d670
[Sun May 11 02:41:20 2025] [   T1915] R13: 00007ffd5df8d668 R14: 000055a2d16e3c70 R15: 0000000000000006
[Sun May 11 02:41:20 2025] [   T1915]  </TASK>
[Sun May 11 02:41:20 2025] [   T1915] ---[ end trace 0000000000000000 ]---

```
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