[Bug 109628] WARNING at dcn10_hw_sequencer.c:868 dcn10_verify_allow_pstate_change_high()

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sun Oct 6 19:38:26 UTC 2019


https://bugs.freedesktop.org/show_bug.cgi?id=109628

--- Comment #26 from Mirek Kratochvil <exa.exa at gmail.com> ---
Hello everyone,

reporting the same on thinkpad E585; blackscreen issue is triggered by starting
X with compositor (lightdm works okay though).

Attaching my warning + backtrace + TEST_DEBUG_DATA from debian kernel, just for
completeness. (I also tried 5.3 kernel with basically same result)

[   12.766637] [drm] pstate TEST_DEBUG_DATA: 0x37F60000
[   12.766640] ------------[ cut here ]------------
[   12.766844] WARNING: CPU: 5 PID: 1474 at
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:854
dcn10_verify_allow_pstate_change_high+0x30/0x40 [amdgpu]
[   12.766845] Modules linked in: psnap llc overlay snd_hrtimer snd_seq
snd_seq_device cpufreq_userspace cpufreq_powersave cpufreq_conservative arc4
uinput edac_mce_amd kvm_amd ccp rng_core kvm irqbypass crct10dif_pclmul
crc32_pclmul binfmt_misc ghash_clmulni_intel nls_ascii nls_cp437 vfat fat btusb
btrtl btbcm btintel aesni_intel bluetooth efi_pstore aes_x86_64 crypto_simd
cryptd glue_helper ath10k_pci ath10k_core uvcvideo videobuf2_vmalloc ath
videobuf2_memops joydev drbg videobuf2_v4l2 efivars videobuf2_common serio_raw
mac80211 videodev snd_hda_codec_conexant snd_hda_codec_generic
snd_hda_codec_hdmi media wmi_bmof ansi_cprng sp5100_tco ecdh_generic
snd_hda_intel k10temp ecc crc16 sg snd_hda_codec watchdog cfg80211 snd_hda_core
snd_hwdep snd_pcm snd_timer thinkpad_acpi nvram ledtrig_audio snd ucsi_acpi
typec_ucsi soundcore typec rfkill battery ac evdev pcc_cpufreq acpi_cpufreq
loop parport_pc ppdev lp parport efivarfs ip_tables x_tables autofs4 xfs
libcrc32c crc32c_generic sd_mod amdgpu
[   12.766899]  gpu_sched i2c_algo_bit ttm ahci libahci drm_kms_helper xhci_pci
libata xhci_hcd crc32c_intel psmouse drm sdhci_pci scsi_mod usbcore cqhci sdhci
r8169 i2c_piix4 mmc_core nvme usb_common realtek mfd_core libphy nvme_core wmi
video i2c_scmi button
[   12.766925] CPU: 5 PID: 1474 Comm: Xorg Not tainted 5.2.0-3-amd64 #1 Debian
5.2.17-1
[   12.766926] Hardware name: LENOVO 20KV000DMC/20KV000DMC, BIOS R0UET74W (1.54
) 07/23/2019
[   12.767051] RIP: 0010:dcn10_verify_allow_pstate_change_high+0x30/0x40
[amdgpu]
[   12.767054] Code: 53 48 8b 87 80 02 00 00 48 89 fb 48 8b b8 b0 01 00 00 e8
63 21 01 00 84 c0 74 03 5b 5d c3 48 c7 c7 38 f8 81 c0 e8 ce 9c 1c d6 <0f> 0b 80
bb 93 01 00 00 00 74 e6 e9 1c 23 06 00 0f 1f 44 00 00 41
[   12.767056] RSP: 0018:ffffb890425bb7d0 EFLAGS: 00010246
[   12.767059] RAX: 0000000000000024 RBX: ffff9cd1aee06000 RCX:
0000000000000006
[   12.767061] RDX: 0000000000000000 RSI: 0000000000000082 RDI:
ffff9cd1bef57680
[   12.767062] RBP: 0000000000000001 R08: 00000000000003e0 R09:
0000000000000004
[   12.767064] R10: 0000000000000000 R11: 0000000000000001 R12:
ffff9cd1b54081b8
[   12.767065] R13: ffff9cd1b5409bc8 R14: ffff9cd1b54081b8 R15:
ffff9cd1afa01000
[   12.767068] FS:  00007fe2f471cf00(0000) GS:ffff9cd1bef40000(0000)
knlGS:0000000000000000
[   12.767070] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.767072] CR2: 00007fe2dc096000 CR3: 0000000430576000 CR4:
00000000003406e0
[   12.767073] Call Trace:
[   12.767203]  dcn10_pipe_control_lock.part.20+0x6a/0x70 [amdgpu]
[   12.767320]  dc_stream_set_cursor_attributes+0x11f/0x170 [amdgpu]
[   12.767450]  handle_cursor_update.isra.49+0x1b2/0x310 [amdgpu]
[   12.767580]  amdgpu_dm_commit_cursors.isra.50+0x5b/0x70 [amdgpu]
[   12.767712]  amdgpu_dm_atomic_commit_tail+0x146f/0x1960 [amdgpu]
[   12.767719]  ? _cond_resched+0x15/0x30
[   12.767725]  ? kmem_cache_alloc_trace+0x146/0x1c0
[   12.767736]  ? ttm_bo_validate+0x37/0x130 [ttm]
[   12.767838]  ? amdgpu_bo_pin_restricted+0x23d/0x270 [amdgpu]
[   12.767842]  ? _cond_resched+0x15/0x30
[   12.767847]  ? wait_for_completion_timeout+0x3b/0x1a0
[   12.767851]  ? refcount_inc_checked+0x5/0x30
[   12.767947]  ? amdgpu_bo_ref+0x17/0x20 [amdgpu]
[   12.768075]  ? dm_plane_helper_prepare_fb+0x126/0x300 [amdgpu]
[   12.768091]  ? commit_tail+0x3d/0x70 [drm_kms_helper]
[   12.768103]  commit_tail+0x3d/0x70 [drm_kms_helper]
[   12.768117]  drm_atomic_helper_commit+0xb4/0x120 [drm_kms_helper]
[   12.768129]  drm_atomic_helper_update_plane+0xf1/0x110 [drm_kms_helper]
[   12.768157]  drm_mode_cursor_universal+0x143/0x260 [drm]
[   12.768163]  ? __switch_to+0x147/0x3e0
[   12.768189]  drm_mode_cursor_common+0xc9/0x220 [drm]
[   12.768214]  ? drm_mode_cursor_ioctl+0x70/0x70 [drm]
[   12.768234]  drm_ioctl_kernel+0xac/0xf0 [drm]
[   12.768257]  drm_ioctl+0x201/0x3a0 [drm]
[   12.768282]  ? drm_mode_cursor_ioctl+0x70/0x70 [drm]
[   12.768369]  amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
[   12.768375]  do_vfs_ioctl+0xa4/0x630
[   12.768379]  ksys_ioctl+0x60/0x90
[   12.768383]  ? ksys_read+0x99/0xd0
[   12.768385]  __x64_sys_ioctl+0x16/0x20
[   12.768390]  do_syscall_64+0x53/0x130
[   12.768394]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   12.768398] RIP: 0033:0x7fe2f4c5f5d7
[   12.768401] Code: 00 00 90 48 8b 05 b9 78 0c 00 64 c7 00 26 00 00 00 48 c7
c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01
f0 ff ff 73 01 c3 48 8b 0d 89 78 0c 00 f7 d8 64 89 01 48
[   12.768402] RSP: 002b:00007ffceac65e78 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[   12.768406] RAX: ffffffffffffffda RBX: 0000560127c7ce80 RCX:
00007fe2f4c5f5d7
[   12.768407] RDX: 00007ffceac65ec0 RSI: 00000000c02464bb RDI:
000000000000000d
[   12.768408] RBP: 00007ffceac65ec0 R08: 0000000000000001 R09:
0000000000003fff
[   12.768410] R10: 000000000000007f R11: 0000000000000246 R12:
00000000c02464bb
[   12.768411] R13: 000000000000000d R14: 0000000000000004 R15:
00005601280f7db0
[   12.768415] ---[ end trace d4348d0b513dc5d0 ]---

I will try the workaround in the X driver and see.

Is there any preliminary guess/chance for an official fix in kernel or in xorg?

Thanks,
-mk

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