[Bug 110140] Green bottom half of video frame when using JPEG acceleration (vcn_v1_0_jpeg_ring_emit_fence() WARNING)

Sat Mar 16 17:42:46 UTC 2019

https://bugs.freedesktop.org/show_bug.cgi?id=110140

            Bug ID: 110140
           Summary: Green bottom half of video frame when using JPEG
                    acceleration (vcn_v1_0_jpeg_ring_emit_fence() WARNING)
           Product: Mesa
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: zajec5 at gmail.com
        QA Contact: dri-devel at lists.freedesktop.org

I use HP EliteBook 745 G5 with Ryzen 5 PRO 2500U.

When using Chromium and HTML5 based video chat:
https://meet.jit.si/amdtest
I see image from my webcam corrupted (bottom half is all green).

It only happens with Chromium's setting "Use hardware acceleration when
available" enabled which appears to involve some JPEG hardware acceleration.

With above web chat page opened I see about 10 kernel WARNINGs per second:

[  290.169611] WARNING: CPU: 0 PID: 374 at
drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c:1669
vcn_v1_0_jpeg_ring_emit_fence+0xc2f/0xc40 [amdgpu]
[  290.169615] Modules linked in: ccm(E) fuse(E) rfcomm(E) af_packet(E) bnep(E)
hid_logitech_hidpp(E) btusb(E) btrtl(E) btbcm(E) btintel(E) hid_logitech_dj(E)
hid_generic(E) bluetooth(E) cp210x(E) usbserial(E) ecdh_generic(E) usbhid(E)
uvcvideo(E) videobuf2_vmalloc(E) videobuf2_memops(E) videobuf2_v4l2(E)
videodev(E) videobuf2_common(E) nf_nat_tftp(E) nf_conntrack_tftp(E) xt_CT(E)
xt_tcpudp(E) ip6t_rpfilter(E) ip6t_REJECT(E) nf_reject_ipv6(E) ipt_REJECT(E)
nf_reject_ipv4(E) xt_conntrack(E) ebtable_nat(E) ip6table_nat(E) nf_nat_ipv6(E)
ip6table_mangle(E) ip6table_raw(E) ip6table_security(E) iptable_nat(E)
nf_nat_ipv4(E) nf_nat(E) iptable_mangle(E) iptable_raw(E) iptable_security(E)
nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E) libcrc32c(E) ip_set(E)
nfnetlink(E) ebtable_filter(E) ebtables(E) ip6table_filter(E) ip6_tables(E)
iptable_filter(E) ip_tables(E) x_tables(E) bpfilter(E)
snd_hda_codec_conexant(E) snd_hda_codec_generic(E) ledtrig_audio(E)
snd_hda_codec_hdmi(E) snd_hda_intel(E)
[  290.169671]  snd_hda_codec(E) snd_hda_core(E) snd_hwdep(E) snd_pcm(E)
snd_timer(E) snd(E) soundcore(E) arc4(E) edac_mce_amd(E) nls_iso8859_1(E)
nls_cp437(E) vfat(E) fat(E) msr(E) iwlmvm(E) crct10dif_pclmul(E)
crc32_pclmul(E) crc32c_intel(E) ghash_clmulni_intel(E) mac80211(E) iwlwifi(E)
aesni_intel(E) aes_x86_64(E) crypto_simd(E) realtek(E) cryptd(E) glue_helper(E)
hp_wmi(E) joydev(E) pcspkr(E) sparse_keymap(E) wmi_bmof(E) sp5100_tco(E)
cfg80211(E) k10temp(E) i2c_piix4(E) ipmi_devintf(E) r8169(E) rfkill(E)
ipmi_msghandler(E) libphy(E) ucsi_acpi(E) typec_ucsi(E) thermal(E) typec(E)
battery(E) hp_wireless(E) pinctrl_amd(E) ac(E) button(E) pcc_cpufreq(E)
acpi_cpufreq(E) amdgpu(E) i2c_algo_bit(E) gpu_sched(E) drm_kms_helper(E)
syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) ttm(E) serio_raw(E)
xhci_pci(E) ehci_pci(E) xhci_hcd(E) drm(E) ehci_hcd(E) usbcore(E) wmi(E)
video(E) i2c_hid(E) l2tp_ppp(E) l2tp_netlink(E) l2tp_core(E) ip6_udp_tunnel(E)
udp_tunnel(E) pppox(E) ppp_generic(E)
[  290.169730]  slhc(E) sg(E) dm_multipath(E) dm_mod(E) scsi_dh_rdac(E)
scsi_dh_emc(E) scsi_dh_alua(E) efivarfs(E)
[  290.169745] CPU: 0 PID: 374 Comm: vcn_jpeg Tainted: G        W   E    
5.0.0-rc1+ #6
[  290.169747] Hardware name: HP HP EliteBook 745 G5/83D5, BIOS Q81 Ver.
01.03.01 07/26/2018
[  290.169822] RIP: 0010:vcn_v1_0_jpeg_ring_emit_fence+0xc2f/0xc40 [amdgpu]
[  290.169825] Code: c0 e8 15 74 db ff 48 8b 83 38 02 00 00 e9 ea f4 ff ff 48
c7 c7 20 0f 67 c0 e8 fd 73 db ff 48 8b 83 38 02 00 00 e9 6e f4 ff ff <0f> 0b e9
ee f3 ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00
[  290.169827] RSP: 0018:ffffab50022fbdc8 EFLAGS: 00010202
[  290.169830] RAX: ffffffffc04f6500 RBX: ffff8fba5655c5a8 RCX:
0000000000000001
[  290.169831] RDX: 00000000000007f9 RSI: 000000000076e040 RDI:
ffff8fba5655c5a8
[  290.169833] RBP: ffff8fba56550000 R08: ffffab5001c1d000 R09:
ffffab5001c1d000
[  290.169834] R10: ffffab5001c1d000 R11: ffffab5001c1d000 R12:
0000000000000000
[  290.169836] R13: 000000000076e040 R14: 00000000000007f9 R15:
ffff8fba5b43ea10
[  290.169839] FS:  0000000000000000(0000) GS:ffff8fba5fc00000(0000)
knlGS:0000000000000000
[  290.169840] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  290.169842] CR2: 00007f8cc86e0008 CR3: 00000003f9e76000 CR4:
00000000003406f0
[  290.169844] Call Trace:
[  290.169920]  amdgpu_ib_schedule+0x29d/0x560 [amdgpu]
[  290.169996]  amdgpu_job_run+0xfd/0x170 [amdgpu]
[  290.170004]  drm_sched_main+0xdf/0x250 [gpu_sched]
[  290.170014]  ? wait_woken+0x80/0x80
[  290.170019]  ? drm_sched_stop+0x130/0x130 [gpu_sched]
[  290.170023]  kthread+0x116/0x130
[  290.170027]  ? kthread_create_worker_on_cpu+0x40/0x40
[  290.170034]  ret_from_fork+0x27/0x50
[  290.170040] ---[ end trace ffe1a144a94cb37d ]---

This problem occurs with kernels:
4.20.12
5.0.0
5.0.0-rc1 from agd5f's amd-staging-drm-next (2019-03-16)

I use Mesa 18.3.4.

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