J'ai fais un dernier test avec la série du noyau 5.2 qui est le 5.2.14 sans succès. J'en ferais un avec les prochains sur Fedora 30 sur le Intel i7 4771, le Ryzen 7 étant passé à Fedora 31 et son noyau série 5.3.
Là je termine les tests de résolutions du bogue avec la série 5.3. A voir si c'est enfin de l'histoire ancienne.
Édit : Bon bah... Raté :
[55196.546306] CPU: 14 PID: 204809 Comm: kworker/u64:1 Tainted: G W 5.3.0-0.rc6.git0.1.fc31.x86_64 #1
[55196.546308] Hardware name: Micro-Star International Co., Ltd. MS-7B78/X470 GAMING PRO CARBON (MS-7B78), BIOS 2.A0 07/27/2019
[55196.546322] Workqueue: events_unbound commit_work [drm_kms_helper]
[55196.546431] RIP: 0010:dc_stream_log+0x6/0xb0 [amdgpu]
[55196.546435] Code: f6 09 d1 8b 50 58 83 f1 01 0f b6 c9 e8 53 6d 33 d0 e9 70 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f 1f 44 00 00 53 <8b> 86 ac 02 00 00 48 89 f3 48 89 f2 8b 8e 0c 01 00 00 bf 04 00 00
[55196.546437] RSP: 0018:ffffbdcb4bb1fae0 EFLAGS: 00010202
[55196.546439] RAX: 0000000000000000 RBX: ffff99116aa50000 RCX: 0000000000000002
[55196.546440] RDX: ffffffffc0972250 RSI: 0000000000000000 RDI: ffff991368260000
[55196.546441] RBP: 0000000000000001 R08: ffff99116aa50000 R09: 0000000000000000
[55196.546443] R10: ffff99116aa50000 R11: 0000000000000000 R12: ffff9913681edc48
[55196.546444] R13: 0000000000000006 R14: ffff991196ed0400 R15: ffff991368260000
[55196.546446] FS: 0000000000000000(0000) GS:ffff99137e980000(0000) knlGS:0000000000000000
[55196.546448] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[55196.546451] CR2: 00000000000002ac CR3: 00000005f3936000 CR4: 00000000003406e0
[55196.546452] Call Trace:
[55196.546545] dc_commit_state+0x97/0x5c0 [amdgpu]
[55196.546642] amdgpu_dm_atomic_commit_tail+0xd02/0x1c50 [amdgpu]
[55196.546651] ? check_preempt_wakeup+0x102/0x230
[55196.546654] ? tracing_record_taskinfo_skip+0x40/0x50
[55196.546657] ? tracing_record_taskinfo+0x10/0xa0
[55196.546660] ? try_to_wake_up+0x212/0x660
[55196.546665] ? __switch_to_asm+0x40/0x70
[55196.546667] ? __switch_to_asm+0x34/0x70
[55196.546669] ? __switch_to_asm+0x40/0x70
[55196.546670] ? __switch_to_asm+0x34/0x70
[55196.546673] ? __switch_to_asm+0x40/0x70
[55196.546676] ? __switch_to_asm+0x34/0x70
[55196.546678] ? __switch_to_asm+0x40/0x70
[55196.546680] ? __switch_to_asm+0x34/0x70
[55196.546683] ? __switch_to_asm+0x40/0x70
[55196.546684] ? __switch_to_asm+0x34/0x70
[55196.546686] ? __switch_to_asm+0x40/0x70
[55196.546688] ? __switch_to_asm+0x34/0x70
[55196.546690] ? __switch_to_asm+0x40/0x70
[55196.546693] ? __switch_to_asm+0x34/0x70
[55196.546695] ? __switch_to_asm+0x40/0x70
[55196.546698] ? __switch_to_asm+0x34/0x70
[55196.546700] ? __switch_to_asm+0x40/0x70
[55196.546701] ? __switch_to_asm+0x34/0x70
[55196.546703] ? __switch_to_asm+0x40/0x70
[55196.546705] ? __switch_to_asm+0x34/0x70
[55196.546706] ? __switch_to_asm+0x40/0x70
[55196.546707] ? __switch_to_asm+0x34/0x70
[55196.546711] ? __switch_to_asm+0x40/0x70
[55196.546713] ? __switch_to_asm+0x34/0x70
[55196.546714] ? __switch_to_asm+0x40/0x70
[55196.546717] ? __switch_to_asm+0x34/0x70
[55196.546719] ? __switch_to_asm+0x40/0x70
[55196.546720] ? __switch_to_asm+0x34/0x70
[55196.546722] ? __switch_to_asm+0x40/0x70
[55196.546725] ? __switch_to+0x152/0x440
[55196.546727] ? __switch_to_asm+0x34/0x70
[55196.546730] ? __schedule+0x2a7/0x680
[55196.546732] ? preempt_schedule_common+0x14/0x20
[55196.546734] ? _cond_resched+0x15/0x30
[55196.546736] ? wait_for_completion_timeout+0x38/0x170
[55196.546745] ? commit_tail+0x3c/0x70 [drm_kms_helper]
[55196.546753] commit_tail+0x3c/0x70 [drm_kms_helper]
[55196.546757] process_one_work+0x19d/0x340
[55196.546760] worker_thread+0x50/0x3b0
[55196.546765] kthread+0xfb/0x130
[55196.546766] ? process_one_work+0x340/0x340
[55196.546768] ? kthread_park+0x80/0x80
[55196.546772] ret_from_fork+0x22/0x40
[55196.546775] Modules linked in: xt_MASQUERADE xt_CHECKSUM nf_nat_tftp nf_conntrack_tftp xt_CT tun bridge stp llc ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables nct6775 hwmon_vid sunrpc dm_crypt xfs vfat fat libcrc32c dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua snd_hda_codec_realtek snd_hda_codec_generic edac_mce_amd ledtrig_audio snd_hda_codec_hdmi snd_hda_intel kvm_amd snd_usb_audio snd_hda_codec kvm snd_hda_core snd_usbmidi_lib snd_rawmidi snd_hwdep snd_seq snd_seq_device irqbypass snd_pcm crct10dif_pclmul crc32_pclmul mc snd_timer ghash_clmulni_intel wmi_bmof snd ccp sp5100_tco k10temp mxm_wmi i2c_piix4 soundcore joydev gpio_amdpt gpio_generic acpi_cpufreq amdgpu hid_logitech_hidpp
[55196.546818] amd_iommu_v2 gpu_sched ttm drm_kms_helper igb drm dca i2c_algo_bit crc32c_intel nvme hid_logitech nvme_core ff_memless hid_logitech_dj wmi pinctrl_amd fuse
[55196.546831] CR2: 00000000000002ac
[55196.546834] ---[ end trace cf3e15abaf0c8bb5 ]---
[55196.546919] RIP: 0010:dc_stream_log+0x6/0xb0 [amdgpu]
[55196.546922] Code: f6 09 d1 8b 50 58 83 f1 01 0f b6 c9 e8 53 6d 33 d0 e9 70 ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f 1f 44 00 00 53 <8b> 86 ac 02 00 00 48 89 f3 48 89 f2 8b 8e 0c 01 00 00 bf 04 00 00
[55196.546924] RSP: 0018:ffffbdcb4bb1fae0 EFLAGS: 00010202
[55196.546925] RAX: 0000000000000000 RBX: ffff99116aa50000 RCX: 0000000000000002
[55196.546927] RDX: ffffffffc0972250 RSI: 0000000000000000 RDI: ffff991368260000
[55196.546929] RBP: 0000000000000001 R08: ffff99116aa50000 R09: 0000000000000000
[55196.546930] R10: ffff99116aa50000 R11: 0000000000000000 R12: ffff9913681edc48
[55196.546931] R13: 0000000000000006 R14: ffff991196ed0400 R15: ffff991368260000
[55196.546932] FS: 0000000000000000(0000) GS:ffff99137e980000(0000) knlGS:0000000000000000
[55196.546934] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[55196.546935] CR2: 00000000000002ac CR3: 00000005f3936000 CR4: 00000000003406e0
[55221.037297] usb 3-1: USB disconnect, device number 2
A voir avec la dernière version du noyau en date 🙁, la version stable 5.3.0-1.
Édit : encore raté.. cela devient risible