SI crash with latest drm-next-5.8
Specifically, I have a HD 7750 if it can help.
[ 7.560074] ------------[ cut here ]------------
[ 7.560123] WARNING: CPU: 0 PID: 702 at drivers/gpu/drm/drm_modeset_lock.c:185 drm_warn_on_modeset_not_all_locked.part.0+0x6c/0x80 [drm]
[ 7.560124] Modules linked in: xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp ip6table_mangle ip6table_nat iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter tun bridge stp llc cmac mousedev input_leds algif_hash joydev algif_skcipher af_alg bnep hid_generic usbhid hid vmnet(OE) btusb btrtl btbcm btintel bluetooth ecdh_generic rfkill ecc amdgpu gpu_sched radeon snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg fuse snd_virtuoso snd_hda_codec snd_oxygen_lib coretemp iTCO_wdt snd_mpu401_uart i2c_algo_bit gpio_ich snd_hda_core ttm iTCO_vendor_support snd_rawmidi drm_kms_helper kvm_intel snd_hwdep snd_seq_device cec snd_pcm kvm rc_core syscopyarea lpc_ich sysfillrect sysimgblt snd_timer fb_sys_fops irqbypass snd pcspkr atl1e soundcore asus_atk0110 intel_agp rng_core intel_gtt evdev mac_hid acpi_cpufreq vmmon(OE) vmw_vmci
[ 7.560161] drm uinput crypto_user agpgart ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 ata_generic uhci_hcd pata_acpi ata_piix ehci_pci ehci_hcd
[ 7.560171] CPU: 0 PID: 702 Comm: Xorg Tainted: G OE 5.7.0-rc2-1-amd-staging-drm-next-git-00566-gab73728f5a6e #3
[ 7.560173] Hardware name: System manufacturer System Product Name/P5QPL-AM, BIOS 0416 06/22/2010
[ 7.560188] RIP: 0010:drm_warn_on_modeset_not_all_locked.part.0+0x6c/0x80 [drm]
[ 7.560190] Code: 01 00 00 e8 06 87 5c e8 84 c0 74 1a 49 8d bc 24 98 01 00 00 e8 f5 86 5c e8 84 c0 74 0d 5b 5d 41 5c c3 0f 0b eb c8 0f 0b eb e2 <0f> 0b 5b 5d 41 5c c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 66 66
[ 7.560191] RSP: 0018:ffffb20e408afa40 EFLAGS: 00010246
[ 7.560193] RAX: 0000000000000000 RBX: ffff94214c5252f8 RCX: 0000000000000000
[ 7.560194] RDX: 0000000000000000 RSI: ffff94214c5258a0 RDI: ffff94214c525198
[ 7.560195] RBP: ffff94214c525308 R08: ffff9421540d7148 R09: ffff94214c5252d8
[ 7.560195] R10: 0000000000000001 R11: ffff94214c525220 R12: ffff94214c525000
[ 7.560196] R13: ffff94214c525800 R14: ffff94214c5258a0 R15: ffff94214aa307d0
[ 7.560198] FS: 00007fde74411e80(0000) GS:ffff942157c00000(0000) knlGS:0000000000000000
[ 7.560199] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7.560200] CR2: 0000558e98bf0058 CR3: 0000000202fd2000 CR4: 00000000000006f0
[ 7.560201] Call Trace:
[ 7.560228] drm_crtc_helper_set_mode+0x84/0x490 [drm_kms_helper]
[ 7.560233] ? chksum_update+0x13/0x1a [crc32c_generic]
[ 7.560268] ? __ext4_handle_dirty_metadata+0x4b/0x1a0 [ext4]
[ 7.560280] ? ext4_mark_iloc_dirty+0x50d/0x860 [ext4]
[ 7.560284] ? _raw_spin_unlock_irqrestore+0x20/0x40
[ 7.560288] ? __wake_up_common_lock+0x92/0xc0
[ 7.560299] ? jbd2_journal_stop+0x15e/0x370 [jbd2]
[ 7.560302] ? preempt_count_add+0x49/0xa0
[ 7.560305] ? kernel_init_free_pages+0x6d/0x90
[ 7.560307] ? prep_new_page+0x8a/0xb0
[ 7.560503] amdgpu_connector_set_property+0x3a7/0x4d0 [amdgpu]
[ 7.560525] drm_connector_set_obj_prop+0x3e/0x90 [drm]
[ 7.560544] drm_mode_obj_set_property_ioctl+0x2a2/0x330 [drm]
[ 7.560564] ? drm_connector_set_obj_prop+0x90/0x90 [drm]
[ 7.560582] drm_connector_property_set_ioctl+0x41/0x60 [drm]
[ 7.560596] drm_ioctl_kernel+0xb2/0x100 [drm]
[ 7.560610] drm_ioctl+0x209/0x360 [drm]
[ 7.560626] ? drm_connector_set_obj_prop+0x90/0x90 [drm]
[ 7.560687] amdgpu_drm_ioctl+0x49/0x80 [amdgpu]
[ 7.560690] ksys_ioctl+0x87/0xc0
[ 7.560693] __x64_sys_ioctl+0x16/0x20
[ 7.560697] do_syscall_64+0x4e/0x150
[ 7.560699] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 7.560702] RIP: 0033:0x7fde7505f2eb
[ 7.560704] Code: 0f 1e fa 48 8b 05 a5 8b 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 75 8b 0c 00 f7 d8 64 89 01 48
[ 7.560706] RSP: 002b:00007ffc28c36768 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 7.560708] RAX: ffffffffffffffda RBX: 00007ffc28c367a0 RCX: 00007fde7505f2eb
[ 7.560710] RDX: 00007ffc28c367a0 RSI: 00000000c01064ab RDI: 000000000000000d
[ 7.560712] RBP: 00000000c01064ab R08: 000000000000ffff R09: 000000000000000f
[ 7.560713] R10: 00007fde750a58a0 R11: 0000000000000246 R12: 0000558e98bed850
[ 7.560715] R13: 000000000000000d R14: 0000558e98bf0370 R15: 0000558e98bf0370
[ 7.560719] ---[ end trace 6a8b70806044ed68 ]---
(let alone amd-staging-drm-next just hangs altogether, but I guess that's no man's land)