Public bug reported: I have had two spontaneous crashes in three days, with this in the syslog:
Oct 8 09:19:57 alhazen kernel: [ 1532.621173] ------------[ cut here ]------------ Oct 8 09:19:57 alhazen kernel: [ 1532.621292] WARNING: CPU: 13 PID: 8346 at drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:3194 dcn20_validate_bandwidth_fp+0x87/0xc0 [amdgpu] Oct 8 09:19:57 alhazen kernel: [ 1532.621301] Modules linked in: vhost_net vhost tap vhost_iotlb snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 xt_tcpudp nft_compat nft_counter nft_chain_nat nf_nat nf_connt rack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c nf_tables nfnetlink bridge stp llc binfmt_misc nls_iso8859_1 amd64_edac_mod edac_mce_amd kvm_amd kvm snd_hda_codec_realtek rapl snd_hda_codec_generic eeepc_wmi ledtrig_audio serio_raw asus_wmi snd_hda_codec _hdmi sparse_keymap efi_pstore video wmi_bmof snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_usb_audio snd_hda_core snd_usbmidi_lib snd_seq_midi gspca_vc032x joydev snd_seq_midi_event uvcvideo gspca_zc3xx snd_rawmidi gspca_main snd_hwdep videobuf2_v malloc videobuf2_memops videobuf2_v4l2 input_leds k10temp videobuf2_common snd_pcm snd_seq snd_seq_device snd_timer snd ccp soundcore mac_hid sch_fq_codel cuse nct6775 hwmon_vid v4l2loopback(OE) videodev mc parport_pc ppdev lp parport ip_tables x_tabl es autofs4 dm_crypt uas usb_storage Oct 8 09:19:57 alhazen kernel: [ 1532.621333] hid_generic usbhid hid amdgpu iommu_v2 gpu_sched ttm crct10dif_pclmul mxm_wmi crc32_pclmul ghash_clmulni_intel drm_kms_helper aesni_intel syscopyarea sysfillrect crypto_simd sysimgblt cryptd fb_sys_fops glue_helper cec rc_core drm igb nvme ahci xhci_pci dca libahci i2c_piix4 xhci_pci_renesas i2c_algo_bit nvme_core wmi Oct 8 09:19:57 alhazen kernel: [ 1532.621348] CPU: 13 PID: 8346 Comm: kworker/13:3 Tainted: G OE 5.8.0-20-lowlatency #21-Ubuntu Oct 8 09:19:57 alhazen kernel: [ 1532.621349] Hardware name: System manufacturer System Product Name/PRIME X570-PRO, BIOS 2606 08/13/2020 Oct 8 09:19:57 alhazen kernel: [ 1532.621369] Workqueue: events drm_mode_rmfb_work_fn [drm] Oct 8 09:19:57 alhazen kernel: [ 1532.621478] RIP: 0010:dcn20_validate_bandwidth_fp+0x87/0xc0 [amdgpu] Oct 8 09:19:57 alhazen kernel: [ 1532.621480] Code: 24 a8 1e 00 00 75 29 31 d2 4c 89 e6 4c 89 ef f2 41 0f 11 84 24 d8 25 00 00 e8 05 fd ff ff 89 c2 41 22 94 24 a8 1e 00 00 75 26 <0f> 0b eb 02 75 cd 49 89 9c 24 d8 25 00 00 5b 41 5c 41 5d 5d c3 ba Oct 8 09:19:57 alhazen kernel: [ 1532.621483] RSP: 0018:ffffb455875d3c18 EFLAGS: 00010246 Oct 8 09:19:57 alhazen kernel: [ 1532.621484] RAX: 0000000000000001 RBX: 4079400000000000 RCX: 000000001153800d Oct 8 09:19:57 alhazen kernel: [ 1532.621485] RDX: 0000000000000000 RSI: fba65b79459e0f73 RDI: 00000000000311a0 Oct 8 09:19:57 alhazen kernel: [ 1532.621486] RBP: ffffb455875d3c30 R08: ffff9a9ab7be0000 R09: ffff9a9ad0da0000 Oct 8 09:19:57 alhazen kernel: [ 1532.621487] R10: ffff9a9abdb88000 R11: 0000000100000001 R12: ffff9a9ab7be0000 Oct 8 09:19:57 alhazen kernel: [ 1532.621487] R13: ffff9a9ad0da0000 R14: ffff9a9ad3e37800 R15: ffff9a9ab7be0000 Oct 8 09:19:57 alhazen kernel: [ 1532.621489] FS: 0000000000000000(0000) GS:ffff9a9aeed40000(0000) knlGS:0000000000000000 Oct 8 09:19:57 alhazen kernel: [ 1532.621490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Oct 8 09:19:57 alhazen kernel: [ 1532.621490] CR2: 00007f43ac194850 CR3: 000000036c80a000 CR4: 0000000000340ee0 Oct 8 09:19:57 alhazen kernel: [ 1532.621491] Call Trace: Oct 8 09:19:57 alhazen kernel: [ 1532.621607] dcn20_validate_bandwidth+0x29/0x40 [amdgpu] Oct 8 09:19:57 alhazen kernel: [ 1532.621721] dc_validate_global_state+0x2f6/0x390 [amdgpu] Oct 8 09:19:57 alhazen kernel: [ 1532.621830] amdgpu_dm_atomic_check+0x87c/0x8a0 [amdgpu] Oct 8 09:19:57 alhazen kernel: [ 1532.621853] drm_atomic_check_only+0x1e9/0x360 [drm] Oct 8 09:19:57 alhazen kernel: [ 1532.621869] drm_atomic_commit+0x18/0x50 [drm] Oct 8 09:19:57 alhazen kernel: [ 1532.621884] atomic_remove_fb+0x25b/0x2d0 [drm] Oct 8 09:19:57 alhazen kernel: [ 1532.621900] drm_framebuffer_remove+0x5c/0xa0 [drm] Oct 8 09:19:57 alhazen kernel: [ 1532.621912] drm_mode_rmfb_work_fn+0x41/0x50 [drm] Oct 8 09:19:57 alhazen kernel: [ 1532.621917] process_one_work+0x1df/0x3d0 Oct 8 09:19:57 alhazen kernel: [ 1532.621921] worker_thread+0x205/0x350 Oct 8 09:19:57 alhazen kernel: [ 1532.621923] ? rescuer_thread+0x390/0x390 Oct 8 09:19:57 alhazen kernel: [ 1532.621924] kthread+0x145/0x170 Oct 8 09:19:57 alhazen kernel: [ 1532.621926] ? kthread_create_on_node+0x60/0x60 Oct 8 09:19:57 alhazen kernel: [ 1532.621928] ret_from_fork+0x22/0x30 Oct 8 09:19:57 alhazen kernel: [ 1532.621929] ---[ end trace e76afab44e4cb434 ]--- First time the UI just locked up, but I could still switch to another console and restart things, today the screens just went black and I got a login screen a short while later (so this is still better than https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1883493 in focal). But I didn't have these while running an upstream 5.8.0 on focal. ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: linux-image-lowlatency 5.8.0.20.25 ProcVersionSignature: Ubuntu 5.8.0-20.21-lowlatency 5.8.10 Uname: Linux 5.8.0-20-lowlatency x86_64 ApportVersion: 2.20.11-0ubuntu49 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Thu Oct 8 09:23:09 2020 InstallationDate: Installed on 2020-05-28 (132 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: System manufacturer System Product Name ProcFB: 0 amdgpudrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-20-lowlatency root=/dev/mapper/vgubuntu-root ro quiet splash acpi-enforce-resources=lax vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-5.8.0-20-lowlatency N/A linux-backports-modules-5.8.0-20-lowlatency N/A linux-firmware 1.190 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to groovy on 2020-10-03 (4 days ago) dmi.bios.date: 08/13/2020 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2606 dmi.board.asset.tag: Default string dmi.board.name: PRIME X570-PRO dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2606:bd08/13/2020:br5.17:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEX570-PRO:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: System manufacturer ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug groovy -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1898988 Title: Random UI crashes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1898988/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
