Thank you kindly. I was able to ssh into the machine and prepare a crash report from the gnome-shell process, I will upload that shortly, perhaps as a separate bug report. However, the real culprit might be located in the dmesg:
``` [12870.773176] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT] [12870.773196] nouveau 0000:01:00.0: fifo: runlist 0: scheduled for recovery [12870.773220] nouveau 0000:01:00.0: fifo: channel 6: killed [12870.773229] nouveau 0000:01:00.0: fifo: engine 5: scheduled for recovery [12870.773234] nouveau 0000:01:00.0: fifo: engine 0: scheduled for recovery [12870.773896] nouveau 0000:01:00.0: systemd-logind[1312]: channel 6 killed! [12907.524710] GpuWatchdog[5838]: segfault at 0 ip 0000560accf3e4c9 sp 00007f3ce9a516c0 error 6 in chrome[560ac8dd1000+7094000] [12907.524716] Code: 00 79 09 48 8b 7d c0 e8 05 28 2b fc c7 45 c0 aa aa aa aa 0f ae f0 41 8b 84 24 e0 00 00 00 89 45 c0 48 8d 7d c0 e8 e7 44 e9 fb <c7> 04 25 00 00 00 00 37 13 00 00 48 83 c4 38 5b 41 5c 41 5d 41 5e [12922.616876] nouveau 0000:01:00.0: Xwayland[2419]: failed to idle channel 4 [Xwayland[2419]] [12937.616723] nouveau 0000:01:00.0: Xwayland[2419]: failed to idle channel 4 [Xwayland[2419]] [12937.616907] nouveau 0000:01:00.0: fifo: fault 00 [READ] at 0000000000013000 engine 07 [HOST0] client 07 [HUB/HOST_CPU] reason 02 [PTE] on channel 4 [007fa19000 Xwayland[2419]] [12937.616915] nouveau 0000:01:00.0: fifo: channel 4: killed [12937.616917] nouveau 0000:01:00.0: fifo: runlist 0: scheduled for recovery [12937.616923] nouveau 0000:01:00.0: fifo: engine 0: scheduled for recovery [12937.616941] nouveau 0000:01:00.0: fifo: engine 5: scheduled for recovery [12937.616945] nouveau 0000:01:00.0: Xwayland[2419]: channel 4 killed! [12937.735092] ------------[ cut here ]------------ [12937.735142] WARNING: CPU: 3 PID: 26055 at drivers/gpu/drm/nouveau/nvif/vmm.c:68 nvif_vmm_put+0x6d/0x80 [nouveau] [12937.735142] Modules linked in: rfcomm aufs cmac algif_hash algif_skcipher af_alg bnep overlay binfmt_misc dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua intel_rapl_msr mei_hdcp snd_hda_codec_hdmi intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm intel_cstate intel_rapl_perf iwlmvm mac80211 libarc4 snd_usb_audio snd_hda_codec_realtek serio_raw intel_wmi_thunderbolt uvcvideo rmi_smbus snd_hda_codec_generic snd_usbmidi_lib rmi_core snd_seq_midi snd_seq_midi_event wmi_bmof videobuf2_vmalloc iwlwifi videobuf2_memops videobuf2_v4l2 snd_rawmidi snd_hda_intel videobuf2_common snd_intel_dspcfg rtsx_pci_ms thinkpad_acpi btusb snd_hda_codec nvram videodev btrtl btbcm snd_hda_core input_leds memstick ledtrig_audio mc snd_seq btintel joydev cfg80211 snd_hwdep bluetooth snd_pcm snd_seq_device mei_me ecdh_generic ecc snd_timer mei intel_pch_thermal snd soundcore mac_hid sch_fq_codel cuse parport_pc ppdev lp parport ip_tables x_tables autofs4 btrfs zstd_compress dm_crypt [12937.735161] raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor hid_generic usbhid hid raid6_pq libcrc32c raid1 raid0 multipath linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel nouveau rtsx_pci_sdmmc mxm_wmi aesni_intel crypto_simd i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt cryptd fb_sys_fops glue_helper drm e1000e psmouse ahci i2c_i801 rtsx_pci libahci wmi video [12937.735173] CPU: 3 PID: 26055 Comm: chrome Not tainted 5.4.0-31-generic #35-Ubuntu [12937.735174] Hardware name: LENOVO 20EN0005MS/20EN0005MS, BIOS N1EET87W (1.60 ) 12/06/2019 [12937.735194] RIP: 0010:nvif_vmm_put+0x6d/0x80 [nouveau] [12937.735196] Code: 00 00 48 8d 55 e0 be 02 00 00 00 48 c7 45 e0 00 00 00 00 48 89 45 e8 e8 71 e5 ff ff 85 c0 75 0a 48 c7 43 08 00 00 00 00 eb b7 <0f> 0b eb f2 e8 ea f6 58 eb 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 [12937.735196] RSP: 0018:ffffb807c5f5fbc8 EFLAGS: 00010282 [12937.735197] RAX: 00000000fffffffe RBX: ffffb807c5f5fbf8 RCX: 0000000000000000 [12937.735198] RDX: 0000000000000010 RSI: ffffb807c5f5fb38 RDI: ffffb807c5f5fbd8 [12937.735198] RBP: ffffb807c5f5fbe8 R08: 0000000000000000 R09: 0000000000000000 [12937.735199] R10: 0000000000000030 R11: ffff9b7ac9c07e40 R12: ffffb807c5f5fc30 [12937.735199] R13: ffff9b7ca4fff0b0 R14: 0000000000000000 R15: ffff9b7ac9c07e38 [12937.735200] FS: 00007f3cfaa1db00(0000) GS:ffff9b7cac2c0000(0000) knlGS:0000000000000000 [12937.735201] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [12937.735201] CR2: 0000560ad25fe010 CR3: 0000000842f0a004 CR4: 00000000003606e0 [12937.735202] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [12937.735202] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [12937.735203] Call Trace: [12937.735265] nouveau_vma_del+0x75/0xc0 [nouveau] [12937.735316] nouveau_gem_object_close+0x1f5/0x210 [nouveau] [12937.735330] drm_gem_object_release_handle+0x35/0xa0 [drm] [12937.735337] drm_gem_handle_delete+0x59/0xa0 [drm] [12937.735344] ? drm_gem_handle_create+0x40/0x40 [drm] [12937.735350] drm_gem_close_ioctl+0x24/0x30 [drm] [12937.735356] drm_ioctl_kernel+0xae/0xf0 [drm] [12937.735362] drm_ioctl+0x234/0x3d0 [drm] [12937.735384] ? drm_gem_handle_create+0x40/0x40 [drm] [12937.735387] ? dentry_free+0x37/0x70 [12937.735420] nouveau_drm_ioctl+0x78/0xc0 [nouveau] [12937.735422] do_vfs_ioctl+0x407/0x670 [12937.735439] ? __secure_computing+0x42/0xe0 [12937.735440] ksys_ioctl+0x67/0x90 [12937.735441] __x64_sys_ioctl+0x1a/0x20 [12937.735444] do_syscall_64+0x57/0x190 [12937.735447] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [12937.735448] RIP: 0033:0x7f3cf36195d7 [12937.735450] Code: b3 66 90 48 8b 05 b1 48 2d 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 81 48 2d 00 f7 d8 64 89 01 48 [12937.735451] RSP: 002b:00007fff0606e3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [12937.735452] RAX: ffffffffffffffda RBX: 0000560ad25c92a0 RCX: 00007f3cf36195d7 [12937.735453] RDX: 00007fff0606e430 RSI: 0000000040086409 RDI: 0000000000000015 [12937.735453] RBP: 00007fff0606e430 R08: 00000000000000e9 R09: 0000000000000010 [12937.735454] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000040086409 [12937.735455] R13: 0000000000000015 R14: 0000560ad24b3560 R15: 0000560ad25c7500 [12937.735457] ---[ end trace 4c9d0e4f452c0cf2 ]--- [12937.736277] ------------[ cut here ]------------ ``` I'm attaching a full dmesg dump. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1878166 Title: gnome-shell freezes randomly on nouveau and wayland To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1878166/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
