I'd like to perform a kernel bisect to figure out which commit caused this regression. We need to identify the earliest kernel that did not exhibit the bug and the first kernel that did exhibit the bug.
Can you test the following kernels and post back? v4.9 Final: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9/ v4.10-rc1: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc1/ v4.10-rc4: http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10-rc4/ You don't have to test every kernel, just up until the kernel that first has this bug. ** Tags added: performing-bisect -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1685864 Title: System freezes when logging into gnome-shell Status in linux package in Ubuntu: Confirmed Status in linux source package in Zesty: Confirmed Bug description: I upgraded to ubuntu 17.04 this morning, and can no longer login with gnome/gnome(classic)/gnome on wayland. When I try, the UI completely freezes, and keyboard and mouse no longer respond. However, I am able to ssh into the machine, and see that there is a kernel bug in the logs: 10:48:51 kernel: error: failed to run Kubelet: invalid kubeconfig: stat /etc/kubernetes/kubelet.conf: no such file or directory 10:48:51 kernel: I0424 10:48:50.979914 4641 feature_gate.go:144] feature gates: map[] 10:48:51 kernel: ---[ end trace 41c77bd8e97d35e7 ]--- 10:48:51 kernel: CR2: 0000000000000000 10:48:51 kernel: RIP: (null) RSP: ffffc17a44fdfa30 10:48:51 kernel: Code: Bad RIP value. 10:48:51 kernel: R13: 000055f4bf9307b0 R14: 000000000000000a R15: 000055f4bf8f06e0 10:48:51 kernel: R10: 000055f4bf5c0c50 R11: 0000000000003246 R12: 0000000000000130 10:48:51 kernel: RBP: 0000000000001c80 R08: 0000000000000040 R09: 0000000000000780 10:48:51 kernel: RDX: 00007f96d5f0a360 RSI: 00000000c01c64a3 RDI: 000000000000000e 10:48:51 kernel: RAX: ffffffffffffffda RBX: 00007f96e30dcc20 RCX: 00007f96e0afa987 10:48:51 kernel: RSP: 002b:00007f96d5f0a328 EFLAGS: 00003246 ORIG_RAX: 0000000000000010 10:48:51 kernel: RIP: 0033:0x7f96e0afa987 10:48:51 kernel: entry_SYSCALL_64_fastpath+0x1e/0xad 10:48:51 kernel: SyS_ioctl+0x79/0x90 10:48:51 kernel: ? vfs_read+0x96/0x130 10:48:51 kernel: ? __vfs_read+0x18/0x40 10:48:51 kernel: do_vfs_ioctl+0xa3/0x610 10:48:51 kernel: nouveau_drm_ioctl+0x74/0xc0 [nouveau] 10:48:51 kernel: ? _copy_to_user+0x54/0x60 10:48:51 kernel: ? drm_mode_setplane+0x1a0/0x1a0 [drm] 10:48:51 kernel: drm_ioctl+0x21b/0x4c0 [drm] 10:48:51 kernel: drm_mode_cursor_ioctl+0x50/0x70 [drm] 10:48:51 kernel: ? ep_poll_callback+0xef/0x1f0 10:48:51 kernel: drm_mode_cursor_common+0x86/0x180 [drm] 10:48:51 kernel: drm_mode_cursor_universal+0x126/0x210 [drm] 10:48:51 kernel: ? __ww_mutex_lock_slowpath+0x29a/0x3d0 10:48:51 kernel: __setplane_internal+0x1b4/0x280 [drm] 10:48:51 kernel: drm_atomic_helper_update_plane+0xec/0x150 [drm_kms_helper] 10:48:51 kernel: drm_atomic_commit+0x4b/0x50 [drm] 10:48:51 kernel: nv50_disp_atomic_commit+0x19c/0x2a0 [nouveau] 10:48:51 kernel: drm_atomic_helper_wait_for_fences+0x48/0x120 [drm_kms_helper] 10:48:51 kernel: ? dma_fence_wait_timeout+0x39/0xf0 10:48:51 kernel: Call Trace: 10:48:51 kernel: CR2: 0000000000000000 CR3: 00000007ed6df000 CR4: 00000000000406e0 10:48:51 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 10:48:51 kernel: FS: 00007f96d5f0c700(0000) GS:ffff9aeefed00000(0000) knlGS:0000000000000000 10:48:51 kernel: R13: 0000000000000001 R14: 7fffffffffffffff R15: 0000000000000001 10:48:51 kernel: R10: ffff9aeed329b780 R11: ffff9aeed1157c08 R12: ffff9aeed08c6480 10:48:51 kernel: RBP: ffffc17a44fdfa58 R08: 0000000000000000 R09: ffff9aeed272a000 10:48:51 kernel: RDX: 7fffffffffffffff RSI: 0000000000000001 RDI: ffff9aeed08c6480 10:48:51 kernel: RAX: ffff9aeed3402000 RBX: ffff9aee6883b000 RCX: ffffffffc047afa0 10:48:51 kernel: RSP: 0018:ffffc17a44fdfa30 EFLAGS: 00010206 10:48:51 kernel: RIP: 0010: (null) 10:48:51 kernel: task: ffff9aeeafb02d00 task.stack: ffffc17a44fdc000 10:48:51 kernel: Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./GA-990FX-GAMING, BIOS F1 11/05/2015 10:48:51 kernel: CPU: 4 PID: 2212 Comm: InputThread Tainted: G OE 4.10.0-20-generic #22-Ubuntu 10:48:51 kernel: k10temp fam15h_power parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic hid_microsoft usbhid hid nouveau mxm_wmi video i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops alx drm nvme mdio ahci nvme_core libahci fjes wmi 10:48:51 kernel: Modules linked in: xt_nat xt_tcpudp veth ipt_MASQUERADE nf_nat_masquerade_ipv4 xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack libcrc32c br_netfilter bridge stp llc aufs pci_stub vboxpci(OE) vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) binfmt_misc snd_hda_codec_hdmi dm_crypt btrfs xor nls_iso8859_1 raid6_pq edac_mce_amd edac_core kvm_amd kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc input_leds joydev aesni_intel aes_x86_64 crypto_simd glue_helper cryptd snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_seq_midi snd_seq_midi_event snd_hda_core snd_rawmidi snd_hwdep snd_seq snd_pcm snd_seq_device snd_timer tpm_infineon mac_hid snd soundcore shpchp i2c_piix4 10:48:51 kernel: Oops: 0010 [#1] SMP 10:48:51 kernel: 10:48:50 kernel: PGD 0 10:48:50 kernel: IP: (null) 10:48:50 kernel: BUG: unable to handle kernel NULL pointer dereference at (null) Let me know what other information I can provide. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: linux-image-generic 4.10.0.20.22 ProcVersionSignature: Ubuntu 4.10.0-20.22-generic 4.10.8 Uname: Linux 4.10.0-20-generic x86_64 ApportVersion: 2.20.4-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: redbrick 6500 F.... pulseaudio /dev/snd/controlC0: redbrick 6500 F.... pulseaudio CurrentDesktop: Unity:Unity7 Date: Mon Apr 24 11:16:20 2017 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=0c92ceaa-f94b-4a93-8df4-d3a8d65397f6 InstallationDate: Installed on 2016-04-22 (367 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Gigabyte Technology Co., Ltd. To be filled by O.E.M. ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-20-generic.efi.signed root=UUID=68cd6df4-a88f-4604-a099-ae7be33de08a ro iommu=soft quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.10.0-20-generic N/A linux-backports-modules-4.10.0-20-generic N/A linux-firmware 1.164 RfKill: SourcePackage: linux UpgradeStatus: Upgraded to zesty on 2017-04-24 (0 days ago) dmi.bios.date: 11/05/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F1 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: GA-990FX-GAMING dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF1:bd11/05/2015:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnGA-990FX-GAMING:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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