You appear to have a problem in the kernel, this isn't a bug in systemd/udev:
[1015211.431369] printk: systemd: 94 output lines suppressed due to ratelimiting [1015211.435009] systemd[1]: systemd 242 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid) [1015211.453068] systemd[1]: Detected architecture x86-64. [1015352.369048] INFO: task systemd:1 blocked for more than 120 seconds. [1015352.369055] Tainted: P OE 5.3.0-23-generic #25-Ubuntu [1015352.369058] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [1015352.369062] systemd D 0 1 0 0x00000000 [1015352.369066] Call Trace: [1015352.369079] __schedule+0x2b9/0x6c0 [1015352.369086] ? page_add_file_rmap+0xe4/0x170 [1015352.369092] schedule+0x42/0xb0 [1015352.369097] schedule_preempt_disabled+0xe/0x10 [1015352.369102] __mutex_lock.isra.0+0x182/0x4f0 [1015352.369106] ? _cond_resched+0x19/0x30 [1015352.369113] ? security_capable+0x47/0x70 [1015352.369118] __mutex_lock_slowpath+0x13/0x20 [1015352.369123] mutex_lock+0x2e/0x40 [1015352.369129] __do_sys_reboot+0xaf/0x210 [1015352.369135] ? ep_insert+0x33e/0x4c0 [1015352.369139] ? ep_show_fdinfo+0x90/0x90 [1015352.369145] ? __x64_sys_epoll_ctl+0x2f8/0x840 [1015352.369151] __x64_sys_reboot+0x1e/0x20 [1015352.369157] do_syscall_64+0x5a/0x130 [1015352.369164] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [1015352.369169] RIP: 0033:0x7f499f94f5f7 [1015352.369179] Code: Bad RIP value. [1015352.369182] RSP: 002b:00007ffcbd047a38 EFLAGS: 00000246 ORIG_RAX: 00000000000000a9 [1015352.369186] RAX: ffffffffffffffda RBX: 00005597fa0fa690 RCX: 00007f499f94f5f7 [1015352.369188] RDX: 0000000000000000 RSI: 0000000028121969 RDI: 00000000fee1dead [1015352.369190] RBP: 00000000ffffffff R08: 00005597fa0fb760 R09: 0000000000000000 [1015352.369192] R10: 00007ffcbd0479cc R11: 0000000000000246 R12: 0000000000000000 [1015352.369194] R13: 00007ffcbd047a80 R14: 000000000000003e R15: 000000000000003f ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: systemd (Ubuntu) Status: New => Invalid -- 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/1854506 Title: package udev 242-7ubuntu3.2 failed to install/upgrade: installed udev package post-installation script subprocess returned error exit status 1 Status in linux package in Ubuntu: New Status in systemd package in Ubuntu: Invalid Bug description: error during boot ProblemType: Package DistroRelease: Ubuntu 19.10 Package: udev 242-7ubuntu3.2 ProcVersionSignature: Ubuntu 5.3.0-23.25-generic 5.3.7 Uname: Linux 5.3.0-23-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu8.2 Architecture: amd64 CustomUdevRuleFiles: 70-snap.spotify.rules 70-snap.core.rules Date: Wed Nov 27 11:46:55 2019 ErrorMessage: installed udev package post-installation script subprocess returned error exit status 1 MachineType: LENOVO 20HHS08K00 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-23-generic root=UUID=026e18db-56ea-4610-9832-7874316245ad ro quiet splash vt.handoff=7 Python3Details: /usr/bin/python3.7, Python 3.7.5, python3-minimal, 3.7.5-1 PythonDetails: /usr/bin/python3.6, Python 3.6.7, python-minimal, 2.7.17-1 RelatedPackageVersions: dpkg 1.19.7ubuntu2 apt 1.9.4 SourcePackage: systemd Title: package udev 242-7ubuntu3.2 failed to install/upgrade: installed udev package post-installation script subprocess returned error exit status 1 UpgradeStatus: Upgraded to eoan on 2019-09-27 (62 days ago) dmi.bios.date: 10/04/2018 dmi.bios.vendor: LENOVO dmi.bios.version: N1UET72W (1.46 ) dmi.board.asset.tag: Not Available dmi.board.name: 20HHS08K00 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1UET72W(1.46):bd10/04/2018:svnLENOVO:pn20HHS08K00:pvrThinkPadP51:rvnLENOVO:rn20HHS08K00:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad P51 dmi.product.name: 20HHS08K00 dmi.product.sku: LENOVO_MT_20HH_BU_Think_FM_ThinkPad P51 dmi.product.version: ThinkPad P51 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1854506/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp