I have been experiencing random reboots of my system. Checked the core temps and fans. They were all well within normal limits. Thinking there might be a problem with the system itself, I bought a new system and placed my drive in it. That was yesterday. This morning I had another random boot.
Checking messages to determine the cause I ran across a time change, from 8:00 am to 3:00 am. The 3:00 am saying the system was rebooting. Once rebooted the time reverted back to the current time???
Jan 12 08:12:25 eagal01p named[13004]: network unreachable resolving ‘muw1-ncs-spoc-prod-blue.westus.cloudapp.azure.com/A/IN’: 2620:1ec:bda:10::2#53
Jan 12 03:13:37 eagal01p kernel: Linux version 5.14.0-362.13.1.el9_3.x86_64 (mockbuild@x64-builder01.almalinux.org) (gcc (GCC) 11.4.1 20230605 (Red Hat 11.4.1-2), GNU ld version 2.35.2-42.el9) #1 SMP PREEMPT_DYNAMIC Thu Dec 21 07:12:43 ES
T 2023
Jan 12 03:13:37 eagal01p kernel: The list of certified hardware and cloud instances for Red Hat Enterprise Linux 9 can be viewed at the Red Hat Ecosystem Catalog, https://catalog.redhat.com.
Jan 12 03:13:37 eagal01p kernel: Command line: BOOT_IMAGE=(hd0,msdos3)/vmlinuz-5.14.0-362.13.1.el9_3.x86_64 root=/dev/mapper/rl-root ro crashkernel=1G-4G:192M,4G-64G:256M,64G-:512M resume=/dev/mapper/rl-swap rd.lvm.lv=rl/root rd.lvm.lv=rl
/swap rd.lvm.lv=rl/usr rhgb quiet
Jan 12 03:13:37 eagal01p kernel: x86/fpu: Supporting XSAVE feature 0x001: ‘x87 floating point registers’
Jan 12 03:13:37 eagal01p kernel: x86/fpu: Supporting XSAVE feature 0x002: ‘SSE registers’
Jan 12 03:13:37 eagal01p kernel: x86/fpu: Supporting XSAVE feature 0x004: ‘AVX registers’
Jan 12 03:13:37 eagal01p kernel: x86/fpu: Supporting XSAVE feature 0x008: ‘MPX bounds registers’
Jan 12 03:13:37 eagal01p kernel: x86/fpu: Supporting XSAVE feature 0x010: ‘MPX CSR’
Jan 12 03:13:37 eagal01p kernel: x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256
Jan 12 03:13:37 eagal01p kernel: x86/fpu: xstate_offset[3]: 832, xstate_sizes[3]: 64
Jan 12 03:13:37 eagal01p kernel: x86/fpu: xstate_offset[4]: 896, xstate_sizes[4]: 64
Jan 12 03:13:37 eagal01p kernel: x86/fpu: Enabled xstate features 0x1f, context size is 960 bytes, using ‘compacted’ format.
Jan 12 03:13:37 eagal01p kernel: signal: max sigframe size: 2032
Jan 12 03:13:37 eagal01p kernel: BIOS-provided physical RAM map:
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009c3ff] usable
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x000000000009c400-0x000000000009ffff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x0000000000100000-0x00000000c9c4dfff] usable
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000c9c4e000-0x00000000c9c4efff] ACPI NVS
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000c9c4f000-0x00000000c9c4ffff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000c9c50000-0x00000000d97dffff] usable
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000d97e0000-0x00000000dae16fff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000dae17000-0x00000000dae5afff] ACPI data
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000dae5b000-0x00000000db78efff] ACPI NVS
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000db78f000-0x00000000dbdfefff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000dbdff000-0x00000000dbdfffff] usable
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000dbe00000-0x00000000dfffffff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000fe000000-0x00000000fe010fff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
Jan 12 03:13:37 eagal01p kernel: BIOS-e820: [mem 0x0000000100000000-0x000000041dffffff] usable
Jan 12 03:13:37 eagal01p kernel: NX (Execute Disable) protection: active
Jan 12 03:13:37 eagal01p kernel: SMBIOS 3.0.0 present.
Jan 12 03:13:37 eagal01p kernel: DMI: Dell Inc. OptiPlex 5050/0FDY5C, BIOS 1.27.0 09/19/2023
Jan 12 03:13:37 eagal01p kernel: tsc: Detected 3200.000 MHz processor
Jan 12 03:13:37 eagal01p kernel: tsc: Detected 3199.980 MHz TSC
Jan 12 03:13:37 eagal01p kernel: last_pfn = 0x41e000 max_arch_pfn = 0x400000000
Jan 12 03:13:37 eagal01p kernel: x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT
Jan 12 03:13:37 eagal01p kernel: last_pfn = 0xdbe00 max_arch_pfn = 0x400000000
…
Jan 12 03:13:39 eagal01p systemd[1]: run-credentials-systemd\x2dtmpfiles\x2dsetup\x2ddev.service.mount: Deactivated successfully.
Jan 12 03:13:39 eagal01p systemd[1]: run-credentials-systemd\x2dsysusers.service.mount: Deactivated successfully.
Jan 12 03:13:39 eagal01p systemd[1]: Finished Plymouth switch root service.
Jan 12 03:13:39 eagal01p systemd[1]: initrd-udevadm-cleanup-db.service: Deactivated successfully.
Jan 12 03:13:39 eagal01p systemd[1]: Finished Cleanup udev Database.
Jan 12 03:13:39 eagal01p systemd[1]: Reached target Switch Root.
Jan 12 03:13:39 eagal01p systemd[1]: Starting Switch Root…
Jan 12 03:13:39 eagal01p systemd[1]: Switching root.
Jan 12 03:13:39 eagal01p systemd-journald[258]: Journal stopped
Jan 12 08:13:40 eagal01p systemd-journald[258]: Received SIGTERM from PID 1 (systemd).
Jan 12 08:13:40 eagal01p kernel: SELinux: policy capability network_peer_controls=1
Jan 12 08:13:40 eagal01p kernel: SELinux: policy capability open_perms=1
Jan 12 08:13:40 eagal01p kernel: SELinux: policy capability extended_socket_class=1
Jan 12 08:13:40 eagal01p kernel: SELinux: policy capability always_check_network=0
Jan 12 08:13:40 eagal01p kernel: SELinux: policy capability cgroup_seclabel=1
Jan 12 08:13:40 eagal01p kernel: SELinux: policy capability nnp_nosuid_transition=1
Jan 12 08:13:40 eagal01p kernel: SELinux: policy capability genfs_seclabel_symlinks=1
Jan 12 08:13:40 eagal01p kernel: audit: type=1403 audit(1705047219.977:2): auid=4294967295 ses=4294967295 lsm=selinux res=1
Jan 12 08:13:40 eagal01p systemd[1]: Successfully loaded SELinux policy in 69.265ms.
Jan 12 08:13:40 eagal01p systemd[1]: RTC configured in localtime, applying delta of -300 minutes to system time.