I host some gaming servers and a few household apps on my proxmox, and this morning there was an unexpected reboot. I dove into the logs and I clearly see -REBOOT- but I'm hoping someone can help me determine why.
Also - can someone please confirm that these root sessions that are opening and closing are just a result of the cron job running.
Also - can someone please confirm that these root sessions that are opening and closing are just a result of the cron job running.
Code:
May 09 03:10:01 pm1 CRON[1016201]: (root) CMD (test -e /run/systemd/system || SERVICE_MODE=1 /sbin/e2scrub_all -A -r)
May 09 03:10:01 pm1 CRON[1016199]: pam_unix(cron:session): session closed for user root
May 09 03:17:02 pm1 CRON[1019546]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
May 09 03:17:02 pm1 CRON[1019548]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)
May 09 03:17:02 pm1 CRON[1019546]: pam_unix(cron:session): session closed for user root
May 09 03:27:08 pm1 kernel: audit: type=1400 audit(1778311628.717:263): apparmor="DENIED" operation="mount" class="mount" info="failed flags match" error=-13 profile="lxc-501_</var/lib/lxc>" name="/run/systemd/unit-root/proc/" pid=1024448 comm="(find)" fstype="proc" srcname="proc" flags="rw, nosuid, nodev, noexec"
May 09 03:27:08 pm1 kernel: audit: type=1400 audit(1778311628.745:264): apparmor="DENIED" operation="mount" class="mount" info="failed flags match" error=-13 profile="lxc-501_</var/lib/lxc>" name="/run/systemd/unit-root/proc/" pid=1024449 comm="(mandb)" fstype="proc" srcname="proc" flags="rw, nosuid, nodev, noexec"
May 09 03:52:04 pm1 smartd[1671]: Device: /dev/bus/0 [megaraid_disk_12] [SAT], SMART Usage Attribute: 190 Airflow_Temperature_Cel changed from 71 to 70
May 09 04:14:16 pm1 systemd[1]: Starting man-db.service - Daily man-db regeneration...
May 09 04:14:16 pm1 systemd[1]: man-db.service: Deactivated successfully.
May 09 04:14:16 pm1 systemd[1]: Finished man-db.service - Daily man-db regeneration.
May 09 04:17:01 pm1 CRON[1048210]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
May 09 04:17:01 pm1 CRON[1048212]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)
May 09 04:17:01 pm1 CRON[1048210]: pam_unix(cron:session): session closed for user root
May 09 04:52:05 pm1 smartd[1671]: Device: /dev/bus/0 [megaraid_disk_12] [SAT], SMART Usage Attribute: 190 Airflow_Temperature_Cel changed from 70 to 69
May 09 05:17:01 pm1 CRON[1076995]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
May 09 05:17:01 pm1 CRON[1076997]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)
May 09 05:17:01 pm1 CRON[1076995]: pam_unix(cron:session): session closed for user root
May 09 05:22:04 pm1 smartd[1671]: Device: /dev/bus/0 [megaraid_disk_12] [SAT], SMART Usage Attribute: 190 Airflow_Temperature_Cel changed from 69 to 70
May 09 06:17:01 pm1 CRON[1105792]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
May 09 06:17:01 pm1 CRON[1105794]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)
May 09 06:17:01 pm1 CRON[1105792]: pam_unix(cron:session): session closed for user root
May 09 06:25:01 pm1 CRON[1109689]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
May 09 06:25:01 pm1 CRON[1109691]: (root) CMD (test -x /usr/sbin/anacron || { cd / && run-parts --report /etc/cron.daily; })
May 09 06:25:01 pm1 CRON[1109689]: pam_unix(cron:session): session closed for user root
May 09 06:33:27 pm1 systemd[1]: Starting apt-daily-upgrade.service - Daily apt upgrade and clean activities...
May 09 06:33:27 pm1 systemd[1]: apt-daily-upgrade.service: Deactivated successfully.
May 09 06:33:27 pm1 systemd[1]: Finished apt-daily-upgrade.service - Daily apt upgrade and clean activities.
May 09 06:52:04 pm1 smartd[1671]: Device: /dev/bus/0 [megaraid_disk_12] [SAT], SMART Usage Attribute: 190 Airflow_Temperature_Cel changed from 70 to 69
May 09 07:17:01 pm1 CRON[1134739]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
May 09 07:17:01 pm1 CRON[1134741]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)
May 09 07:17:01 pm1 CRON[1134739]: pam_unix(cron:session): session closed for user root
May 09 07:52:05 pm1 smartd[1671]: Device: /dev/bus/0 [megaraid_disk_12] [SAT], SMART Usage Attribute: 190 Airflow_Temperature_Cel changed from 69 to 70
May 09 08:17:01 pm1 CRON[1163476]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
May 09 08:17:01 pm1 CRON[1163478]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)
May 09 08:17:01 pm1 CRON[1163476]: pam_unix(cron:session): session closed for user root
May 09 08:30:16 pm1 systemd[1]: Starting systemd-tmpfiles-clean.service - Cleanup of Temporary Directories...
May 09 08:30:16 pm1 systemd-tmpfiles[1169850]: /usr/lib/tmpfiles.d/legacy.conf:14: Duplicate line for path "/run/lock", ignoring.
May 09 08:30:16 pm1 systemd[1]: systemd-tmpfiles-clean.service: Deactivated successfully.
May 09 08:30:16 pm1 systemd[1]: Finished systemd-tmpfiles-clean.service - Cleanup of Temporary Directories.
May 09 08:52:04 pm1 smartd[1671]: Device: /dev/bus/0 [megaraid_disk_12] [SAT], SMART Usage Attribute: 190 Airflow_Temperature_Cel changed from 70 to 69
May 09 09:17:01 pm1 CRON[1192243]: pam_unix(cron:session): session opened for user root(uid=0) by root(uid=0)
May 09 09:17:01 pm1 CRON[1192245]: (root) CMD (cd / && run-parts --report /etc/cron.hourly)
May 09 09:17:01 pm1 CRON[1192243]: pam_unix(cron:session): session closed for user root
-- Reboot --
May 09 09:26:44 pm1 kernel: Linux version 6.14.11-4-pve (build@proxmox) (gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC PMX 6.14.11-4 (2025-10-10T08:04Z) ()
May 09 09:26:44 pm1 kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-6.14.11-4-pve root=/dev/mapper/pve-root ro nomodeset quiet
May 09 09:26:44 pm1 kernel: KERNEL supported cpus:
May 09 09:26:44 pm1 kernel: Intel GenuineIntel
May 09 09:26:44 pm1 kernel: AMD AuthenticAMD
May 09 09:26:44 pm1 kernel: Hygon HygonGenuine
May 09 09:26:44 pm1 kernel: Centaur CentaurHauls
May 09 09:26:44 pm1 kernel: zhaoxin Shanghai
May 09 09:26:44 pm1 kernel: BIOS-provided physical RAM map:
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x0000000000000000-0x000000000009ffff] usable
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x0000000000100000-0x000000007df60fff] usable
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x000000007df61000-0x000000007df9ffff] reserved
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x000000007dfa0000-0x000000007dfaffff] ACPI data
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x000000007dfb0000-0x000000007e2eafff] ACPI NVS
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x000000007e2eb000-0x000000007f352fff] reserved
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x000000007f353000-0x000000007f353fff] usable
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x000000007f354000-0x000000007f3d9fff] ACPI NVS
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x000000007f3da000-0x000000007f7fffff] usable
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x0000000080000000-0x000000008fffffff] reserved
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed3ffff] reserved
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
May 09 09:26:44 pm1 kernel: BIOS-e820: [mem 0x0000000100000000-0x000000307fffffff] usable
May 09 09:26:44 pm1 kernel: NX (Execute Disable) protection: active
May 09 09:26:44 pm1 kernel: APIC: Static calls initialized
May 09 09:26:44 pm1 kernel: e820: update [mem 0x65c70018-0x65c80857] usable ==> usable
May 09 09:26:44 pm1 kernel: e820: update [mem 0x65c60018-0x65c6f857] usable ==> usable
May 09 09:26:44 pm1 kernel: e820: update [mem 0x65c50018-0x65c5f857] usable ==> usable
May 09 09:26:44 pm1 kernel: e820: update [mem 0x65c47018-0x65c4f057] usable ==> usable
May 09 09:26:44 pm1 kernel: extended physical RAM map:
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000000000000-0x000000000009ffff] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000000100000-0x0000000065c47017] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000065c47018-0x0000000065c4f057] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000065c4f058-0x0000000065c50017] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000065c50018-0x0000000065c5f857] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000065c5f858-0x0000000065c60017] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000065c60018-0x0000000065c6f857] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000065c6f858-0x0000000065c70017] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000065c70018-0x0000000065c80857] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000065c80858-0x000000007df60fff] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x000000007df61000-0x000000007df9ffff] reserved
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x000000007dfa0000-0x000000007dfaffff] ACPI data
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x000000007dfb0000-0x000000007e2eafff] ACPI NVS
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x000000007e2eb000-0x000000007f352fff] reserved
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x000000007f353000-0x000000007f353fff] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x000000007f354000-0x000000007f3d9fff] ACPI NVS
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x000000007f3da000-0x000000007f7fffff] usable
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000080000000-0x000000008fffffff] reserved
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x00000000fed1c000-0x00000000fed3ffff] reserved
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
May 09 09:26:44 pm1 kernel: reserve setup_data: [mem 0x0000000100000000-0x000000307fffffff] usable
May 09 09:26:44 pm1 kernel: efi: EFI v2.3.1 by American Megatrends
May 09 09:26:44 pm1 kernel: efi: ESRT=0x7f2fad18 ACPI=0x7e203000 ACPI 2.0=0x7e203000 SMBIOS=0xf04c0 MOKvar=0x7f259000 INITRD=0x6f32d818
May 09 09:26:44 pm1 kernel: efi: Remove mem67: MMIO range=[0x80000000-0x8fffffff] (256MB) from e820 map
May 09 09:26:44 pm1 kernel: e820: remove [mem 0x80000000-0x8fffffff] reserved
May 09 09:26:44 pm1 kernel: efi: Not removing mem68: MMIO range=[0xfed1c000-0xfed1ffff] (16KB) from e820 map
May 09 09:26:44 pm1 kernel: efi: Not removing mem69: MMIO range=[0xfed20000-0xfed3ffff] (128KB) from e820 map
May 09 09:26:44 pm1 kernel: efi: Remove mem70: MMIO range=[0xff000000-0xffffffff] (16MB) from e820 map
May 09 09:26:44 pm1 kernel: e820: remove [mem 0xff000000-0xffffffff] reserved
May 09 09:26:44 pm1 kernel: SMBIOS 2.7 present.
May 09 09:26:44 pm1 kernel: DMI: Supermicro X9DRH-7TF/7F/iTF/iF/X9DRH-7TF/7F/iTF/iF, BIOS 3.0b 04/28/2014
May 09 09:26:44 pm1 kernel: DMI: Memory slots populated: 16/16
May 09 09:26:44 pm1 kernel: secureboot: Secure boot disabled
May 09 09:26:44 pm1 kernel: tsc: Fast TSC calibration using PIT
May 09 09:26:44 pm1 kernel: tsc: Detected 2399.972 MHz processor
May 09 09:26:44 pm1 kernel: e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
May 09 09:26:44 pm1 kernel: e820: remove [mem 0x000a0000-0x000fffff] usable
May 09 09:26:44 pm1 kernel: last_pfn = 0x3080000 max_arch_pfn = 0x400000000
May 09 09:26:44 pm1 kernel: total RAM covered: 196608M