Comment 22 for bug 1978079

root@bu-lab26v-oob:~# cat /etc/mlnx-release
DOCA_2.2.0_BSP_4.2.1_Ubuntu_20.04-2.sru.5.4.0-1070
root@bu-lab26v-oob:~# uname -a
Linux bu-lab26v-oob 5.4.0-1070-bluefield #76-Ubuntu SMP PREEMPT Wed Aug 30 16:56:35 UTC 2023 aarch64 aarch64 aarch64 GNU/Linux
root@bu-lab26v-oob:~# cat /sys/module/pstore/parameters/backend
efi
root@bu-lab26v-oob:~# systemctl status systemd-pstore.service
● systemd-pstore.service - Platform Persistent Storage Archival
     Loaded: loaded (/lib/systemd/system/systemd-pstore.service; enabled; vendor preset: enabled)
     Active: inactive (dead)
  Condition: start condition failed at Tue 2023-09-19 14:16:32 UTC; 1 day 1h ago
             └─ ConditionDirectoryNotEmpty=/sys/fs/pstore was not met
       Docs: man:systemd-pstore(8)

Sep 19 14:16:28 localhost systemd[1]: Condition check resulted in Platform Persistent Storage Archival being skipped.
Sep 19 14:16:32 localhost systemd[1]: Condition check resulted in Platform Persistent Storage Archival being skipped.
root@bu-lab26v-oob:~# echo 1 > /proc/sys/kernel/sysrq
root@bu-lab26v-oob:~# echo 1 > /proc/sys/kernel/panic
root@bu-lab26v-oob:~# echo "c" > /proc/sysrq-trigger

*system rebooted*

root@bu-lab26v-oob:~# ls /sys/fs/pstore
root@bu-lab26v-oob:~# ls /var/lib/systemd/pstore
169522441 169522442
root@bu-lab26v-oob:~# systemctl status systemd-pstore.service
● systemd-pstore.service - Platform Persistent Storage Archival
     Loaded: loaded (/lib/systemd/system/systemd-pstore.service; enabled; vendor preset: enabled)
     Active: active (exited) since Wed 2023-09-20 15:41:29 UTC; 56s ago
       Docs: man:systemd-pstore(8)
    Process: 485 ExecStart=/lib/systemd/systemd-pstore (code=exited, status=0/SUCCESS)
   Main PID: 485 (code=exited, status=0/SUCCESS)

Sep 20 15:41:29 localhost systemd-pstore[485]: PStore dmesg-efi-169522441409001 moved to /var/lib/systemd/pstore/169522441/dmesg-efi-169522441409001
Sep 20 15:41:29 localhost systemd-pstore[485]: PStore dmesg-efi-169522441408001 moved to /var/lib/systemd/pstore/169522441/dmesg-efi-169522441408001
Sep 20 15:41:29 localhost systemd-pstore[485]: PStore dmesg-efi-169522441407001 moved to /var/lib/systemd/pstore/169522441/dmesg-efi-169522441407001
Sep 20 15:41:29 localhost systemd-pstore[485]: PStore dmesg-efi-169522441406001 moved to /var/lib/systemd/pstore/169522441/dmesg-efi-169522441406001
Sep 20 15:41:29 localhost systemd-pstore[485]: PStore dmesg-efi-169522441405001 moved to /var/lib/systemd/pstore/169522441/dmesg-efi-169522441405001
Sep 20 15:41:29 localhost systemd-pstore[485]: PStore dmesg-efi-169522441304001 moved to /var/lib/systemd/pstore/169522441/dmesg-efi-169522441304001
Sep 20 15:41:29 localhost systemd-pstore[485]: PStore dmesg-efi-169522441303001 moved to /var/lib/systemd/pstore/169522441/dmesg-efi-169522441303001
Sep 20 15:41:29 localhost systemd-pstore[485]: PStore dmesg-efi-169522441302001 moved to /var/lib/systemd/pstore/169522441/dmesg-efi-169522441302001
Sep 20 15:41:29 localhost systemd-pstore[485]: PStore dmesg-efi-169522441301001 moved to /var/lib/systemd/pstore/169522441/dmesg-efi-169522441301001
Sep 20 15:41:29 localhost systemd[1]: Finished Platform Persistent Storage Archival.