pstore-test manual

high

Image Types:
hmi-armhf
Image Deployment:
APT, OSTree
Type:
functional

Description

Test the pstore functionality usage

Execution Steps

  1. For test purpose, you can generate a kernel crash by setting reboot timeout to 10 seconds and trigger a panic:
    2. $ sudo sh -c "echo 1 > /proc/sys/kernel/sysrq"
    $ sudo sh -c "echo 10 > /proc/sys/kernel/panic"
    $ sudo sh -c "echo c > /proc/sysrq-trigger"
  2. When the target reboots enter U-Boot
  3. In U-Boot, logs can be displayed using pstore command.
  4. PStore parameters need to be set during U-Boot configuration and match kernel ramoops parameters
  5. To view the logs in U-Boot, execute the following command to set the pstore location
  6. => pstore set 0x30000000 0x100000 0x2000 0x2000
  7. Then all available dumps can be displayed using:
  8. => pstore display
  9. Make a note of the timestamp of the logs
  10. => boot
  11. After target is booted, logs can be found at /var/lib/systemd/pstore:
    12. $ sudo ls -l /var/lib/systemd/pstore

Expected

After a crash induced reboot, logs can be found at /var/lib/systemd/pstore:

total 0

  -rw------- 1 root root 4084 Mar  1 08:32 console-ramoops-0

  -rw------- 1 root root 4023 Mar  1 08:27 dmesg-ramoops-0

  -rw-r----- 1 root root 4040 Mar  1 08:15 dmesg.txt

Logs saved should be same as what was displayed after running pstore display command