sysfs-kernel-fadump 1.3 KB

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  1. What: /sys/kernel/fadump/*
  2. Date: Dec 2019
  3. Contact: linuxppc-dev@lists.ozlabs.org
  4. Description:
  5. The /sys/kernel/fadump/* is a collection of FADump sysfs
  6. file provide information about the configuration status
  7. of Firmware Assisted Dump (FADump).
  8. What: /sys/kernel/fadump/enabled
  9. Date: Dec 2019
  10. Contact: linuxppc-dev@lists.ozlabs.org
  11. Description: read only
  12. Primarily used to identify whether the FADump is enabled in
  13. the kernel or not.
  14. User: Kdump service
  15. What: /sys/kernel/fadump/registered
  16. Date: Dec 2019
  17. Contact: linuxppc-dev@lists.ozlabs.org
  18. Description: read/write
  19. Helps to control the dump collect feature from userspace.
  20. Setting 1 to this file enables the system to collect the
  21. dump and 0 to disable it.
  22. User: Kdump service
  23. What: /sys/kernel/fadump/release_mem
  24. Date: Dec 2019
  25. Contact: linuxppc-dev@lists.ozlabs.org
  26. Description: write only
  27. This is a special sysfs file and only available when
  28. the system is booted to capture the vmcore using FADump.
  29. It is used to release the memory reserved by FADump to
  30. save the crash dump.
  31. What: /sys/kernel/fadump/mem_reserved
  32. Date: Dec 2019
  33. Contact: linuxppc-dev@lists.ozlabs.org
  34. Description: read only
  35. Provide information about the amount of memory reserved by
  36. FADump to save the crash dump in bytes.