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- What: /sys/kernel/fadump/*
- Date: Dec 2019
- Contact: [email protected]
- Description:
- The /sys/kernel/fadump/* is a collection of FADump sysfs
- file provide information about the configuration status
- of Firmware Assisted Dump (FADump).
- What: /sys/kernel/fadump/enabled
- Date: Dec 2019
- Contact: [email protected]
- Description: read only
- Primarily used to identify whether the FADump is enabled in
- the kernel or not.
- User: Kdump service
- What: /sys/kernel/fadump/registered
- Date: Dec 2019
- Contact: [email protected]
- Description: read/write
- Helps to control the dump collect feature from userspace.
- Setting 1 to this file enables the system to collect the
- dump and 0 to disable it.
- User: Kdump service
- What: /sys/kernel/fadump/release_mem
- Date: Dec 2019
- Contact: [email protected]
- Description: write only
- This is a special sysfs file and only available when
- the system is booted to capture the vmcore using FADump.
- It is used to release the memory reserved by FADump to
- save the crash dump.
- What: /sys/kernel/fadump/mem_reserved
- Date: Dec 2019
- Contact: [email protected]
- Description: read only
- Provide information about the amount of memory reserved by
- FADump to save the crash dump in bytes.
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