| Sourabh Jain | d418b19 | 2019-12-11 21:39:07 +0530 | [diff] [blame] | 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 | |
| 9 | What: /sys/kernel/fadump/enabled |
| 10 | Date: Dec 2019 |
| 11 | Contact: linuxppc-dev@lists.ozlabs.org |
| 12 | Description: read only |
| 13 | Primarily used to identify whether the FADump is enabled in |
| 14 | the kernel or not. |
| 15 | User: Kdump service |
| 16 | |
| 17 | What: /sys/kernel/fadump/registered |
| 18 | Date: Dec 2019 |
| 19 | Contact: linuxppc-dev@lists.ozlabs.org |
| 20 | Description: read/write |
| 21 | Helps to control the dump collect feature from userspace. |
| 22 | Setting 1 to this file enables the system to collect the |
| 23 | dump and 0 to disable it. |
| 24 | User: Kdump service |
| 25 | |
| 26 | What: /sys/kernel/fadump/release_mem |
| 27 | Date: Dec 2019 |
| 28 | Contact: linuxppc-dev@lists.ozlabs.org |
| 29 | Description: write only |
| 30 | This is a special sysfs file and only available when |
| 31 | the system is booted to capture the vmcore using FADump. |
| 32 | It is used to release the memory reserved by FADump to |
| 33 | save the crash dump. |
| Sourabh Jain | d8e7345 | 2019-12-11 21:39:10 +0530 | [diff] [blame] | 34 | |
| 35 | What: /sys/kernel/fadump/mem_reserved |
| 36 | Date: Dec 2019 |
| 37 | Contact: linuxppc-dev@lists.ozlabs.org |
| 38 | Description: read only |
| 39 | Provide information about the amount of memory reserved by |
| 40 | FADump to save the crash dump in bytes. |