| config PSTORE | |
| bool "Persistent store support" | |
| default n | |
| help | |
| This option enables generic access to platform level | |
| persistent storage via "pstore" filesystem that can | |
| be mounted as /dev/pstore. Only useful if you have | |
| a platform level driver that registers with pstore to | |
| provide the data, so you probably should just go say "Y" | |
| (or "M") to a platform specific persistent store driver | |
| (e.g. ACPI_APEI on X86) which will select this for you. | |
| If you don't have a platform persistent store driver, | |
| say N. | |
| config PSTORE_CONSOLE | |
| bool "Log kernel console messages" | |
| depends on PSTORE | |
| help | |
| When the option is enabled, pstore will log all kernel | |
| messages, even if no oops or panic happened. | |
| config PSTORE_FTRACE | |
| bool "Persistent function tracer" | |
| depends on PSTORE | |
| depends on FUNCTION_TRACER | |
| depends on DEBUG_FS | |
| help | |
| With this option kernel traces function calls into a persistent | |
| ram buffer that can be decoded and dumped after reboot through | |
| pstore filesystem. It can be used to determine what function | |
| was last called before a reset or panic. | |
| If unsure, say N. | |
| config PSTORE_RAM | |
| tristate "Log panic/oops to a RAM buffer" | |
| depends on PSTORE | |
| depends on HAS_IOMEM | |
| depends on HAVE_MEMBLOCK | |
| select REED_SOLOMON | |
| select REED_SOLOMON_ENC8 | |
| select REED_SOLOMON_DEC8 | |
| help | |
| This enables panic and oops messages to be logged to a circular | |
| buffer in RAM where it can be read back at some later point. | |
| Note that for historical reasons, the module will be named | |
| "ramoops.ko". | |
| For more information, see Documentation/ramoops.txt. |