mirror of https://gitee.com/openkylin/linux.git
90 lines
2.6 KiB
Plaintext
90 lines
2.6 KiB
Plaintext
config PSTORE
|
|
tristate "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.
|
|
|
|
choice
|
|
prompt "Choose compression algorithm"
|
|
depends on PSTORE
|
|
default PSTORE_ZLIB_COMPRESS
|
|
help
|
|
This option chooses compression algorithm.
|
|
|
|
config PSTORE_ZLIB_COMPRESS
|
|
bool "ZLIB"
|
|
select ZLIB_DEFLATE
|
|
select ZLIB_INFLATE
|
|
help
|
|
This option enables ZLIB compression algorithm support.
|
|
|
|
config PSTORE_LZO_COMPRESS
|
|
bool "LZO"
|
|
select LZO_COMPRESS
|
|
select LZO_DECOMPRESS
|
|
help
|
|
This option enables LZO compression algorithm support.
|
|
|
|
config PSTORE_LZ4_COMPRESS
|
|
bool "LZ4"
|
|
select LZ4_COMPRESS
|
|
select LZ4_DECOMPRESS
|
|
help
|
|
This option enables LZ4 compression algorithm support.
|
|
endchoice
|
|
|
|
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_PMSG
|
|
bool "Log user space messages"
|
|
depends on PSTORE
|
|
help
|
|
When the option is enabled, pstore will export a character
|
|
interface /dev/pmsg0 to log user space messages. On reboot
|
|
data can be retrieved from /sys/fs/pstore/pmsg-ramoops-[ID].
|
|
|
|
If unsure, say N.
|
|
|
|
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.
|