tjh.dev
Linux kernel mirror (for testing)
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kernel
os
linux
1config PSTORE
2 bool "Persistent store support"
3 default n
4 help
5 This option enables generic access to platform level
6 persistent storage via "pstore" filesystem that can
7 be mounted as /dev/pstore. Only useful if you have
8 a platform level driver that registers with pstore to
9 provide the data, so you probably should just go say "Y"
10 (or "M") to a platform specific persistent store driver
11 (e.g. ACPI_APEI on X86) which will select this for you.
12 If you don't have a platform persistent store driver,
13 say N.
14
15config PSTORE_CONSOLE
16 bool "Log kernel console messages"
17 depends on PSTORE
18 help
19 When the option is enabled, pstore will log all kernel
20 messages, even if no oops or panic happened.
21
22config PSTORE_FTRACE
23 bool "Persistent function tracer"
24 depends on PSTORE
25 depends on FUNCTION_TRACER
26 help
27 With this option kernel traces function calls into a persistent
28 ram buffer that can be decoded and dumped after reboot through
29 pstore filesystem. It can be used to determine what function
30 was last called before a reset or panic.
31
32 If unsure, say N.
33
34config PSTORE_RAM
35 tristate "Log panic/oops to a RAM buffer"
36 depends on PSTORE
37 depends on HAS_IOMEM
38 depends on HAVE_MEMBLOCK
39 select REED_SOLOMON
40 select REED_SOLOMON_ENC8
41 select REED_SOLOMON_DEC8
42 help
43 This enables panic and oops messages to be logged to a circular
44 buffer in RAM where it can be read back at some later point.
45
46 Note that for historical reasons, the module will be named
47 "ramoops.ko".
48
49 For more information, see Documentation/ramoops.txt.