Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
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linux
1comment "UBI debugging options"
2 depends on MTD_UBI
3
4config MTD_UBI_DEBUG
5 bool "UBI debugging"
6 depends on SYSFS
7 depends on MTD_UBI
8 select DEBUG_FS
9 select KALLSYMS_ALL
10 help
11 This option enables UBI debugging.
12
13config MTD_UBI_DEBUG_MSG
14 bool "UBI debugging messages"
15 depends on MTD_UBI_DEBUG
16 default n
17 help
18 This option enables UBI debugging messages.
19
20config MTD_UBI_DEBUG_PARANOID
21 bool "Extra self-checks"
22 default n
23 depends on MTD_UBI_DEBUG
24 help
25 This option enables extra checks in UBI code. Note this slows UBI down
26 significantly.
27
28config MTD_UBI_DEBUG_DISABLE_BGT
29 bool "Do not enable the UBI background thread"
30 depends on MTD_UBI_DEBUG
31 default n
32 help
33 This option switches the background thread off by default. The thread
34 may be also be enabled/disabled via UBI sysfs.
35
36config MTD_UBI_DEBUG_USERSPACE_IO
37 bool "Direct user-space write/erase support"
38 default n
39 depends on MTD_UBI_DEBUG
40 help
41 By default, users cannot directly write and erase individual
42 eraseblocks of dynamic volumes, and have to use update operation
43 instead. This option enables this capability - it is very useful for
44 debugging and testing.
45
46config MTD_UBI_DEBUG_EMULATE_BITFLIPS
47 bool "Emulate flash bit-flips"
48 depends on MTD_UBI_DEBUG
49 default n
50 help
51 This option emulates bit-flips with probability 1/50, which in turn
52 causes scrubbing. Useful for debugging and stressing UBI.
53
54config MTD_UBI_DEBUG_EMULATE_WRITE_FAILURES
55 bool "Emulate flash write failures"
56 depends on MTD_UBI_DEBUG
57 default n
58 help
59 This option emulates write failures with probability 1/100. Useful for
60 debugging and testing how UBI handlines errors.
61
62config MTD_UBI_DEBUG_EMULATE_ERASE_FAILURES
63 bool "Emulate flash erase failures"
64 depends on MTD_UBI_DEBUG
65 default n
66 help
67 This option emulates erase failures with probability 1/100. Useful for
68 debugging and testing how UBI handlines errors.
69
70menu "Additional UBI debugging messages"
71 depends on MTD_UBI_DEBUG
72
73config MTD_UBI_DEBUG_MSG_BLD
74 bool "Additional UBI initialization and build messages"
75 default n
76 depends on MTD_UBI_DEBUG
77 help
78 This option enables detailed UBI initialization and device build
79 debugging messages.
80
81config MTD_UBI_DEBUG_MSG_EBA
82 bool "Eraseblock association unit messages"
83 default n
84 depends on MTD_UBI_DEBUG
85 help
86 This option enables debugging messages from the UBI eraseblock
87 association unit.
88
89config MTD_UBI_DEBUG_MSG_WL
90 bool "Wear-leveling unit messages"
91 default n
92 depends on MTD_UBI_DEBUG
93 help
94 This option enables debugging messages from the UBI wear-leveling
95 unit.
96
97config MTD_UBI_DEBUG_MSG_IO
98 bool "Input/output unit messages"
99 default n
100 depends on MTD_UBI_DEBUG
101 help
102 This option enables debugging messages from the UBI input/output unit.
103
104endmenu # UBI debugging messages