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ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
43a0a2a7 PM |
2 | # |
3 | # RCU-related debugging configuration options | |
4 | # | |
5 | ||
6 | menu "RCU Debugging" | |
7 | ||
8 | config PROVE_RCU | |
9 | def_bool PROVE_LOCKING | |
10 | ||
11 | config TORTURE_TEST | |
12 | tristate | |
13 | default n | |
14 | ||
15 | config RCU_PERF_TEST | |
16 | tristate "performance tests for RCU" | |
17 | depends on DEBUG_KERNEL | |
18 | select TORTURE_TEST | |
19 | select SRCU | |
20 | select TASKS_RCU | |
21 | default n | |
22 | help | |
23 | This option provides a kernel module that runs performance | |
24 | tests on the RCU infrastructure. The kernel module may be built | |
25 | after the fact on the running kernel to be tested, if desired. | |
26 | ||
27 | Say Y here if you want RCU performance tests to be built into | |
28 | the kernel. | |
29 | Say M if you want the RCU performance tests to build as a module. | |
30 | Say N if you are unsure. | |
31 | ||
32 | config RCU_TORTURE_TEST | |
33 | tristate "torture tests for RCU" | |
34 | depends on DEBUG_KERNEL | |
35 | select TORTURE_TEST | |
36 | select SRCU | |
37 | select TASKS_RCU | |
38 | default n | |
39 | help | |
40 | This option provides a kernel module that runs torture tests | |
41 | on the RCU infrastructure. The kernel module may be built | |
42 | after the fact on the running kernel to be tested, if desired. | |
43 | ||
44 | Say Y here if you want RCU torture tests to be built into | |
45 | the kernel. | |
46 | Say M if you want the RCU torture tests to build as a module. | |
47 | Say N if you are unsure. | |
48 | ||
49 | config RCU_CPU_STALL_TIMEOUT | |
50 | int "RCU CPU stall timeout in seconds" | |
51 | depends on RCU_STALL_COMMON | |
52 | range 3 300 | |
53 | default 21 | |
54 | help | |
55 | If a given RCU grace period extends more than the specified | |
56 | number of seconds, a CPU stall warning is printed. If the | |
57 | RCU grace period persists, additional CPU stall warnings are | |
58 | printed at more widely spaced intervals. | |
59 | ||
60 | config RCU_TRACE | |
61 | bool "Enable tracing for RCU" | |
62 | depends on DEBUG_KERNEL | |
63 | default y if TREE_RCU | |
64 | select TRACE_CLOCK | |
65 | help | |
66 | This option enables additional tracepoints for ftrace-style | |
67 | event tracing. | |
68 | ||
69 | Say Y here if you want to enable RCU tracing | |
70 | Say N if you are unsure. | |
71 | ||
72 | config RCU_EQS_DEBUG | |
73 | bool "Provide debugging asserts for adding NO_HZ support to an arch" | |
74 | depends on DEBUG_KERNEL | |
75 | help | |
76 | This option provides consistency checks in RCU's handling of | |
77 | NO_HZ. These checks have proven quite helpful in detecting | |
78 | bugs in arch-specific NO_HZ code. | |
79 | ||
80 | Say N here if you need ultimate kernel/user switch latencies | |
81 | Say Y if you are unsure | |
82 | ||
83 | endmenu # "RCU Debugging" |