| Paul E. McKenney | 43a0a2a | 2017-05-17 09:19:44 -0700 | [diff] [blame] | 1 | # |
| 2 | # RCU-related debugging configuration options |
| 3 | # |
| 4 | |
| 5 | menu "RCU Debugging" |
| 6 | |
| 7 | config PROVE_RCU |
| 8 | def_bool PROVE_LOCKING |
| 9 | |
| 10 | config TORTURE_TEST |
| 11 | tristate |
| 12 | default n |
| 13 | |
| 14 | config RCU_PERF_TEST |
| 15 | tristate "performance tests for RCU" |
| 16 | depends on DEBUG_KERNEL |
| 17 | select TORTURE_TEST |
| 18 | select SRCU |
| 19 | select TASKS_RCU |
| 20 | default n |
| 21 | help |
| 22 | This option provides a kernel module that runs performance |
| 23 | tests on the RCU infrastructure. The kernel module may be built |
| 24 | after the fact on the running kernel to be tested, if desired. |
| 25 | |
| 26 | Say Y here if you want RCU performance tests to be built into |
| 27 | the kernel. |
| 28 | Say M if you want the RCU performance tests to build as a module. |
| 29 | Say N if you are unsure. |
| 30 | |
| 31 | config RCU_TORTURE_TEST |
| 32 | tristate "torture tests for RCU" |
| 33 | depends on DEBUG_KERNEL |
| 34 | select TORTURE_TEST |
| 35 | select SRCU |
| 36 | select TASKS_RCU |
| 37 | default n |
| 38 | help |
| 39 | This option provides a kernel module that runs torture tests |
| 40 | on the RCU infrastructure. The kernel module may be built |
| 41 | after the fact on the running kernel to be tested, if desired. |
| 42 | |
| 43 | Say Y here if you want RCU torture tests to be built into |
| 44 | the kernel. |
| 45 | Say M if you want the RCU torture tests to build as a module. |
| 46 | Say N if you are unsure. |
| 47 | |
| 48 | config RCU_CPU_STALL_TIMEOUT |
| 49 | int "RCU CPU stall timeout in seconds" |
| 50 | depends on RCU_STALL_COMMON |
| 51 | range 3 300 |
| 52 | default 21 |
| 53 | help |
| 54 | If a given RCU grace period extends more than the specified |
| 55 | number of seconds, a CPU stall warning is printed. If the |
| 56 | RCU grace period persists, additional CPU stall warnings are |
| 57 | printed at more widely spaced intervals. |
| 58 | |
| 59 | config RCU_TRACE |
| 60 | bool "Enable tracing for RCU" |
| 61 | depends on DEBUG_KERNEL |
| 62 | default y if TREE_RCU |
| 63 | select TRACE_CLOCK |
| 64 | help |
| 65 | This option enables additional tracepoints for ftrace-style |
| 66 | event tracing. |
| 67 | |
| 68 | Say Y here if you want to enable RCU tracing |
| 69 | Say N if you are unsure. |
| 70 | |
| 71 | config RCU_EQS_DEBUG |
| 72 | bool "Provide debugging asserts for adding NO_HZ support to an arch" |
| 73 | depends on DEBUG_KERNEL |
| 74 | help |
| 75 | This option provides consistency checks in RCU's handling of |
| 76 | NO_HZ. These checks have proven quite helpful in detecting |
| 77 | bugs in arch-specific NO_HZ code. |
| 78 | |
| 79 | Say N here if you need ultimate kernel/user switch latencies |
| 80 | Say Y if you are unsure |
| 81 | |
| 82 | endmenu # "RCU Debugging" |