diff options
| author |   Paul E. McKenney <paulmck@kernel.org> | 2020-09-04 11:54:52 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2020-09-04 11:54:52 -0700 |
| commit | 6fe208f63a79f4f726f3be2b78ea3dd40487b657 (patch) | |
| tree | 1b826243b70f09e101081d5ea6dd59aa37fe25a9 /lib/Kconfig.debug | |
| parent | Merge branch 'strictgp.2020.08.24a' into HEAD (diff) | |
| parent | smp: Make symbol 'csd_bug_count' static (diff) | |
| download | linux-dev-6fe208f63a79f4f726f3be2b78ea3dd40487b657.tar.xz linux-dev-6fe208f63a79f4f726f3be2b78ea3dd40487b657.zip | |
Merge branch 'csd.2020.09.04a' into HEAD
csd.2020.09.04a: CPU smp_call_function() torture tests.
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 0c3a6c752ede..4ac6f61b9475 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1377,6 +1377,17 @@ config SCF_TORTURE_TEST module may be built after the fact on the running kernel to be tested, if desired. +config CSD_LOCK_WAIT_DEBUG + bool "Debugging for csd_lock_wait(), called from smp_call_function*()" + depends on DEBUG_KERNEL + depends on 64BIT + default n + help + This option enables debug prints when CPUs are slow to respond + to the smp_call_function*() IPI wrappers. These debug prints + include the IPI handler function currently executing (if any) + and relevant stack traces. + endmenu # lock debugging config TRACE_IRQFLAGS |