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authorThomas Hellström <thomas.hellstrom@linux.intel.com>2025-12-19 11:51:22 +0100
committerThomas Hellström <thomas.hellstrom@linux.intel.com>2025-12-19 11:51:22 +0100
commit5add3c3c280a35f7e258e9cef7607db5a2e56fdc (patch)
tree22eca9a4a1003a64933980bf76da2fbe8a74f759 /kernel/rcu/Kconfig.debug
parentc7b83a916d62c4d4447d7edf0bc5e06dc2afbdf8 (diff)
parent8f0b4cce4481fb22653697cced8d0d04027cb1e8 (diff)
Merge drm/drm-next into drm-xe-next
Backmerging to bring in 6.19-rc1. An important upstream bugfix and to help unblock PTL CI. Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Diffstat (limited to 'kernel/rcu/Kconfig.debug')
-rw-r--r--kernel/rcu/Kconfig.debug15
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/rcu/Kconfig.debug b/kernel/rcu/Kconfig.debug
index 12e4c64ebae1..625d75392647 100644
--- a/kernel/rcu/Kconfig.debug
+++ b/kernel/rcu/Kconfig.debug
@@ -213,4 +213,19 @@ config RCU_STRICT_GRACE_PERIOD
when looking for certain types of RCU usage bugs, for example,
too-short RCU read-side critical sections.
+
+config RCU_DYNTICKS_TORTURE
+ bool "Minimize RCU dynticks counter size"
+ depends on RCU_EXPERT && !COMPILE_TEST
+ default n
+ help
+ This option sets the width of the dynticks counter to its
+ minimum usable value. This minimum width greatly increases
+ the probability of flushing out bugs involving counter wrap,
+ but it also increases the probability of extending grace period
+ durations. This Kconfig option should therefore be avoided in
+ production due to the consequent increased probability of OOMs.
+
+ This has no value for production and is only for testing.
+
endmenu # "RCU Debugging"