diff options
Diffstat (limited to 'debian/patches-rt/mm-memcontro--Disable-on-PREEMPT_RT.patch')
| -rw-r--r-- | debian/patches-rt/mm-memcontro--Disable-on-PREEMPT_RT.patch | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/debian/patches-rt/mm-memcontro--Disable-on-PREEMPT_RT.patch b/debian/patches-rt/mm-memcontro--Disable-on-PREEMPT_RT.patch new file mode 100644 index 000000000..c25641819 --- /dev/null +++ b/debian/patches-rt/mm-memcontro--Disable-on-PREEMPT_RT.patch @@ -0,0 +1,26 @@ +Subject: mm/memcontrol: Disable on PREEMPT_RT +From: Thomas Gleixner <tglx@linutronix.de> +Date: Sun, 25 Jul 2021 21:35:46 +0200 +Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.15/older/patches-5.15.3-rt21.tar.xz + +559271146efc ("mm/memcg: optimize user context object stock access") is a +classic example of optimizing for the cpu local BKL serialization without a +clear protection scope. + +Disable MEMCG on RT for now. + +Signed-off-by: Thomas Gleixner <tglx@linutronix.de> +--- + init/Kconfig | 1 + + 1 file changed, 1 insertion(+) + +--- a/init/Kconfig ++++ b/init/Kconfig +@@ -938,6 +938,7 @@ config PAGE_COUNTER + + config MEMCG + bool "Memory controller" ++ depends on !PREEMPT_RT + select PAGE_COUNTER + select EVENTFD + help |