diff --git a/init/Kconfig b/init/Kconfig
index 282009cb426c95022bb68dc3c139272eb4251fe3..998f1812ea1f4302467c26d721efb40ad9dcc5a1 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -991,6 +991,7 @@ config CFS_BANDWIDTH
 config RT_GROUP_SCHED
 	bool "Group scheduling for SCHED_RR/FIFO"
 	depends on CGROUP_SCHED
+	depends on !PREEMPT_RT
 	default n
 	help
 	  This feature lets you explicitly allocate real CPU bandwidth
@@ -1989,6 +1990,7 @@ choice
 
 config SLAB
 	bool "SLAB"
+	depends on !PREEMPT_RT
 	select HAVE_HARDENED_USERCOPY_ALLOCATOR
 	help
 	  The regular slab allocator that is established and known to work
@@ -2009,6 +2011,7 @@ config SLUB
 config SLOB
 	depends on EXPERT
 	bool "SLOB (Simple Allocator)"
+	depends on !PREEMPT_RT
 	help
 	   SLOB replaces the stock allocator with a drastically simpler
 	   allocator. SLOB is generally more space efficient but
diff --git a/net/Kconfig b/net/Kconfig
index 71e0ddd5c726c4dd7f946552984473b62d885107..0a73d0c2fe4994dc3510a62fdc86bee1b0e1cba3 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -283,7 +283,7 @@ config CGROUP_NET_CLASSID
 
 config NET_RX_BUSY_POLL
 	bool
-	default y
+	default y if !PREEMPT_RT
 
 config BQL
 	bool