build: switch to a non-prempt kernel

Makefile

@@ -1,6 +1,6 @@
-# LINUXCONFIG ?= linux.config
+LINUXCONFIG ?= linux.config
 # LINUXCONFIG ?= linux-cov.config
-LINUXCONFIG ?= linux-fast.config
+# LINUXCONFIG ?= linux-fast.config
 # LINUXCONFIG ?= linux-fasttrace.config
 # LINUXCONFIG ?= linux-nosmp.config
 

linux-fast.config

@@ -118,8 +118,8 @@ CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
 # end of BPF subsystem
 
 CONFIG_PREEMPT_BUILD=y
-# CONFIG_PREEMPT_NONE is not set
-CONFIG_PREEMPT_VOLUNTARY=y
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
 # CONFIG_PREEMPT is not set
 CONFIG_PREEMPT_COUNT=y
 CONFIG_PREEMPTION=y

linux.config

@@ -19,6 +19,7 @@ CONFIG_TOOLS_SUPPORT_RELR=y
 CONFIG_CC_HAS_ASM_INLINE=y
 CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
 CONFIG_PAHOLE_VERSION=0
+CONFIG_CONSTRUCTORS=y
 CONFIG_IRQ_WORK=y
 CONFIG_BUILDTIME_TABLE_SORT=y
 CONFIG_THREAD_INFO_IN_TASK=y
@@ -118,8 +119,8 @@ CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
 # end of BPF subsystem
 
 CONFIG_PREEMPT_BUILD=y
-# CONFIG_PREEMPT_NONE is not set
-CONFIG_PREEMPT_VOLUNTARY=y
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
 # CONFIG_PREEMPT is not set
 CONFIG_PREEMPT_COUNT=y
 CONFIG_PREEMPTION=y
@@ -292,6 +293,7 @@ CONFIG_ARCH_MMAP_RND_BITS_MAX=32
 CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
 CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
 CONFIG_GENERIC_ISA_DMA=y
+CONFIG_GENERIC_CSUM=y
 CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
 CONFIG_ARCH_MAY_HAVE_PC_FDC=y
@@ -300,6 +302,7 @@ CONFIG_ARCH_HAS_CPU_RELAX=y
 CONFIG_ARCH_HIBERNATION_POSSIBLE=y
 CONFIG_ARCH_SUSPEND_POSSIBLE=y
 CONFIG_AUDIT_ARCH=y
+CONFIG_KASAN_SHADOW_OFFSET=0xdffffc0000000000
 CONFIG_HAVE_INTEL_TXT=y
 CONFIG_X86_64_SMP=y
 CONFIG_ARCH_SUPPORTS_UPROBES=y
@@ -764,7 +767,6 @@ CONFIG_OLD_SIGSUSPEND3=y
 CONFIG_COMPAT_OLD_SIGACTION=y
 CONFIG_COMPAT_32BIT_TIME=y
 CONFIG_HAVE_ARCH_VMAP_STACK=y
-CONFIG_VMAP_STACK=y
 CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
 # CONFIG_RANDOMIZE_KSTACK_OFFSET is not set
 CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
@@ -4994,7 +4996,6 @@ CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
 # CONFIG_UBSAN is not set
 CONFIG_HAVE_ARCH_KCSAN=y
 CONFIG_HAVE_KCSAN_COMPILER=y
-# CONFIG_KCSAN is not set
 # end of Generic Kernel Debugging Instruments
 
 #
@@ -5045,7 +5046,13 @@ CONFIG_HAVE_ARCH_KASAN=y
 CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
 CONFIG_CC_HAS_KASAN_GENERIC=y
 CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
-# CONFIG_KASAN is not set
+CONFIG_KASAN=y
+CONFIG_KASAN_GENERIC=y
+# CONFIG_KASAN_OUTLINE is not set
+CONFIG_KASAN_INLINE=y
+CONFIG_KASAN_STACK=y
+# CONFIG_KASAN_VMALLOC is not set
+# CONFIG_KASAN_MODULE_TEST is not set
 CONFIG_HAVE_ARCH_KFENCE=y
 # CONFIG_KFENCE is not set
 CONFIG_HAVE_ARCH_KMSAN=y