diff --git a/config/always-compiler-options.m4 b/config/always-compiler-options.m4
index 8cfd27535b57..a67319691523 100644
--- a/config/always-compiler-options.m4
+++ b/config/always-compiler-options.m4
@@ -1,247 +1,270 @@
 dnl #
 dnl # Enabled -fsanitize=address if supported by $CC.
 dnl #
 dnl # LDFLAGS needs -fsanitize=address at all times so libraries compiled with
 dnl # it will be linked successfully. CFLAGS will vary by binary being built.
 dnl #
 dnl # The ASAN_OPTIONS environment variable can be used to further control
 dnl # the behavior of binaries and libraries build with -fsanitize=address.
 dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_ASAN], [
 	AC_MSG_CHECKING([whether to build with -fsanitize=address support])
 	AC_ARG_ENABLE([asan],
 		[AS_HELP_STRING([--enable-asan],
 		[Enable -fsanitize=address support  @<:@default=no@:>@])],
 		[],
 		[enable_asan=no])
 
 	AM_CONDITIONAL([ASAN_ENABLED], [test x$enable_asan = xyes])
 	AC_SUBST([ASAN_ENABLED], [$enable_asan])
 	AC_MSG_RESULT($enable_asan)
 
 	AS_IF([ test "$enable_asan" = "yes" ], [
 		AC_MSG_CHECKING([whether $CC supports -fsanitize=address])
 		saved_cflags="$CFLAGS"
 		CFLAGS="$CFLAGS -Werror -fsanitize=address"
 		AC_LINK_IFELSE([
 			AC_LANG_SOURCE([[ int main() { return 0; } ]])
 		], [
 			ASAN_CFLAGS="-fsanitize=address"
 			ASAN_LDFLAGS="-fsanitize=address"
 			ASAN_ZFS="_with_asan"
 			AC_MSG_RESULT([yes])
 		], [
 			AC_MSG_ERROR([$CC does not support -fsanitize=address])
 		])
 		CFLAGS="$saved_cflags"
 	], [
 		ASAN_CFLAGS=""
 		ASAN_LDFLAGS=""
 		ASAN_ZFS="_without_asan"
 	])
 
 	AC_SUBST([ASAN_CFLAGS])
 	AC_SUBST([ASAN_LDFLAGS])
 	AC_SUBST([ASAN_ZFS])
 ])
 
 dnl #
 dnl # Enabled -fsanitize=undefined if supported by cc.
 dnl #
 dnl # LDFLAGS needs -fsanitize=undefined at all times so libraries compiled with
 dnl # it will be linked successfully. CFLAGS will vary by binary being built.
 dnl #
 dnl # The UBSAN_OPTIONS environment variable can be used to further control
 dnl # the behavior of binaries and libraries build with -fsanitize=undefined.
 dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_UBSAN], [
 	AC_MSG_CHECKING([whether to build with -fsanitize=undefined support])
 	AC_ARG_ENABLE([ubsan],
 		[AS_HELP_STRING([--enable-ubsan],
 		[Enable -fsanitize=undefined support  @<:@default=no@:>@])],
 		[],
 		[enable_ubsan=no])
 
 	AM_CONDITIONAL([UBSAN_ENABLED], [test x$enable_ubsan = xyes])
 	AC_SUBST([UBSAN_ENABLED], [$enable_ubsan])
 	AC_MSG_RESULT($enable_ubsan)
 
 	AS_IF([ test "$enable_ubsan" = "yes" ], [
 		AC_MSG_CHECKING([whether $CC supports -fsanitize=undefined])
 		saved_cflags="$CFLAGS"
 		CFLAGS="$CFLAGS -Werror -fsanitize=undefined"
 		AC_LINK_IFELSE([
 			AC_LANG_SOURCE([[ int main() { return 0; } ]])
 		], [
 			UBSAN_CFLAGS="-fsanitize=undefined"
 			UBSAN_LDFLAGS="-fsanitize=undefined"
 			UBSAN_ZFS="_with_ubsan"
 			AC_MSG_RESULT([yes])
 		], [
 			AC_MSG_ERROR([$CC does not support -fsanitize=undefined])
 		])
 		CFLAGS="$saved_cflags"
 	], [
 		UBSAN_CFLAGS=""
 		UBSAN_LDFLAGS=""
 		UBSAN_ZFS="_without_ubsan"
 	])
 
 	AC_SUBST([UBSAN_CFLAGS])
 	AC_SUBST([UBSAN_LDFLAGS])
 	AC_SUBST([UBSAN_ZFS])
 ])
 
 dnl #
 dnl # Check if cc supports -Wframe-larger-than=<size> option.
 dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_FRAME_LARGER_THAN], [
 	AC_MSG_CHECKING([whether $CC supports -Wframe-larger-than=<size>])
 
 	saved_flags="$CFLAGS"
 	CFLAGS="$CFLAGS -Werror -Wframe-larger-than=4096"
 
 	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
 		FRAME_LARGER_THAN="-Wframe-larger-than=4096"
 		AC_MSG_RESULT([yes])
 	], [
 		FRAME_LARGER_THAN=""
 		AC_MSG_RESULT([no])
 	])
 
 	CFLAGS="$saved_flags"
 	AC_SUBST([FRAME_LARGER_THAN])
 ])
 
 dnl #
 dnl # Check if cc supports -Wno-format-truncation option.
 dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_NO_FORMAT_TRUNCATION], [
 	AC_MSG_CHECKING([whether $CC supports -Wno-format-truncation])
 
 	saved_flags="$CFLAGS"
 	CFLAGS="$CFLAGS -Werror -Wno-format-truncation"
 
 	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
 		NO_FORMAT_TRUNCATION=-Wno-format-truncation
 		AC_MSG_RESULT([yes])
 	], [
 		NO_FORMAT_TRUNCATION=
 		AC_MSG_RESULT([no])
 	])
 
 	CFLAGS="$saved_flags"
 	AC_SUBST([NO_FORMAT_TRUNCATION])
 ])
 
 dnl #
 dnl # Check if cc supports -Wno-format-zero-length option.
 dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_NO_FORMAT_ZERO_LENGTH], [
 	AC_MSG_CHECKING([whether $CC supports -Wno-format-zero-length])
 
 	saved_flags="$CFLAGS"
 	CFLAGS="$CFLAGS -Werror -Wno-format-zero-length"
 
 	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
 		NO_FORMAT_ZERO_LENGTH=-Wno-format-zero-length
 		AC_MSG_RESULT([yes])
 	], [
 		NO_FORMAT_ZERO_LENGTH=
 		AC_MSG_RESULT([no])
 	])
 
 	CFLAGS="$saved_flags"
 	AC_SUBST([NO_FORMAT_ZERO_LENGTH])
 ])
 
 dnl #
 dnl # Check if cc supports -Wno-clobbered option.
 dnl #
 dnl # We actually invoke it with the -Wclobbered option
 dnl # and infer the 'no-' version does or doesn't exist based upon
 dnl # the results.  This is required because when checking any of
 dnl # no- prefixed options gcc always returns success.
 dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_NO_CLOBBERED], [
 	AC_MSG_CHECKING([whether $CC supports -Wno-clobbered])
 
 	saved_flags="$CFLAGS"
 	CFLAGS="$CFLAGS -Werror -Wclobbered"
 
 	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
 		NO_CLOBBERED=-Wno-clobbered
 		AC_MSG_RESULT([yes])
 	], [
 		NO_CLOBBERED=
 		AC_MSG_RESULT([no])
 	])
 
 	CFLAGS="$saved_flags"
 	AC_SUBST([NO_CLOBBERED])
 ])
 
 dnl #
 dnl # Check if cc supports -Wimplicit-fallthrough option.
 dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_IMPLICIT_FALLTHROUGH], [
 	AC_MSG_CHECKING([whether $CC supports -Wimplicit-fallthrough])
 
 	saved_flags="$CFLAGS"
 	CFLAGS="$CFLAGS -Werror -Wimplicit-fallthrough"
 
 	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
 		IMPLICIT_FALLTHROUGH=-Wimplicit-fallthrough
 		AC_DEFINE([HAVE_IMPLICIT_FALLTHROUGH], 1,
 			[Define if compiler supports -Wimplicit-fallthrough])
 		AC_MSG_RESULT([yes])
 	], [
 		IMPLICIT_FALLTHROUGH=
 		AC_MSG_RESULT([no])
 	])
 
 	CFLAGS="$saved_flags"
 	AC_SUBST([IMPLICIT_FALLTHROUGH])
 ])
 
+dnl #
+dnl # Check if cc supports -Winfinite-recursion option.
+dnl #
+AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_INFINITE_RECURSION], [
+	AC_MSG_CHECKING([whether $CC supports -Winfinite-recursion])
+
+	saved_flags="$CFLAGS"
+	CFLAGS="$CFLAGS -Werror -Winfinite-recursion"
+
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
+		INFINITE_RECURSION=-Winfinite-recursion
+		AC_DEFINE([HAVE_INFINITE_RECURSION], 1,
+			[Define if compiler supports -Winfinite-recursion])
+		AC_MSG_RESULT([yes])
+	], [
+		INFINITE_RECURSION=
+		AC_MSG_RESULT([no])
+	])
+
+	CFLAGS="$saved_flags"
+	AC_SUBST([INFINITE_RECURSION])
+])
+
 dnl #
 dnl # Check if cc supports -fno-omit-frame-pointer option.
 dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_NO_OMIT_FRAME_POINTER], [
 	AC_MSG_CHECKING([whether $CC supports -fno-omit-frame-pointer])
 
 	saved_flags="$CFLAGS"
 	CFLAGS="$CFLAGS -Werror -fno-omit-frame-pointer"
 
 	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
 		NO_OMIT_FRAME_POINTER=-fno-omit-frame-pointer
 		AC_MSG_RESULT([yes])
 	], [
 		NO_OMIT_FRAME_POINTER=
 		AC_MSG_RESULT([no])
 	])
 
 	CFLAGS="$saved_flags"
 	AC_SUBST([NO_OMIT_FRAME_POINTER])
 ])
 
 dnl #
 dnl # Check if cc supports -fno-ipa-sra option.
 dnl #
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_NO_IPA_SRA], [
 	AC_MSG_CHECKING([whether $CC supports -fno-ipa-sra])
 
 	saved_flags="$CFLAGS"
 	CFLAGS="$CFLAGS -Werror -fno-ipa-sra"
 
 	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
 		NO_IPA_SRA=-fno-ipa-sra
 		AC_MSG_RESULT([yes])
 	], [
 		NO_IPA_SRA=
 		AC_MSG_RESULT([no])
 	])
 
 	CFLAGS="$saved_flags"
 	AC_SUBST([NO_IPA_SRA])
 ])
diff --git a/config/zfs-build.m4 b/config/zfs-build.m4
index b40776da7a70..d14a6bb7ac9f 100644
--- a/config/zfs-build.m4
+++ b/config/zfs-build.m4
@@ -1,640 +1,641 @@
 AC_DEFUN([ZFS_AC_LICENSE], [
 	AC_MSG_CHECKING([zfs author])
 	AC_MSG_RESULT([$ZFS_META_AUTHOR])
 
 	AC_MSG_CHECKING([zfs license])
 	AC_MSG_RESULT([$ZFS_META_LICENSE])
 ])
 
 AC_DEFUN([ZFS_AC_DEBUG_ENABLE], [
 	DEBUG_CFLAGS="-Werror"
 	DEBUG_CPPFLAGS="-DDEBUG -UNDEBUG"
 	DEBUG_LDFLAGS=""
 	DEBUG_ZFS="_with_debug"
 	WITH_DEBUG="true"
 	AC_DEFINE(ZFS_DEBUG, 1, [zfs debugging enabled])
 
 	KERNEL_DEBUG_CFLAGS="-Werror"
 	KERNEL_DEBUG_CPPFLAGS="-DDEBUG -UNDEBUG"
 ])
 
 AC_DEFUN([ZFS_AC_DEBUG_DISABLE], [
 	DEBUG_CFLAGS=""
 	DEBUG_CPPFLAGS="-UDEBUG -DNDEBUG"
 	DEBUG_LDFLAGS=""
 	DEBUG_ZFS="_without_debug"
 	WITH_DEBUG=""
 
 	KERNEL_DEBUG_CFLAGS=""
 	KERNEL_DEBUG_CPPFLAGS="-UDEBUG -DNDEBUG"
 ])
 
 dnl #
 dnl # When debugging is enabled:
 dnl # - Enable all ASSERTs (-DDEBUG)
 dnl # - Promote all compiler warnings to errors (-Werror)
 dnl #
 dnl # (If INVARIANTS is detected, we need to force DEBUG, or strange panics
 dnl # can ensue.)
 dnl #
 AC_DEFUN([ZFS_AC_DEBUG], [
 	AC_MSG_CHECKING([whether assertion support will be enabled])
 	AC_ARG_ENABLE([debug],
 		[AS_HELP_STRING([--enable-debug],
 		[Enable compiler and code assertions @<:@default=no@:>@])],
 		[],
 		[enable_debug=no])
 
 	AS_CASE(["x$enable_debug"],
 		["xyes"],
 		[ZFS_AC_DEBUG_ENABLE],
 		["xno"],
 		[ZFS_AC_DEBUG_DISABLE],
 		[AC_MSG_ERROR([Unknown option $enable_debug])])
 
 	AS_CASE(["x$enable_invariants"],
 		["xyes"],
 		[],
 		["xno"],
 		[],
 		[ZFS_AC_DEBUG_INVARIANTS_DETECT])
 
 	AS_CASE(["x$enable_invariants"],
 		["xyes"],
 		[ZFS_AC_DEBUG_ENABLE],
 		["xno"],
 		[],
 		[AC_MSG_ERROR([Unknown option $enable_invariants])])
 
 	AC_SUBST(DEBUG_CFLAGS)
 	AC_SUBST(DEBUG_CPPFLAGS)
 	AC_SUBST(DEBUG_LDFLAGS)
 	AC_SUBST(DEBUG_ZFS)
 	AC_SUBST(WITH_DEBUG)
 
 	AC_SUBST(KERNEL_DEBUG_CFLAGS)
 	AC_SUBST(KERNEL_DEBUG_CPPFLAGS)
 
 	AC_MSG_RESULT([$enable_debug])
 ])
 
 AC_DEFUN([ZFS_AC_DEBUGINFO_ENABLE], [
 	DEBUG_CFLAGS="$DEBUG_CFLAGS -g -fno-inline $NO_IPA_SRA"
 
 	KERNEL_DEBUG_CFLAGS="$KERNEL_DEBUG_CFLAGS -fno-inline $NO_IPA_SRA"
 	KERNEL_MAKE="$KERNEL_MAKE CONFIG_DEBUG_INFO=y"
 
 	DEBUGINFO_ZFS="_with_debuginfo"
 ])
 
 AC_DEFUN([ZFS_AC_DEBUGINFO_DISABLE], [
 	DEBUGINFO_ZFS="_without_debuginfo"
 ])
 
 AC_DEFUN([ZFS_AC_DEBUGINFO], [
 	AC_MSG_CHECKING([whether debuginfo support will be forced])
 	AC_ARG_ENABLE([debuginfo],
 		[AS_HELP_STRING([--enable-debuginfo],
 		[Force generation of debuginfo @<:@default=no@:>@])],
 		[],
 		[enable_debuginfo=no])
 
 	AS_CASE(["x$enable_debuginfo"],
 		["xyes"],
 		[ZFS_AC_DEBUGINFO_ENABLE],
 		["xno"],
 		[ZFS_AC_DEBUGINFO_DISABLE],
 		[AC_MSG_ERROR([Unknown option $enable_debuginfo])])
 
 	AC_SUBST(DEBUG_CFLAGS)
 	AC_SUBST(DEBUGINFO_ZFS)
 
 	AC_SUBST(KERNEL_DEBUG_CFLAGS)
 	AC_SUBST(KERNEL_MAKE)
 
 	AC_MSG_RESULT([$enable_debuginfo])
 ])
 
 dnl #
 dnl # Disabled by default, provides basic memory tracking.  Track the total
 dnl # number of bytes allocated with kmem_alloc() and freed with kmem_free().
 dnl # Then at module unload time if any bytes were leaked it will be reported
 dnl # on the console.
 dnl #
 AC_DEFUN([ZFS_AC_DEBUG_KMEM], [
 	AC_MSG_CHECKING([whether basic kmem accounting is enabled])
 	AC_ARG_ENABLE([debug-kmem],
 		[AS_HELP_STRING([--enable-debug-kmem],
 		[Enable basic kmem accounting @<:@default=no@:>@])],
 		[],
 		[enable_debug_kmem=no])
 
 	AS_IF([test "x$enable_debug_kmem" = xyes], [
 		KERNEL_DEBUG_CPPFLAGS="${KERNEL_DEBUG_CPPFLAGS} -DDEBUG_KMEM"
 		DEBUG_KMEM_ZFS="_with_debug_kmem"
 	], [
 		DEBUG_KMEM_ZFS="_without_debug_kmem"
 	])
 
 	AC_SUBST(KERNEL_DEBUG_CPPFLAGS)
 	AC_SUBST(DEBUG_KMEM_ZFS)
 
 	AC_MSG_RESULT([$enable_debug_kmem])
 ])
 
 dnl #
 dnl # Disabled by default, provides detailed memory tracking.  This feature
 dnl # also requires --enable-debug-kmem to be set.  When enabled not only will
 dnl # total bytes be tracked but also the location of every kmem_alloc() and
 dnl # kmem_free().  When the module is unloaded a list of all leaked addresses
 dnl # and where they were allocated will be dumped to the console.  Enabling
 dnl # this feature has a significant impact on performance but it makes finding
 dnl # memory leaks straight forward.
 dnl #
 AC_DEFUN([ZFS_AC_DEBUG_KMEM_TRACKING], [
 	AC_MSG_CHECKING([whether detailed kmem tracking is enabled])
 	AC_ARG_ENABLE([debug-kmem-tracking],
 		[AS_HELP_STRING([--enable-debug-kmem-tracking],
 		[Enable detailed kmem tracking  @<:@default=no@:>@])],
 		[],
 		[enable_debug_kmem_tracking=no])
 
 	AS_IF([test "x$enable_debug_kmem_tracking" = xyes], [
 		KERNEL_DEBUG_CPPFLAGS="${KERNEL_DEBUG_CPPFLAGS} -DDEBUG_KMEM_TRACKING"
 		DEBUG_KMEM_TRACKING_ZFS="_with_debug_kmem_tracking"
 	], [
 		DEBUG_KMEM_TRACKING_ZFS="_without_debug_kmem_tracking"
 	])
 
 	AC_SUBST(KERNEL_DEBUG_CPPFLAGS)
 	AC_SUBST(DEBUG_KMEM_TRACKING_ZFS)
 
 	AC_MSG_RESULT([$enable_debug_kmem_tracking])
 ])
 
 AC_DEFUN([ZFS_AC_DEBUG_INVARIANTS_DETECT_FREEBSD], [
 	AS_IF([sysctl -n kern.conftxt | grep -Fqx $'options\tINVARIANTS'],
 		[enable_invariants="yes"],
 		[enable_invariants="no"])
 ])
 
 AC_DEFUN([ZFS_AC_DEBUG_INVARIANTS_DETECT], [
 	AM_COND_IF([BUILD_FREEBSD],
 		[ZFS_AC_DEBUG_INVARIANTS_DETECT_FREEBSD],
 		[enable_invariants="no"])
 ])
 
 dnl #
 dnl # Detected for the running kernel by default, enables INVARIANTS features
 dnl # in the FreeBSD kernel module.  This feature must be used when building
 dnl # for a FreeBSD kernel with "options INVARIANTS" in the KERNCONF and must
 dnl # not be used when the INVARIANTS option is absent.
 dnl #
 AC_DEFUN([ZFS_AC_DEBUG_INVARIANTS], [
 	AC_MSG_CHECKING([whether FreeBSD kernel INVARIANTS checks are enabled])
 	AC_ARG_ENABLE([invariants],
 		[AS_HELP_STRING([--enable-invariants],
 		[Enable FreeBSD kernel INVARIANTS checks [[default: detect]]])],
 		[], [ZFS_AC_DEBUG_INVARIANTS_DETECT])
 
 	AS_IF([test "x$enable_invariants" = xyes],
 		[WITH_INVARIANTS="true"],
 		[WITH_INVARIANTS=""])
 	AC_SUBST(WITH_INVARIANTS)
 
 	AC_MSG_RESULT([$enable_invariants])
 ])
 
 AC_DEFUN([ZFS_AC_CONFIG_ALWAYS], [
 	AX_COUNT_CPUS([])
 	AC_SUBST(CPU_COUNT)
 
 	ZFS_AC_CONFIG_ALWAYS_CC_NO_CLOBBERED
+	ZFS_AC_CONFIG_ALWAYS_CC_INFINITE_RECURSION
 	ZFS_AC_CONFIG_ALWAYS_CC_IMPLICIT_FALLTHROUGH
 	ZFS_AC_CONFIG_ALWAYS_CC_FRAME_LARGER_THAN
 	ZFS_AC_CONFIG_ALWAYS_CC_NO_FORMAT_TRUNCATION
 	ZFS_AC_CONFIG_ALWAYS_CC_NO_FORMAT_ZERO_LENGTH
 	ZFS_AC_CONFIG_ALWAYS_CC_NO_OMIT_FRAME_POINTER
 	ZFS_AC_CONFIG_ALWAYS_CC_NO_IPA_SRA
 	ZFS_AC_CONFIG_ALWAYS_CC_ASAN
 	ZFS_AC_CONFIG_ALWAYS_CC_UBSAN
 	ZFS_AC_CONFIG_ALWAYS_TOOLCHAIN_SIMD
 	ZFS_AC_CONFIG_ALWAYS_SYSTEM
 	ZFS_AC_CONFIG_ALWAYS_ARCH
 	ZFS_AC_CONFIG_ALWAYS_PYTHON
 	ZFS_AC_CONFIG_ALWAYS_PYZFS
 	ZFS_AC_CONFIG_ALWAYS_SED
 	ZFS_AC_CONFIG_ALWAYS_CPPCHECK
 	ZFS_AC_CONFIG_ALWAYS_SHELLCHECK
 	ZFS_AC_CONFIG_ALWAYS_PARALLEL
 ])
 
 AC_DEFUN([ZFS_AC_CONFIG], [
 
         dnl # Remove the previous build test directory.
         rm -Rf build
 
 	ZFS_CONFIG=all
 	AC_ARG_WITH([config],
 		AS_HELP_STRING([--with-config=CONFIG],
 		[Config file 'kernel|user|all|srpm']),
 		[ZFS_CONFIG="$withval"])
 	AC_ARG_ENABLE([linux-builtin],
 		[AS_HELP_STRING([--enable-linux-builtin],
 		[Configure for builtin in-tree kernel modules @<:@default=no@:>@])],
 		[],
 		[enable_linux_builtin=no])
 
 	AC_MSG_CHECKING([zfs config])
 	AC_MSG_RESULT([$ZFS_CONFIG]);
 	AC_SUBST(ZFS_CONFIG)
 
 	ZFS_AC_CONFIG_ALWAYS
 
 	AM_COND_IF([BUILD_LINUX], [
 		AC_ARG_VAR([TEST_JOBS], [simultaneous jobs during configure])
 		if test "x$ac_cv_env_TEST_JOBS_set" != "xset"; then
 			TEST_JOBS=$CPU_COUNT
 		fi
 		AC_SUBST(TEST_JOBS)
 	])
 
 	ZFS_INIT_SYSV=
 	ZFS_INIT_SYSTEMD=
 	ZFS_WANT_MODULES_LOAD_D=
 
 	case "$ZFS_CONFIG" in
 		kernel) ZFS_AC_CONFIG_KERNEL ;;
 		user)	ZFS_AC_CONFIG_USER   ;;
 		all)    ZFS_AC_CONFIG_USER
 			ZFS_AC_CONFIG_KERNEL ;;
 		dist)                        ;;
 		srpm)                        ;;
 		*)
 		AC_MSG_RESULT([Error!])
 		AC_MSG_ERROR([Bad value "$ZFS_CONFIG" for --with-config,
 		              user kernel|user|all|srpm]) ;;
 	esac
 
 	AM_CONDITIONAL([INIT_SYSV],           [test "x$ZFS_INIT_SYSV" = "xyes"])
 	AM_CONDITIONAL([INIT_SYSTEMD],        [test "x$ZFS_INIT_SYSTEMD" = "xyes"])
 	AM_CONDITIONAL([WANT_MODULES_LOAD_D], [test "x$ZFS_WANT_MODULES_LOAD_D" = "xyes"])
 
 	AM_CONDITIONAL([CONFIG_USER],
 	    [test "$ZFS_CONFIG" = user -o "$ZFS_CONFIG" = all])
 	AM_CONDITIONAL([CONFIG_KERNEL],
 	    [test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all] &&
 	    [test "x$enable_linux_builtin" != xyes ])
 	AM_CONDITIONAL([CONFIG_QAT],
 	    [test "$ZFS_CONFIG" = kernel -o "$ZFS_CONFIG" = all] &&
 	    [test "x$qatsrc" != x ])
 	AM_CONDITIONAL([WANT_DEVNAME2DEVID], [test "x$user_libudev" = xyes ])
 	AM_CONDITIONAL([WANT_MMAP_LIBAIO], [test "x$user_libaio" = xyes ])
 	AM_CONDITIONAL([PAM_ZFS_ENABLED], [test "x$enable_pam" = xyes])
 ])
 
 dnl #
 dnl # Check for rpm+rpmbuild to build RPM packages.  If these tools
 dnl # are missing it is non-fatal but you will not be able to build
 dnl # RPM packages and will be warned if you try too.
 dnl #
 dnl # By default the generic spec file will be used because it requires
 dnl # minimal dependencies.  Distribution specific spec files can be
 dnl # placed under the 'rpm/<distribution>' directory and enabled using
 dnl # the --with-spec=<distribution> configure option.
 dnl #
 AC_DEFUN([ZFS_AC_RPM], [
 	RPM=rpm
 	RPMBUILD=rpmbuild
 
 	AC_MSG_CHECKING([whether $RPM is available])
 	AS_IF([tmp=$($RPM --version 2>/dev/null)], [
 		RPM_VERSION=$(echo $tmp | $AWK '/RPM/ { print $[3] }')
 		HAVE_RPM=yes
 		AC_MSG_RESULT([$HAVE_RPM ($RPM_VERSION)])
 	],[
 		HAVE_RPM=no
 		AC_MSG_RESULT([$HAVE_RPM])
 	])
 
 	AC_MSG_CHECKING([whether $RPMBUILD is available])
 	AS_IF([tmp=$($RPMBUILD --version 2>/dev/null)], [
 		RPMBUILD_VERSION=$(echo $tmp | $AWK '/RPM/ { print $[3] }')
 		HAVE_RPMBUILD=yes
 		AC_MSG_RESULT([$HAVE_RPMBUILD ($RPMBUILD_VERSION)])
 	],[
 		HAVE_RPMBUILD=no
 		AC_MSG_RESULT([$HAVE_RPMBUILD])
 	])
 
 	RPM_DEFINE_COMMON='--define "$(DEBUG_ZFS) 1"'
 	RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(DEBUGINFO_ZFS) 1"'
 	RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(DEBUG_KMEM_ZFS) 1"'
 	RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(DEBUG_KMEM_TRACKING_ZFS) 1"'
 	RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(ASAN_ZFS) 1"'
 	RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "$(UBSAN_ZFS) 1"'
 
 	AS_IF([test "x$enable_debuginfo" = xyes], [
 		RPM_DEFINE_COMMON=${RPM_DEFINE_COMMON}' --define "__strip /bin/true"'
 	])
 
 	RPM_DEFINE_UTIL=' --define "_initconfdir $(initconfdir)"'
 
 	dnl # Make the next three RPM_DEFINE_UTIL additions conditional, since
 	dnl # their values may not be set when running:
 	dnl #
 	dnl #	./configure --with-config=srpm
 	dnl #
 	AS_IF([test -n "$dracutdir" ], [
 		RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' --define "_dracutdir $(dracutdir)"'
 	])
 	AS_IF([test -n "$udevdir" ], [
 		RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' --define "_udevdir $(udevdir)"'
 	])
 	AS_IF([test -n "$udevruledir" ], [
 		RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' --define "_udevruledir $(udevruledir)"'
 	])
 	RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_SYSTEMD)'
 	RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_PYZFS)'
 	RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_PAM)'
 	RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_PYTHON_VERSION)'
 	RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' $(DEFINE_PYTHON_PKG_VERSION)'
 
 	dnl # Override default lib directory on Debian/Ubuntu systems.  The
 	dnl # provided /usr/lib/rpm/platform/<arch>/macros files do not
 	dnl # specify the correct path for multiarch systems as described
 	dnl # by the packaging guidelines.
 	dnl #
 	dnl # https://wiki.ubuntu.com/MultiarchSpec
 	dnl # https://wiki.debian.org/Multiarch/Implementation
 	dnl #
 	AS_IF([test "$DEFAULT_PACKAGE" = "deb"], [
 		MULTIARCH_LIBDIR="lib/$(dpkg-architecture -qDEB_HOST_MULTIARCH)"
 		RPM_DEFINE_UTIL=${RPM_DEFINE_UTIL}' --define "_lib $(MULTIARCH_LIBDIR)"'
 		AC_SUBST(MULTIARCH_LIBDIR)
 	])
 
 	dnl # Make RPM_DEFINE_KMOD additions conditional on CONFIG_KERNEL,
 	dnl # since the values will not be set otherwise. The spec files
 	dnl # provide defaults for them.
 	dnl #
 	RPM_DEFINE_KMOD='--define "_wrong_version_format_terminate_build 0"'
 	AM_COND_IF([CONFIG_KERNEL], [
 		RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernels $(LINUX_VERSION)"'
 		RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "ksrc $(LINUX)"'
 		RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kobj $(LINUX_OBJ)"'
 		RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_cc KERNEL_CC=$(KERNEL_CC)"'
 		RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_ld KERNEL_LD=$(KERNEL_LD)"'
 		RPM_DEFINE_KMOD=${RPM_DEFINE_KMOD}' --define "kernel_llvm KERNEL_LLVM=$(KERNEL_LLVM)"'
 	])
 
 	RPM_DEFINE_DKMS=''
 
 	SRPM_DEFINE_COMMON='--define "build_src_rpm 1"'
 	SRPM_DEFINE_UTIL=
 	SRPM_DEFINE_KMOD=
 	SRPM_DEFINE_DKMS=
 
 	RPM_SPEC_DIR="rpm/generic"
 	AC_ARG_WITH([spec],
 		AS_HELP_STRING([--with-spec=SPEC],
 		[Spec files 'generic|redhat']),
 		[RPM_SPEC_DIR="rpm/$withval"])
 
 	AC_MSG_CHECKING([whether spec files are available])
 	AC_MSG_RESULT([yes ($RPM_SPEC_DIR/*.spec.in)])
 
 	AC_SUBST(HAVE_RPM)
 	AC_SUBST(RPM)
 	AC_SUBST(RPM_VERSION)
 
 	AC_SUBST(HAVE_RPMBUILD)
 	AC_SUBST(RPMBUILD)
 	AC_SUBST(RPMBUILD_VERSION)
 
 	AC_SUBST(RPM_SPEC_DIR)
 	AC_SUBST(RPM_DEFINE_UTIL)
 	AC_SUBST(RPM_DEFINE_KMOD)
 	AC_SUBST(RPM_DEFINE_DKMS)
 	AC_SUBST(RPM_DEFINE_COMMON)
 	AC_SUBST(SRPM_DEFINE_UTIL)
 	AC_SUBST(SRPM_DEFINE_KMOD)
 	AC_SUBST(SRPM_DEFINE_DKMS)
 	AC_SUBST(SRPM_DEFINE_COMMON)
 ])
 
 dnl #
 dnl # Check for dpkg+dpkg-buildpackage to build DEB packages.  If these
 dnl # tools are missing it is non-fatal but you will not be able to build
 dnl # DEB packages and will be warned if you try too.
 dnl #
 AC_DEFUN([ZFS_AC_DPKG], [
 	DPKG=dpkg
 	DPKGBUILD=dpkg-buildpackage
 
 	AC_MSG_CHECKING([whether $DPKG is available])
 	AS_IF([tmp=$($DPKG --version 2>/dev/null)], [
 		DPKG_VERSION=$(echo $tmp | $AWK '/Debian/ { print $[7] }')
 		HAVE_DPKG=yes
 		AC_MSG_RESULT([$HAVE_DPKG ($DPKG_VERSION)])
 	],[
 		HAVE_DPKG=no
 		AC_MSG_RESULT([$HAVE_DPKG])
 	])
 
 	AC_MSG_CHECKING([whether $DPKGBUILD is available])
 	AS_IF([tmp=$($DPKGBUILD --version 2>/dev/null)], [
 		DPKGBUILD_VERSION=$(echo $tmp | \
 		    $AWK '/Debian/ { print $[4] }' | cut -f-4 -d'.')
 		HAVE_DPKGBUILD=yes
 		AC_MSG_RESULT([$HAVE_DPKGBUILD ($DPKGBUILD_VERSION)])
 	],[
 		HAVE_DPKGBUILD=no
 		AC_MSG_RESULT([$HAVE_DPKGBUILD])
 	])
 
 	AC_SUBST(HAVE_DPKG)
 	AC_SUBST(DPKG)
 	AC_SUBST(DPKG_VERSION)
 
 	AC_SUBST(HAVE_DPKGBUILD)
 	AC_SUBST(DPKGBUILD)
 	AC_SUBST(DPKGBUILD_VERSION)
 ])
 
 dnl #
 dnl # Until native packaging for various different packing systems
 dnl # can be added the least we can do is attempt to use alien to
 dnl # convert the RPM packages to the needed package type.  This is
 dnl # a hack but so far it has worked reasonable well.
 dnl #
 AC_DEFUN([ZFS_AC_ALIEN], [
 	ALIEN=alien
 
 	AC_MSG_CHECKING([whether $ALIEN is available])
 	AS_IF([tmp=$($ALIEN --version 2>/dev/null)], [
 		ALIEN_VERSION=$(echo $tmp | $AWK '{ print $[3] }')
 		ALIEN_MAJOR=$(echo ${ALIEN_VERSION} | $AWK -F'.' '{ print $[1] }')
 		ALIEN_MINOR=$(echo ${ALIEN_VERSION} | $AWK -F'.' '{ print $[2] }')
 		ALIEN_POINT=$(echo ${ALIEN_VERSION} | $AWK -F'.' '{ print $[3] }')
 		HAVE_ALIEN=yes
 		AC_MSG_RESULT([$HAVE_ALIEN ($ALIEN_VERSION)])
 	],[
 		HAVE_ALIEN=no
 		AC_MSG_RESULT([$HAVE_ALIEN])
 	])
 
 	AC_SUBST(HAVE_ALIEN)
 	AC_SUBST(ALIEN)
 	AC_SUBST(ALIEN_VERSION)
 	AC_SUBST(ALIEN_MAJOR)
 	AC_SUBST(ALIEN_MINOR)
 	AC_SUBST(ALIEN_POINT)
 ])
 
 dnl #
 dnl # Using the VENDOR tag from config.guess set the default
 dnl # package type for 'make pkg': (rpm | deb | tgz)
 dnl #
 AC_DEFUN([ZFS_AC_DEFAULT_PACKAGE], [
 	AC_MSG_CHECKING([os distribution])
 	AC_ARG_WITH([vendor],
 		[AS_HELP_STRING([--with-vendor],
 			[Distribution vendor @<:@default=check@:>@])],
 		[with_vendor=$withval],
 		[with_vendor=check])
 	AS_IF([test "x$with_vendor" = "xcheck"],[
 		if test -f /etc/toss-release ; then
 			VENDOR=toss ;
 		elif test -f /etc/fedora-release ; then
 			VENDOR=fedora ;
 		elif test -f /etc/redhat-release ; then
 			VENDOR=redhat ;
 		elif test -f /etc/gentoo-release ; then
 			VENDOR=gentoo ;
 		elif test -f /etc/arch-release ; then
 			VENDOR=arch ;
 		elif test -f /etc/SuSE-release ; then
 			VENDOR=sles ;
 		elif test -f /etc/slackware-version ; then
 			VENDOR=slackware ;
 		elif test -f /etc/lunar.release ; then
 			VENDOR=lunar ;
 		elif test -f /etc/lsb-release ; then
 			VENDOR=ubuntu ;
 		elif test -f /etc/debian_version ; then
 			VENDOR=debian ;
 		elif test -f /etc/alpine-release ; then
 			VENDOR=alpine ;
 		elif test -f /bin/freebsd-version ; then
 			VENDOR=freebsd ;
 		else
 			VENDOR= ;
 		fi],
 		[ test "x${with_vendor}" != x],[
 			VENDOR="$with_vendor" ],
 		[ VENDOR= ; ]
 	)
 	AC_MSG_RESULT([$VENDOR])
 	AC_SUBST(VENDOR)
 
 	AC_MSG_CHECKING([default package type])
 	case "$VENDOR" in
 		toss)       DEFAULT_PACKAGE=rpm  ;;
 		redhat)     DEFAULT_PACKAGE=rpm  ;;
 		fedora)     DEFAULT_PACKAGE=rpm  ;;
 		gentoo)     DEFAULT_PACKAGE=tgz  ;;
 		alpine)     DEFAULT_PACKAGE=tgz  ;;
 		arch)       DEFAULT_PACKAGE=tgz  ;;
 		sles)       DEFAULT_PACKAGE=rpm  ;;
 		slackware)  DEFAULT_PACKAGE=tgz  ;;
 		lunar)      DEFAULT_PACKAGE=tgz  ;;
 		ubuntu)     DEFAULT_PACKAGE=deb  ;;
 		debian)     DEFAULT_PACKAGE=deb  ;;
 		freebsd)    DEFAULT_PACKAGE=pkg  ;;
 		*)          DEFAULT_PACKAGE=rpm  ;;
 	esac
 	AC_MSG_RESULT([$DEFAULT_PACKAGE])
 	AC_SUBST(DEFAULT_PACKAGE)
 
 	AC_MSG_CHECKING([default init directory])
 	case "$VENDOR" in
 		freebsd)    initdir=$sysconfdir/rc.d  ;;
 		*)          initdir=$sysconfdir/init.d;;
 	esac
 	AC_MSG_RESULT([$initdir])
 	AC_SUBST(initdir)
 
 	AC_MSG_CHECKING([default init script type and shell])
 	case "$VENDOR" in
 		toss)       DEFAULT_INIT_SCRIPT=redhat ;;
 		redhat)     DEFAULT_INIT_SCRIPT=redhat ;;
 		fedora)     DEFAULT_INIT_SCRIPT=fedora ;;
 		gentoo)     DEFAULT_INIT_SCRIPT=openrc ;;
 		alpine)     DEFAULT_INIT_SCRIPT=openrc ;;
 		arch)       DEFAULT_INIT_SCRIPT=lsb    ;;
 		sles)       DEFAULT_INIT_SCRIPT=lsb    ;;
 		slackware)  DEFAULT_INIT_SCRIPT=lsb    ;;
 		lunar)      DEFAULT_INIT_SCRIPT=lunar  ;;
 		ubuntu)     DEFAULT_INIT_SCRIPT=lsb    ;;
 		debian)     DEFAULT_INIT_SCRIPT=lsb    ;;
 		freebsd)    DEFAULT_INIT_SCRIPT=freebsd;;
 		*)          DEFAULT_INIT_SCRIPT=lsb    ;;
 	esac
 
 	case "$VENDOR" in
 		gentoo)     DEFAULT_INIT_SHELL="/sbin/openrc-run";;
 		alpine)     DEFAULT_INIT_SHELL="/sbin/openrc-run";;
 		*)          DEFAULT_INIT_SHELL="/bin/sh"         ;;
 	esac
 
 	AC_MSG_RESULT([$DEFAULT_INIT_SCRIPT:$DEFAULT_INIT_SHELL])
 	AC_SUBST(DEFAULT_INIT_SCRIPT)
 	AC_SUBST(DEFAULT_INIT_SHELL)
 
 	AC_MSG_CHECKING([default nfs server init script])
 	AS_IF([test "$VENDOR" = "debian"],
 		[DEFAULT_INIT_NFS_SERVER="nfs-kernel-server"],
 		[DEFAULT_INIT_NFS_SERVER="nfs"]
 	)
 	AC_MSG_RESULT([$DEFAULT_INIT_NFS_SERVER])
 	AC_SUBST(DEFAULT_INIT_NFS_SERVER)
 
 	AC_MSG_CHECKING([default init config directory])
 	case "$VENDOR" in
 		alpine)     initconfdir=/etc/conf.d    ;;
 		gentoo)     initconfdir=/etc/conf.d    ;;
 		toss)       initconfdir=/etc/sysconfig ;;
 		redhat)     initconfdir=/etc/sysconfig ;;
 		fedora)     initconfdir=/etc/sysconfig ;;
 		sles)       initconfdir=/etc/sysconfig ;;
 		ubuntu)     initconfdir=/etc/default   ;;
 		debian)     initconfdir=/etc/default   ;;
 		freebsd)    initconfdir=$sysconfdir/rc.conf.d;;
 		*)          initconfdir=/etc/default   ;;
 	esac
 	AC_MSG_RESULT([$initconfdir])
 	AC_SUBST(initconfdir)
 
 	AC_MSG_CHECKING([whether initramfs-tools is available])
 	if test -d /usr/share/initramfs-tools ; then
 		RPM_DEFINE_INITRAMFS='--define "_initramfs 1"'
 		AC_MSG_RESULT([yes])
 	else
 		RPM_DEFINE_INITRAMFS=''
 		AC_MSG_RESULT([no])
 	fi
 	AC_SUBST(RPM_DEFINE_INITRAMFS)
 ])
 
 dnl #
 dnl # Default ZFS package configuration
 dnl #
 AC_DEFUN([ZFS_AC_PACKAGE], [
 	ZFS_AC_DEFAULT_PACKAGE
 	AS_IF([test x$VENDOR != xfreebsd], [
 		ZFS_AC_RPM
 		ZFS_AC_DPKG
 		ZFS_AC_ALIEN
 	])
 ])
diff --git a/module/lua/ldo.c b/module/lua/ldo.c
index 727757f7d727..1b1f08b474cd 100644
--- a/module/lua/ldo.c
+++ b/module/lua/ldo.c
@@ -1,747 +1,758 @@
 /*
 ** $Id: ldo.c,v 2.108.1.3 2013/11/08 18:22:50 roberto Exp $
 ** Stack and Call structure of Lua
 ** See Copyright Notice in lua.h
 */
 
 
 #define ldo_c
 #define LUA_CORE
 
 #include <sys/lua/lua.h>
 
 #include "lapi.h"
 #include "ldebug.h"
 #include "ldo.h"
 #include "lfunc.h"
 #include "lgc.h"
 #include "lmem.h"
 #include "lobject.h"
 #include "lopcodes.h"
 #include "lparser.h"
 #include "lstate.h"
 #include "lstring.h"
 #include "ltable.h"
 #include "ltm.h"
 #include "lvm.h"
 #include "lzio.h"
 
 
 
 /* Return the number of bytes available on the stack. */
 #if defined (_KERNEL) && defined(__linux__)
 #include <asm/current.h>
 static intptr_t stack_remaining(void) {
   intptr_t local;
   local = (intptr_t)&local - (intptr_t)current->stack;
   return local;
 }
 #elif defined (_KERNEL) && defined(__FreeBSD__)
 #include <sys/pcpu.h>
 static intptr_t stack_remaining(void) {
   intptr_t local;
   local = (intptr_t)&local - (intptr_t)curthread->td_kstack;
   return local;
 }
 #else
 static intptr_t stack_remaining(void) {
   return INTPTR_MAX;
 }
 #endif
 
 /*
 ** {======================================================
 ** Error-recovery functions
 ** =======================================================
 */
 
 /*
 ** LUAI_THROW/LUAI_TRY define how Lua does exception handling. By
 ** default, Lua handles errors with exceptions when compiling as
 ** C++ code, with _longjmp/_setjmp when asked to use them, and with
 ** longjmp/setjmp otherwise.
 */
 #if !defined(LUAI_THROW)
 
 #ifdef _KERNEL
 
 #ifdef __linux__
 #if defined(__i386__)
 #define	JMP_BUF_CNT	6
 #elif defined(__x86_64__)
 #define	JMP_BUF_CNT	8
 #elif defined(__sparc__) && defined(__arch64__)
 #define	JMP_BUF_CNT	6
 #elif defined(__powerpc__)
 #define	JMP_BUF_CNT	26
 #elif defined(__aarch64__)
 #define	JMP_BUF_CNT	64
 #elif defined(__arm__)
 #define	JMP_BUF_CNT	65
 #elif defined(__mips__)
 #define JMP_BUF_CNT	12
 #elif defined(__s390x__)
 #define JMP_BUF_CNT	18
 #elif defined(__riscv)
 #define JMP_BUF_CNT     64
 #else
 #define	JMP_BUF_CNT	1
 #endif
 
 typedef	struct _label_t { long long unsigned val[JMP_BUF_CNT]; } label_t;
 
 int setjmp(label_t *) __attribute__ ((__nothrow__));
 extern __attribute__((noreturn)) void longjmp(label_t *);
 
 #define LUAI_THROW(L,c)		longjmp(&(c)->b)
 #define LUAI_TRY(L,c,a)		if (setjmp(&(c)->b) == 0) { a }
 #define luai_jmpbuf		label_t
 
 /* unsupported arches will build but not be able to run lua programs */
 #if JMP_BUF_CNT == 1
 int setjmp (label_t *buf) {
 	return 1;
 }
 
 void longjmp (label_t * buf) {
 	for (;;);
 }
 #endif
 #else
 #define LUAI_THROW(L,c)		longjmp((c)->b, 1)
 #define LUAI_TRY(L,c,a)		if (setjmp((c)->b) == 0) { a }
 #define luai_jmpbuf		jmp_buf
 #endif
 
 #else /* _KERNEL */
 
 #if defined(__cplusplus) && !defined(LUA_USE_LONGJMP)
 /* C++ exceptions */
 #define LUAI_THROW(L,c)		throw(c)
 #define LUAI_TRY(L,c,a) \
 	try { a } catch(...) { if ((c)->status == 0) (c)->status = -1; }
 #define luai_jmpbuf		int  /* dummy variable */
 
 #elif defined(LUA_USE_ULONGJMP)
 /* in Unix, try _longjmp/_setjmp (more efficient) */
 #define LUAI_THROW(L,c)		_longjmp((c)->b, 1)
 #define LUAI_TRY(L,c,a)		if (_setjmp((c)->b) == 0) { a }
 #define luai_jmpbuf		jmp_buf
 
 #else
 /* default handling with long jumps */
 #define LUAI_THROW(L,c)		longjmp((c)->b, 1)
 #define LUAI_TRY(L,c,a)		if (setjmp((c)->b) == 0) { a }
 #define luai_jmpbuf		jmp_buf
 
 #endif
 
 #endif /* _KERNEL */
 
 #endif /* LUAI_THROW */
 
 
 /* chain list of long jump buffers */
 struct lua_longjmp {
   struct lua_longjmp *previous;
   luai_jmpbuf b;
   volatile int status;  /* error code */
 };
 
 
 static void seterrorobj (lua_State *L, int errcode, StkId oldtop) {
   switch (errcode) {
     case LUA_ERRMEM: {  /* memory error? */
       setsvalue2s(L, oldtop, G(L)->memerrmsg); /* reuse preregistered msg. */
       break;
     }
     case LUA_ERRERR: {
       setsvalue2s(L, oldtop, luaS_newliteral(L, "error in error handling"));
       break;
     }
     default: {
       setobjs2s(L, oldtop, L->top - 1);  /* error message on current top */
       break;
     }
   }
   L->top = oldtop + 1;
 }
 
+/*
+ * Silence infinite recursion warning which was added to -Wall in gcc 12.1
+ */
+#if defined(HAVE_INFINITE_RECURSION)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Winfinite-recursion"a
+#endif
 
 l_noret luaD_throw (lua_State *L, int errcode) {
   if (L->errorJmp) {  /* thread has an error handler? */
     L->errorJmp->status = errcode;  /* set status */
     LUAI_THROW(L, L->errorJmp);  /* jump to it */
   }
   else {  /* thread has no error handler */
     L->status = cast_byte(errcode);  /* mark it as dead */
     if (G(L)->mainthread->errorJmp) {  /* main thread has a handler? */
       setobjs2s(L, G(L)->mainthread->top++, L->top - 1);  /* copy error obj. */
       luaD_throw(G(L)->mainthread, errcode);  /* re-throw in main thread */
     }
     else {  /* no handler at all; abort */
       if (G(L)->panic) {  /* panic function? */
         lua_unlock(L);
         G(L)->panic(L);  /* call it (last chance to jump out) */
       }
       panic("no error handler");
     }
   }
 }
 
+#if defined(HAVE_INFINITE_RECURSION)
+#pragma GCC diagnostic pop
+#endif
+
 
 int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud) {
   unsigned short oldnCcalls = L->nCcalls;
   struct lua_longjmp lj;
   lj.status = LUA_OK;
   lj.previous = L->errorJmp;  /* chain new error handler */
   L->errorJmp = &lj;
   LUAI_TRY(L, &lj,
     (*f)(L, ud);
   );
   L->errorJmp = lj.previous;  /* restore old error handler */
   L->nCcalls = oldnCcalls;
   return lj.status;
 }
 
 /* }====================================================== */
 
 
 static void correctstack (lua_State *L, TValue *oldstack) {
   CallInfo *ci;
   GCObject *up;
   L->top = (L->top - oldstack) + L->stack;
   for (up = L->openupval; up != NULL; up = up->gch.next)
     gco2uv(up)->v = (gco2uv(up)->v - oldstack) + L->stack;
   for (ci = L->ci; ci != NULL; ci = ci->previous) {
     ci->top = (ci->top - oldstack) + L->stack;
     ci->func = (ci->func - oldstack) + L->stack;
     if (isLua(ci))
       ci->u.l.base = (ci->u.l.base - oldstack) + L->stack;
   }
 }
 
 
 /* some space for error handling */
 #define ERRORSTACKSIZE	(LUAI_MAXSTACK + 200)
 
 
 void luaD_reallocstack (lua_State *L, int newsize) {
   TValue *oldstack = L->stack;
   int lim = L->stacksize;
   lua_assert(newsize <= LUAI_MAXSTACK || newsize == ERRORSTACKSIZE);
   lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK);
   luaM_reallocvector(L, L->stack, L->stacksize, newsize, TValue);
   for (; lim < newsize; lim++)
     setnilvalue(L->stack + lim); /* erase new segment */
   L->stacksize = newsize;
   L->stack_last = L->stack + newsize - EXTRA_STACK;
   correctstack(L, oldstack);
 }
 
 
 void luaD_growstack (lua_State *L, int n) {
   int size = L->stacksize;
   if (size > LUAI_MAXSTACK)  /* error after extra size? */
     luaD_throw(L, LUA_ERRERR);
   else {
     int needed = cast_int(L->top - L->stack) + n + EXTRA_STACK;
     int newsize = 2 * size;
     if (newsize > LUAI_MAXSTACK) newsize = LUAI_MAXSTACK;
     if (newsize < needed) newsize = needed;
     if (newsize > LUAI_MAXSTACK) {  /* stack overflow? */
       luaD_reallocstack(L, ERRORSTACKSIZE);
       luaG_runerror(L, "stack overflow");
     }
     else
       luaD_reallocstack(L, newsize);
   }
 }
 
 
 static int stackinuse (lua_State *L) {
   CallInfo *ci;
   StkId lim = L->top;
   for (ci = L->ci; ci != NULL; ci = ci->previous) {
     lua_assert(ci->top <= L->stack_last);
     if (lim < ci->top) lim = ci->top;
   }
   return cast_int(lim - L->stack) + 1;  /* part of stack in use */
 }
 
 
 void luaD_shrinkstack (lua_State *L) {
   int inuse = stackinuse(L);
   int goodsize = inuse + (inuse / 8) + 2*EXTRA_STACK;
   if (goodsize > LUAI_MAXSTACK) goodsize = LUAI_MAXSTACK;
   if (inuse > LUAI_MAXSTACK ||  /* handling stack overflow? */
       goodsize >= L->stacksize)  /* would grow instead of shrink? */
     condmovestack(L);  /* don't change stack (change only for debugging) */
   else
     luaD_reallocstack(L, goodsize);  /* shrink it */
 }
 
 
 void luaD_hook (lua_State *L, int event, int line) {
   lua_Hook hook = L->hook;
   if (hook && L->allowhook) {
     CallInfo *ci = L->ci;
     ptrdiff_t top = savestack(L, L->top);
     ptrdiff_t ci_top = savestack(L, ci->top);
     lua_Debug ar;
     ar.event = event;
     ar.currentline = line;
     ar.i_ci = ci;
     luaD_checkstack(L, LUA_MINSTACK);  /* ensure minimum stack size */
     ci->top = L->top + LUA_MINSTACK;
     lua_assert(ci->top <= L->stack_last);
     L->allowhook = 0;  /* cannot call hooks inside a hook */
     ci->callstatus |= CIST_HOOKED;
     lua_unlock(L);
     (*hook)(L, &ar);
     lua_lock(L);
     lua_assert(!L->allowhook);
     L->allowhook = 1;
     ci->top = restorestack(L, ci_top);
     L->top = restorestack(L, top);
     ci->callstatus &= ~CIST_HOOKED;
   }
 }
 
 
 static void callhook (lua_State *L, CallInfo *ci) {
   int hook = LUA_HOOKCALL;
   ci->u.l.savedpc++;  /* hooks assume 'pc' is already incremented */
   if (isLua(ci->previous) &&
       GET_OPCODE(*(ci->previous->u.l.savedpc - 1)) == OP_TAILCALL) {
     ci->callstatus |= CIST_TAIL;
     hook = LUA_HOOKTAILCALL;
   }
   luaD_hook(L, hook, -1);
   ci->u.l.savedpc--;  /* correct 'pc' */
 }
 
 
 static StkId adjust_varargs (lua_State *L, Proto *p, int actual) {
   int i;
   int nfixargs = p->numparams;
   StkId base, fixed;
   lua_assert(actual >= nfixargs);
   /* move fixed parameters to final position */
   luaD_checkstack(L, p->maxstacksize);  /* check again for new 'base' */
   fixed = L->top - actual;  /* first fixed argument */
   base = L->top;  /* final position of first argument */
   for (i=0; i<nfixargs; i++) {
     setobjs2s(L, L->top++, fixed + i);
     setnilvalue(fixed + i);
   }
   return base;
 }
 
 
 static StkId tryfuncTM (lua_State *L, StkId func) {
   const TValue *tm = luaT_gettmbyobj(L, func, TM_CALL);
   StkId p;
   ptrdiff_t funcr = savestack(L, func);
   if (!ttisfunction(tm))
     luaG_typeerror(L, func, "call");
   /* Open a hole inside the stack at `func' */
   for (p = L->top; p > func; p--) setobjs2s(L, p, p-1);
   incr_top(L);
   func = restorestack(L, funcr);  /* previous call may change stack */
   setobj2s(L, func, tm);  /* tag method is the new function to be called */
   return func;
 }
 
 
 
 #define next_ci(L) (L->ci = (L->ci->next ? L->ci->next : luaE_extendCI(L)))
 
 
 /*
 ** returns true if function has been executed (C function)
 */
 int luaD_precall (lua_State *L, StkId func, int nresults) {
   lua_CFunction f;
   CallInfo *ci;
   int n;  /* number of arguments (Lua) or returns (C) */
   ptrdiff_t funcr = savestack(L, func);
   switch (ttype(func)) {
     case LUA_TLCF:  /* light C function */
       f = fvalue(func);
       goto Cfunc;
     case LUA_TCCL: {  /* C closure */
       f = clCvalue(func)->f;
      Cfunc:
       luaD_checkstack(L, LUA_MINSTACK);  /* ensure minimum stack size */
       ci = next_ci(L);  /* now 'enter' new function */
       ci->nresults = nresults;
       ci->func = restorestack(L, funcr);
       ci->top = L->top + LUA_MINSTACK;
       lua_assert(ci->top <= L->stack_last);
       ci->callstatus = 0;
       luaC_checkGC(L);  /* stack grow uses memory */
       if (L->hookmask & LUA_MASKCALL)
         luaD_hook(L, LUA_HOOKCALL, -1);
       lua_unlock(L);
       n = (*f)(L);  /* do the actual call */
       lua_lock(L);
       api_checknelems(L, n);
       luaD_poscall(L, L->top - n);
       return 1;
     }
     case LUA_TLCL: {  /* Lua function: prepare its call */
       StkId base;
       Proto *p = clLvalue(func)->p;
       n = cast_int(L->top - func) - 1;  /* number of real arguments */
       luaD_checkstack(L, p->maxstacksize);
       for (; n < p->numparams; n++)
         setnilvalue(L->top++);  /* complete missing arguments */
       if (!p->is_vararg) {
         func = restorestack(L, funcr);
         base = func + 1;
       }
       else {
         base = adjust_varargs(L, p, n);
         func = restorestack(L, funcr);  /* previous call can change stack */
       }
       ci = next_ci(L);  /* now 'enter' new function */
       ci->nresults = nresults;
       ci->func = func;
       ci->u.l.base = base;
       ci->top = base + p->maxstacksize;
       lua_assert(ci->top <= L->stack_last);
       ci->u.l.savedpc = p->code;  /* starting point */
       ci->callstatus = CIST_LUA;
       L->top = ci->top;
       luaC_checkGC(L);  /* stack grow uses memory */
       if (L->hookmask & LUA_MASKCALL)
         callhook(L, ci);
       return 0;
     }
     default: {  /* not a function */
       func = tryfuncTM(L, func);  /* retry with 'function' tag method */
       return luaD_precall(L, func, nresults);  /* now it must be a function */
     }
   }
 }
 
 
 int luaD_poscall (lua_State *L, StkId firstResult) {
   StkId res;
   int wanted, i;
   CallInfo *ci = L->ci;
   if (L->hookmask & (LUA_MASKRET | LUA_MASKLINE)) {
     if (L->hookmask & LUA_MASKRET) {
       ptrdiff_t fr = savestack(L, firstResult);  /* hook may change stack */
       luaD_hook(L, LUA_HOOKRET, -1);
       firstResult = restorestack(L, fr);
     }
     L->oldpc = ci->previous->u.l.savedpc;  /* 'oldpc' for caller function */
   }
   res = ci->func;  /* res == final position of 1st result */
   wanted = ci->nresults;
   L->ci = ci = ci->previous;  /* back to caller */
   /* move results to correct place */
   for (i = wanted; i != 0 && firstResult < L->top; i--)
     setobjs2s(L, res++, firstResult++);
   while (i-- > 0)
     setnilvalue(res++);
   L->top = res;
   return (wanted - LUA_MULTRET);  /* 0 iff wanted == LUA_MULTRET */
 }
 
 
 /*
 ** Call a function (C or Lua). The function to be called is at *func.
 ** The arguments are on the stack, right after the function.
 ** When returns, all the results are on the stack, starting at the original
 ** function position.
 */
 void luaD_call (lua_State *L, StkId func, int nResults, int allowyield) {
   if (++L->nCcalls >= LUAI_MAXCCALLS) {
     if (L->nCcalls == LUAI_MAXCCALLS)
       luaG_runerror(L, "C stack overflow");
     else if (L->nCcalls >= (LUAI_MAXCCALLS + (LUAI_MAXCCALLS>>3)))
       luaD_throw(L, LUA_ERRERR);  /* error while handling stack error */
   }
   intptr_t remaining = stack_remaining();
   if (L->runerror == 0 && remaining < LUAI_MINCSTACK)
     luaG_runerror(L, "C stack overflow");
   if (L->runerror != 0 && remaining < LUAI_MINCSTACK / 2)
     luaD_throw(L, LUA_ERRERR);  /* error while handling stack error */
   if (!allowyield) L->nny++;
   if (!luaD_precall(L, func, nResults))  /* is a Lua function? */
     luaV_execute(L);  /* call it */
   if (!allowyield) L->nny--;
   L->nCcalls--;
 }
 
 
 static void finishCcall (lua_State *L) {
   CallInfo *ci = L->ci;
   int n;
   lua_assert(ci->u.c.k != NULL);  /* must have a continuation */
   lua_assert(L->nny == 0);
   if (ci->callstatus & CIST_YPCALL) {  /* was inside a pcall? */
     ci->callstatus &= ~CIST_YPCALL;  /* finish 'lua_pcall' */
     L->errfunc = ci->u.c.old_errfunc;
   }
   /* finish 'lua_callk'/'lua_pcall' */
   adjustresults(L, ci->nresults);
   /* call continuation function */
   if (!(ci->callstatus & CIST_STAT))  /* no call status? */
     ci->u.c.status = LUA_YIELD;  /* 'default' status */
   lua_assert(ci->u.c.status != LUA_OK);
   ci->callstatus = (ci->callstatus & ~(CIST_YPCALL | CIST_STAT)) | CIST_YIELDED;
   lua_unlock(L);
   n = (*ci->u.c.k)(L);
   lua_lock(L);
   api_checknelems(L, n);
   /* finish 'luaD_precall' */
   luaD_poscall(L, L->top - n);
 }
 
 
 static void unroll (lua_State *L, void *ud) {
   UNUSED(ud);
   for (;;) {
     if (L->ci == &L->base_ci)  /* stack is empty? */
       return;  /* coroutine finished normally */
     if (!isLua(L->ci))  /* C function? */
       finishCcall(L);
     else {  /* Lua function */
       luaV_finishOp(L);  /* finish interrupted instruction */
       luaV_execute(L);  /* execute down to higher C 'boundary' */
     }
   }
 }
 
 
 /*
 ** check whether thread has a suspended protected call
 */
 static CallInfo *findpcall (lua_State *L) {
   CallInfo *ci;
   for (ci = L->ci; ci != NULL; ci = ci->previous) {  /* search for a pcall */
     if (ci->callstatus & CIST_YPCALL)
       return ci;
   }
   return NULL;  /* no pending pcall */
 }
 
 
 static int recover (lua_State *L, int status) {
   StkId oldtop;
   CallInfo *ci = findpcall(L);
   if (ci == NULL) return 0;  /* no recovery point */
   /* "finish" luaD_pcall */
   oldtop = restorestack(L, ci->extra);
   luaF_close(L, oldtop);
   seterrorobj(L, status, oldtop);
   L->ci = ci;
   L->allowhook = ci->u.c.old_allowhook;
   L->nny = 0;  /* should be zero to be yieldable */
   luaD_shrinkstack(L);
   L->errfunc = ci->u.c.old_errfunc;
   ci->callstatus |= CIST_STAT;  /* call has error status */
   ci->u.c.status = status;  /* (here it is) */
   return 1;  /* continue running the coroutine */
 }
 
 
 /*
 ** signal an error in the call to 'resume', not in the execution of the
 ** coroutine itself. (Such errors should not be handled by any coroutine
 ** error handler and should not kill the coroutine.)
 */
 static l_noret resume_error (lua_State *L, const char *msg, StkId firstArg) {
   L->top = firstArg;  /* remove args from the stack */
   setsvalue2s(L, L->top, luaS_new(L, msg));  /* push error message */
   api_incr_top(L);
   luaD_throw(L, -1);  /* jump back to 'lua_resume' */
 }
 
 
 /*
 ** do the work for 'lua_resume' in protected mode
 */
 static void resume_cb (lua_State *L, void *ud) {
   int nCcalls = L->nCcalls;
   StkId firstArg = cast(StkId, ud);
   CallInfo *ci = L->ci;
   if (nCcalls >= LUAI_MAXCCALLS)
     resume_error(L, "C stack overflow", firstArg);
   if (L->status == LUA_OK) {  /* may be starting a coroutine */
     if (ci != &L->base_ci)  /* not in base level? */
       resume_error(L, "cannot resume non-suspended coroutine", firstArg);
     /* coroutine is in base level; start running it */
     if (!luaD_precall(L, firstArg - 1, LUA_MULTRET))  /* Lua function? */
       luaV_execute(L);  /* call it */
   }
   else if (L->status != LUA_YIELD)
     resume_error(L, "cannot resume dead coroutine", firstArg);
   else {  /* resuming from previous yield */
     L->status = LUA_OK;
     ci->func = restorestack(L, ci->extra);
     if (isLua(ci))  /* yielded inside a hook? */
       luaV_execute(L);  /* just continue running Lua code */
     else {  /* 'common' yield */
       if (ci->u.c.k != NULL) {  /* does it have a continuation? */
         int n;
         ci->u.c.status = LUA_YIELD;  /* 'default' status */
         ci->callstatus |= CIST_YIELDED;
         lua_unlock(L);
         n = (*ci->u.c.k)(L);  /* call continuation */
         lua_lock(L);
         api_checknelems(L, n);
         firstArg = L->top - n;  /* yield results come from continuation */
       }
       luaD_poscall(L, firstArg);  /* finish 'luaD_precall' */
     }
     unroll(L, NULL);
   }
   lua_assert(nCcalls == L->nCcalls);
 }
 
 
 LUA_API int lua_resume (lua_State *L, lua_State *from, int nargs) {
   int status;
   int oldnny = L->nny;  /* save 'nny' */
   lua_lock(L);
   luai_userstateresume(L, nargs);
   L->nCcalls = (from) ? from->nCcalls + 1 : 1;
   L->nny = 0;  /* allow yields */
   api_checknelems(L, (L->status == LUA_OK) ? nargs + 1 : nargs);
   status = luaD_rawrunprotected(L, resume_cb, L->top - nargs);
   if (status == -1)  /* error calling 'lua_resume'? */
     status = LUA_ERRRUN;
   else {  /* yield or regular error */
     while (status != LUA_OK && status != LUA_YIELD) {  /* error? */
       if (recover(L, status))  /* recover point? */
         status = luaD_rawrunprotected(L, unroll, NULL);  /* run continuation */
       else {  /* unrecoverable error */
         L->status = cast_byte(status);  /* mark thread as `dead' */
         seterrorobj(L, status, L->top);
         L->ci->top = L->top;
         break;
       }
     }
     lua_assert(status == L->status);
   }
   L->nny = oldnny;  /* restore 'nny' */
   L->nCcalls--;
   lua_assert(L->nCcalls == ((from) ? from->nCcalls : 0));
   lua_unlock(L);
   return status;
 }
 
 
 LUA_API int lua_yieldk (lua_State *L, int nresults, int ctx, lua_CFunction k) {
   CallInfo *ci = L->ci;
   luai_userstateyield(L, nresults);
   lua_lock(L);
   api_checknelems(L, nresults);
   if (L->nny > 0) {
     if (L != G(L)->mainthread)
       luaG_runerror(L, "attempt to yield across a C-call boundary");
     else
       luaG_runerror(L, "attempt to yield from outside a coroutine");
   }
   L->status = LUA_YIELD;
   ci->extra = savestack(L, ci->func);  /* save current 'func' */
   if (isLua(ci)) {  /* inside a hook? */
     api_check(L, k == NULL, "hooks cannot continue after yielding");
   }
   else {
     if ((ci->u.c.k = k) != NULL)  /* is there a continuation? */
       ci->u.c.ctx = ctx;  /* save context */
     ci->func = L->top - nresults - 1;  /* protect stack below results */
     luaD_throw(L, LUA_YIELD);
   }
   lua_assert(ci->callstatus & CIST_HOOKED);  /* must be inside a hook */
   lua_unlock(L);
   return 0;  /* return to 'luaD_hook' */
 }
 
 
 int luaD_pcall (lua_State *L, Pfunc func, void *u,
                 ptrdiff_t old_top, ptrdiff_t ef) {
   int status;
   CallInfo *old_ci = L->ci;
   lu_byte old_allowhooks = L->allowhook;
   unsigned short old_nny = L->nny;
   ptrdiff_t old_errfunc = L->errfunc;
   L->errfunc = ef;
   status = luaD_rawrunprotected(L, func, u);
   if (status != LUA_OK) {  /* an error occurred? */
     StkId oldtop = restorestack(L, old_top);
     luaF_close(L, oldtop);  /* close possible pending closures */
     seterrorobj(L, status, oldtop);
     L->ci = old_ci;
     L->allowhook = old_allowhooks;
     L->nny = old_nny;
     luaD_shrinkstack(L);
   }
   L->errfunc = old_errfunc;
   return status;
 }
 
 
 
 /*
 ** Execute a protected parser.
 */
 struct SParser {  /* data to `f_parser' */
   ZIO *z;
   Mbuffer buff;  /* dynamic structure used by the scanner */
   Dyndata dyd;  /* dynamic structures used by the parser */
   const char *mode;
   const char *name;
 };
 
 
 static void checkmode (lua_State *L, const char *mode, const char *x) {
   if (mode && strchr(mode, x[0]) == NULL) {
     luaO_pushfstring(L,
        "attempt to load a %s chunk (mode is " LUA_QS ")", x, mode);
     luaD_throw(L, LUA_ERRSYNTAX);
   }
 }
 
 
 static void f_parser (lua_State *L, void *ud) {
   int i;
   Closure *cl;
   struct SParser *p = cast(struct SParser *, ud);
   int c = zgetc(p->z);  /* read first character */
   lua_assert(c != LUA_SIGNATURE[0]);	/* binary not supported */
   checkmode(L, p->mode, "text");
   cl = luaY_parser(L, p->z, &p->buff, &p->dyd, p->name, c);
   lua_assert(cl->l.nupvalues == cl->l.p->sizeupvalues);
   for (i = 0; i < cl->l.nupvalues; i++) {  /* initialize upvalues */
     UpVal *up = luaF_newupval(L);
     cl->l.upvals[i] = up;
     luaC_objbarrier(L, cl, up);
   }
 }
 
 
 int luaD_protectedparser (lua_State *L, ZIO *z, const char *name,
                                         const char *mode) {
   struct SParser p;
   int status;
   L->nny++;  /* cannot yield during parsing */
   p.z = z; p.name = name; p.mode = mode;
   p.dyd.actvar.arr = NULL; p.dyd.actvar.size = 0;
   p.dyd.gt.arr = NULL; p.dyd.gt.size = 0;
   p.dyd.label.arr = NULL; p.dyd.label.size = 0;
   luaZ_initbuffer(L, &p.buff);
   status = luaD_pcall(L, f_parser, &p, savestack(L, L->top), L->errfunc);
   luaZ_freebuffer(L, &p.buff);
   luaM_freearray(L, p.dyd.actvar.arr, p.dyd.actvar.size);
   luaM_freearray(L, p.dyd.gt.arr, p.dyd.gt.size);
   luaM_freearray(L, p.dyd.label.arr, p.dyd.label.size);
   L->nny--;
   return status;
 }