diff --git a/app/overlays/repro-build.conf b/app/overlays/repro-build.conf
index d7b434c39660..25e49e619e6c 100644
--- a/app/overlays/repro-build.conf
+++ b/app/overlays/repro-build.conf
@@ -1,2 +1,3 @@
 CONFIG_OUTPUT_DISASSEMBLY=y
 CONFIG_OUTPUT_DISASSEMBLY_WITH_SOURCE=n
+CONFIG_MODULES=n
diff --git a/scripts/xtensa-build-zephyr.py b/scripts/xtensa-build-zephyr.py
index 4914120170c3..531cb58655a0 100755
--- a/scripts/xtensa-build-zephyr.py
+++ b/scripts/xtensa-build-zephyr.py
@@ -945,7 +945,11 @@ def install_lib(sof_lib_dir, abs_build_dir, platform_wconfig):
 			llext_input = entry_path / (llext_base + '.llext')
 			llext_output = entry_path / (llext_file + '.ri')
 
-			sign_cmd = [platform_wconfig.get("rimage.path"), "-o", str(llext_output),
+			# See why the shlex() parsing step is required at
+			# https://docs.zephyrproject.org/latest/develop/west/sign.html#rimage
+			# and in Zephyr commit 030b740bd1ec
+			rimage_cmd = shlex.split(platform_wconfig.get('rimage.path'))[0]
+			sign_cmd = [rimage_cmd, "-o", str(llext_output),
 				    "-e", "-c", str(rimage_cfg),
 				    "-k", str(signing_key), "-l", "-r",
 				    str(llext_input)]
diff --git a/src/audio/eq_iir/eq_iir.c b/src/audio/eq_iir/eq_iir.c
index f81a943a7928..a5b04a418691 100644
--- a/src/audio/eq_iir/eq_iir.c
+++ b/src/audio/eq_iir/eq_iir.c
@@ -98,8 +98,6 @@ static int eq_iir_free(struct processing_module *mod)
 {
 	struct comp_data *cd = module_get_private_data(mod);
 
-	comp_info(mod->dev, "eq_iir_free()");
-
 	eq_iir_free_delaylines(cd);
 	comp_data_blob_handler_free(cd->model_handler);
 
@@ -232,8 +230,6 @@ static int eq_iir_reset(struct processing_module *mod)
 	struct comp_data *cd = module_get_private_data(mod);
 	int i;
 
-	comp_info(mod->dev, "eq_iir_reset()");
-
 	eq_iir_free_delaylines(cd);
 
 	cd->eq_iir_func = NULL;
@@ -269,7 +265,7 @@ SOF_MODULE_INIT(eq_iir, sys_comp_module_eq_iir_interface_init);
 SOF_LLEXT_MOD_ENTRY(eq_iir, &eq_iir_interface);
 
 static const struct sof_man_module_manifest mod_manifest __section(".module") __used =
-	SOF_LLEXT_MODULE_MANIFEST("EQIIR", eq_iir_llext_entry, 1, UUID_EQIIR);
+	SOF_LLEXT_MODULE_MANIFEST("EQIIR", eq_iir_llext_entry, 1, UUID_EQIIR, 40);
 
 SOF_LLEXT_BUILDINFO;
 
diff --git a/src/audio/mixin_mixout/mixin_mixout.c b/src/audio/mixin_mixout/mixin_mixout.c
index 105ef9c8e131..24f30ff31677 100644
--- a/src/audio/mixin_mixout/mixin_mixout.c
+++ b/src/audio/mixin_mixout/mixin_mixout.c
@@ -173,9 +173,7 @@ static int mixout_init(struct processing_module *mod)
 static int mixin_free(struct processing_module *mod)
 {
 	struct mixin_data *md = module_get_private_data(mod);
-	struct comp_dev *dev = mod->dev;
 
-	comp_dbg(dev, "mixin_free()");
 	rfree(md);
 
 	return 0;
@@ -183,7 +181,6 @@ static int mixin_free(struct processing_module *mod)
 
 static int mixout_free(struct processing_module *mod)
 {
-	comp_dbg(mod->dev, "mixout_free()");
 	rfree(module_get_private_data(mod));
 
 	return 0;
@@ -554,9 +551,6 @@ static int mixout_process(struct processing_module *mod,
 static int mixin_reset(struct processing_module *mod)
 {
 	struct mixin_data *mixin_data = module_get_private_data(mod);
-	struct comp_dev *dev = mod->dev;
-
-	comp_dbg(dev, "mixin_reset()");
 
 	mixin_data->mix = NULL;
 	mixin_data->gain_mix = NULL;
@@ -568,8 +562,6 @@ static int mixout_reset(struct processing_module *mod)
 {
 	struct comp_dev *dev = mod->dev;
 
-	comp_dbg(dev, "mixout_reset()");
-
 	/* FIXME: move this to module_adapter_reset() */
 	if (dev->pipeline->source_comp->direction == SOF_IPC_STREAM_PLAYBACK) {
 		int i;
@@ -980,8 +972,8 @@ SOF_LLEXT_MOD_ENTRY(mixout, &mixout_interface);
 
 static const struct sof_man_module_manifest mod_manifest[] __section(".module") __used =
 {
-	SOF_LLEXT_MODULE_MANIFEST("MIXIN", mixin_llext_entry, 1, UUID_MIXIN),
-	SOF_LLEXT_MODULE_MANIFEST("MIXOUT", mixout_llext_entry, 1, UUID_MIXOUT),
+	SOF_LLEXT_MODULE_MANIFEST("MIXIN", mixin_llext_entry, 1, UUID_MIXIN, 30),
+	SOF_LLEXT_MODULE_MANIFEST("MIXOUT", mixout_llext_entry, 1, UUID_MIXOUT, 30),
 };
 
 SOF_LLEXT_BUILDINFO;
diff --git a/src/include/module/module/llext.h b/src/include/module/module/llext.h
index 61532e3fb70f..05b8f0ffb5f5 100644
--- a/src/include/module/module/llext.h
+++ b/src/include/module/module/llext.h
@@ -6,12 +6,13 @@
 #ifndef MODULE_LLEXT_H
 #define MODULE_LLEXT_H
 
-#define SOF_LLEXT_MODULE_MANIFEST(manifest_name, entry, affinity, mod_uuid) \
+#define SOF_LLEXT_MODULE_MANIFEST(manifest_name, entry, affinity, mod_uuid, instances) \
 { \
 	.module = { \
 		.name = manifest_name, \
 		.uuid = {mod_uuid},			  \
 		.entry_point = (uint32_t)(entry), \
+		.instance_max_count = instances, \
 		.type = { \
 			.load_type = SOF_MAN_MOD_TYPE_LLEXT, \
 			.domain_ll = 1, \
diff --git a/src/ipc/ipc4/helper.c b/src/ipc/ipc4/helper.c
index f680feb47156..d427643ef3ea 100644
--- a/src/ipc/ipc4/helper.c
+++ b/src/ipc/ipc4/helper.c
@@ -946,11 +946,11 @@ const struct comp_driver *ipc4_get_drv(const uint8_t *uuid)
 		}
 	}
 
-	tr_err(&comp_tr, "get_drv(): the provided UUID (%08x %08x %08x %08x) can't be found!",
-	       *(uint32_t *)(&uuid[0]),
-	       *(uint32_t *)(&uuid[4]),
-	       *(uint32_t *)(&uuid[8]),
-	       *(uint32_t *)(&uuid[12]));
+	tr_warn(&comp_tr, "get_drv(): the provided UUID (%08x %08x %08x %08x) can't be found!",
+		*(uint32_t *)(&uuid[0]),
+		*(uint32_t *)(&uuid[4]),
+		*(uint32_t *)(&uuid[8]),
+		*(uint32_t *)(&uuid[12]));
 
 out:
 	irq_local_enable(flags);
diff --git a/src/samples/audio/Kconfig b/src/samples/audio/Kconfig
index e853b0668f1a..0338ced15875 100644
--- a/src/samples/audio/Kconfig
+++ b/src/samples/audio/Kconfig
@@ -2,27 +2,27 @@
 
 menu "Audio component samples"
 
-        config SAMPLE_SMART_AMP
-	        tristate "Smart amplifier test component"
-	        default y
-	        help
-	                Select for test smart amplifier component
+	config SAMPLE_SMART_AMP
+		tristate "Smart amplifier test component"
+		default y
+		help
+		  Select for test smart amplifier component
 
-        config SAMPLE_KEYPHRASE
+	config SAMPLE_KEYPHRASE
 		depends on CAVS || IMX || ACE
-	        bool "Keyphrase test component"
-	        default y
-	        help
-	                Select for Keyphrase test component.
-	                Provides basic functionality for use in testing of keyphrase detection pipelines.
+		bool "Keyphrase test component"
+		default y
+		help
+		  Select for Keyphrase test component.
+		  Provides basic functionality for use in testing of keyphrase detection pipelines.
 
 	config KWD_NN_SAMPLE_KEYPHRASE
-                depends on IMX
-                bool "KWD NN Keyphrase test component"
-                default n
-                help
-			Select for KWD NN Keyphrase test component based on neural network.
-			Provides ML functionality for use in testing of keyphrase detection pipelines.
-			Use KWD based on NN as alternative to the default KWD component.
-			Provides neural network as a library.
+		depends on IMX
+		bool "KWD NN Keyphrase test component"
+		default n
+		help
+		  Select for KWD NN Keyphrase test component based on neural network.
+		  Provides ML functionality for use in testing of keyphrase detection pipelines.
+		  Use KWD based on NN as alternative to the default KWD component.
+		  Provides neural network as a library.
 endmenu
diff --git a/src/samples/audio/smart_amp_test_ipc4.c b/src/samples/audio/smart_amp_test_ipc4.c
index 9017408cf235..e2e06db9ea6b 100644
--- a/src/samples/audio/smart_amp_test_ipc4.c
+++ b/src/samples/audio/smart_amp_test_ipc4.c
@@ -157,8 +157,6 @@ static inline int smart_amp_get_config(struct processing_module *mod,
 
 static int smart_amp_free(struct processing_module *mod)
 {
-	LOG_DBG("smart_amp_free()");
-
 #ifndef __SOF_MODULE_SERVICE_BUILD__
 	struct smart_amp_data *sad = module_get_private_data(mod);
 
@@ -320,8 +318,6 @@ static int smart_amp_process(struct processing_module *mod,
 
 static int smart_amp_reset(struct processing_module *mod)
 {
-	LOG_DBG("smart_amp_reset()");
-
 	return 0;
 }
 
@@ -415,6 +411,7 @@ static const struct sof_man_module_manifest main_manifest __section(".module") _
 		.uuid = {0x1E, 0x96, 0x7A, 0x16, 0xE4, 0x8A, 0xEA, 0x11,
 			 0x89, 0xF1, 0x00, 0x0C, 0x29, 0xCE, 0x16, 0x35},
 		.entry_point = (uint32_t)smart_amp_test_llext_entry,
+		.instance_max_count = 1,
 		.type = {
 #ifdef __SOF_MODULE_SERVICE_BUILD__
 			.load_type = SOF_MAN_MOD_TYPE_MODULE,
diff --git a/tools/rimage/src/manifest.c b/tools/rimage/src/manifest.c
index 5fb766c87173..52b328e85ca7 100644
--- a/tools/rimage/src/manifest.c
+++ b/tools/rimage/src/manifest.c
@@ -464,9 +464,6 @@ static int man_module_create_reloc(struct image *image, struct manifest_module *
 	/* stack size ??? convert sizes to PAGES */
 	man_module->instance_bss_size = 1;
 
-	/* max number of instances of this module ?? */
-	man_module->instance_max_count = 1;
-
 	module_print_zones(&module->file);
 
 	/* main module */
diff --git a/zephyr/CMakeLists.txt b/zephyr/CMakeLists.txt
index c9de5f9b5cbb..ce04fee7a366 100644
--- a/zephyr/CMakeLists.txt
+++ b/zephyr/CMakeLists.txt
@@ -90,7 +90,7 @@ function(sof_llext_build module)
 	get_target_property(proc_out_file ${module} pkg_input)
 	add_llext_command(TARGET ${module}
 		POST_BUILD
-		COMMAND ${SOF_BASE}scripts/llext_link_helper.py
+		COMMAND ${PYTHON_EXECUTABLE} ${SOF_BASE}scripts/llext_link_helper.py
 			--text-addr="${SOF_LLEXT_TEXT_ADDR}" -f ${proc_in_file} ${CMAKE_C_COMPILER} --
 			-o ${proc_out_file} ${EXTRA_LINKER_PARAMS}
 	                $<TARGET_OBJECTS:${module}_llext_lib>