add kernel coredump and analysis on sonic kernel

Makefile.work

@@ -161,6 +161,7 @@ SONIC_BUILD_INSTRUCTION :=  make \
                            PLATFORM_ARCH=$(PLATFORM_ARCH) \
                            BUILD_NUMBER=$(BUILD_NUMBER) \
                            BUILD_TIMESTAMP=$(BUILD_TIMESTAMP) \
+                           SONIC_ENABLE_KDUMP=$(SONIC_ENABLE_KDUMP) \
                            ENABLE_DHCP_GRAPH_SERVICE=$(ENABLE_DHCP_GRAPH_SERVICE) \
                            SHUTDOWN_BGP_ON_START=$(SHUTDOWN_BGP_ON_START) \
                            SONIC_ENABLE_PFCWD_ON_START=$(ENABLE_PFCWD_ON_START) \

files/build_templates/sonic_debian_extension.j2

@@ -367,6 +367,15 @@ sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get purge
 sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get clean -y
 sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get autoremove -y
 
+# install kernel dump utility
+sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get install -y kdump-tools || true
+sudo sed -i 's/\/MODULES=dep\//\/MODULES=most\//' $FILESYSTEM_ROOT/etc/kernel/postinst.d/kdump-tools
+# TODO : this is a work around due to current kdump-tools package bug, should be removed when bug fixed
+sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get install -y kdump-tools
+{% if sonic_kdump_enable == "y" %}
+sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get install -y crash
+{% endif -%}
+
 {% for file in installer_extra_files.split(' ') -%}
 {% if file.strip() -%}
 {% set src = file.split(':')[0] -%}

files/image_config/platform/rc.local

@@ -326,6 +326,13 @@ if [ -f $FIRST_BOOT_FILE ]; then
         mv /host/grub.cfg /host/grub/grub.cfg
     fi
 
+    if `grep crashkernel=256M /proc/cmdline > /dev/null 2>&1`;
+    then
+        kdump-config unload
+        kdump-config symlinks `uname -r`
+        kdump-config load
+    fi
+
     firsttime_exit
 fi
 

installer/x86_64/install.sh

@@ -125,6 +125,9 @@ if [ "$install_env" = "onie" ]; then
     onie_initrd_tmp=/
 fi
 
+enable_kdump="%%ENABLE_KDUMP%%"
+KDUMP_PARAM="crashkernel=256M"
+
 # The build system prepares this script by replacing %%DEMO-TYPE%%
 # with "OS" or "DIAG".
 demo_type="%%DEMO_TYPE%%"
@@ -536,7 +539,11 @@ trap_push "rm $grub_cfg || true"
 [ -r ./platform.conf ] && . ./platform.conf
 
 DEFAULT_GRUB_SERIAL_COMMAND="serial --port=${CONSOLE_PORT} --speed=${CONSOLE_SPEED} --word=8 --parity=no --stop=1"
-DEFAULT_GRUB_CMDLINE_LINUX="console=tty0 console=ttyS${CONSOLE_DEV},${CONSOLE_SPEED}n8 quiet"
+if [ $enable_kdump = "y" ];then
+    DEFAULT_GRUB_CMDLINE_LINUX="console=tty0 console=ttyS${CONSOLE_DEV},${CONSOLE_SPEED}n8 ${KDUMP_PARAM} quiet"
+else
+    DEFAULT_GRUB_CMDLINE_LINUX="console=tty0 console=ttyS${CONSOLE_DEV},${CONSOLE_SPEED}n8 quiet"
+fi
 GRUB_SERIAL_COMMAND=${GRUB_SERIAL_COMMAND:-"$DEFAULT_GRUB_SERIAL_COMMAND"}
 GRUB_CMDLINE_LINUX=${GRUB_CMDLINE_LINUX:-"$DEFAULT_GRUB_CMDLINE_LINUX"}
 export GRUB_SERIAL_COMMAND

onie-mk-demo.sh

@@ -89,7 +89,8 @@ output_raw_image=$(cat onie-image.conf | grep OUTPUT_RAW_IMAGE | cut -f2 -d"=")
 output_raw_image=$(eval echo $output_raw_image)
 
 # Tailor the demo installer for OS mode or DIAG mode
-sed -i -e "s/%%DEMO_TYPE%%/$demo_type/g" \
+sed -i -e "s/%%ENABLE_KDUMP%%/$sonic_kdump_enable/g" \
+       -e "s/%%DEMO_TYPE%%/$demo_type/g" \
        -e "s/%%IMAGE_VERSION%%/$image_version/g" \
        -e "s/%%ONIE_IMAGE_PART_SIZE%%/$onie_image_part_size/" \
        -e "s/%%EXTRA_CMDLINE_LINUX%%/$EXTRA_CMDLINE_LINUX/" \

slave.mk

@@ -185,6 +185,7 @@ ifeq ($(SONIC_ROUTING_STACK),frr)
 $(info "FRR_USER_UID"                    : "$(FRR_USER_UID)")
 $(info "FRR_USER_GID"                    : "$(FRR_USER_GID)")
 endif
+$(info "ENABLE_KDUMP"                    : "$(SONIC_ENABLE_KDUMP)")
 $(info "ENABLE_SYNCD_RPC"                : "$(ENABLE_SYNCD_RPC)")
 $(info "ENABLE_ORGANIZATION_EXTENSIONS"  : "$(ENABLE_ORGANIZATION_EXTENSIONS)")
 $(info "HTTP_PROXY"                      : "$(HTTP_PROXY)")
@@ -648,6 +649,7 @@ $(addprefix $(TARGET_PATH)/, $(SONIC_INSTALLERS)) : $(TARGET_PATH)/% : \
 	export platform_common_py2_wheel_path="$(addprefix $(PYTHON_WHEELS_PATH)/,$(SONIC_PLATFORM_COMMON_PY2))"
 	export redis_dump_load_py2_wheel_path="$(addprefix $(PYTHON_WHEELS_PATH)/,$(REDIS_DUMP_LOAD_PY2))"
 	export install_debug_image="$(INSTALL_DEBUG_TOOLS)"
+	export sonic_kdump_enable="$(SONIC_ENABLE_KDUMP)"
 
 	$(foreach docker, $($*_DOCKERS),\
 		export docker_image="$(docker)"