I have an OpenThread application that worked on NCS v1.9.1 and after updating to NCS v2.0.0 (nothing in the source code or kconfig was changed), the application fails to build with a handful of the same error: error: static assertion failed: Insufficient buffer size for CoAP processing!. Here is one of the error's (see build_log.txt attached for the complete build):
[60/823] Building CXX object modules/openthread/build/src/cli/CMakeFiles/openthread-cli-ftd.dir/cli_joiner.cpp.obj
FAILED: modules/openthread/build/src/cli/CMakeFiles/openthread-cli-ftd.dir/cli_joiner.cpp.obj
C:\ncs\toolchains\v2.0.0\opt\zephyr-sdk\arm-zephyr-eabi\bin\arm-zephyr-eabi-g++.exe -DKERNEL -DMBEDTLS_CONFIG_FILE=\"nrf-config.h\" -DMBEDTLS_USER_CONFIG_FILE=\"nrf-config-user.h\" -DNRF5340_XXAA_APPLICATION -DNRF_802154_ACK_TIMEOUT_ENABLED=1 -DNRF_802154_ECB_PRIORITY=-1 -DNRF_802154_ENCRYPTION_ENABLED=1 -DNRF_802154_IE_WRITER_ENABLED=1 -DNRF_802154_INTERNAL_RADIO_IRQ_HANDLING=0 -DNRF_802154_PENDING_EXTENDED_ADDRESSES="" -DNRF_802154_PENDING_SHORT_ADDRESSES="" -DNRF_802154_RX_BUFFERS=16 -DNRF_802154_SECURITY_WRITER_ENABLED=1 -DNRF_802154_SWI_PRIORITY=1 -DNRF_802154_TX_STARTED_NOTIFY_ENABLED=1 -DNRF_802154_USE_RAW_API=1 -DNRF_SKIP_FICR_NS_COPY_TO_RAM -DOPENTHREAD_CONFIG_ASSERT_ENABLE=0 -DOPENTHREAD_CONFIG_BACKBONE_ROUTER_DUA_NDPROXYING_ENABLE=0 -DOPENTHREAD_CONFIG_BACKBONE_ROUTER_MULTICAST_ROUTING_ENABLE=0 -DOPENTHREAD_CONFIG_COMMISSIONER_ENABLE=1 -DOPENTHREAD_CONFIG_ENABLE_BUILTIN_MBEDTLS=0 -DOPENTHREAD_CONFIG_ENABLE_BUILTIN_MBEDTLS_MANAGEMENT=0 -DOPENTHREAD_CONFIG_LOG_LEVEL=2 -DOPENTHREAD_CONFIG_MAC_CSL_AUTO_SYNC_ENABLE=0 -DOPENTHREAD_CONFIG_NCP_HDLC_ENABLE=1 -DOPENTHREAD_CONFIG_PING_SENDER_ENABLE=1 -DOPENTHREAD_CONFIG_THREAD_VERSION=OT_THREAD_VERSION_1_2 -DOPENTHREAD_FTD=1 -DOPENTHREAD_PROJECT_CORE_CONFIG_FILE=\"openthread-core-zephyr-config.h\" -DOPENTHREAD_SPINEL_CONFIG_RCP_RESTORATION_MAX_COUNT=0 -DPACKAGE_NAME=\"OPENTHREAD\" -DUSE_PARTITION_MANAGER=1 -D_FORTIFY_SOURCE=2 -D__LINUX_ERRNO_EXTENSIONS__ -D__PROGRAM_START -D__ZEPHYR__=1 -DPACKAGE_VERSION=\"e2a765599\" -Imodules/openthread/build/etc/cmake -IC:/ncs/v2.0.0/modules/lib/openthread/etc/cmake -IC:/ncs/v2.0.0/modules/lib/openthread/src -IC:/ncs/v2.0.0/modules/lib/openthread/src/core -Imodules/nrfxlib/nrfxlib/nrf_security/src/include/generated -IC:/ncs/v2.0.0/nrfxlib/nrf_security/include -IC:/ncs/v2.0.0/nrfxlib/nrf_security/include/mbedtls -IC:/ncs/v2.0.0/nrfxlib/nrf_security/include/psa -IC:/ncs/v2.0.0/mbedtls/include -IC:/ncs/v2.0.0/mbedtls/include/mbedtls -IC:/ncs/v2.0.0/mbedtls/include/psa -IC:/ncs/v2.0.0/mbedtls/library -IC:/ncs/v2.0.0/nrfxlib/nrf_security/../crypto/nrf_oberon/include -IC:/ncs/v2.0.0/nrfxlib/nrf_security/../crypto/nrf_oberon/include/mbedtls -IC:/ncs/v2.0.0/nrfxlib/nrf_security/../crypto/nrf_oberon/include/psa -IC:/ncs/v2.0.0/nrfxlib/crypto/nrf_cc312_platform/include -IC:/ncs/v2.0.0/nrfxlib/crypto/nrf_oberon/include/mbedtls -IC:/ncs/v2.0.0/nrfxlib/crypto/nrf_oberon/include -IC:/ncs/v2.0.0/modules/lib/openthread/examples/platforms/zephyr -IC:/ncs/v2.0.0/zephyr/include/zephyr -IC:/ncs/v2.0.0/zephyr/include -Izephyr/include/generated -IC:/ncs/v2.0.0/zephyr/soc/arm/nordic_nrf/nrf53 -IC:/ncs/v2.0.0/zephyr/lib/libc/newlib/include -IC:/ncs/v2.0.0/zephyr/lib/util/fnmatch/. -IC:/ncs/v2.0.0/zephyr/soc/arm/nordic_nrf/common/. -IC:/ncs/v2.0.0/zephyr/subsys/net/lib/sockets/. -IC:/ncs/v2.0.0/zephyr/subsys/net/lib/openthread/platform/. -IC:/ncs/v2.0.0/zephyr/subsys/settings/include -IC:/ncs/v2.0.0/nrf/include -IC:/ncs/v2.0.0/modules/hal/cmsis/CMSIS/Core/Include -IC:/ncs/v2.0.0/modules/hal/nordic/nrfx -IC:/ncs/v2.0.0/modules/hal/nordic/nrfx/drivers/include -IC:/ncs/v2.0.0/modules/hal/nordic/nrfx/mdk -IC:/ncs/v2.0.0/zephyr/modules/hal_nordic/nrfx/. -Imodules/libmetal/libmetal/lib/include -IC:/ncs/v2.0.0/modules/lib/open-amp/open-amp/lib/include -IC:/ncs/v2.0.0/nrfxlib/nrf_802154/serialization/include -IC:/ncs/v2.0.0/nrfxlib/nrf_802154/serialization/include/platform -IC:/ncs/v2.0.0/nrfxlib/nrf_802154/serialization/include/serialization -IC:/ncs/v2.0.0/nrfxlib/nrf_802154/serialization/include/host -isystem C:/ncs/v2.0.0/modules/lib/openthread/include -isystem C:/ncs/v2.0.0/zephyr/subsys/cpp/include -isystem C:/ncs/v2.0.0/modules/lib/openthread/examples/platforms -Wall -Wextra -Wshadow -Wno-c++14-compat -fno-exceptions -Os -fcheck-new -std=c++11 -Wno-register -fno-rtti -imacros C:/Users/dev/Development/thread-dev/hub-thread-fw/build-nRF5340-DK/zephyr/include/generated/autoconf.h -ffreestanding -fno-common -g -gdwarf-4 -fdiagnostics-color=always -mcpu=cortex-m33 -mthumb -mabi=aapcs -mfpu=fpv5-sp-d16 -mfloat-abi=hard -mfp16-format=ieee -imacros C:/ncs/v2.0.0/zephyr/include/zephyr/toolchain/zephyr_stdint.h -Wformat -Wformat-security -Wno-format-zero-length -Wno-main -Wpointer-arith -Wexpansion-to-defined -Wno-unused-but-set-variable -fno-asynchronous-unwind-tables -fno-pie -fno-pic -fno-reorder-functions -fno-defer-pop -fmacro-prefix-map=C:/Users/dev/Development/thread-dev/hub-thread-fw=CMAKE_SOURCE_DIR -fmacro-prefix-map=C:/ncs/v2.0.0/zephyr=ZEPHYR_BASE -fmacro-prefix-map=C:/ncs/v2.0.0=WEST_TOPDIR -ffunction-sections -fdata-sections -specs=nano.specs -nostdinc++ -fno-builtin -imacros C:/Users/dev/Development/thread-dev/hub-thread-fw/build-nRF5340-DK/zephyr/include/generated/autoconf.h -std=c++11 -MD -MT modules/openthread/build/src/cli/CMakeFiles/openthread-cli-ftd.dir/cli_joiner.cpp.obj -MF modules\openthread\build\src\cli\CMakeFiles\openthread-cli-ftd.dir\cli_joiner.cpp.obj.d -o modules/openthread/build/src/cli/CMakeFiles/openthread-cli-ftd.dir/cli_joiner.cpp.obj -c C:/ncs/v2.0.0/modules/lib/openthread/src/cli/cli_joiner.cpp
In file included from C:\ncs\v2.0.0\modules\lib\openthread\src\core\coap\coap.hpp:36,
from C:\ncs\v2.0.0\modules\lib\openthread\src\core\backbone_router\bbr_leader.hpp:44,
from C:\ncs\v2.0.0\modules\lib\openthread\src\core\common\instance.hpp:65,
from C:\ncs\v2.0.0\modules\lib\openthread\src\cli\cli.hpp:78,
from C:\ncs\v2.0.0\modules\lib\openthread\src\cli\cli_joiner.cpp:38:
C:/ncs/v2.0.0/modules/lib/openthread/src/core/coap/coap_message.hpp: In member function 'const ot::Coap::Message::HelpData& ot::Coap::Message::GetHelpData() const':
C:\ncs\v2.0.0\modules\lib\openthread\src\core\coap\coap_message.hpp:953:61: error: static assertion failed: Insufficient buffer size for CoAP processing!
953 | static_assert(sizeof(HelpData) + kHelpDataAlignment <= kHeadBufferDataSize,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~Note that I was able to build the Thread CLI example, so this issue seems to be only with my application.
2500.thread.zip
4064.build_log.txt
