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release-notes.txt
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RIOT-2023.07 - Release Notes
============================
RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for a range of devices that are typically
found in the Internet of Things: 8-bit and 16-bit microcontrollers as well as
light-weight 32-bit processors.
RIOT is based on the following design principles: energy-efficiency, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with partial POSIX compliance).
RIOT is developed by an international open-source community which is
independent of specific vendors (e.g. similarly to the Linux community) and is
licensed with a non-viral copyleft license (LGPLv2.1), which allows indirect
business models around the free open-source software platform provided by RIOT.
About this release
==================
This release sees the addition of the openDSME IEEE 802.15.4 MAC.
So far it is limited to 2.4 GHz O-QPSK and drivers that have been converted
to the new sub-MAC architecture yet.
We also have two new supported MCUs: nRF53 and ATmega8. They share common
peripherals with their siblings, for nRF53 only the application core is
supported so far.
Finally, all tests live in subdirectories now, so the tests/ directory is much
more orderly.
288 pull requests, composed of 661 commits, have been merged since the
last release, and 35 issues have been solved. 26 people contributed with
code in 96 days. 6844 files have been touched with 251875 (+) insertions and
224148 deletions (-).
Notations used below
====================
+ means new feature/item
* means modified feature/item
- means removed feature/item
New features and changes
========================
Core
----
+ core/compiler_hints: add assume() hint (#19354)
+ core: add core_mutex_debug to aid debugging deadlocks (#18620)
* core/lib: make the use of DEBUG_BREAKPOINT on assert optional (#19766)
* gnrc/ipv6_auto_subnets: allow to configure minimal prefix length (#19656)
System Libraries
----------------
+ shell/cmds: add genfile command (#19401)
+ sys: add common imath module mv isin() form test/driver_dac_dds (#19378)
+ usbus: Add support for endpoint halt condition (#17090)
* buildsystem: Always expose CPU_RAM_BASE & SIZE flags (#19746)
* cpp11-compat: thread::sleep_for in microseconds (#19436)
* Rust: Update dependencies (#19495)
* SUIT: Prepared manifests (#19601)
* sys /cpp11-compat: remove pseudo anonymous namespaces (#19477)
* sys/isrpipe: Replace xtimer with ztimer_usec (#19645)
* sys/posix/sockets: fix code style & set sin6_scope_id in
_ep_to_sockaddr() (#19658)
* sys: partly refactor make dependency resolution (#19492)
* usbus: Implement USB_FEATURE_DEVICE_REMOTE_WAKEUP handling (#19800)
* ztimer/periodic: remove timer on init if already running (#19806)
Networking
----------
+ pkg/opendsme: add initial support for IEEE 802.15.4 DSME time-slotted
MAC (#18156)
+ sys/string_utils: add memchk() (#19686)
* drivers/sx127x: reduce use of floats (#19697)
* gnrc/gnrc_netif_hdr_print: printout timestamp if enabled (#19589)
* gnrc/ipv6/nib: fix 6Lo ND options on non 6Lo interface (#19604)
* gnrc/rpl: fix incorrect addition overflow check (#19739)
* gnrc_ipv6_nib: include RIO with all subnets in downstream RA (#19644)
* nanocoap: allow to define CoAP resources as XFA (#19296)
* nanocoap: clean up coap_iterate_option(), make it public (#19713)
* nanocoap: implement extended tokens (RFC 8974) (#19487)
* nanocoap_sock: defuse nanocoap_sock_get() API footgun (#19535)
* pkg/openthread: remove deprecated functions (#19685)
* semtech-loramac: extend list of supported radio with sx1261, sx1262
and sx1268 (#19525)
Packages
--------
* pkg/littlefs2: bump version to 2.7 (#19812)
* pkg/lvgl: bump to 8.3.7 (#19542)
* pkg/lvgl: Change all references of LittlevGL to LVGL (#18788)
* pkg/ndn-riot: drop unmaintained pkg (#19612)
* pkg/qcbor: bump to v1.2 (#19494)
Boards
------
+ board: add Adafruit Grand Central M4 Express support (#19580)
+ boards,sys/arduino: major clean up (#19759)
+ boards/b_u585i_ iot02a/periph usbdev (#19796)
+ boards/nucleo-l432k: provide three periph_timer instances (#19677)
+ boards/olimex-msp430-h2618: add new board (#19706)
+ boards: add ESP32-S3-Box support (#19811)
+ boards: add ESP32-S3-USB-OTG support (#19808)
+ boards: add stm32l496g-disco support (#19576)
+ boards: support for Olimex MSP430-H1611 board (#19558)
+ cpu/gd32v: add riotboot support (#19411)
+ cpu/native: add host fs access via VFS (#19315)
+ cpu/nrf53: add I2C and SPI support (#19798)
+ cpu/nrf53: add initial support with nRF5340DK-APP board (#19769)
+ cpu/nrf53: add usbdev support (#19809)
+ cpu/nrf{53,9160}: add periph_rtt support (#19804)
+ cpu/nrf{53,9160}: add pwm support (#19781)
+ cpu/rpx0xx: add initial ADC support (#19516)
+ drivers/usbdev_synopsys_dwc2: add GD32V support (#19389)
* boards/adafruit-clue: use shared usb_board_reset.mk for
flash/reset/term targets (#19616)
* boards/arduino-mkrwan1300: update board name to correct one (#19526)
* boards/atmega8: new board (#19754)
* boards/esp32: deduplication in common ESP32x board definitions (#19432)
* boards/frdm-k22f: fixes long lines in periph_conf.h (#19774)
* boards/nrf9160dk: use all available CC timer channels (#19771)
* boards/nucleo-f429zi: Provide 2nd timer (#19447)
* boards/rpi-pico: specify needed args when using jlink flasher (#19537)
* boards/rpi-pico: update openocd.cfg file (#19717)
* cpu/msp430: reorganize code (#19733)
* cpu/nrf5x/periph/wdt: enable support for nRF53/nRF9160 (#19789)
* cpu/nrf5x_common: rework LFCLK source selection (#19803)
* cpu/rpx0xx: implement periph_spi (#19440)
* cpu/rpx0xx: initial PIO support (#17425)
* makefiles/tools/jlink.inc.mk: use ELF file for flashing (#19541)
CPU
---
+ cpu/avr8 common: added avr4.ld script (#19751)
+ cpu/riscv: Add PMP driver (#19712)
+ cpu/stm32/periph_dac: small improvements (#19573)
+ cpu/stm32/periph_pwm: support of complementary timer outputs (#19572)
+ debug: add DEBUG_BREAKPOINT() macro, set breakpoint on failed
assertion (#19368)
* build-system: Allow out of tree BUILD_DIR (#19600)
* cpu/arm7: Fix undefined behavior based on invalid assembly (#19619)
* cpu/atmega8: new cpu (#19753)
* cpu/atmega_common: checking features instead of CPU models (#19752)
* cpu/avr8_common: Prepare for rework ISR (#19777)
* cpu/esp32: fix compilation issues with GCC 12.2 (#19450)
* cpu/esp32: fix remaining compilation errors for GCC 12.2 (#19577)
* cpu/nrf53: enable flashpage support (#19802)
* cpu/nrf5x_common: reset all available CC channels (#19770)
* cpu/nrf{52,9160}: remove duplicate sevonpend bit (#19773)
* cpu/sam0_eth: interrupt based link detection/auto-negotiation (#19703)
* cpu/samd5x: enable FDPLL1 at 200MHz (#19581)
* cpu/stm32/periph/adc: fix setting ADC clock (#19629)
* cpu/stm32/periph/dac: optimize setting DAC (#19529)
* cpu/stm32: stm32f4 BRR from BSRR (#19670)
* drivers/at86rf2xx: setting rx timestamp based on symbol counter for
ATmega*RFR2 (#19605)
* drivers/periph/rtc: improve doc on rtc_set_alarm (#19610)
* Fix periph clk (#19628)
* makefiles/arch/msp430.inc.mk: Fix compilation issues with GCC 12 (#19484)
* native/syscalls: rename real_clock_gettime to clock_gettime (#19476)
* pkg/cmsis: use unique package for CMSIS headers, DSP and NN modules (#18056)
* pkg/tinydtls: allow build for AVR (#19346)
Device Drivers
--------------
+ drivers/mtd: add support for MTDs emulated in RAM (#19443)
+ drivers/mtd_default: add external declarations for mtd* (#19538)
* driver/lc709203f: remove unnecessary use of float (#19662)
* drivers/lcd: code deduplication for st7735 and ili9341 (#19816)
* drivers/mpu9x50: clean up code (#19657)
* drivers/mrf24j40: cleanup function (#19635)
* drivers/pcf857x: allow to define PCF857x_BASE_ADDR at compile time (#19734)
* drivers/sdcard_spi: small cleanup (#19527)
Documentation
-------------
+ doc: add board selection guide (#19606)
+ SUBSYSTEMD.md: add @kaspar030 to core, Rust, build system, CI &
timers (#19727)
+ SUBSYSTEMS.md: add @maribu (#19732)
+ SUBSYSTEMS.md: add jia200x to subsystems (#19512)
* README.md: Remove HiL Badge (#19453)
* gnrc_sixlowpan_frag_sfr: mark as experimental + doc fixes (#19682)
Build System / Tooling
----------------------
+ buildsystem: add target debug-client (#19725)
+ dist/tools/openocd: add OPENOCD_SERVER_ADDRESS variable (#19724)
+ dist/tools/openocd: add RTT port variable (#19723)
+ tools/build_system_sanity_check: add check to verify test
applications are at the right place (#19673)
* dist/testbed-support: remove obsolete boards from iotlab archi (#19514)
* dist/tools/insufficient_memory: fix collection of app folders (#19598)
* dist/tools/openocd: fix parsing of flash bank base (#19620)
* dist/tools/openocd: start debug-server in background and wait (#19737)
* dist/tools/usb-serial: call ttys.py with its path [backport 2023.07] (#19831)
* dist/tools: Use `/usr/bin/env` to lookup Python. (#19448)
* make/usb_board_reset: define {preflash,term}-delay when necessary (#19617)
* Makefile.include: don't use target lstfile implicitly (#19797)
* Makefile.include: Generate lst file using objdump (#19745)
Kconfig
-------
+ pkg/libbase58: add kconfig support (#19623)
+ sys: add Kconfig support for clif (#19621)
+ sys: add some missing kconfig + adapt related tests when possible (#19622)
* boards/esp32s3-pros3: Fix stdio kconfig model (#19708)
* cpu/esp32: deduplication in Kconfig for ESP32x SoCs (#19433)
* cpu/rpx0xx: Fix kconfig model (#19660)
* drivers/nrf24l01p: model in kconfig (#19650)
* periph/timer: fix Kconfig menu title (#17830)
* pkg/micropython: model in Kconfig (#19672)
* pkg/openthread: Fix Kconfig and broken example (#19700)
* pkg/openthread: model in kconfig (#19671)
* Remodel the USB in Kconfig (#19086)
* sys/stdio_semihosting: model in Kconfig (#19651)
* sys/usb/Kconfig: Fix default PID (#19701)
* sys: model ecc, evtimer, pipe and shell_lock in kconfig (#19636)
Examples
--------
* examples/suit_update: some test fixes (#19643)
Testing
-------
+ tests/net/gnrc_mac_timeout: add automated test (#19639)
+ tests/README.md: Add directory overview (#19587)
* tests: move all periph applications to their own periphs/ folder (#19552)
* tests: move all pkg applications to their own pkgs/ folder (#19551)
* treewide: fix remaining broken paths to test applications (#19592)
* tests/drivers: move all driver tests into own folder (#19435)
* tests: move all bench applications to their own tests/bench/ folder (#19564)
* tests: move build system applications to tests/build_system (#19567)
* tests: move core related applications to their own tests/core/ folder (#19565)
* tests: move cpu related applications to tests/cpu (#19583)
* tests: move net related applications to test/net (#19586)
* tests: move nimble and lwip related to test applications to tests/pkg (#19582)
* tests: move sys related applications to their own tests/sys/ folder (#19566)
* treewide: replace occurrences of tests/driver_ with new path (#19555)
* tests/core: remove Makefile.sys_common copy past mistake (#19783)
* tests/drivers_at24cxxx: make it easier to select other EEPROMS (#19457)
* tests/lua_loader: move to tests/pkg/lua_loader (#19569)
* tests/periph_rtt: Fix for tick conversion test (#19522)
* tests/pkg/lvgl: avoid using floats (#19698)
* tests/unittests: remove old workaround for SAML1X and gcc9.X bug (#19687)
* tests: move leftover sys related tests to test/sys + move
tests/sys/candev to tests/drivers (#19585)
* tests: move remaining driver related applications to tests/drivers (#19568)
And 65 minor changes.
Removals (6)
------------
- makefiles/pseudomodules: remove deprecated event_thread_lowest module (#19627)
- nanocoap_sock: remove nanocoap_get() (#19553)
- pkg/tensorflow-lite: remove deprecated package (#19624)
- sys/gnrc_lorawan: remove deprecated tx port option (#19626)
- sys/hashes: remove deprecated aes cmac hashing (#19625)
- usbus: remove deprecated USBUS_HANDLER_FLAG_TR_FAIL flag (#19488)
Bug fixes (53)
==============
* cpu/stm32/periph_adc: fixes and improvements for L4 support (#19571)
* all/gnrc: fix null pointer dereference (#19756)
* boards/esp32: small documentation fixes (#19810)
* boards/esp32s2-lilygo-ttgo-t8: fix display configuration (#19807)
* boards/iotlab-m3: enable l3g4200d_ng (#19523)
* boards/qn9080dk: fix periph conflict (#19730)
* boards/sipeed-longan-nano: fix TFT display config and documentation (#19793)
* boards/sipeed-longan-nano: revert default to variant with TFT (#19814)
* boards/z1: fix broken clock configuration (#19705)
* boards: fix documentation for GD32V boards (#19790)
* buildsystem: fix kconfig mismatches (#19813)
* core/lib: drop read only XFA's `const volatile` modifiers (#19544)
* core: fix null pointer dereference (#19757)
* cpu/cc26x0_cc13x0: Drop feature cortexm_mpu (#19507)
* cpu/esp32: define RAM_START_ADDR and RAM_LEN (#19763)
* cpu/esp8266: fix region overflow with '*periph' directory in app path (#19785)
* cpu/msp430: fix for ti's msp430-gcc-opensource package ld version (#19782)
* cpu/qn908x/periph_i2c: allow internal pull-up on SCL (#19729)
* cpu/stm32/periph_gpio: reset PU/PD for ADC channels (#19574)
* cpu/stm32/usbdev_fs: fix ep registration and EP_REG assignments (#19460)
* cpu/stm32: Fix periph_gpio_ll_irq (#19446)
* cpu/stm32: fix riotboot settings for L4 and WB (#19618)
* drivers/at86rf2xx: fix default page being ignored (#19467)
* drivers/dht: busy wait reimplementation (#19718)
* drivers/enc28j60: fix ISR routine and bth (#19461)
* drivers/hih6130: avoid using floats (#19695)
* drivers/periph_usbdev: fix set device address (#19471)
* drivers/servo: Fix missing dep (#19515)
* drivers/slipdev: fix logic bug (#19633)
* drivers/usbus_synopsys_dwc2: fix interrupt handling in DMA mode (#19459)
* gnrc/ipv6/nib: reset rs_sent counter also for not-6LN interfaces (#19747)
* gnrc_sixlowpan_frag_rb: fix OOB write in _rbuf_add (#19680)
* gnrc_sixlowpan_frag_sfr: fix ARQ scheduler race-condition (#19679)
* gnrc_sixlowpan_iphc: fix NULL pointer dereference (#19678)
* gnrc_sixlowpan_iphc: prefix bits outside context must be zero (#19649)
* ipv6/nib: 6LBR should not send RS on their downstream interface (#19335)
* makefiles/arch/riscv.inc.mk: speed up toolchain detection (#19791)
* makefiles/tools/serial.inc.mk: Handle new miniterm versions (#19444)
* nrf5x_common: Clear I2C periph shorts (#19735)
* pkg/openthread: set event callback before netdev init (#19547)
* sys/color: extend unittest and fix module (#19693)
* sys/net/rpl: fix missing assignment operator (#19749)
* sys/net/rpl: fix possible NULL dereference (#19611)
* sys/shell: fix missing generic lora settings in ifconfig (#19466)
* sys/usb/usbus_msc: fix typo in C expression (#19637)
* sys/usbus/msc: fix EP sizes for USB HS and buffer alignment in DMA-
mode (#19458)
* sys/xtimer: improve documentation (#19681)
* tests/build_system/external_board_dirs: fix broken symlinks (#19584)
* tests/drivers/l3gxxxx: fix used sensor version for iotlab boards (#19550)
* tools/mspdebug: fix `make debug` and `make debugserver` (#19556)
* tools/openocd: Fix handling of OPENOCD_CMD_RESET_HALT (#19506)
* usbus/msc: fixes for synopsys dwc2 driver (#19455)
* usbus: don't trigger assertion in usbus_urb_submit() (#19664)
Known issues
============
Network related issues (51)
---------------------------
* 6lo: RIOT does not receive packets from Linux when short_addr is set (#11033)
* Address registration handling inappropriate (#15867)
* app/netdev: application stops working after receiving frames with
assertion or completely without error (#8271)
* at86rf2xx: Dead lock when sending while receiving (#8242)
* cpu/esp8266: Tracking open problems of esp_wifi netdev driver (#10861)
* dist/tools/sliptty/start_network.sh: IPv6 connectivity is broken on
PC (#14689)
* driver/mrf24j40: blocks shell input with auto_init_gnrc_netif (#12943)
* drivers/at86rf215: Incorrect channel number set for subGHz (#15906)
* DTLS examples cannot send message to localhost (#14315)
* Emcute cannot create a double-byte name (#12642)
* ethernet: Missing multicast addr assignment (#13493)
* ethos: fails to respond to first message. (#11988)
* ethos: Unable to handle fragmented IPv6 packets from Linux kernel (#12264)
* example/gnrc_border_router cannot answer after some time (#19578)
* examples/cord_ep: Dead lock when (re-)registering in callback
function (#12884)
* examples/gnrc_border_router: esp_wifi crashes on disconnect (#14679)
* Forwarding a packet back to its link layer source should not be
allowed (#5051)
* gcoap example request on tap I/F fails with NIB issue (#8199)
* gcoap: Suspected crosstalk between requests (possible NULL call) (#14390)
* Global IPv6 addresses remain deprecated after receiving RA (#19846)
* gnrc ipv6: multicast packets are not dispatched to the upper layers (#5230)
* gnrc_border_router stops routing after a while (#16398)
* gnrc_icmpv6_echo: flood-pinging another node leads to leaks in own
packet buffer (#12565)
* gnrc_ipv6: Multicast is not forwarded if routing node listens to the
address (#4527)
* gnrc_netif_pktq leaks memory (#17924)
* gnrc_rpl: missing bounds checks in _parse_options (#16085)
* gnrc_rpl: nib route not updated when topology / DODAG changes (#17327)
* gnrc_rpl: old routes are not deleted (#19423)
* gnrc_rpl: takes unusually long time to start routing packets (#19147)
* gnrc_sock_udp: Possible Race condition on copy in application buffer (#10389)
* gnrc_tcp: gnrc_tcp_recv() never generates -ECONNABORTED (#17896)
* gomach: Resetting netif with cli doesn't return (#10370)
* ieee802154_submac: IPv6 fragmentation broken (#16998)
* LoRaWan node ISR stack overflowed (#14962)
* LWIP TCP Communication Error (#19676)
* lwip_sock_tcp / sock_async: received events before calling
sock_accept() are lost due to race condition. (#16303)
* Missing drop implementations in netdev_driver_t::recv (#10410)
* Neighbor Discovery not working after router reboot when using SLAAC (#11038)
* netdev_ieee802154: Mismatch between radio ll address and in memory
address (#10380)
* nrf52: Not able to add global or ULA address to interface (#13280)
* nrfmin: communication not possible after multicast ping with no
interval (#11405)
* ping6 is failing when testing with cc2538dk (#13997)
* pkg/tinydtls: auxiliary data API does not work for async sockets (#16054)
* pkg/tinydtls: DTLS handshake does not work (#19595)
* samr30 xpro doesn't seem to use its radio ok (#12761)
* scan-build errors found during 2019.07 testing (#11852)
* stale border router does not get replaced (#12210)
* test/lwip: enabling both, IPv4 and IPv6, results in unexpected
behavior (#18097)
* tests/lwip: does not compile for IPv4 on 6LoWPAN-based boards. (#17162)
* two nodes livelock sending neighbor solicitations back and forth
between each other (#16670)
* xbee: setting PAN ID sometimes fails (#10338)
Timer related issues (7)
------------------------
* misc issues with tests/trickle (#9052)
* MSP430: periph_timer clock config wrong (#8251)
* periph/timer: `timer_set()` underflow safety check (tracking issue) (#13072)
* periph_timer: systematic proportional error in timer_set (#10545)
* saml21 system time vs rtc (#10523)
* stm32_common/periph/rtc: current implementation broken/poor accuracy (#8746)
* sys/newlib: gettimeofday() returns time since boot, not current wall
time. (#9187)
Drivers related issues (13)
---------------------------
* at86rf2xx: Simultaneous use of different transceiver types is not
supported (#4876)
* cpu/msp430: GPIO driver doesn't work properly (#9419)
* driver/hts221: Temperature and Humidity readings incorrect (#12445)
* drivers/st7735: faulty driver initialization (#19818)
* examples/dtls-wolfssl not working on pba-d-01-kw2x (#13527)
* fail to send data to can bus (#12371)
* mdt_erase success, but vfs_format resets board (esp32-heltec-
lora32-v2) (#14506)
* periph/spi: Switching between CPOL=0,1 problems on Kinetis with
software CS (#6567)
* periph: GPIO drivers are not thread safe (#4866)
* PWM: Single-phase initialization creates flicker (#15121)
* STM32: SPI clock not returning to idle state and generating
additional clock cycles (#11104)
* TCP client cannot send read only data (#16541)
* tests/periph_flashpage: unexpected behavior on nucleo-l4r5zi (#17599)
Native related issues (4)
-------------------------
* examples/micropython: floating point exception while testing on
native (#15870)
* native getchar is blocking RIOT (#16834)
* native not float safe (#495)
* native: tlsf: early malloc will lead to a crash (#5796)
Other platforms related issues (15)
-----------------------------------
* Failing tests on FE310 (Hifive1b) (#13086)
* [TRACKING] Fixes for automatic tests of ESP32 boards. (#12763)
* boards/hifive1: flashing issue (#13104)
* cpu/sam0: flashpage write / read cycle produces different results
depending on code layout in flash (#14929)
* cpu/stm32f1: CPU hangs after wake-up from STOP power mode (#13918)
* esp32-wroom-32: tests/netstats_l2 failing sometimes (#14237)
* examples/gnrc_border_router: esp_wifi_init failed with return value
257 on ESP32-C3 with nimble_rpble (#19319)
* gcoap/esp8266: Stack overflow with gcoap example (#13606)
* MPU doesn't work on cortex-m0+ (#14822)
* newlib-nano: Printf formatting does not work properly for some
numeric types (#1891)
* periph_timer: Test coverage & broken on STM32F767ZI (#15072)
* riscv: ISR stack is too small for ENABLE_DEBUG in core files (#16395)
* stm32152re: hardfault when DBGMCU_CR_DBG* bits are set and branch
after __WFI() (#14015)
* stm32f7: Large performance difference between stm32f746 and stm32f767 (#14728)
* sys/riotboot/flashwrite: unaligned write when skipping
`RIOTBOOT_MAGIC` on stm32wb (#15917)
Build system related issues (7)
-------------------------------
* `buildtest` uses wrong build directory (#9742)
* Build dependencies - processing order issues (#9913)
* dist/tools/cppcheck/cppchck.sh: errors when running with Cppcheck
1.89 (#12771)
* EXTERNAL_MODULE_DIRS silently ignores non-existent entries (#17696)
* make: ccache leads to differing binaries (#14264)
* make: use of immediate value of variables before they have their
final value (#8913)
* missing build dependencies in the rust build (#19714)
Other issues (64)
-----------------
* [TRACKING] sys/shell refactoring. (#12105)
* [tracking] unnecessary use of floating point arithmetic (#19614)
* _NVIC_SystemReset stuck in infinite loop when calling pm_reboot
through shell after flashing with J-Link (#13044)
* `make term` no longer works with JLinkExe v6.94 (#16022)
* at86rf215 stops receiving until sending a packet (#19653)
* b-l072z-lrwan1: tests/ztimer_overhead: test failure (#19224)
* backport_pr: Only works for when fork is in user (not in
organization) (#18486)
* benchmark_udp: hammering with low interval causes issues (#16808)
* boards/esp32-wroom-32: tests/mtd_raw flakey (#16130)
* Builds fail when different execstack options are around in objects (#18522)
* Can't build relic with benchmarks or tests (#12897)
* CC2538-CC2592EM has a very weak transmit power (#17543)
* CC2538DK board docs: broken links (#12889)
* cpp: Exception handling undefined (#17523)
* cpu/stm32: some tests are failing on CM33 (l5, u5) (#17439)
* doc/boards: information concerning access to RIOT shell (#17453)
* doc/LOSTANDFOUND: not rendered as expected (#17063)
* edbg: long lines flooded over serial become garbled (#14548)
* examples / tests: LoRa tests fail on platforms that don't support
LoRa (#14520)
* examples/gcoap: client broken (#19379)
* feather-m0: `make flash` reports "device unsupported" (#17722)
* flashing issue on frdm-k64f (#15903)
* frdm-k22f failing tests/periph_flashpage (#17057)
* frdm-k22f fails tests/periph_timer (#19543)
* Freeze into semtech_loramac_send call (pkg/semtech-loramac) (#18790)
* gcoap: gcoap_req_send and related should return negative for errors (#19393)
* gnrc_ipv6_nib: Neighbor Solicitation ping-pong (#18164)
* I2C not working under RIOT with U8G2 pkg (#16381)
* ieee802154_security: Nonce is reused after reboot (#16844)
* kconfiglib.py choice override of menuconfig bug (#19069)
* lwip: drivers/at86rf2xx/at86rf2xx_netdev.c invalid state during TCP
disconnect (#17209)
* lwip: invalid state transition on ieee802154_submac users (#17208)
* Making the newlib thread-safe (#4488)
* mcuboot: flashes but no output (#17524)
* MTD is confusing (#17663)
* nanocoap: incomplete response to /.well-known/core request (#10731)
* Order of auto_init functions (#13541)
* periph_rtt: rtt_set_alarm() blocks IRQ for 80 plus usec on STM32 (#19520)
* pkg/tinydtls: Multiple issues (#16108)
* Potential race condition in compile_and_test_for_board.py (#12621)
* RIOT is saw-toothing in energy consumption (even when idling) (#5009)
* riotboot/nrf52840dk: flashing slot1 with JLINK fails (#14576)
* riotboot: ECC faults (eg. in STM32L5 or STM32WB) not handled
gracefully (#17874)
* rust-gcoap example is incompatible with littlefs2 (#17817)
* samr34-xpro: some tests failing (#19223)
* sock_dtls: unable to send big messages (#17996)
* spurious IRQs in `periph_timer` (#18976)
* stdio_ethos: infinite shell loop (#17972)
* stdio_tinyusb_cdc_acm hangs with picolibc (#19277)
* STM32 Nucleo boards improperly clocked (#19778)
* sys/riotboot: documentation issues (#11243)
* tests/lwip target board for python test is hardcoded to native (#6533)
* tests/periph_flashpage: failing on stm32l475ve (#17280)
* tests/pkg_libhydrogen: test fails on master for the samr21-xpro with
LLVM (#15066)
* tests/pkg_libschc: Failing test_reassemble_success_ack_always (#19445)
* tests/test_tools: test fails while testing on samr21-xpro/iotlab-m3 (#15888)
* tests: broken with stdio_rtt if auto_init is disabled (#13120)
* tests: some tests don't work with `newlib` lock functions. (#12732)
* Types in `byteorder.h` need a cleanup (#14737)
* USB identifiers with funny characters create mojibake (#17776)
* usbus/msc: wrong error handling and behavior after usb reset (#19478)
* Use of multiple CAN bus on compatible boards (#14801)
* ztimer is incompatible with real-time requirements (#18883)
There are 161 known issues in this release
Fixed Issues since the last release (2023.04)
=============================================
- Not able to flash binary on samr21-xpro boards choosing serial number (#19805)
- STM32F4-discovery + mrf24j40 not working (#19711)
- Deprecated documentation? (#19667)
- usbus_cdc_ecm: failed assertion when host reboots (#19663)
- Bug: _ep_to_sockaddr() does not update in6_addr->sin6_scope_id (#19486)
- SPI access in LoRa-e5 and im880b? (#19025)
- qn9080 I2C driver spins in endless loop (#19021)
- pkg_libhydrogen tests fail / update libhydrogen (#18508)
- [gcoap-dtls] Posting a message yields a stack overflow on the
`samr21-xpro` with ECC (#18292)
- driver/sx126x:sx1268 spreading factor support LORA_SF5 (#17861)
- Bug: BUILD_IN_DOCKER=1 doesn't work when running make compile-
commands (#17507)
- newlib-nano: Printf formatting does not work properly with `"PRIu8"` (#17083)
- cpu/stm32/periph/rtc overflow error (#16574)
- `make -j flash` fails due to missing make dependencies or `make
flash-only` rebuilds the .elf (#16385)
- Basic test for periph/rtt introduced in #15431 is incorrect (#15940)
- Possible memory leak in RIOT/build/pkg/ndn-riot/app.c (#15638)
- build: info-build doesn't work with boards without port set (#15185)
- Two bugs may lead to NULL dereference. (#15006)
- tests/cpp11_*: failing on i-nucleo-lrwan1 (#14578)
- BUILD_IN_DOCKER ignores USEMODULE (#14504)
- adc is not a ADC-Driver but a analog pin abstraction (#14424)
- ethos: Unable to choose global source address. (#13745)
- Potential security and safety race conditions on attached devices (#13444)
- Cannot use LLVM with Cortex-M boards (#13390)
- Sleep mode for Arduino (#13321)
- Bug: openocd 0.10.0-6 Ubuntu dies while debugging with -rtos auto (#13285)
- Riot-os freezes with lwip + enc28j60 + stm32L4 (#13088)
- floats and doubles being used all over the place. (#12045)
- send data with UDP at 10HZ, the program die (#11860)
- Tracking: remove harmful use of `export` in make and immediate
evaluation (#10850)
- sys/stdio_uart: dropped data when received at once (#10639)
- CC2538 RF overlapping PIN usage (#8779)
- doxygen: riot.css modified by 'make doc' (#8122)
- cpu/native: timer interrupt issue (#6442)
- macros: RIOT_FILE_RELATIVE printing wrong file name for headers (#4053)
35 fixed issues since last release (2023.04)
Acknowledgements
================
We would like to thank all companies that provided us with hardware for porting
and testing RIOT-OS. Further thanks go to companies and institutions that
directly sponsored development time. And finally, big thanks to all of you
contributing in so many different ways to make RIOT worthwhile!
More information
================
http://www.riot-os.org
Matrix and Forum
================
* Join the RIOT Matrix room at: #riot-os:matrix.org
* Join the RIOT Forum at: forum.riot-os.org
License
=======
* The code developed by the RIOT community is licensed under the GNU Lesser
General Public License (LGPL) version 2.1 as published by the Free Software
Foundation.
* Some external sources and packages are published under a separate license.
All code files contain licensing information.
RIOT-2023.04 - Release Notes
============================
RIOT is a multi-threading operating system which enables soft real-time
capabilities and comes with support for a range of devices that are typically
found in the Internet of Things: 8-bit and 16-bit microcontrollers as well as
light-weight 32-bit processors.
RIOT is based on the following design principles: energy-efficiency, soft
real-time capabilities, small memory footprint, modularity, and uniform API
access, independent of the underlying hardware (with partial POSIX compliance).
RIOT is developed by an international open-source community which is
independent of specific vendors (e.g. similarly to the Linux community) and is
licensed with a non-viral copyleft license (LGPLv2.1), which allows indirect
business models around the free open-source software platform provided by RIOT.
About this release
==================
The 2023.04 release includes:
- Mass Storage Class Support in USBUS
- Initial support for libSCHC
- FlashDB support
- BLE downlink in GNRC Border Router
- DTLS support for nanoCoAP in client mode
- Congestion control for 6LoWPAN Selective Fragment Recovery
- avr/flash_utils: strings (and other const data) no longer needs to be copied
to RAM
- New boards:
- esp32c3-wemos-mini
- esp32s2-lilygo-ttgo-t8
- esp32s2-wemos-mini
- esp32s3-pros3
- rpi-pico-w
- sipeed-longan-nano
- New device drivers:
- Black/white e-Paper/e-Ink display
- RFID reader (MFRC522)
- ST VL53L1X Time-of-Flight sensor
280 pull requests, composed of 595 commits, have been merged since the
last release, and 3 issues have been solved. 27 people contributed with
code in 83 days. 1246 files have been touched with 177090 (+) insertions and
36429 deletions (-).
Notations used below
====================
+ means new feature/item
* means modified feature/item
- means removed feature/item
New features and changes
========================
Core
----
+ core/compiler_hints: add likely() / unlikely() hints (#19156)
* core/xfa: disable asan on llvm (#19271)
* pkg/libfixmath: bump version (#19182)
System Libraries
----------------
+ drivers/wdt: add periph_wdt_auto_start for early watchdog (#18257)
+ fuzzing: Add uri_parser setup (#19057)
+ Revert "sys/pm_layered: pm_(un)block add attribute optimize(3)" (#19155)
+ sys/coding: add XOR based coding module (#17045)
+ sys/event: add event sources (#18758)
+ sys/irq: Add C++ wrapper using RAII (#17066)
+ sys/phydat: add functions for Unix time conversion to phydat (#19080)
+ sys/trickle: cleanup deps (#19404)
+ sys/vfs: add force option to vfs_umount() (#19320)
+ usbus/msc: add CONFIG_USBUS_MSC_AUTO_MTD option to create LUNs on
init (#19356)
+ usbus/msc: add initial Mass Storage Class support (#19242)
+ USBUS: Add URB support (#17091)
+ ztimer: add ztimer_stopwatch convenience functions (#19343)
* bootloaders: fix bootloader button logic (#19365)
* makefiles/suit: make it possible to accept multiple SUIT keys (#18459)
* sys/bitfield: don't touch unrelated bits in bf_{set, clear}_all() (#19400)
* sys/cpp11-compat: Remove xtimer deps (#19369)
* sys/fmt: optimize scn_u32_dec scn_u32_hex (#19027)
* sys/fmt: use `fflush(); stdio_write()` instead of `fwrite()` (#19250)
* sys/shell_lock: do not call strlen, less jumpy (#19157)
* sys/tiny_strerror: make use of flash_utils.h (#19332)
* test_utils/print_stack_usage: use thread.h API (#19226)
* usbus/dfu: do not create alt interface if NUM_SLOTS=1 (#19386)
Networking
----------
+ gcoap/fileserver: add event callbacks (#18414)
+ gnrc_sixlowpan_frag_sfr_congure: optional congestion control support
(#16171, #16159, #16170, #16158)
+ gnrc_static: add static network configuration (#18477)
+ nanocoap_link_format: add helper function to parse Link Format (#18134)
+ pkg/tinyusb: add tinyUSB netdev driver (#18903)
* cord: bump reference from draft to rfc (#19367)
* cord: convert to ztimer (#19391)
* gnrc_ipv6_nib: clean up _resolve_addr() (#18939)
* nanocoap_sock: ensure response address is the same as request address (#19361)
* nanocoap_sock: implement DTLS socket (#18724)
* nanocoap_sock: implement nanocoap_sock_delete() (#18738)
* nanocoap_sock: store message ID in nanocoap_sock_t (#19178)
* pkg/tinydtls: Reduce default verbosity, increase default sizes when CoAP is
used (#19331)
* shell/cmds: GNRC: replace puts() with printf() (#19327)
* shell/gnrc_icmpv6_echo: separate ICMPv6 echo sending / parsing from
shell command (#18934)
* sock_dtls: move common code into sock_dtls_establish_session() (#19142)
* sys/net/gnrc/netif: fixing no global address wait (#19402)
* sys/net/grnc/netreg: avoid creating an infinite loop (#19238)
Packages
--------
+ libschc: initial import as package (#18515)
+ pkg/arduino_adafruit_sensor: add Adafruit Unified Sensor Driver as
package (#17460)
+ pkg/wolfssl: Update wolfSSL to 5.5.4 and add DTLS 1.3 support (#19302)
+ pkg: add FlashDB (#17612)
* pkg/fatfs: bump to r0.15 (#19347)
* pkg/lz4: bump version to 1.9.4 (#19180)
* pkg/minmea: bump version (#19183)
* pkg/nanopb: bump version to 0.4.7 (#19179)
* pkg/tinydtls: bump version (#19184)
* pkg/tinydtls: drop libc_gettimeofday dependency (#19247)
* pkg/tinyusb: bump to 0.15 (#19276)
* pkg/u8g2: bump version (#19285)
* pkg/wolfssl: Fix memory leaks in wolfSSL sock_tls (#19190)
* tests/pkg_nanors: use static allocation (#19382)
+ pkg/tinyusb: add GD32VF103 support (#19256)
+ pkg/lwext4: add lightweight implementation of the ext2/3/4 filesystem (#18682)
Boards
------
+ boards/esp32c3-wemos-mini: add support for Wemos ESP32-C3 mini (#19417)
+ boards/esp32s2-mini: add definition for ESP32 S2 Mini (#18863)
+ boards/nucleo64: Add pinout diagrams from UM1724 (#19406)
+ boards/seeedstudio-gd32: add mtd_sdcard_default (#19293)
+ boards/seeedstudio-gd32: complete and improve board definition (#19166)
+ boards/sipeed-longan-nano: add BOOT as user button (#19419)
+ boards/sipeed-longan-nano: add definition for the Sipeed Longan Nano
GD32VF103 board (#19170)
+ boards: add esp32s3-pros3 support (#19088)
+ boards: support for the LILYGO TTGO T8 ESP32-S2 board (#19284)
+ cpu/native: implement periph_rtc_ms (#19340)
+ drivers/mrf24j40: add support for IEEE 802.15.4 Radio HAL (#18472)
+ drivers/mtd_sdcard: add mtd_sdcard_default module (#19216)
+ makefiles/tools/serial.inc.mk: Allow detection of debug adapter (#19119)
* boards/adafruit-itsybitsy-m4: turn off APA102 LED on startup (#19357)
* boards/esp*: complete SD Card MTD config (#19255)
* boards/esp32: enable RGB LED support (#19408)
* boards/gd32v: improve board definitions (#19249)
* boards/rpi-pico-w: fix too large board image (#19159)
* boards/rpi-pico-w: initial support for rpi pico W board (#19071)
* boards/sipeed-longan-nano: default to flashing via DFU (#19204)
* boards/stm32f4discovery: default to stdio via CDC ACM (#19259)
* boards: common: stdio_cdc_acm: let tests wait a bit for serial port (#19128)
* cpu/rpx0xx/cmsis: Update vendor header files (#19416)
CPU
---
+ bootloaders/riotboot: add tinyUSB DFU support (#19010)
+ core/init: add early_init() (#19082)
+ cpu/esp32: add periph_flashpage support (#19079)
+ cpu/gd32v: add periph_adc support (#19188)
+ cpu/gd32v: add periph_dac support (#19248)
+ cpu/gd32v: add periph_gpio_irq support (#19185)
+ cpu/gd32v: add periph_gpio_ll and periph_gpio_ll_irq support (#19243)
+ cpu/gd32v: add periph_i2c support (#19201)
+ cpu/gd32v: add periph_pwm support (#19209)
+ cpu/gd32v: add periph_rtc support (#19186)
+ cpu/gd32v: add periph_rtc_mem support (#19254)
+ cpu/gd32v: add periph_rtt support (#19202)
+ cpu/gd32v: add periph_spi support (#19214)
+ cpu/gd32v: add pm_layered support in periph_pm (#19187)
+ cpu/stm32/periph: Add GPIO LL IRQ support for STM32F1 (#19412)
+ cpu/stm32/periph: Implement GPIO LL for STM32F1 without IRQ support
(yet) (#19407)
+ picolibc: add support for picolibc >= 1.8 (#19341)
+ sys/stdio_udp: add stdio over UDP (#19081)
* cpu/esp32: cleanup of ESP-IDF interface API (module `esp_idf_api`) (#19426)
* cpu/esp_common: use generic WIFI_SSID/WIFI_PASS defines (#19286)
* cpu/gd32v/periph_i2c: interrupt based driver (#19269)
* cpu/native: Switch to ztimer for gettimeofday (#19349)
* cpu/riscv_common: convert to uword_t usage (#19345)
* cpu/sam0_common: adc: implement 16 bit mode by oversampling (#19165)
* cpu/stm32/periph/i2c: export PERIPH_I2C_MAX_BYTES_PER_FRAME (#19279)
* cpu/stm32/periph/timer: don't stop counter (#19263)
* cpu/stm32/periph/timer: fix clobered IRQ flag (#19385)
* cpu/stm32/usbdev_fs: fix ep registration and EP_REG assignments
[backport 2023.04] (#19462)
* drivers/at24cxxx: implement _mtd_at24cxxx_read_page (#19270)
* Fix stm32 timer periodic (#19363)
* sam0/usbdev: partial revert of #17086 (#19384)
* sys/usbus: check for the number of required and provided EPs in
static configurations (#19371)
Device Drivers
--------------
+ black/white e-Paper/e-Ink display driver (#12509)
+ drivers/mfrc522: add new driver (#16782)
+ drivers/servo: reimplement with high level interface (#18392)
+ drivers/usbdev_synopsys_dwc2: add ESP32x power management (#19399)
+ drivers: add driver for ST VL6180X ranging and ambient light sensor (#10462)
* drivers/at24cxxx: merge mtd driver with at24cxxx.c (#19281)
* drivers/periph_common/flashpage: fix silent error (#19175)
* drivers/slipdev: implement sleep states (#17810)
* drivers/ws281x: improve timing for ESP32x (#19422)
+ drivers/ws281x: add RMT hardware support for ESP32x SoCs (#19424)
Documentation
-------------
+ doc: Add out of tree RIOT app documentation (#19324)
* blobs: include documentation in doxygen (#19200)
* doc/porting-boards.md: fix code snippets in md view (#19206)
* Doc: document generate-makefile.ci (#19239)
* doccheck: avoid generating dot or html (#19228)
Build System / Tooling
----------------------
+ tools/compile_like_murdock: Add features (#19351)
+ tools/doccheck: add simple exclude to doccheck (#19240)
+ tools/renode: add support for target reset (#19375)
* build system: Fix linker feature test with newlib 4.3.0 (#19232)
* ci/print_versions: print all ESP32 toolchains (#19309)
* dist/tools/doccheck: Fix grep warning (#19220)
* dist/tools/insufficient_memory: Improve and clean up script (#19291)
* esptools/install.sh: Fix shellcheck issues (#19325)
* Fix `compile_like_murdock.py` when board is empty (#19370)
* make: pass make jobserver to cargo (#19203)
* Makefile.dep: pull in FEATURES_REQUIRED for periph (#19234)
* toolchain/gnu.inc.mk: don't check version if CC is not installed (#19137)
Kconfig
-------
* drivers/sx126x: make MODULE_SX126X_RF_SWITCH hidden in kconfig (#19194)
* Fix SX126X-STM32WL module in Kconfig (#19191)
Examples
--------
+ examples/gnrc_border_router: add BLE as downlink option (#19321)
Testing
-------
+ bors.yaml: re-activate labels check + add block_labels (#19161)
+ CI: re-add "synchronize" event to check-labels (#19136)
+ gh-actions: report release-tests result to Matrix (#19102)
* CI: .murdock: fix bors fast build (#19241)
* CI: .murdock: use build checkout for ccache tmp (#19274)
* CI: separate check-labels and check-commits workflows (#19120)
* CI: update check-labels-action (#19101)
* test/periph_rtc: reset struct tm time between tests (#19344)
* tests/gnrc_rpl: Disable CI test for native (#19171)
* tests/periph_flashpage_unittest: enable periph_flashpage (#19215)
API Changes
-----------
+ usbdev: Add dedicated stall functions (#17086)
* drivers/mtd_flashpage: implement pagewise API, don't use raw
addresses (#19258)
* gcoap: Finish the gcoap_get_resource_list_tl ->
gcoap_get_resource_list renaming (#19295)
+ drivers/servo: reimplement with high level interface (#18392)
* cpu/esp_common: use generic WIFI_SSID/WIFI_PASS defines (#19286)
+ sys/vfs: add force option to vfs_umount() (#19320)
Uncategorized
-------------
+ MAINTAINING.md: add some notes on Bors (#19329)
+ RDM: The 802.15.4 Radio HAL (#13943)
* SECURITY: Describe that declassification is an option (#19149)
* SUBSYSTEMS.md: migrate subsystem list from wiki (#19060)
And 57 minor changes.
Bug fixes (53)
==============
* boards/common: add common timer config for GD32VF103 boards (#19205)
* cpu/esp_common: Add missing disconnect reasons (#19381)
* Make: Add generate-Makefile.ci (#19244)
* usbus: Add support for full speed with high speed phy (#19438)
* boards/common/cc26xx cc13xx: clean up and fix flash configs (#19050)
* boards/esp32s2-lilygo-ttgo-t8: fix STDIO selection in Kconfig (#19287)
* boards/remote-*: drop custom led_init() (#19348)
* boards/seeedstudio-gd32: fix HXTAL clock in Kconfig (#19129)
* boards/stm32f4discovery: use default port to access stdio via cdc acm (#19376)
* boards: fix USB configuration for stm32f429i-disco (#19437)
* cord: include gcoap_req_send returning 0 in error (#19383)
* cpu/esp32: fix and improve UART initialization (#19146)
* cpu/esp32: fix stdio_usb_serial_jtag for ESP32-C3 (#19415)
* cpu/esp32: fixes for boot issues and crashes on ESP32 (#19192)
* cpu/esp32: use ets_printf instead of puts in startup (#19420)
* cpu/gd32v: fix gpio_read in periph_gpio (#19418)
* cpu/gd32v: move board dependent RTT configs to board config (#19211)
* cpu/stm32: Fix periph_spi operation in non-DMA mode (#19431)
* dist/tools/esptools/export.sh: fixes IDF_TOOLS_PATH default setting (#19125)
* dist/tools/openocd: fix problems with riotboot caused by _flash_addr
function for OpenOCD v0.12 (#19409)
* driver/usbdev_synopsys_dwc2: use correct number of EPs (#19380)
* drivers/at86rf2xx: fix default page being ignored [backport 2023.04] (#19473)
* drivers/usbdev_synopsys_dwc2: disable DMA mode (#19388)
* drivers/usbdev_synopsys_dwc2: fix and re-enable DMA mode (#19397)
* drivers/usbus_synopsys_dwc2: fix interrupt handling in DMA mode
[backport 2023.04] (#19472)
* efm32/dac: Shift instead of masking (#19318)
* gcoap: Do not send responses from multicast addresses (#19272)
* gh-actions: check-labels: move to upstream fix (#19160)
* gnrc_netif: set lower bound for IEEE802154_STACKSIZE_DEFAULT (#19339)
* gnrc_static: don't parse address as prefix (#19313)
* makefiles/boards/stm32: fix DFU_USB_ID handling (#19374)
* makefiles/tools/serial.inc.mk: Handle new miniterm versions [backport
2023.04] (#19489)
* matrix keypad: Fix memcpy bug in initialization (#19162)
* nanocoap_sock: don't include token in empty ACK response (#19366)
* native/stdio: Explicitly provide getchar (#19330)
* pkg/esp8266_sdk: fix version string generation (#19123)
* pkg/nimble/autoadv: fix flag comparisons (#19235)
* pkg/tinyusb: fix default VID/PID configuration (#19377)
* release-tests: fix PASSED chat message (#19145)
* security fixes [backport 2023.04] (#19497)
* shell/gnrc_icmpv6_echo: acquire ZTIMER_USEC clock for time
measurement (#19055)
* socket_zep: only report size of single datagram (#19121)
* sys/clif: Fixing out of bounds read under certain conditions (#18746)
* sys/net/dhcpv6: include IA Prefix Option in SOLICIT (#19225)
* sys/phydat: Fix unit confusion (#19292)
* sys/shell: don't include suit command by default (#19294)
* sys/suit: Ensure previous thread is stopped before reusing its stack (#19199)
* sys/usbus/cdc/ecm: fix High-Speed mode (#19358)
* sys/usbus: handle exceeding number of endpoints (#19362)
* sys/ztimer: ztimer_mock: guard ztimer_ondemand static functions (#19118)
* tests/driver_dac_dds: fix output of sine and saw functions (#19251)
* tests/{sys_fido2_ctap/usbus_board_reset}: fix stdio_usb_serial_jtag
dependency (#19261)
* usbus/msc: fixes for synopsys dwc2 [backport 2023.04] (#19456)
Known issues
============
Network related issues (52)
---------------------------
* 6lo: RIOT does not receive packets from Linux when short_addr is set (#11033)
* [gcoap-dtls] Posting a message yields a stack overflow on the
`samr21-xpro` with ECC (#18292)
* Address registration handling inappropriate (#15867)