apache/nuttx

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Apache NuttX is a mature, real-time embedded operating system (RTOS)

Stars: 4k
Forks: 1.7k
Open beginner issues: 0
Indexed issues: 622
Avg merge: 1d 17h
Merged PRs (30d): 237

Dominant language: C
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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619 open issues indexed

regarding folder common/espressif Open

apache/nuttx#14550 · 8 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE] Unified the argv parameters of pthread_create and kthread_create Open

Type: Enhancement

apache/nuttx#14564 · 2 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] the semantics of enter_critical_section is unclear Open

Arch: all Area: Api Area: Kernel OS: Mac Type: Bug

apache/nuttx#14593 · 9 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] double unlock in esp32_serial.c Open

Arch: xtensa Area: Drivers OS: Mac Type: Bug

apache/nuttx#14594 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] low level console i/o (up_putc) can interfere interrupt-based uart i/o Open

Arch: all Area: Drivers OS: Mac Type: Bug

apache/nuttx#14662 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] Network Timeout in CI Docker Workflows Open

Arch: all Area: Build system OS: Linux Type: Bug

apache/nuttx#14682 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] lib_outstream_s putc and puts are redundant Open

Arch: all Area: Api OS: Mac Type: Bug

apache/nuttx#14738 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] ostest fails without returning the expected exit code Open

Arch: xtensa Area: Applications OS: Linux Type: Bug

apache/nuttx#14749 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] SMP signal dispatch seems racy Open

Arch: all Area: Kernel OS: Mac Type: Bug

apache/nuttx#14807 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] tools/esp32/backtrace.gdbscript needs an update Open

Arch: xtensa OS: Mac Type: Bug

apache/nuttx#14888 · 5 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] cmake-based build should not modify CMAKE_CURRENT_SOURCE_DIR Open

Arch: all Area: Build system OS: Mac Type: Bug

apache/nuttx#14952 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] <title>quot and rem in lldiv_t are of the wrong type Open

Arch: arm Arch: mips Area: Posix OS: Other Type: Bug

apache/nuttx#14998 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] RTCB can't be null since g_readytorun is in bss section Open

Arch: arm Area: OS Components OS: Linux Type: Bug

apache/nuttx#15020 · 5 comments · 0 reactions · 2 assignees · Indexed Sep 14, 2026
[BUG] Recent modification broke raspberry pi pico nsh Open

Arch: arm Area: Board support OS: BSD OS: Linux OS: Mac OS: Other OS: Windows Type: Bug

apache/nuttx#15162 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Bug Report: RISC-V Load Access Fault Exception in NuttX Kernel Open

Arch: risc-v Area: Kernel OS: Linux Type: Bug

apache/nuttx#15177 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Load Access Fault in nxsem_trywait Due to Invalid Semaphore Pointer on RISC-V NuttX Open

Arch: risc-v Area: Kernel Area: Security OS: Linux Type: Bug

apache/nuttx#15178 · 6 comments · 1 reaction · 1 assignee · Indexed Sep 14, 2026
[BUG] libuv makes sim/macOS crash Open

Arch: simulator OS: Mac Type: Bug

apache/nuttx#15228 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[HELP] dafault math.h Open

Community: Question

apache/nuttx#15292 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] Crash in setenv with Invalid Pointer Open

Arch: risc-v Area: Kernel OS: Linux Type: Bug

apache/nuttx#15401 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE] mechanism to ensure the consistent locking order Open

Type: Enhancement

apache/nuttx#15446 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] many of _POSIX_xxx constants seem inappropriate Open

Arch: all Area: Api OS: Mac Type: Bug

apache/nuttx#15464 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[HELP] STM32H7 timer driver usage Open

Community: Question

apache/nuttx#15502 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE] The refresh.sh takes too long to refresh all/boards/arch, should it fork child process and run simultaneously? Open

Type: Enhancement

apache/nuttx#15543 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[BUG] w5500-evb-pico is not reachable over usbnsh Open

Arch: arm Area: Board support OS: Linux Type: Bug

apache/nuttx#15549 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE] CAN and CAN FD bittiming/bitrate calculation consolidation and CAN drivers updates goals Open

Type: Enhancement

apache/nuttx#15567 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] msg_iovlen == 1 assumptions in sendmsg/recvmsg Open

Arch: all Area: Networking OS: Mac Type: Bug

apache/nuttx#15571 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] better to ban variable length arrays Open

Arch: all OS: Mac Type: Bug

apache/nuttx#15572 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
[BUG] adb is not working on STM32F4Discovery board Open

Arch: arm Area: Applications OS: Linux Type: Bug

apache/nuttx#15595 · 11 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] RP23XX compile error due to undeclared GPIO_FUNC_NULL Open

apache/nuttx#15664 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[BUG] RP23XX "Return board unique ID" feature is broken Open

Arch: arm Area: Board support OS: Linux Type: Bug

apache/nuttx#15666 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] Cannot enable separate IRAM heap and SMP at the same time Open

Arch: xtensa Area: Kernel OS: Linux Type: Bug

apache/nuttx#15692 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[NXDART] NuttX Distributed Automation for Build and Runtime Testing. Open

Area: Testing Type: Enhancement

apache/nuttx#15730 · 45 comments · 2 reactions · 2 assignees · Indexed Sep 14, 2026
[NXDART] Dashboard Open

Area: Testing Type: Enhancement

apache/nuttx#15731 · 7 comments · 1 reaction · 2 assignees · Indexed Sep 14, 2026
[NXDART] QEMU runtime tests. Open

Area: Testing Type: Enhancement

apache/nuttx#15733 · 1 comment · 1 reaction · 2 assignees · Indexed Sep 14, 2026
[NXDART] GitHub Pull Request integration. Open

Area: Testing Type: Enhancement

apache/nuttx#15734 · 0 comments · 1 reaction · 2 assignees · Indexed Sep 14, 2026
[NXDART] Test framework architecture and bootstrap. Open

Area: Testing Type: Enhancement

apache/nuttx#15735 · 0 comments · 0 reactions · 4 assignees · Indexed Sep 14, 2026
[RELEASE] 13.0.0 (gathering ideas). Open

apache/nuttx#15737 · 13 comments · 1 reaction · 1 assignee · Indexed Sep 14, 2026
[SECURITY] NuttX RTOS Security Open

Area: Security

apache/nuttx#15738 · 0 comments · 0 reactions · 2 assignees · Indexed Sep 14, 2026
[NXDART] Hardware Database Open

Area: Testing

apache/nuttx#15746 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] h_errno and EAI_xxx are wrongly mixed Open

Arch: all Area: Networking Area: Posix OS: Mac Type: Bug

apache/nuttx#15752 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] RP2040 SMP configurations broken Open

Arch: arm Area: Kernel OS: Linux Type: Bug

apache/nuttx#15760 · 11 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[NXDART] Test Scenarios. Open

Area: Testing

apache/nuttx#15773 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] macOS: sim/note and sim/nsh fail to build Open

Arch: simulator Area: Build system OS: Mac Type: Bug

apache/nuttx#15776 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[CI] Add nuttx and nuttx-apps versions compatibility cross-checks. Open

Area: CI Area: Testing Type: Enhancement

apache/nuttx#15791 · 0 comments · 1 reaction · 1 assignee · Indexed Sep 14, 2026
[CI] Improvements. Open

Area: CI Area: Testing Type: Enhancement

apache/nuttx#15792 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[BUG] <Configuring for Raspberry Pi Pico W failing due to missing 'olddefconfig'> Open

Arch: arm Area: Build system OS: Linux Type: Bug

apache/nuttx#15807 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE] CMake build for ESP32 xtensa and risc-v architectures Open

Type: Enhancement

apache/nuttx#15839 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[FEATURE] Add support to TIOCGICOUNT ioctl for STM32 families Open

Type: Enhancement

apache/nuttx#15844 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
[HELP] Minimum configuration for CDC ECM to work? Open

Community: Question

apache/nuttx#15880 · 19 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[HELP] Serial disable tx-interrupt behaviour (esp32-c3) Open

Community: Question

apache/nuttx#15888 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/nuttx

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