Ville Juven

CONFIG_BUILD_KERNEL: Allocating user stack fails if the initial heap size is too small

4

This happens with CONFIG_BUILD_KERNEL=y if the initial heap size is not large enough to hold the initial stack. The issue is with the tcb/group initialization order when loading a task...

nuttx/atomic: Don't call enter-/exit_critical_section() from user code

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Only use enter-/exit_critical_section() from kernel modules ## Describe problem solved by this pull request Fixes a system crash for RISC-V when user code tries to execute global interrupt disable/enable ##...

User high resolution timer fix

3

## Describe problem solved by this pull request This fixes two crashes when using user hrt: 1. Stack underflow, which occurs randomly due to exception stack overflow 2. Crash due...

nuttx/tasks.cpp: Remove direct dependency to kernel private procedures / structures

3

## Describe problem solved by this pull request Use libc procedures to exit, kill and ask for process name, instead of fiddling around with the tcb directly. The old solution...

Problem with SMP and mm_delaylist

2

In SMP mode there is a mm_delaylist for each CPU. When calling mm_free() the memory is put into the delaylist if the mm_lock cannot be acquired, while the delaylist elements...

ostest: Add initial support for CONFIG_BUILD_KERNEL

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## Summary Implement task_create and task_delete for use with ostest. The functions are unavailable in kernel build mode but overload them here and create a pthread worker instead. Some tests...

syscall: syscall_wraps apply to kernel side symbols as well

3

System call wraps are used to support system call instrumentation (sched note). This feature is done by the linker, using the --wrap option for each symbol respectively, after the nuttx...

arm64/SMP: Fix FPU and exception handling for ARM64

1

## Summary Fix FPU and exception handling for ARM64 by: - Saving and restoring FPU state on every exception / interrupt - Switching to the interrupt stack, when executing the...

sched/task_exit.c: Refresh current CPU instead of relying on stale value

1

## Summary The comment about the CPU index remaining stable is incorrect. There is no guarantee the task does not yield during the exit process, meaning the CPU can most...

syslog: Don't allow blocking when in signal handler

1

## Summary Blocking while running a signal handler is not advisable, instead write the log string character by character. There is also a potential for a deadlock, as discussed in...