Andrew Boie f5a7e1a108 kernel: handle thread self-aborts on idle thread ...

Fixes races where threads on another CPU are joining the
exiting thread, since it could still be running when
the joiners wake up on a different CPU.

Fixes problems where the thread object is still being
used by the kernel when the fn_abort() function is called,
preventing the thread object from being recycled or
freed back to a slab pool.

Fixes a race where a thread is aborted from one CPU while
it self-aborts on another CPU, that was currently worked
around with a busy-wait.

Precedent for doing this comes from FreeRTOS, which also
performs final thread cleanup in the idle thread.

Some logic in z_thread_single_abort() rearranged such that
when we release sched_spinlock, the thread object pointer
is never dereferenced by the kernel again; join waiters
or fn_abort() logic may free it immediately.

An assertion added to z_thread_single_abort() to ensure
it never gets called with thread == _current outside of an ISR.

Some logic has been added to ensure z_thread_single_abort()
tasks don't run more than once.

Fixes: #26486
Related to: #23063 #23062

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>

2020-09-30 14:11:59 -04:00

..

include

kernel: handle thread self-aborts on idle thread

2020-09-30 14:11:59 -04:00

atomic_c.c

kernel: Add k_heap synchronized memory allocator

2020-04-14 10:05:55 -07:00

cache_handlers.c

syscalls: Add system call for cache flush & invalidate

2020-08-04 17:26:45 -04:00

CMakeLists.txt

kernel: Deprecate CONFIG_MULTITHREADING

2020-09-23 15:50:32 -05:00

compiler_stack_protect.c

kernel: Fix gcc-9.2 warning with _StackCheckHandler

2019-10-04 05:22:30 -07:00

device.c

kernel: device: invert sense of ready bit

2020-09-15 18:22:38 +02:00

errno.c

headers: Refactor kernel and arch headers.

2019-11-06 16:07:32 -08:00

fatal.c

debug/coredump: add a primitive coredump mechanism

2020-08-24 20:28:24 -04:00

futex.c

kernel/timeout: Make timeout arguments an opaque type

2020-03-31 19:40:47 -04:00

idle.c

kernel: handle thread self-aborts on idle thread

2020-09-30 14:11:59 -04:00

init.c

kernel: handle thread self-aborts on idle thread

2020-09-30 14:11:59 -04:00

Kconfig

kernel: handle thread self-aborts on idle thread

2020-09-30 14:11:59 -04:00

kheap.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

mailbox.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

mem_domain.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

mem_slab.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

mempool_sys.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

mempool.c

kernel: Refactor k_mem_pool APIs into a base and derived level

2020-04-14 10:05:55 -07:00

mmu.c

kernel: demote k_mem_map to z_mem_map

2020-09-03 14:24:38 -04:00

msg_q.c

doc: Clarify semantics of k_msgq_put

2020-09-23 13:21:07 -05:00

mutex.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

pipes.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

poll.c

kernel: cleanup header inclusion

2020-06-25 16:12:36 -05:00

queue.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

sched.c

kernel: handle thread self-aborts on idle thread

2020-09-30 14:11:59 -04:00

sem.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

smp.c

kernel: smp: avoid identifier collisions

2020-07-25 21:26:15 -04:00

stack.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

system_work_q.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

thread_abort.c

kernel: handle thread self-aborts on idle thread

2020-09-30 14:11:59 -04:00

thread.c

kernel: Apply IRQ offload API change

2020-09-02 13:48:13 +02:00

timeout.c

kernel: avoid implementation-defined behavior in timeout calculation

2020-09-17 22:19:35 -04:00

timer.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

userspace_handler.c

userspace: update k_object API to support immutable objects

2020-09-02 13:48:13 +02:00

userspace.c

device: Const-ify all device driver instance pointers

2020-09-02 13:48:13 +02:00

version.c

zephyr: replace zephyr integer types with C99 types

2020-06-08 08:23:57 -05:00

work_q.c

kernel: Add k_delayed_work_pending to check if work has been submitted

2020-08-04 17:32:56 +02:00