GUIDINGLI opened a new pull request, #14116:
URL: https://github.com/apache/nuttx/pull/14116
## Summary
task: fix cu assert when use ctrl + c
Backtrace:
backtrace_unwind+0x1da/0x1dc
sched_backtrace+0x1c/0x30
sched_dumpstack+0x20/0x68
_assert+0x1dc/0x45c
__assert+0x8/0x10
nxsem_recover+0x46/0x50
nxtask_recover+0x14/0x20
nxtask_exithook+0x14/0x8c
nxtask_terminate+0x2c/0x50
pthread_cancel+0x44/0x74
cu_main+0x26a/0x400
nxtask_startup+0x14/0x28
nxtask_start+0x4a/0x64
cu have two threads: cu & listener
```
cu thread
receive ctrl+c
pthread_cancel()
nxtask_terminate()
enter_critical_section()
nxsched_remove_readytorun(listener)
keep task state to WAIT
leave_critical_section()
UART RX IRQ happens
sem_post(listener)
remove the sem waitlist failed
but semcount++
nxtask_recover(listener)
nxsem_recover(listener)
semcount < 0 assert failed
```
Resolve:
Swap the nxtask_recover() & nxsched_remove_readytorun()
## Impact
nxtask_terminate
## Testing
vela boards & sim
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
