masayuki2009 commented on pull request #5896:
URL: https://github.com/apache/incubator-nuttx/pull/5896#issuecomment-1081285656
@anchao
Did you test this PR with your Cortex-A7 SMP board?
I noticed that a deadlock happens with the NXP sabre-6quad board (quad
Cortex-A9).
```
NuttShell (NSH) NuttX-3.6.1
nsh> uname -a
NuttX 3.6.1 e5122937af Mar 29 2022 09:35:19 arm sabre-6quad
nsh> ps
PID GROUP CPU PRI POLICY TYPE NPX STATE EVENT SIGMASK STACK
USED FILLED COMMAND
0 0 0 0 FIFO Kthread N-- Assigned 00000000 001000
000440 44.0% CPU0 IDLE
1 1 1 0 FIFO Kthread N-- Running 00000000 001000
000664 66.4% CPU1 IDLE
2 2 2 0 FIFO Kthread N-- Running 00000000 001000
000664 66.4% CPU2 IDLE
3 3 3 0 FIFO Kthread N-- Running 00000000 001000
000664 66.4% CPU3 IDLE
4 4 --- 192 RR Kthread --- Waiting Semaphore 00000000 002016
000396 19.6% hpwork 0x1082155c
5 5 0 100 RR Task --- Running 00000000 002024
001188 58.6% nsh_main
nsh> smp
Main[0]: Running on CPU0
Main[0]: Initializing barrier
Thread[1]: Started
Main[0]: Thread 1 created
Thread[1]: Running on CPU0
Main[0]: Now running on CPU1
Thread[2]: Started
Main[0]: Thread 2 created
Thread[2]: Running on CPU1
Main[0]: Now running on CPU2
Thread[3]: Started
Main[0]: Thread 3 created
Thread[3]: Running on CPU2
Thread[4]: Started
Main[0]: Thread 4 created
Thread[4]: Running on CPU3
Main[0]: Now running on CPU3
Thread[5]: Started
Thread[5]: Running on CPU0
Thread[1]: Now running on CPU2
Main[0]: Thread 5 created
Thread[3]: Now running on CPU3
Thread[4]: Now running on CPU1
Thread[6]: Started
Thread[6]: Running on CPU0
Thread[2]: Now running on CPU2
Thread[5]: Now running on CPU3
Main[0]: Thread 6 created
Main[0]: Now running on CPU1
Thread[1]: Now running on CPU1
Thread[3]: Now running on CPU0
Thread[4]: Now running on CPU2
Thread[7]: Started
Thread[7]: Running on CPU3
Thread[6]: Now running on CPU1
Thread[2]: Now running on CPU0
Thread[5]: Now running on CPU2
Main[0]: Thread 7 created
```
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