anchao commented on PR #10681:
URL: https://github.com/apache/nuttx/pull/10681#issuecomment-1729278459
For programs with the dependencies logic in pthread_once callback , using
global locks may cause deadlock:
```
task A
pthread_once()
|
|-> nxrmutex_lock(&g_lock);
-> init_routine(); // callback to wait task B
task B
pthread_once()
|
->nxrmutex_lock(&g_lock);
// Deadlock
->init_routine(); // hold
resource to wake up task A
```
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