Native API Symbols That May Fail to Call Due to Permission Control

Before using the following interfaces, ensure that the application entity has the corresponding permission.

Symbol	Possible Cause
mlockall	usr namespace isolation or lack of CAP_IPC_LOCK privilege
swapon	usr namespace isolation
swapoff	usr namespace isolation
stime	usr namespace isolation or lack of CAP_SYS_TIME privilege
settimeofday	usr namespace isolation or lack of CAP_SYS_TIME privilege
adjtime	usr namespace isolation or lack of CAP_SYS_TIME privilege
clock_settime	usr namespace isolation or lack of CAP_SYS_TIME privilege
klogctl	usr namespace isolation or lack of CAP_SYS_ADMIN/CAP_SYSLOG privilege