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1# Native API Symbols That May Fail to Call Due to Permission Control
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3Before using the following interfaces, ensure that the application entity has the corresponding permission.
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5| Symbol| Possible Cause|
6| --- | --- |
7| mlockall | usr namespace isolation or lack of CAP_IPC_LOCK privilege |
8| swapon | usr namespace isolation |
9| swapoff | usr namespace isolation |
10| stime | usr namespace isolation or lack of CAP_SYS_TIME privilege |
11| settimeofday | usr namespace isolation or lack of CAP_SYS_TIME privilege |
12| adjtime | usr namespace isolation or lack of CAP_SYS_TIME privilege |
13| clock_settime | usr namespace isolation or lack of CAP_SYS_TIME privilege |
14| klogctl | usr namespace isolation or lack of CAP_SYS_ADMIN/CAP_SYSLOG privilege |
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