该问题是怎么引起的？

rmdir、rename，chdir，mkdir失败导致

重现步骤

执行测试套
/test/xts/acts/security_lite/permission_posix/dac/src/ActsSystemDevDacTest.cpp

报错信息

./../../test/xts/acts/security_lite/permission_posix/dac/src/ActsSystemDevDacTest.cpp:246:
ErrInfo: VFS error with DAC or Capability
../../../test/xts/acts/security_lite/permission_posix/dac/src/ActsSystemDevDacTest.cpp:256: Failure
Expected equality of these values:
(((status) & 0xff00) >> 8)
Which is: 1
0
ErrInfo: The exitCode is wrong, please query logs, child_pid = 29
[ FAILED ] DacTestSuite.DACTest0330 (112 ms)

mreq_err_check:124: cmd->error = -84,data->error = 0
../../../test/xts/acts/security_lite/permission_posix/dac/src/ActsSystemDevDacTest.cpp:497:
ErrInfo: VFS error with DAC or Capability
../../../test/xts/acts/security_lite/permission_posix/dac/src/ActsSystemDevDacTest.cpp:507: Failure
Expected equality of these values:
(((status) & 0xff00) >> 8)
Which is: 1
0
ErrInfo: The exitCode is wrong, please query logs, child_pid = 35
[ FAILED ] DacTestSuite.DACTest0390 (119 ms)

../../../test/xts/acts/security_lite/permission_posix/dac/src/ActsSystemDevDacTest.cpp:620:
ErrInfo: VFS error with DAC or Capability
mreq_err_check:124: ../../../test/xts/acts/security_lite/permission_posix/dac/src/ActsSystemDevDacTest.cpp:630: Failure
Expected equality of these values:
(((status) & 0xff00) >> 8)
Which is: 1
0
ErrInfo: The exitCode is wrong, please query logs, child_pid = 38
cmd->error = -84,data->error = 0
[ FAILED ] DacTestSuite.DACTest0420 (145 ms)

mreq_err_check:124: cmd->error = -84,data->error = 0
../../../test/xts/acts/security_lite/permission_posix/dac/src/ActsSystemDevDacTest.cpp:1385:
ErrInfo: VFS error with DAC or Capability
../../../test/xts/acts/security_lite/permission_posix/dac/src/ActsSystemDevDacTest.cpp:1395: Failure
Expected equality of these values:
(((status) & 0xff00) >> 8)
Which is: 1
0
ErrInfo: The exitCode is wrong, please query logs, child_pid = 56
[ FAILED ] DacTestSuite.DACTest0600 (126 ms)