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public text v1 · immutableroot@thecus:/tmp# strace 2>&1 ./test2 | grep getxattr
getxattr(".", "system.posix_acl_access", 0x0, 0) = 34420
root@thecus:/tmp# strace 2>&1 ./test | grep getxattr
getxattr(".", "system.posix_acl_access", 0x0, 0) = -1 EOPNOTSUPP (Operation not supported)