I have a FreeBSD 8.1 jailed host that uses the ZFS filesystem. All tests for perl (I've tried both blead and 5.12.2) pass apart from ext/POSIX/t/sysconf.t. Only one test fails: ok 25 - calling pathconf("/tmp", _PC_NO_TRUNC) not ok 26 - checking that the returned value is defined (it isn't) or that errno is clear (it isn't, it's Invalid argument) # Failed test ' checking that the returned value is defined # (it isn't) or that errno is clear (it isn't, it's Invalid argument)' # at t/sysconf.t line 63. I'm not filing this as a bug report yet because I don't know if I see this failure because of a failure in the assumptions perl's test suite makes or a quirk of the jailed host. I thought I should mention this here in case anyone else has seen something similar. I have built various versions of perl on standard FreeBSD 8.1 installations without incident. However, I note that the jailed host runs using one filesystem on / as ZFS whereas I usually use UFS2. I wonder if using /tmp under ZFS causes this test failure. I also wonder if anyone can suggest anything I should try to investigate this problem further, possibly leading to a bug report. Thanks, TomThread Next