https://issues.dlang.org/show_bug.cgi?id=14476
Issue ID: 14476 Summary: core.thread unit tests failing on FreeBSD 9+ Product: D Version: unspecified Hardware: All OS: FreeBSD Status: NEW Severity: major Priority: P1 Component: druntime Assignee: nob...@puremagic.com Reporter: issues.dl...@jmdavisprog.com I am consistently seeing this when I try and run druntime's unit tests on FreeBSD for either 2.067 or master (2.068 alpha): 0.000s PASS release64 object 0.000s PASS release64 core.atomic 0.008s PASS release64 core.bitop 0.000s PASS release64 core.checkedint 0.000s PASS release64 core.demangle 0.000s PASS release64 core.exception 0.000s PASS release64 core.math 0.000s PASS release64 core.memory posix.mak:230: recipe for target 'obj/64/core/thread' failed gmake: *** [obj/64/core/thread] Illegal instruction gmake: *** Deleting file 'obj/64/core/thread' The druntime unit tests for 2.066 run just fine, so whatever the problem is was either introduced in 2.067, or a new test that triggers it was introduced. I'm running the latest PC-BSD on x86_64 (so FreeBSD 10.1), and someone else in the newsgroup sees the same thing on their 9.1 i386 machine: http://forum.dlang.org/post/koxlbjptuyccdygvk...@forum.dlang.org The autotester is not hitting this problem, so clearly, it doesn't exist on all FreeBSD systems However, apparently, the autotester is currently running FreeBSD 8.4, so that would imply that the problem only exists in FreeBSD 9+. I narrowed it down to the last test in core.thread: unittest { auto thr = new Thread(function{}, 10).start(); thr.join(); } And if I remove the ", 10" from the constructor call, then it works - but then the druntime unit test build fails later: Testing link Testing load Testing linkD Testing linkDR Testing loadDR Testing host Testing finalize Testing link_linkdep Makefile:28: recipe for target 'obj/freebsd/64/link_linkdep.done' failed gmake[1]: *** [obj/freebsd/64/link_linkdep.done] Segmentation fault gmake[1]: Leaving directory '/usr/home/jmdavis/Programming/github/druntime/test/shared' posix.mak:242: recipe for target 'test/shared/.run' failed gmake: *** [test/shared/.run] Error 2 I have no idea if it's a related problem or not, but if it isn't, then another problem was introduced in 2.067 which only exists on FreeBSD 9+. But regardless, something about setting the stack size for threads isn't working properly on FreeBSD 9+. --