Oddly enough the aforementioned port's makefile doesn't have USE_WXNEEDED = yes . After enabling this, and trying to build, configure fails with a ./conftest triggering WX. mount -uo wxallowed /usr/obj allows it to build. However, in accord with the bug #40 for valgrind-openbsd at the maintainers bitbucket [1] , ktrace shows MMAP failing an allocation with errno 12. However, some discussing for Linux on the valgrind bugzilla shows that this failure could be attributable to an rlimit policy that not strictly necessary. [2] Commenting out the offending line of code, as suggested by [2], causes valgrind to appear to run normally. This line of code is still present today in valgrinds truck, so perhaps this fix is a workaround. Attached please find the patch.
[1] - https://bitbucket.org/uebayasi/valgrind-openbsd/issues/40/mmap-failure-cannot-allocate-memory-on [2] - https://bugs.kde.org/show_bug.cgi?id=357833
patch-coregrind_m_main_c
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