On Wed, Feb 25, 2026 at 03:58:52PM +0100, Thomas Klausner wrote: > Hi! > > When using ruby 4.0.1 on NetBSD 11.99.5, I sometimes see > segfaults. The next try building the same program usually works. Can you look at the core, maybe with symbols from the affected libs? Works at next try often is ASLR and good/bad luck. Martin