Guest: DragonFly dfbsd 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026 (baseline, stock INVARIANTS)
Fix:    DragonFly dfbsd 6.5-DEVELOPMENT #1: Sun Sep  6 07:33:35 UTC 2026 (fix.diff applied, nativekernel)
Root fs: vbd0s1d hammer2 (test fs is hammer1 via vn device + mount_hammer)
Compiler: cc (gcc80) 
Tools: /sbin/newfs_hammer /sbin/mount_hammer /sbin/hammer present in base