Guest: DragonFly dfbsd 6.5-DEVELOPMENT x86_64 (QEMU/KVM, 6 vCPU, 4GB)
Kernels used:
  baseline (uninstrumented): #0 Jul  2 06:02:54 UTC 2026 (clean-source snapshot)
  rig    (#1): 16:36:57 UTC = instrumentation only (poison + panic checks)
  fix-v1 (#2): 16:54:59 UTC = instrumentation + token-based fix  (WEDGED twice under stress - rejected)
  ctl    (#3): 17:27:28 UTC = instrumentation only (rebuild; control for wedge comparison)
  fix-v2 (#4): 17:44:54 UTC = instrumentation + final fix.diff   (clean under stress)
Compiler: gcc 8.3 [DragonFly]
sysctl vfs.usermount=1 for all runs
Source: guest /usr/src verified md5-identical to repo sys/ before patching