Guest (real):   DragonFly dfbsd 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026 root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC x86_64 (QEMU/KVM, 6 vCPUs)
VKERNEL target: DragonFly 6.5-DEVELOPMENT #0: Wed Oct  7 04:14:43 UTC 2026 root@dfbsd:/usr/obj/usr/src/sys/VKERNEL64 (same-tree VKERNEL64 build)
vkernel args:   kernel.debug -m 512m -r /vkroot.img -n 2 -e init_path=/bin/vkinit  (console = pty slave ctty)
sysctl:         vm.vkernel_enable=1
Driver:         vkwinch_drv (pty master; TIOCSWINSZ rows 100<->101 storm ~29k/s)
Racer:          vkwinch (static, in-image /root/vkwinch; uid 9; TIOCSPGRP churn ~12-16k/s)
Compiler:       cc (DragonFly base gcc)
d2f7f9fc045e3ce3d5f69a205652162e25764a508ddcddfd44552fab4e9bbe28  vkwinch_race.c
bce5adab5d83ddf79f4e14e250410e85c35c504a0574371404e77ef3f9cd7d6c  vkwinch_drv.c
52e3ae3d7b821191fba688346f83f98cf69bb36b79f2b67e6e7680e05421350d  fix.diff