DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026
       root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC x86_64 (stock INVARIANTS kernel)
QEMU/KVM: -smp 6 -m 4096, virtio-blk root, virtio-net (user-mode)
Baseline kernel #0 throughout (no patched kernel booted; guest reset with-src at end).
Mount: vnconfig -c /dev/vn0 /root/df3208.iso (NO -S: -S 2048 means 2048 MB device
       size and GROWS the backing file sparse; device here = file size = 80 KB);
       mount_cd9660 /dev/vn0 /mnt/df3208 (RRIP autodetected: "cd9660: RockRidge
       Extension"; PVD volume_space_size deliberately 0x200000)
Trigger uid: nobody (65534) via su -m nobody
vfs.usermount: 0 (mounts performed by root as setup; the trigger is unprivileged)
Extra configs attempted: kern.nbuf=1024 and 256 via /boot/loader.conf.local
       (reverted; guest reset to clean-source snapshot afterwards)
vfs.nbuf default 12634; vfs.bufspace ~72MB