DF-3009 fix-validation run (patched kernel #0 Sat Sep 5 05:04:56 UTC 2026,
fix.diff applied to /usr/src, make nativekernel + make installkernel) —
full output of the identical PoC sequence:

    MOUNT_OK

`timeout 40 stat /mnt` then blocked in the hard-mount retry loop (the
malicious server still never answers a single valid RPC): that is the
pre-existing designed behavior of a hard mount against a dead server, NOT a
crash. `vm.sh status` stayed **up** throughout; the ssh wrapper hit its own
120s ceiling while unmount cleanup was pending.

Serial console during the run (see fixed.console.txt for the tallies):

    kernel: impossible packet length (0) from nfs server 127.0.0.1:/P
    kernel: receive error 27 from nfs server 127.0.0.1:/P
    (30x each, zero Fatal traps, zero panics)

=> baseline panic is GONE on the patched kernel with the exact same PoC.