# race4 telemetry (8 writers/side "one"+"many0", 6 closer-sprayers,
# same-thread 0x42 slab re-spray of the freed priv (zone 4096) and hooks
# (zone 64), plus ping -f interrupt pressure).
# Final counters after ~13 minutes:
w_ok=6488793 enotconn=9513213 ehostunreach=0 eother=55449 | mk_ok=140448 mk_err=84086(17) cn_ok=134164 cn_err=6284(2) sh_err=58824(2)
# 6.49M packets entered ng_one2many_rcvdata, 58824 NGM_SHUTDOWNs executed
# kfree(priv) racing them, 140448 graph rebuilds.  Guest never panicked;
# ssh stayed alive throughout; no console splats (see session transcript).