Organic reproduction #1 (writer loop, 4096-entry arrays, ~30 s of unprivileged
vquotactl traffic before the box dropped): see panic.1.txt
Organic reproduction #2 (writer loop, 128-entry arrays, <60 s): see panic.2.txt
Both on DragonFly 6.5-DEVELOPMENT #0 stock INVARIANTS kernel, vfs.quota_enabled=1,
triggered by uid 1001 (maxx).