RUN 1 (v1, 300s): DF-2751: uid=1001 racing funsetown() KKASSERT stale-load for 300s...
survived: victim=210478933 killer=212374878 spray=247448440 (no panic in 300s)
EXIT=2
RUN 2 (v2, 300s): DF-2751v2: uid=1001 funsetown KKASSERT race, 300s...
survived: victim=226081023 killer=108711537 spray=215214652 writes=247848267 (no panic in 300s)
EXIT=124 (timeout wrapper)
RUN 3 (v3, 240s target): DF-2751v3: uid=1001 funsetown KKASSERT stale-load race, 240s...
[ssh session hung; guest unresponsive; vm.sh status -> down]
Kernel panic on serial console (see panic.txt):
  panic: assertion "sigiop == sigio->sio_myref" failed in funsetown at /usr/src/sys/kern/kern_descrip.c:1247
  cpuid = 5
  funsetown() at funsetown+0x159
  funsetown() at funsetown+0x159
  fsetown() at fsetown+0xdb
  pipe_ioctl() at pipe_ioctl+0x11f
  kern_fcntl() at kern_fcntl+0x301
  sys_fcntl() at sys_fcntl+0x6a
  Debugger("panic") ... db>
Panic occurred within <= ~4 minutes of the v3 run starting.