DF-2717 storm: 90s, 3 readers, mode=0xf (1=fchdir-swap 2=relchdir 4=dance 8=readers), A=/tmp/df2717/a B=/home/maxx/df2717/b
RUN_RC=124   (ssh session died: guest panicked mid-run)
guest status after: down

Serial console (see panic-2-console.txt, identical to panic #1 and smoke run):
  Fatal user address access from kernel mode from df2717_storm at ffffffff806ef3ac
  Fatal trap 12: page fault while in kernel mode
  fault virtual address  = 0x84
  instruction pointer    = 0x8:0xffffffff806ef3ac   == nlookup+0x66c == vfs_nlookup.c:767
  panic: page fault
  Trace:
    nlookup() at nlookup+0x66c
    kern_chdir() at kern_chdir+0x39
  Uptime: 8m40s  (panic ~10s into the storm window)

3/3 full-mix runs panicked with the identical signature
(smoke 20s run, S3 150s run, S3 90s run).