panic: ffs_blkfree: bad size
Starting stack trace...
panic(ffffffff83315b91) at panic+0x1ba sys/kern/subr_prf.c:229
ffs_blkfree(fffffd806e4398c0,2b32ea4b,4000) at ffs_blkfree+0xd33 sys/ufs/ffs/ffs_alloc.c:1285
ffs_truncate(fffffd806e4398c0,0,4,fffffd807f7d7410) at ffs_truncate+0x116b sys/ufs/ffs/ffs_inode.c:304
ufs_rmdir(ffff80002edefbf8) at ufs_rmdir+0x374 sys/ufs/ufs/ufs_vnops.c:1265
VOP_RMDIR(fffffd8064367010,fffffd8064367cb8,ffff80002edefcd8) at VOP_RMDIR+0x19a sys/kern/vfs_vops.c:413
dounlinkat(ffff80002a7cdc48,ffffff9c,76bfee1e3860,8) at dounlinkat+0x2e0 sys/kern/vfs_syscalls.c:1899
syscall(ffff80002edefe50) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x76bfee1e3850, count: 249
End of stack trace.