panic: ffs_blkfree: bad size
Starting stack trace...
panic(ffffffff83004a50) at panic+0x1d0 sys/kern/subr_prf.c:229
ffs_blkfree(fffffd80745d5dd0,2,4000) at ffs_blkfree+0xd33 sys/ufs/ffs/ffs_alloc.c:1285
ffs_indirtrunc(fffffd80745d5dd0,fffffffffffffff4,1d6dc0,ffffffffffffffff,0,ffff8000373fb090) at ffs_indirtrunc+0x7b3
ffs_truncate(fffffd80745d5dd0,0,0,ffffffffffffffff) at ffs_truncate+0x1063 sys/ufs/ffs/ffs_inode.c:297
ufs_inactive(ffff8000373fb1e8) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd80763c11c8,ffff8000303a8048) at VOP_INACTIVE+0x107 sys/kern/vfs_vops.c:495
vrele(fffffd80763c11c8) at vrele+0x129 sys/kern/vfs_subr.c:827
ktrsettrace(ffff8000ffffa890,80000310,fffffd8073479988,fffffd807f7d3618) at ktrsettrace+0xe7 sys/kern/kern_ktrace.c:122
ktrops(ffff8000303a8048,ffff8000ffffa890,0,80000310,fffffd8073479988,fffffd807f7d3618) at ktrops+0x271 sys/kern/kern_ktrace.c:564
doktrace(fffffd8073479988,4,310,0,ffff8000303a8048) at doktrace+0x6dd ktrsetchildren sys/kern/kern_ktrace.c:586 [inline]
doktrace(fffffd8073479988,4,310,0,ffff8000303a8048) at doktrace+0x6dd sys/kern/kern_ktrace.c:508
sys_ktrace(ffff8000303a8048,ffff8000373fb650,ffff8000373fb5a0) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:549
syscall(ffff8000373fb650) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000373fb650) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x494ada60560, count: 244
End of stack trace.