panic: ffs2_balloc: unwind failed
Starting stack trace...
panic(ffffffff832dd33e) at panic+0x1ba sys/kern/subr_prf.c:229
ffs2_balloc(fffffd806aa36d00,6001000003,1,fffffd8007bfb7b8,1,ffff80003a92f5c0) at ffs2_balloc+0x1965
ffs_truncate(fffffd806aa36d00,6001000004,0,fffffd8007bfb7b8) at ffs_truncate+0x4f8 sys/ufs/ffs/ffs_inode.c:217
ufs_setattr(ffff80003a92f6e0) at ufs_setattr+0x8e0 sys/ufs/ufs/ufs_vnops.c:403
VOP_SETATTR(fffffd8068a36c00,ffff80003a92f768,fffffd8007bfb7b8,ffff80003a936558) at VOP_SETATTR+0x112 sys/kern/vfs_vops.c:210
dotruncate(ffff80003a936558,fffffd8068a36c00,6001000004) at dotruncate+0x1da sys/kern/vfs_syscalls.c:2865
sys_truncate(ffff80003a936558,ffff80003a92fa30,ffff80003a92f980) at sys_truncate+0x13e sys/kern/vfs_syscalls.c:2889
syscall(ffff80003a92fa30) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003a92fa30) at syscall+0x962 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x345da019890, count: 248
End of stack trace.