panic: vclean: deadlock
Starting stack trace...
panic(ffffffff830dea7c) at panic+0x1d0 sys/kern/subr_prf.c:229
vclean(fffffd806a3488a0,8,ffff8000ffff0540) at vclean+0x482 sys/kern/vfs_subr.c:1065
vgonel(fffffd806a3488a0,ffff8000ffff0540) at vgonel+0xec sys/kern/vfs_subr.c:1197
vcount(fffffd8078193370) at vcount+0x179 sys/kern/vfs_subr.c:1298
spec_close(ffff8000371c4310) at spec_close+0xb8 sys/kern/spec_vnops.c:480
VOP_CLOSE(fffffd8078193370,3,fffffd807f7d3478,ffff8000ffff0540) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156
vn_closefile(fffffd806bf0a8f8,ffff8000ffff0540) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline]
vn_closefile(fffffd806bf0a8f8,ffff8000ffff0540) at vn_closefile+0x12b sys/kern/vfs_vnops.c:609
fdrop(fffffd806bf0a8f8,ffff8000ffff0540) at fdrop+0x126 sys/kern/kern_descrip.c:1274
closef(fffffd806bf0a8f8,ffff8000ffff0540) at closef+0x192 sys/kern/kern_descrip.c:1258
fdfree(ffff8000ffff0540) at fdfree+0x116 sys/kern/kern_descrip.c:1190
exit1(ffff8000ffff0540,0,0,1) at exit1+0x71b sys/kern/kern_exit.c:221
sys_exit(ffff8000ffff0540,ffff8000371c4690,ffff8000371c45e0) at sys_exit+0x1a
syscall(ffff8000371c4690) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff8000371c4690) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b6769bc2490, count: 243
End of stack trace.