#21 0xc063096f in kdb_enter (msg=0x0) at cpufunc.h:56
#22 0xc0617d7b in panic (fmt=0xc084f65d "vm_page_free: freeing wired page")
    at /usr/src/sys/kern/kern_shutdown.c:538
#23 0xc0780e8b in vm_page_free_toq (m=0xc1261f90) at /usr/src/sys/vm/vm_page.c:1039
#24 0xc078040d in vm_page_free (m=0xc1261f90) at /usr/src/sys/vm/vm_page.c:398
#25 0xc0785fb4 in vnode_pager_generic_getpages (vp=0xc172f450, m=0xce435a6c, bytecount=24576,
    reqpage=0) at /usr/src/sys/vm/vnode_pager.c:851
#26 0xc0761a60 in ffs_getpages (ap=0xce435a28) at /usr/src/sys/ufs/ffs/ffs_vnops.c:753
#27 0xc07e1a58 in VOP_GETPAGES_AP (a=0x0) at vnode_if.c:1918
#28 0xc0785a9e in vnode_pager_getpages (object=0xc16e36b4, m=0x0, count=0, reqpage=0)
    at vnode_if.h:1045
#29 0xc0600c4d in exec_map_first_page (imgp=0xce435b74) at vm_pager.h:130
#30 0xc06001b1 in do_execve (td=0xc1513320, args=0xce435cc4, mac_p=0x0)
    at /usr/src/sys/kern/kern_exec.c:380
#31 0xc05fff60 in kern_execve (td=0xc1513320, args=0xce435cc4, mac_p=0x0)
    at /usr/src/sys/kern/kern_exec.c:246
#32 0xc05ffe82 in execve (td=0xc1513320, uap=0x0) at /usr/src/sys/kern/kern_exec.c:181
#33 0xc07cdf9b in syscall (frame=
      {tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = -1077953120, tf_esi = 134613212, tf_ebp = -1077953192, tf_isp = -834445964, tf_ebx = 672056096, tf_edx = 672081100, tf_ecx = 672081104, tf_eax = 59, tf_trapno = 12, tf_err = 2, tf_eip = 672691583, tf_cs = 31, tf_eflags = 646, tf_esp = -1077953348, tf_ss = 47}) at /usr/src/sys/i386/i386/trap.c:951