ace_self_wrapper+0x26                                                           
kdb_backtrace(c08b78fb,c0c8d3a9,c952f6e8,c95338b8,e9b797e4,...) at kdb_backtrace
+0x29                                                                           
_witness_debugger(c0c8d3a9,c0f4d3f8,c0c96546,c95338b8,c0ca09a1,...) at _witness_
debugger+0x25                                                                   
witness_checkorder(c0f4d3f8,1,c0ca09a1,d3,0,...) at witness_checkorder+0x839    
_sx_slock(c0f4d3f8,0,c0ca09a1,d3,e9b7983c,...) at _sx_slock+0x85                
sctp_init_ifns_for_vrf(3,c9f6ad20,e9b798c0,c08c7528,c9e66780,...) at sctp_init_i
fns_for_vrf+0x30                                                                
sctp_addr_change(c9f0f900,1,e9b798c0,c08c691c,c9e66780,...) at sctp_addr_change+
0x2c                                                                            
rt_newaddrmsg(1,c9f0f900,0,ca060000,c9f0f900,...) at rt_newaddrmsg+0x3f         
rtinit(c9f0f900,1,5,c0df3d3c,51573592,...) at rtinit+0x381                      
in_ifinit(0,c0c9f15e,1aa,1a6,c9c2ec00,...) at in_ifinit+0x8f6                   
in_control(ca04e338,8040691a,c99d3c80,c9c2ec00,c9f6ad20,...) at in_control+0xccb
                                                                                
ifioctl(ca04e338,8040691a,c99d3c80,c9f6ad20,c9f1f700,...) at ifioctl+0x14f0     
soo_ioctl(c9f50b28,8040691a,c99d3c80,c958f280,c9f6ad20,...) at soo_ioctl+0x415  
kern_ioctl(c9f6ad20,3,8040691a,c99d3c80,8c0410,...) at kern_ioctl+0x1fd         
ioctl(c9f6ad20,e9b79cf8,c,c0c9f1df,c0d6fbc8,...) at ioctl+0x134                 
syscall(e9b79d38) at syscall+0x2a3                                              
Xint0x80_syscall() at Xint0x80_syscall+0x20                                     
--- syscall (54, FreeBSD ELF32, ioctl), eip = 0x281bfa13, esp = 0xbfbfe61c, ebp