Re: netisr panic?

Adrian Chadd wrote:
> It's a NULL ponter deref. This is my line 484 in if_ethersubr.c:
> 
>         eh = mtod(m, struct ether_header *);
> 
> 
> .. if that's yours, see if eh is NULL?

(kgdb) frame 7
#7  0xffffffff8050f534 in ether_nh_input (m=0xfffffe012521e700)
    at /usr/src/sys/net/if_ethersubr.c:484
484             eh = mtod(m, struct ether_header *);
(kgdb) print eh
No symbol "eh" in current context.
(kgdb) print *m
$2 = {m_hdr = {mh_next = 0x100000000000000, mh_nextpkt = 0x10000000000, 
    mh_data = 0x0, mh_len = 60, mh_flags = 4259842, mh_type = 0, 
    pad = "\000\000\000\000\000"}, M_dat = {MH = {MH_pkthdr = {
        rcvif = 0xfffffe000a1c2000, header = 0xffffffff, len = 60, flowid = 0, 
        csum_flags = 3840, csum_data = 65535, tso_segsz = 0, PH_vt = {
          vt_vtag = 4, vt_nrecs = 4}, tags = {slh_first = 0x3c000000}}, 
      MH_dat = {MH_ext = {
          ext_buf = 0x69e5498600000000 <Address 0x69e5498600000000 out of bounds>, ext_free = 0x10602, ext_arg1 = 0xc000000070000, ext_arg2 = 0x100, 
          ext_size = 2048, ref_cnt = 0xfffffe0125236d8c, ext_type = 6}, 
        MH_databuf = "\000\000\000\000\206Iåi\002\006\001\000\000\000\000\000\000\000\a\000\000\000\f\000\000\001\000\000\000\000\000\000\000\b\000\000\000\000\000\000\214m#%\001þÿÿ\006", '\0' <repeats 118 times>}}, 
    M_databuf = "\000 \034\n\000þÿÿÿÿÿÿ\000\000\000\000<\000\000\000\000\000\000\000\000\017\000\000ÿÿ\000\000\000\000\004\000\000\000\000\000\000\000\000<\000\000\000\000\000\000\000\000\206Iåi\002\006\001\000\000\000\000\000\000\000\a\000\000\000\f\000\000\001\000\000\000\000\000\000\000\b\000\000\000\000\000\000\214m#%\001þÿÿ\006", '\0' <repeats 118 times>}}


Ian

-- 
Ian Freislich