[Aaron Bush <abush@xxxxxxxxxxxxxxx>]

> TransactName is NULL. :(
> 
> Thanks for the gdb trace. Can you run gdb again, and type 'bt'?
> I'd be interested in knowing which of the two calls to dissect_transact_params()
> is passing NULL.

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This GDB was configured as "i386-redhat-linux"...
Core was generated by `./ethereal -i eth0'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/lib/libz.so.1...done.
Reading symbols from /usr/lib/libgtk-1.2.so.0...done.
Reading symbols from /usr/lib/libgdk-1.2.so.0...done.
Reading symbols from /usr/lib/libgmodule-1.2.so.0...done.
Reading symbols from /usr/lib/libglib-1.2.so.0...done.
Reading symbols from /lib/libdl.so.2...done.
Reading symbols from /usr/X11R6/lib/libXext.so.6...done.
Reading symbols from /usr/X11R6/lib/libX11.so.6...done.
Reading symbols from /lib/libm.so.6...done.
Reading symbols from /lib/libc.so.6...done.
Reading symbols from /lib/ld-linux.so.2...done.
Reading symbols from /lib/libnss_files.so.2...done.
#0  0x80a79dd in dissect_transact_params (pd=0x81d2150 "", offset=114, 
    fd=0x81a7be0, parent=0x0, tree=0x0, si={tid = 22531, uid = 40961, 
      mid = 6275, pid = 6995, conversation = 0x81c04e0, 
      request_val = 0x81b7d20, unicode = 1}, max_data=64, SMB_offset=58, 
    errcode=0, dirn=0, DataOffset=64, DataCount=0, ParameterOffset=56, 
    ParameterCount=6, TransactName=0x0) at packet-smb.c:9068
9068      TransactNameCopy = g_malloc(strlen(TransactName) + 1);
(gdb) bt
#0  0x80a79dd in dissect_transact_params (pd=0x81d2150 "", offset=114, 
    fd=0x81a7be0, parent=0x0, tree=0x0, si={tid = 22531, uid = 40961, 
      mid = 6275, pid = 6995, conversation = 0x81c04e0, 
      request_val = 0x81b7d20, unicode = 1}, max_data=64, SMB_offset=58, 
    errcode=0, dirn=0, DataOffset=64, DataCount=0, ParameterOffset=56, 
    ParameterCount=6, TransactName=0x0) at packet-smb.c:9068
#1  0x80a869c in dissect_transact_smb (pd=0x81d2150 "", offset=114, 
    fd=0x81a7be0, parent=0x0, tree=0x0, si={tid = 22531, uid = 40961, 
      mid = 6275, pid = 6995, conversation = 0x81c04e0, 
      request_val = 0x81b7d20, unicode = 1}, max_data=64, SMB_offset=58, 
    errcode=0, dirn=0) at packet-smb.c:9710
#2  0x80aabdb in dissect_smb (pd=0x81d2150 "", offset=90, fd=0x81a7be0, 
    tree=0x0, max_data=64) at packet-smb.c:11435
#3  0x808a45a in dissect_nbss_packet (pd=0x81d2150 "", offset=54, 
    fd=0x81a7be0, tree=0x0, max_data=68) at packet-nbns.c:1537
#4  0x808a5a6 in dissect_nbss (pd=0x81d2150 "", offset=54, fd=0x81a7be0, 
    tree=0x0) at packet-nbns.c:1599
#5  0x80ace6f in dissect_tcp (pd=0x81d2150 "", offset=54, fd=0x81a7be0, 
    tree=0x0) at packet-tcp.c:519
#6  0x8082055 in dissect_ip (pd=0x81d2150 "", offset=34, fd=0x81a7be0, 
    tree=0x0) at packet-ip.c:920
#7  0x8062dc0 in ethertype (etype=2048, offset=14, pd=0x81d2150 "", 
    fd=0x81a7be0, tree=0x0, fh_tree=0x0, item_id=239) at ethertype.c:82
#8  0x807ac74 in dissect_eth (pd=0x81d2150 "", offset=0, fd=0x81a7be0, 
    tree=0x0) at packet-eth.c:202
#9  0x80668ff in dissect_packet (pd=0x81d2150 "", fd=0x81a7be0,
tree=0x0)
    at packet.c:814
#10 0x8063fae in add_packet_to_packet_list (fdata=0x81a7be0,
cf=0x8137da0, 
    buf=0x81d2150 "") at file.c:763
#11 0x8064273 in wtap_dispatch_cb (user=0x8137da0 "H�\032\b\006", 
    phdr=0x81777c4, offset=40, buf=0x81d2150 "") at file.c:887
#12 0x80b69e7 in wtap_loop (wth=0x81777b0, count=0, 
    callback=0x8064128 <wtap_dispatch_cb>, user=0x8137da0
"H�\032\b\006", 
    err=0xbfffe3e8) at wtap.c:225
#13 0x80633ac in read_cap_file (cf=0x8137da0) at file.c:280
#14 0x805ac69 in do_capture (capfile_name=0x0) at capture.c:300
#15 0x80cd34a in capture_prep_ok_cb (ok_bt=0x81a8d48,
parent_w=0x81c62e0)
    at capture_dlg.c:366
#16 0x400b5c7d in gtk_marshal_NONE__NONE () from
/usr/lib/libgtk-1.2.so.0
#17 0x400e336d in gtk_handlers_run () from /usr/lib/libgtk-1.2.so.0
#18 0x400e27b2 in gtk_signal_real_emit () from /usr/lib/libgtk-1.2.so.0
#19 0x400e0905 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
#20 0x40055738 in gtk_button_clicked () from /usr/lib/libgtk-1.2.so.0
#21 0x40056d28 in gtk_real_button_released () from
/usr/lib/libgtk-1.2.so.0
#22 0x400b5c7d in gtk_marshal_NONE__NONE () from
/usr/lib/libgtk-1.2.so.0
#23 0x400e266b in gtk_signal_real_emit () from /usr/lib/libgtk-1.2.so.0
#24 0x400e0905 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
#25 0x40055678 in gtk_button_released () from /usr/lib/libgtk-1.2.so.0
#26 0x400566e2 in gtk_button_button_release () from
/usr/lib/libgtk-1.2.so.0
#27 0x400b5849 in gtk_marshal_BOOL__POINTER () from
/usr/lib/libgtk-1.2.so.0
#28 0x400e27eb in gtk_signal_real_emit () from /usr/lib/libgtk-1.2.so.0
#29 0x400e0905 in gtk_signal_emit () from /usr/lib/libgtk-1.2.so.0
#30 0x40115b9c in gtk_widget_event () from /usr/lib/libgtk-1.2.so.0
#31 0x400b57a2 in gtk_propagate_event () from /usr/lib/libgtk-1.2.so.0
#32 0x400b49fa in gtk_main_do_event () from /usr/lib/libgtk-1.2.so.0
#33 0x4015f00b in gdk_event_dispatch () from /usr/lib/libgdk-1.2.so.0
#34 0x4018cbe6 in g_main_dispatch () from /usr/lib/libglib-1.2.so.0
#35 0x4018d1a1 in g_main_iterate () from /usr/lib/libglib-1.2.so.0
#36 0x4018d341 in g_main_run () from /usr/lib/libglib-1.2.so.0
#37 0x400b4339 in gtk_main () from /usr/lib/libgtk-1.2.so.0
#38 0x80c98d7 in main (argc=3, argv=0xbffffcf4) at main.c:1377
(gdb)