Ethereal-dev: Re: [Ethereal-dev] FreeBSD buildbot failures

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From: Gerald Combs <gerald@xxxxxxxxxxxx>
Date: Sun, 17 Jul 2005 17:38:24 -0500
Guy Harris wrote:
> LEGO wrote:
> 
>> I think './tethereal -G ...' fails as the new radius defines almost
>> three thousand new fields we have to increase the timeout from 600
>> seconds to something higher.
> 
> 
> It's failing with SIGSEGV ("signal 11"), so it's probably something
> other than that.
> 
>> As for the segmentation fault in the test-menagerie I did several
>> rounds of fuzz-testing on the new code and did not get any.
> 
> 
> If it's a problem with the code to read the RADIUS dictionary that fails
> only on some platforms (it's not failing for me on OS X), that might
> explain both failures.
> 
> Gerald, can you get a stack trace of the crashes?  (Can the scripts get
> run gdb on the Tethereal binary and resulting core file - core.$PID -
> and get a backtrace?)

The problem was with the array that the RADIUS dissector passed to
proto_register_subtree_array().  Here's the trace:

#0  proto_register_subtree_array (indices=0x2000000000478018,
num_indices=1421)
    at proto.c:3057
3057                    **ptr = num_tree_types;
(gdb) bt
#0  proto_register_subtree_array (indices=0x2000000000478018,
num_indices=1421)
    at proto.c:3057
#1  0x2000000040dfbfd0 in proto_register_radius () at packet-radius.c:831
#2  0x2000000040ffdbc0 in register_all_protocols () at register.c:419
#3  0x20000000407ab330 in proto_init (
    plugin_dir=0x2000000000064680 "/tmp/inst/lib/ethereal/plugins/0.10.11",
    register_all_protocols=0x20000000400d60e0,
    register_all_protocol_handoffs=0x20000000400d6120) at proto.c:307
#4  0x2000000040795010 in epan_init (
    plugin_dir=0x2000000000064680 "/tmp/inst/lib/ethereal/plugins/0.10.11",
    register_all_protocols=0x20000000400d60e0,
    register_all_handoffs=0x20000000400d6120,
    report_failure=@0x2000000000074a20: 0x200000000003a480
<failure_message>,
    report_open_failure=@0x20000000000746c0: 0x20000000000391b0
<open_failure_message>,
    report_read_failure=@0x20000000000746d0: 0x200000000003a520
<read_failure_message>) at epan.c:64
#5  0x20000000000307b0 in main (argc=3, argv=0x9fffffffffffeb20)
    at tethereal.c:668

I've checked in a fix.