On Thu, 4 Sep 2008, Jon Drukman wrote:

> I'm not much of a gdb expert but I did manage to trigger a segfault and get
> a backtrace. Does this tell you anything useful?

You seem to have built parts of this with optimize options (like -O2) which
does ruin some of the ability to see all details.

> 0x0000003977c61cda in fwrite () from /lib64/libc.so.6
> (gdb) bt
> #0 0x0000003977c61cda in fwrite () from /lib64/libc.so.6
> #1 0x00002b98d031d6d4 in showit (data=0x12661680, type=<value optimized
> out>,
> ptr=0x7fffe0311330 "About to connect() to gdata.youtube.com port 80
> (#0)\n", size=53) at sendf.c:679
> #2 0x00002b98d031d766 in Curl_debug (data=0x12661680, type=CURLINFO_TEXT,
> ptr=0x7fffe0311330 "About to connect() to gdata.youtube.com port 80
> (#0)\n", size=53, conn=0x2b98cb025c50)
> at sendf.c:726

So this is the DEBUGFUNCTION option in libcurl that somehow crashes when it
calles fwrite().

I would guess on some sort of memory corruption.

-- 
  / daniel.haxx.se
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