On Mon, Mar 7, 2016 at 6:59 AM, Waitman Gobble <gobble.wa_at_gmail.com> wrote:
> On Mon, Mar 7, 2016 at 1:54 AM, Daniel Stenberg <daniel_at_haxx.se> wrote:
>> On Mon, 7 Mar 2016, Waitman Gobble wrote:
>>
>>> I'm still seeing it hang, tomorrow I'll attach to debugger and see what is
>>> sticking.
>>
>>
>> If you show us a full program that reproduces the hang we might be able to
>> tell you why.
>>
>>
>> --
>>
>> / daniel.haxx.se
>> -------------------------------------------------------------------
>> List admin: https://cool.haxx.se/list/listinfo/curl-library
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>
> OK, how about this.
>
> http://git.cloudqx.com/root/test-curl
>
> --
> Waitman Gobble
> Los Altos California USA
> 650-900-8557

At the moment it appears to be stuck in curl_multi_wait() in lib/multi.c

# gdb testcurl
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
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welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd"...
(gdb) run
Starting program: /b/build/test-ex/testcurl
[New LWP 100141]
check len: 134610 post size: 134610 post length: 172
before perform
[New Thread 802c06400 (LWP 100141/testcurl)]
^C
Program received signal SIGINT, Interrupt.
[Switching to Thread 802c06400 (LWP 100141/testcurl)]
0x0000000801468e6a in _poll () from /lib/libc.so.7
(gdb) bt
#0 0x0000000801468e6a in _poll () from /lib/libc.so.7
#1 0x0000000802417d26 in pthread_suspend_all_np () from /lib/libthr.so.3
#2 0x00000008008554bb in Curl_poll () from /b/build/curl/distlib/libcurl.so.4
#3 0x00000008008515ec in curl_multi_wait () from
/b/build/curl/distlib/libcurl.so.4
#4 0x000000080084bcf8 in curl_easy_perform () from
/b/build/curl/distlib/libcurl.so.4
#5 0x000000000040167a in main () at testcurl.cpp:51
(gdb) step
Single stepping until exit from function _poll,
which has no line number information.
0x00000008014d470c in memcpy () from /lib/libc.so.7
(gdb) step
Single stepping until exit from function memcpy,
which has no line number information.
^C
Program received signal SIGINT, Interrupt.
0x0000000801468e6a in _poll () from /lib/libc.so.7
(gdb) step
Single stepping until exit from function _poll,
which has no line number information.
0x00000008014d470c in memcpy () from /lib/libc.so.7
(gdb) step
Single stepping until exit from function memcpy,
which has no line number information.

-- 
Waitman Gobble
Los Altos California USA
650-900-8557
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