OOPS, I probably should have checked all the locked threads before
posting this. Thread 6 seems to be the critical thread because I create
an ostringstream in a signal handler that interupts another
ostringstream creation.
gdb has this to say.
(gdb) thread 6
[Switching to thread 6 (Thread 0x7ff746539950 (LWP 30146))]#0
0x00007ff747063a94 in __lll_lock_wait () from /lib/libpthread.so.0
(gdb) bt
#0 0x00007ff747063a94 in __lll_lock_wait () from /lib/libpthread.so.0
#1 0x00007ff74705f190 in _L_lock_102 () from /lib/libpthread.so.0
#2 0x00007ff74705ea7e in pthread_mutex_lock () from /lib/libpthread.so.0
#3 0x00007ff746db28ef in std::locale::locale () from /usr/lib/libstdc++.so.6
#4 0x00007ff746de97af in std::basic_stringstream<char, std::char_traits<char>,
std::allocator<char> >::basic_stringstream () from /usr/lib/libstdc++.so.6
#5 0x000000000045f355 in FixAdminMessageFactory::createMsgHeader (
this=0x7ff74653875f, bo...@0x7ff7465386a0, ty...@0x7ff746538690)
at broker/FixAdminMessageFactory.cpp:34
#6 0x00000000004602a6 in FixAdminMessageFactory::createHeartBeatMsg (
this=0x7ff74653875f, testreq...@0x7ff746538750)
at broker/FixAdminMessageFactory.cpp:153
#7 0x000000000042b227 in heartbeat (signum=14) at transport/FIXTCP.cpp:40
#8 <signal handler called>
#9 0x00007ff74705ea78 in pthread_mutex_lock () from /lib/libpthread.so.0
#10 0x00007ff746db28ef in std::locale::locale () from /usr/lib/libstdc++.so.6
#11 0x00007ff746de84b2 in std::basic_ostringstream<char,
std::char_traits<char>, std::allocator<char> >::basic_ostringstream () from
/usr/lib/libstdc++.so.6
#12 0x000000000042c914 in transport::FeedTCP::_handleSessionMessage
(this=0xf815c0,
msg=0xf81840 "M 6B.Z09 S 41 16353 2015260 55854425\n")
at transport/FeedTCP.cpp:226
#13 0x000000000042ce5b in transport::FeedTCP::nextBlock (this=0xf815c0,
wait_us=1000) at transport/FeedTCP.cpp:196
#14 0x00000000004215e4 in datafeed::DataFeed::run (this=0xf806a0,
handler=0xf81690) at feed/DataFeed.cpp:120
#15 0x000000000043126b in MarketData::_run (this=0xf81690) at
base/MarketData.cpp:182
#16 0x00000000004314db in MarketData::_entryPoint (arg=0xf81690)
---Type <return> to continue, or q <return> to quit---
at base/MarketData.cpp:44
#17 0x00007ff74705d3ba in start_thread () from /lib/libpthread.so.0
#18 0x00007ff74661ffcd in clone () from /lib/libc.so.6
#19 0x0000000000000000 in ?? ()
--
Creating ostringstream causes deadlock
https://bugs.launchpad.net/bugs/453518
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