线程中导致资源回收问题

[kbengine]

Core was generated by `./dbmgr --cid=401 --grouporder=1 --globalorder=401'.
Program terminated with signal 11, Segmentation fault.
#0 ?? () at /home/daikeliang/kbengine/kbe/src/lib/dependencies/boost/optional/optional.hpp:442

442 unspecified_bool_type safe_bool() const { return m_initialized ? &this_type::is_initialized : 0 ; }
Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.132.el6.x86_64 keyutils-libs-1.4-4.el6.x86_64 krb5-libs-1.10.3-15.el6_5.1.x86_64 libcom_err-1.41.12-18.el6.x86_64 libgcc-4.4.7-4.el6.x86_64 libselinux-2.0.94-5.3.el6_4.1.x86_64 libstdc++-4.4.7-4.el6.x86_64 mysql-libs-5.1.73-3.el6_5.x86_64 nss-softokn-freebl-3.14.3-9.el6.x86_64 openssl-1.0.1e-16.el6_5.7.x86_64 zlib-1.2.3-29.el6.x86_64
(gdb) where
#0 ?? () at /home/daikeliang/kbengine/kbe/src/lib/dependencies/boost/optional/optional.hpp:442
#1 0x0000000000713097 in reclaimObject (this=0xe54240, destroy=false) at /home/daikeliang/kbengine/kbe/src/lib/cstdkbe/objectpool.hpp:181
#2 KBEngine::DebugHelper::clearBufferedLog (this=0xe54240, destroy=false) at debug_helper.cpp:271
#3 0x000000000071392d in KBEngine::DebugHelper::onMessage (this=0xe54240, logType=, str=0x7f8bdcf99158 "Buffered_DBTasks::onFiniTask: Playing buffered task for entityID=1, dbid=0\n", length=)

at debug_helper.cpp:397

#4 0x00000000007147f0 in KBEngine::DebugHelper::info_msg (this=0xe54240, s="Buffered_DBTasks::onFiniTask: Playing buffered task for entityID=1, dbid=0\n") at debug_helper.cpp:496
#5 0x0000000000714924 in KBEngine::DebugHelper::info_msg (this=0xe54240, fmt=) at debug_helper.cpp:482
#6 0x0000000000626fa4 in KBEngine::Buffered_DBTasks::tryGetNextTask (this=0x7fffc16b1e90, pTask=) at buffered_dbtasks.cpp:160
#7 0x00000000006ea3fe in KBEngine::DBThread::tryGetTask (this=0x13ef4d0) at db_threadpool.cpp:68
#8 0x00000000006e3edc in KBEngine::thread::TPThread::threadFunc (arg=) at threadpool.cpp:617
#9 0x00000033168079d1 in start_thread () from /lib64/libpthread.so.0
#10 0x00000033164e8b6d in clone () from /lib64/libc.so.6