Hi
I have some simple app, that segfaults on exit. Here is the
code(simplifid, with unrelated parts removed):
class CMysteryDatabasePoolData : public SomeLocalSingleton {
shared_ptr<connection_pool> _pool;
public:
CMysteryDatabasePoolData() {
this->_pool=shared_ptr<connection_pool>(new
connection_pool(poolSize));
for (size_t i=0; i !=poolSize; ++i) {
session &sql=_pool->at(i);
sql.open(type,dsnURL.str());
}
};
connection_pool& pool() const {return *(this->_pool) };
};
class CMysteryDatabaseGateway : public boost::noncopyable {
protected:
shared_ptr<session> sql;
public:
CMysteryDatabaseGateway() {
sql=shared_ptr<session>(new
session(CMysteryDatabasePool().pool()));
}
};
class CMysteryTestGateway : public CMysteryDatabaseGateway {
public:
string getTest() {
string ret;
*sql<<"select 'Test' from SYSIBM.SYSDUMMY1",into(ret);
return ret;
}
};
and finally:
int main(int,char**) {
CMysteryTestGateway tgw;
return !tgw.getTest().compare("Test");
}
This code will fail on clean-uo with following backtrace:
#0 0xf536c97e in sqloxltc_app () from /opt/ibm/db2/V9.7/lib32/libdb2.so
#1 0xf547d7d4 in CLI_dstRequestHLatch () from /opt/ibm/db2/V9.7/lib32/libdb2.so
#2 0xf53f0e73 in SQLDisconnect () from /opt/ibm/db2/V9.7/lib32/libdb2.so
#3 0xf6503f2f in SQLDisconnect () from /usr/lib/libodbc.so.1
#4 0xf7676992 in soci::odbc_session_backend::clean_up () from
/usr/lib/libsoci_odbc.so
#5 0xf7676d5d in soci::odbc_session_backend::~odbc_session_backend () from
/usr/lib/libsoci_odbc.so
#6 0xf748bde6 in soci::session::~session () from
/usr/lib/libsoci_core-gcc-3_0-3.0.0.so
#7 0xf7485bf0 in soci::connection_pool::~connection_pool () from
/usr/lib/libsoci_core-gcc-3_0-3.0.0.so
#8 0xf77316b8 in boost::checked_delete<soci::connection_pool> (x=0x99904c8) at
/usr/include/boost/checked_delete.hpp:34
#9 0xf77317c4 in
boost::detail::sp_counted_impl_p<soci::connection_pool>::dispose
(this=0x99910b0)
at /usr/include/boost/smart_ptr/detail/sp_counted_impl.hpp:78
#10 0x0808cb0e in boost::detail::sp_counted_base::release (this=0x99910b0) at
/usr/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp:145
#11 0x0808cb46 in ~shared_count (this=0xf777f26c) at
/usr/include/boost/smart_ptr/detail/shared_count.hpp:217
#12 0xf7730f96 in ~shared_ptr (this=0xf777f268) at
/usr/include/boost/smart_ptr/shared_ptr.hpp:169
#13 0xf77313a3 in ~CMysteryDatabasePoolData (this=0xf777f268) at
/home/chollya/Mystery/src/libmysterycommon/database.h:19
#14 0xf7223ab9 in exit () from /lib/i686/cmov/libc.so.6
#15 0xf720b45d in __libc_start_main () from /lib/i686/cmov/libc.so.6
#16 0x0808b9f1 in _start ()
--
Denis Chapligin
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