[Qt-interest] segmentation fault with QtSql mysql driver

[pepone.onrez]

Hi there

I using Qt-4.4.2 mysql drivers in a program to make a simple query,
the program runs fine but if i stop the mysql server while a query is
running the program crash, as show it the next stack trace the crash
occurs when QSqlQuery goes out of scope. Should i report a bug to Qt
Mysql or both for this issue?

My enviroment is:
Qt-4.4.2
mysql-5.1.30,
gcc-4.1.2
linux centos 5.2


#0  0x00c535f8 in mysql_next_result () from
/usr/local/lib/mysql/libmysqlclient_r.so.16
#1  0x0041aaa0 in QMYSQLResult::cleanup (this=0x8199bd0) at
drivers/mysql/qsql_mysql.cpp:412
#2  0x0041b074 in ~QMYSQLResult (this=0x8199bd0) at
drivers/mysql/qsql_mysql.cpp:391
#3  0x003ffa0b in ~QSqlQueryPrivate (this=0x818f810) at kernel/qsqlquery.cpp:97
#4  0x003ffa7d in ~QSqlQuery (this=0xb57c67c8) at kernel/qsqlquery.cpp:248
#5  0x0809d11d in PermissionsVerifierI::checkPermissions
(this=0x81774a0, user=@0xb57c6be8, passwd=@0xb57c6be4,
reason=@0xb57c6b28, current=@0xb57c6900) at
PermissionsVerifierI.cpp:178
#6  0x00146be5 in Glacier2::PermissionsVerifier::__write () from
/usr/lib/libGlacier2.so.33
#7  0x005ac228 in Ice::Object::__collocDispatch () from /usr/lib/libIce.so.33
#8  0x00148a21 in
IceDelegateD::Glacier2::PermissionsVerifier::checkPermissions () from
/usr/lib/libGlacier2.so.33
#9  0x001477cb in
IceProxy::Glacier2::PermissionsVerifier::checkPermissions () from
/usr/lib/libGlacier2.so.33
#10 0x08099c68 in
IceProxy::Glacier2::PermissionsVerifier::checkPermissions
(this=0x8189818, userId=@0xb57c6be8, password=@0xb57c6be4,
reason=@0xb57c6b28) at /usr/include/Glacier2/PermissionsVerifier.h:155
#11 0x080970c1 in PollingChatSessionFactoryI::create (this=0x8177478,
name=@0xb57c6be8, password=@0xb57c6be4, c=@0xb57c6d54) at
PollingChatSessionFactoryI.cpp:80
#12 0x080722d6 in PollingChat::PollingChatSessionFactory::___create
(this=0x8177478, __inS=@0xb57c6d54, __current=@0xb57c6d54) at
PollingChat.cpp:2363
#13 0x08072544 in PollingChat::PollingChatSessionFactory::__dispatch
(this=0x8177478, in=@0xb57c6d54, current=@0xb57c6d54) at
PollingChat.cpp:2396
#14 0x0053fdab in IceInternal::Incoming::invoke () from /usr/lib/libIce.so.33
#15 0x00509f7c in Ice::ConnectionI::invokeAll () from /usr/lib/libIce.so.33
#16 0x00510f2e in Ice::ConnectionI::message () from /usr/lib/libIce.so.33
#17 0x0063a544 in IceInternal::ThreadPool::run () from /usr/lib/libIce.so.33
#18 0x0063af5f in IceInternal::ThreadPool::EventHandlerThread::run ()
from /usr/lib/libIce.so.33
#19 0x001c10ae in IceUtil::Thread::~Thread$base () from
/usr/lib/libIceUtil.so.33
#20 0x001d645b in start_thread () from /lib/libpthread.so.0
#21 0x002b8e5e in clone () from /lib/libc.so.6
(gdb)

(gdb) frame 5
#5  0x0809d11d in PermissionsVerifierI::checkPermissions
(this=0x81774a0, user=@0xb57c6be8, passwd=@0xb57c6be4,
reason=@0xb57c6b28, current=@0xb57c6900) at
PermissionsVerifierI.cpp:178
178         return false;
(gdb) info locals
sync = {_mutex = @0x81774ac, _acquired = true}
db = {static defaultConnection = 0x42e015 "qt_sql_default_connection",
d = 0x817fea8}
query = {d = 0x818f810}
hash = {static npos = 4294967295, _M_dataplus =
{<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No
data fields>}, <No data fields>}, _M_p = 0x819bedc
"8aa7c24ec4e256ce9b4bc11f7880f695"}}
queryString = <incomplete type>


Regards,

José Manuel, Gutíerrez de la Concha