https://bugs.kde.org/show_bug.cgi?id=330215
Bug ID: 330215
Summary: Crash in QPSQL driver when shutting down Akonadi
Classification: Unclassified
Product: Akonadi
Version: 1.11.0
Platform: unspecified
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: server
Assignee: kdepim-bugs@kde.org
Reporter: dvra...@redhat.com
QPSQL driver crashes when destroying QSqlQueries cached in QueryCache, because
they are being destroyed after QSqlDatabase connection has been closed.
I think this is a bug in Qt because, because it should check whether QSqlDriver
has already been deleted before using it. I checked Qt5 code and it should be
fine there. Anyway we should
workaround this in Akonadi.
Program received signal SIGSEGV, Segmentation fault.
parseInput (conn=conn@entry=0x40000000b) at fe-exec.c:1646
1646 if (PG_PROTOCOL_MAJOR(conn->pversion) >= 3)
(gdb) bt
#0 parseInput (conn=conn@entry=0x40000000b) at fe-exec.c:1646
#1 0x00007f5836497b08 in PQgetResult (conn=conn@entry=0x40000000b) at
fe-exec.c:1722
#2 0x00007f5836497d8f in PQexecStart (conn=conn@entry=0x40000000b) at
fe-exec.c:1895
#3 0x00007f5836497f41 in PQexec (conn=0x40000000b, query=0xd55a98
"DEALLOCATE qpsqlpstmt_e4") at fe-exec.c:1804
#4 0x00007f58366bdd78 in QPSQLDriverPrivate::exec (this=0xda1870,
stmt=<optimized out>) at ../../../sql/drivers/psql/qsql_psql.cpp:177
#5 0x00007f58366be324 in QPSQLDriverPrivate::exec (this=0xda1870,
stmt="DEALLOCATE qpsqlpstmt_e4") at ../../../sql/drivers/psql/qsql_psql.cpp:187
#6 0x00007f58366be45e in qDeallocatePreparedStmt (d=d@entry=0xda14c0) at
../../../sql/drivers/psql/qsql_psql.cpp:288
#7 0x00007f58366be877 in QPSQLResult::~QPSQLResult (this=0xf0fa90,
__in_chrg=<optimized out>) at ../../../sql/drivers/psql/qsql_psql.cpp:309
#8 0x00007f58366be8d9 in QPSQLResult::~QPSQLResult (this=0xf0fa90,
__in_chrg=<optimized out>) at ../../../sql/drivers/psql/qsql_psql.cpp:312
#9 0x0000003a7421182e in QSqlQuery::~QSqlQuery (this=0x40000000b,
__in_chrg=<optimized out>) at kernel/qsqlquery.cpp:245
#10 0x000000000057e3d5 in QHashNode<QString, QSqlQuery>::~QHashNode
(this=0xd705a0) at /usr/include/QtCore/qhash.h:216
#11 0x000000000057e3a5 in QHashNode<QString, QSqlQuery>::~QHashNode
(this=0xd705a0) at /usr/include/QtCore/qhash.h:216
#12 0x000000000057e32d in QHash<QString, QSqlQuery>::deleteNode2
(node=0xd705a0) at /usr/include/QtCore/qhash.h:521
#13 0x0000003a6dc98799 in QHashData::free_helper (this=0xd77ff0,
node_delete=0x57e310 <QHash<QString,
QSqlQuery>::deleteNode2(QHashData::Node*)>) at tools/qhash.cpp:275
#14 0x000000000057e364 in QHash<QString, QSqlQuery>::freeData
(this=0xd70540, x=0xd77ff0) at /usr/include/QtCore/qhash.h:570
#15 0x000000000057e576 in QHash<QString, QSqlQuery>::~QHash (this=0xd70540)
at /usr/include/QtCore/qhash.h:283
#16 0x000000000057e525 in QHash<QString, QSqlQuery>::~QHash (this=0xd70540)
at /usr/include/QtCore/qhash.h:283
#17 0x000000000057e4f8 in Cache::~Cache (this=0xd70530) at
/home/progdan/projects/kde/akonadi/server/src/storage/querycache.cpp:34
#18 0x000000000057de05 in Cache::~Cache (this=0xd70530) at
/home/progdan/projects/kde/akonadi/server/src/storage/querycache.cpp:34
#19 0x000000000057de29 in Cache::~Cache (this=0xd70530) at
/home/progdan/projects/kde/akonadi/server/src/storage/querycache.cpp:34
#20 0x000000000057e4a2 in qThreadStorage_deleteData<Cache> (d=0xd70530) at
/usr/include/QtCore/qthreadstorage.h:97
#21 0x000000000057e45f in QThreadStorage<Cache*>::deleteData (x=0xd70530)
at /usr/include/QtCore/qthreadstorage.h:140
#22 0x0000003a6dc7a44a in QThreadStorageData::finish (p=0xd51d98) at
thread/qthreadstorage.cpp:203
#23 0x0000003a6dd872d1 in QCoreApplicationPrivate::~QCoreApplicationPrivate
(this=0xd51f90, __in_chrg=<optimized out>) at kernel/qcoreapplication.cpp:473
#24 0x0000003a6dd874c9 in QCoreApplicationPrivate::~QCoreApplicationPrivate
(this=0xd51f90, __in_chrg=<optimized out>) at kernel/qcoreapplication.cpp:490
#25 0x0000003a6dd9e065 in cleanup (pointer=<optimized out>) at
../../src/corelib/tools/qscopedpointer.h:62
#26 ~QScopedPointer (this=0xd51f78, __in_chrg=<optimized out>) at
../../src/corelib/tools/qscopedpointer.h:100
#27 QObject::~QObject (this=0xd51f70, __in_chrg=<optimized out>) at
kernel/qobject.cpp:816
#28 0x0000003a6dd88249 in QCoreApplication::~QCoreApplication
(this=0xd51f70, __in_chrg=<optimized out>) at kernel/qcoreapplication.cpp:865
#29 0x00000000004a07fe in QScopedPointerDeleter<QCoreApplication>::cleanup
(pointer=0xd51f70) at /usr/include/QtCore/qscopedpointer.h:62
#30 0x00000000004a88bf in QScopedPointer<QCoreApplication,
QScopedPointerDeleter<QCoreApplication> >::~QScopedPointer
(this=0x7ffff65a2a70) at /usr/include/QtCore/qscopedpointer.h:100
#31 0x00000000004a29a5 in QScopedPointer<QCoreApplication,
QScopedPointerDeleter<QCoreApplication> >::~QScopedPointer
(this=0x7ffff65a2a70) at /usr/include/QtCore/qscopedpointer.h:98
#32 0x00000000004a1930 in AkApplication::~AkApplication
(this=0x7ffff65a2a60) at
/home/progdan/projects/kde/akonadi/shared/akapplication.cpp:45
#33 0x00000000004a0825 in
AkApplicationImpl<QCoreApplication>::~AkApplicationImpl (this=0x7ffff65a2a60)
at /home/progdan/projects/kde/akonadi/shared/akapplication.h:84
#34 0x00000000004a0275 in
AkApplicationImpl<QCoreApplication>::~AkApplicationImpl (this=0x7ffff65a2a60)
at /home/progdan/projects/kde/akonadi/shared/akapplication.h:84
#35 0x000000000049ffac in main (argc=1, argv=0x7ffff65a2cb8) at
/home/progdan/projects/kde/akonadi/server/src/main.cpp:83
Reproducible: Always
Steps to Reproduce:
1. Use QPSQL backend with Akonadi
2. Use Akonadi a little so that there are some queries in QueryCache
3. akonadictl stop
Actual Results:
Crash
Expected Results:
No crash
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