Application: kmail (4.12.1)
KDE Platform Version: 4.12.1 (Compiled from sources)
Qt Version: 4.8.5
Operating System: Linux 3.13.0-gentoo-r1 x86_64
Distribution: "NAME=Gentoo"

-- Information about the crash:
- What I was doing when the application crashed:

Closed KMail after checked e-mails on online imap resource.

-- Backtrace:
Application: KMail (kmail), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f14109047c0 (LWP 19453))]

Thread 3 (Thread 0x7f13ecd32700 (LWP 19589)):
#0  pthread_cond_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f14012c19c4 in WTF::TCMalloc_PageHeap::scavengerThread (this=<optimized out>) at wtf/FastMalloc.cpp:2495
#2  0x00007f14012c19f9 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1618
#3  0x00007f140c0c9333 in start_thread (arg=0x7f13ecd32700) at pthread_create.c:309
#4  0x00007f140e2bffbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f13e53f5700 (LWP 19696)):
#0  pthread_cond_timedwait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f140e5fd072 in wait (time=<optimized out>, this=<optimized out>) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=0xdfd96c, mutex=0x189, mutex@entry=0x1428938, time=619) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f140e5f04a6 in QThreadPoolThread::run (this=0x1427ab0) at concurrent/qthreadpool.cpp:141
#4  0x00007f140e5fcbaf in QThreadPrivate::start (arg=0x1427ab0) at thread/qthread_unix.cpp:338
#5  0x00007f140c0c9333 in start_thread (arg=0x7f13e53f5700) at pthread_create.c:309
#6  0x00007f140e2bffbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f14109047c0 (LWP 19453)):
[KCrash Handler]
#6  malloc_consolidate (av=av@entry=0x7f1390000020) at malloc.c:4079
#7  0x00007f140e2527e1 in _int_free (av=0x7f1390000020, p=0x7f139000bd60, have_lock=0) at malloc.c:3987
#8  0x00007f13ecd70084 in PrpcSessionFree (ses=0x7f139000b640) at Dkernel.c:2984
#9  0x00007f13ecd43ba0 in virtodbc__SQLFreeConnect (hdbc=0x7f139000a510) at ../../libsrc/Wi/CLIsql1.c:1691
#10 0x00007f13ed8a6f84 in _iodbcdm_driverunload (hdbc=hdbc@entry=0x7f13900082a0, ver=ver@entry=3) at connect.c:1406
#11 0x00007f13ed8aefeb in SQLFreeConnect_Internal (hdbc=hdbc@entry=0x7f13900082a0, ver=ver@entry=3) at hdbc.c:293
#12 0x00007f13ed8be65c in _SQLFreeHandle_DBC (handle=0x7f13900082a0, handleType=2) at odbc3.c:379
#13 SQLFreeHandle (handleType=<optimized out>, handle=0x7f13900082a0) at odbc3.c:475
#14 0x00007f13edb07613 in Soprano::ODBC::Connection::~Connection (this=0x7f139000b350, __in_chrg=<optimized out>) at /var/tmp/portage/dev-libs/soprano-2.9.4/work/soprano-2.9.4/backends/virtuoso/odbcconnection.cpp:56
#15 0x00007f13edb07809 in Soprano::ODBC::Connection::~Connection (this=0x7f139000b350, __in_chrg=<optimized out>) at /var/tmp/portage/dev-libs/soprano-2.9.4/work/soprano-2.9.4/backends/virtuoso/odbcconnection.cpp:61
#16 0x00007f13edb0930b in Soprano::ODBC::ConnectionPool::~ConnectionPool (this=0xd94320, __in_chrg=<optimized out>) at /var/tmp/portage/dev-libs/soprano-2.9.4/work/soprano-2.9.4/backends/virtuoso/odbcconnectionpool.cpp:115
#17 0x00007f13edb09429 in Soprano::ODBC::ConnectionPool::~ConnectionPool (this=0xd94320, __in_chrg=<optimized out>) at /var/tmp/portage/dev-libs/soprano-2.9.4/work/soprano-2.9.4/backends/virtuoso/odbcconnectionpool.cpp:117
#18 0x00007f13edaf7d62 in Soprano::VirtuosoModel::~VirtuosoModel (this=0xec86b0, __in_chrg=<optimized out>) at /var/tmp/portage/dev-libs/soprano-2.9.4/work/soprano-2.9.4/backends/virtuoso/virtuosomodel.cpp:178
#19 0x00007f13edaf7e39 in Soprano::VirtuosoModel::~VirtuosoModel (this=0xec86b0, __in_chrg=<optimized out>) at /var/tmp/portage/dev-libs/soprano-2.9.4/work/soprano-2.9.4/backends/virtuoso/virtuosomodel.cpp:180
#20 0x00007f1406832305 in ~Private (this=0xbd06c0, __in_chrg=<optimized out>) at /var/tmp/portage/kde-base/nepomuk-core-4.12.1/work/nepomuk-core-4.12.1/libnepomukcore/resource/nepomukmainmodel.cpp:59
#21 Nepomuk2::MainModel::~MainModel (this=0xeaa9b0, __in_chrg=<optimized out>) at /var/tmp/portage/kde-base/nepomuk-core-4.12.1/work/nepomuk-core-4.12.1/libnepomukcore/resource/nepomukmainmodel.cpp:135
#22 0x00007f1406832359 in Nepomuk2::MainModel::~MainModel (this=0xeaa9b0, __in_chrg=<optimized out>) at /var/tmp/portage/kde-base/nepomuk-core-4.12.1/work/nepomuk-core-4.12.1/libnepomukcore/resource/nepomukmainmodel.cpp:136
#23 0x00007f140682ea29 in Nepomuk2::ResourceManager::~ResourceManager (this=0xc2e880, __in_chrg=<optimized out>) at /var/tmp/portage/kde-base/nepomuk-core-4.12.1/work/nepomuk-core-4.12.1/libnepomukcore/resource/resourcemanager.cpp:261
#24 0x00007f140682eb09 in Nepomuk2::ResourceManager::~ResourceManager (this=0xc2e880, __in_chrg=<optimized out>) at /var/tmp/portage/kde-base/nepomuk-core-4.12.1/work/nepomuk-core-4.12.1/libnepomukcore/resource/resourcemanager.cpp:267
#25 0x00007f140e715829 in QObjectPrivate::deleteChildren (this=this@entry=0x96c5f0) at kernel/qobject.cpp:1907
#26 0x00007f140e7151b2 in QObject::~QObject (this=0x7fff99a7f020, __in_chrg=<optimized out>) at kernel/qobject.cpp:926
#27 0x00007f140ec25207 in QApplication::~QApplication (this=0x7fff99a7f020, __in_chrg=<optimized out>) at kernel/qapplication.cpp:1098
#28 0x0000000000402e2f in ~KMailApplication (this=0x7fff99a7f020, __in_chrg=<optimized out>) at /var/tmp/portage/kde-base/kmail-4.12.1-r1/work/kmail-4.12.1/kmail/main.cpp:44
#29 main (argc=<optimized out>, argv=<optimized out>) at /var/tmp/portage/kde-base/kmail-4.12.1-r1/work/kmail-4.12.1/kmail/main.cpp:116

Reported using DrKonqi