Version:            (using KDE 4.2.0)
OS:                Linux
Installed from:    Fedora RPMs

Seeing several of these a day:

Feb 24 12:37:22 berretto kernel: nepomukservices[3577] general protection
ip:3970856c2e sp:7fff57aa7420 error:0 in libQtCore.so.4.4.3[3970800000+21e000]

on almost all of our Fedora 10 machines.  May be x86_64 only.  cores are ending
up in ~/Documents.

Core was generated by `/usr/bin/nepomukservicestub nepomukstrigiservice'.
Program terminated with signal 11, Segmentation fault.
[New process 3560]
#0  QThread::d_func () at thread/qthread.h:125
125         Q_DECLARE_PRIVATE(QThread)
(gdb) bt
#0  QThread::d_func () at thread/qthread.h:125
#1  QThread::isRunning (this=0xff70000000000f7) at thread/qthread.cpp:403
#2  0x000000000085ba26 in Nepomuk::IndexScheduler::stop
(this=0xff70000000000f7)
    at
/usr/src/debug/kdebase-runtime-4.2.0/nepomuk/services/strigi/indexscheduler.cpp:150
#3  0x0000000000859d7e in ~StrigiService (this=0xbc1400)
    at
/usr/src/debug/kdebase-runtime-4.2.0/nepomuk/services/strigi/strigiservice.cpp:90
#4  0x000000397094fc31 in QObjectPrivate::deleteChildren (this=0xbae850)
    at kernel/qobject.cpp:1884
#5  0x00000039709589f7 in ~QObject (this=0xbb0410) at kernel/qobject.cpp:884
#6  0x0000000000403cc1 in ~ServiceControl (this=0xbb0410)
    at
/usr/src/debug/kdebase-runtime-4.2.0/nepomuk/servicestub/servicecontrol.cpp:39
#7  0x000000397094fc31 in QObjectPrivate::deleteChildren (this=0xae90d0)
    at kernel/qobject.cpp:1884
#8  0x00000039709589f7 in ~QObject (this=0x7fff465c9390) at
kernel/qobject.cpp:884
#9  0x0000003f1e78be61 in ~QApplication (this=0x7fff465c9390)
    at kernel/qapplication.cpp:1044
#10 0x00000000004035dc in main (argc=2, argv=0x7fff465c9738)
    at /usr/src/debug/kdebase-runtime-4.2.0/nepomuk/servicestub/main.cpp:149
(gdb) up
#1  QThread::isRunning (this=0xff70000000000f7) at thread/qthread.cpp:403
403         Q_D(const QThread);
(gdb) print QThread
Cannot access memory at address 0xff70000000000f7


(gdb) up
#4  0x000000397094fc31 in QObjectPrivate::deleteChildren (this=0xbae850)
    at kernel/qobject.cpp:1884
1884            delete currentChildBeingDeleted;
(gdb) print currentChildBeingDeleted
$2 = (QObject *) 0xbc1400
(gdb) print *currentChildBeingDeleted
$3 = {_vptr.QObject = 0xa6b150, static staticMetaObject = {d = {superdata =
0x0,
      stringdata = 0x39709cc740 "QObject", data = 0x39709cc7c0, extradata =
0x0}},
  d_ptr = 0xbf3ee0, static staticQtMetaObject = {d = {superdata = 0x0,
      stringdata = 0x39709d5980 "Qt", data = 0x39709d7620, extradata = 0x0}}}
(gdb) print *this
$4 = {<QObjectData> = {_vptr.QObjectData = 0x3970c23730, q_ptr = 0xbb0410,
    parent = 0x7fff465c9390, children = {{p = {static shared_null = {ref = {
              _q_value = 375}, alloc = 0, begin = 0, end = 0, sharable = 1,
            array = {0x0}}, d = 0xbf4030}, d = 0xbf4030}}, isWidget = 0,
    pendTimer = 0, blockSig = 0, wasDeleted = 1, ownObjectName = 0,
    sendChildEvents = 1, receiveChildEvents = 1, inEventHandler = 0,
    unused = 17664, postedEvents = 0}, pendingChildInsertedEvents = {{p = {
        static shared_null = {ref = {_q_value = 375}, alloc = 0, begin = 0,
          end = 0, sharable = 1, array = {0x0}}, d = 0x605820}, d = 0x605820}},
  threadData = 0xad7b50, currentSender = 0x0, currentChildBeingDeleted =
0xbc1400,
  eventFilters = {{p = {static shared_null = {ref = {_q_value = 375}, alloc =
0,
          begin = 0, end = 0, sharable = 1, array = {0x0}}, d = 0x605820},
      d = 0x605820}}, extraData = 0x0, connectedSignals = 17, objectName = {
    static null = {<No data fields>}, static shared_null = {ref = {_q_value =
138},
      alloc = 0, size = 0, data = 0x3970c26d9a, clean = 0, simpletext = 0,
      righttoleft = 0, asciiCache = 0, capacity = 0, reserved = 0, array =
{0}},
    static shared_empty = {ref = {_q_value = 41}, alloc = 0, size = 0,
      data = 0x3970c26dba, clean = 0, simpletext = 0, righttoleft = 0,
      asciiCache = 0, capacity = 0, reserved = 0, array = {0}}, d =
0x3970c26d80,
    static codecForCStrings = 0x0}, connectionLists = 0x0, senders = {{p = {
        static shared_null = {ref = {_q_value = 375}, alloc = 0, begin = 0,
          end = 0, sharable = 1, array = {0x0}}, d = 0x605820}, d = 0x605820}},
  deleteWatch = 0x0}

Version-Release number of selected component (if applicable):
kdebase-runtime-4.2.0-7.fc10.x86_64
qt-4.4.3-10.fc10.x86_64