Akregator

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------- Additional Comments From mikelima cirulla net  2005-11-16 10:51 -------
Created an attachment (id=13495)
 --> (http://bugs.kde.org/attachment.cgi?id=13495&action=view)
The strace output for the failing execution

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------- Additional Comments From frank.osterfeld kdemail net  2006-01-04 13:51 -------
Have you upgraded to 3.5.0? Does Akregator work now for you?

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------- Additional Comments From murtaza_iit84 yahoo com  2006-01-04 17:15 -------
Created an attachment (id=14131)
 --> (http://bugs.kde.org/attachment.cgi?id=14131&action=view)
Backtrace produced by KDE crash handler

Akregator crashes on startup saying "Communication problem with akregator, it
probably crashed." This problem started when I upgraded to KDE 3.5.0 and also
upgraded akregator with packages obtained from
http://pkg-kde.alioth.debian.org.

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------- Additional Comments From thiago kde org  2006-01-06 15:51 -------
Pasting the backtrace:

(no debugging symbols found)
[KCrash handler]
#3  0x4241f89a in c4_FormatB::Define ()
   from /usr/lib/kde3/libakregator_mk4storage_plugin.so
#4  0x4242491b in c4_HandlerSeq::Prepare ()
   from /usr/lib/kde3/libakregator_mk4storage_plugin.so
#5  0x42424e7a in c4_Persist::LoadAll ()
   from /usr/lib/kde3/libakregator_mk4storage_plugin.so
#6  0x4242509c in c4_Storage::c4_Storage ()
   from /usr/lib/kde3/libakregator_mk4storage_plugin.so
#7  0x42407e54 in Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl ()
   from /usr/lib/kde3/libakregator_mk4storage_plugin.so
#8  0x4240844a in Akregator::Backend::StorageMK4Impl::archiveFor ()
   from /usr/lib/kde3/libakregator_mk4storage_plugin.so
#9  0x400c1e96 in Akregator::Feed::loadArticles ()
   from /usr/lib/libakregatorprivate.so
#10 0x400c2a02 in Akregator::Feed::fromOPML ()
   from /usr/lib/libakregatorprivate.so
#11 0x400c2e22 in Akregator::FeedList::parseChildNodes ()
   from /usr/lib/libakregatorprivate.so
#12 0x400c339a in Akregator::FeedList::readFromXML ()
   from /usr/lib/libakregatorprivate.so
#13 0x422e49ba in Akregator::View::loadFeeds ()
   from /usr/lib/kde3/libakregatorpart.so
#14 0x422e4d4a in Akregator::Part::openFile ()
   from /usr/lib/kde3/libakregatorpart.so
#15 0x422dc0f5 in Akregator::Part::openURL ()
   from /usr/lib/kde3/libakregatorpart.so
#16 0x422b8d02 in Akregator::Part::openStandardFeedList ()
   from /usr/lib/kde3/libakregatorpart.so
#17 0x422ee1b2 in Akregator::AkregatorPartIface::process ()
   from /usr/lib/kde3/libakregatorpart.so
#18 0x40994415 in DCOPClient::receive () from /usr/lib/libDCOP.so.4
#19 0x409949f9 in DCOPClient::send () from /usr/lib/libDCOP.so.4
#20 0x40994fd0 in DCOPRef::sendInternal () from /usr/lib/libDCOP.so.4
#21 0x08051540 in ?? ()
#22 0xbfffee40 in ?? ()
#23 0xbfffee94 in ?? ()
#24 0xbfffeeb4 in ?? ()
#25 0xbfffee74 in ?? ()
#26 0xbfffeeb4 in ?? ()
#27 0x08052fd9 in vtable for QGList ()
#28 0xbfffee84 in ?? ()
#29 0xbfffee48 in ?? ()
#30 0x40268ea2 in free () from /lib/tls/libc.so.6
#31 0x408e3684 in KUniqueApplication::processDelayed ()
   from /usr/lib/libkdecore.so.4
#32 0x408e4fc9 in KUniqueApplication::qt_invoke ()
   from /usr/lib/libkdecore.so.4
#33 0x40cb5b57 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#34 0x41046055 in QSignal::signal () from /usr/lib/libqt-mt.so.3
#35 0x40cd3a40 in QSignal::activate () from /usr/lib/libqt-mt.so.3
#36 0x40cdb354 in QSingleShotTimer::event () from /usr/lib/libqt-mt.so.3
#37 0x40c4b698 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#38 0x40c4b8b6 in QApplication::notify () from /usr/lib/libqt-mt.so.3
#39 0x408d1abc in KApplication::notify () from /usr/lib/libkdecore.so.4
#40 0x40bdb5e5 in QApplication::sendEvent () from /usr/lib/libqt-mt.so.3
#41 0x40c3c98c in QEventLoop::activateTimers () from /usr/lib/libqt-mt.so.3
#42 0x40bef35c in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#43 0x40c63da2 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#44 0x40c63ccb in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#45 0x40c4a225 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#46 0x08050d80 in ?? ()
#47 0xbffff664 in ?? ()
#48 0xbffff664 in ?? ()
#49 0xbffff788 in ?? ()
#50 0x08050d22 in ?? ()
#51 0x403371e0 in __malloc_initialize_hook () from /lib/tls/libc.so.6
#52 0x0000000c in ?? ()
#53 0x00000069 in ?? ()
#54 0x401c6cb8 in ?? () from /usr/lib/libstdc++.so.6
#55 0x0000000c in ?? ()
#56 0x08061830 in ?? ()
#57 0xbffff678 in ?? ()
#58 0x40fb6bd5 in QAsciiBucket::QAsciiBucket () from /usr/lib/libqt-mt.so.3
#59 0x40216ec0 in __libc_start_main () from /lib/tls/libc.so.6
#60 0x08050051 in ?? ()

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ludo.gml laposte net



------- Additional Comments From frank.osterfeld kdemail net  2006-02-13 15:37 -------
*** Bug 119476 has been marked as a duplicate of this bug. ***

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |11rana excite com



------- Additional Comments From frank.osterfeld kdemail net  2006-02-13 15:38 -------
*** Bug 120446 has been marked as a duplicate of this bug. ***

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------- Additional Comments From frank.osterfeld kdemail net  2006-02-13 15:46 -------
It seems that Akregator crashes while accessing the backend corrupt the metakit storage, which causes crashes then at startup.
A workaround is to move ~/.kde/share/apps/akregator/Archive/*mk4 somewhere else. That should make Akregator start again, but all archived articles are lost.You can then copy mk4 files back and test which one causes the crash...

It would be _very_ useful if someone experiencing this crash could zip the files in Archive/ and send them to me (frank.osterfeld at gmail.com) and also his feeds.opml. (If you want to help even more, identify the exact archive file that causes the crash).

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|NOR                         |VHI

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------- Additional Comments From frank.osterfeld kdemail net  2006-02-25 15:45 -------
SVN commit 513455 by osterfeld:

Lock archive to avoid metakit archive corruption due to multiple write access.
Usually Akregator being a KUniqueApplication avoids multiple Akregator instances accessing the archive, but there seem to
be some cases where KUniqueApp is not safe enough (right after update, multiple KDE sessions, when using --nofork option).
So we lock the archive like KMail does: if locking fails, show an error message to the user, giving him the possibility to 
either continue without archive, or to force access.
As this is a severe bug (multiple write access can corrupt archives, which can make Akregator crash at startup), I think 
making use of the message unfreeze is justified.
CCBUG: 116482
CCMAIL:kde-i18n-doc kde org
CCMAIL:akregator-devel lists sf net


 M  +133 -1    akregator_part.cpp  
 M  +2 -0      akregator_part.h  
 A             kcursorsaver.h   [License: no copyright]


--- branches/KDE/3.5/kdepim/akregator/src/akregator_part.cpp #513454:513455
 @ -56,6 +56,13  @
 #include <qwidgetlist.h>
 #include <private/qucomextra_p.h>
 
+#include <cerrno>
+#include <sys/types.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
 #include "aboutdata.h"
 #include "actionmanagerimpl.h"
 #include "akregator_part.h"
 @ -68,6 +75,7  @
 #include "frame.h"
 #include "article.h"
 #include "kernel.h"
+#include "kcursorsaver.h"
 #include "notificationmanager.h"
 #include "pageviewer.h"
 #include "plugin.h"
 @ -135,8 +143,21  @
 
     m_storage = 0;
     Backend::StorageFactory* factory = Backend::StorageFactoryRegistry::self()->getFactory(Settings::archiveBackend());
+   
     if (factory != 0)
-        m_storage = factory->createStorage(QStringList());
+    {
+        
+        if (Settings::archiveBackend() == "metakit")
+        {
+            if (tryToLock(factory->name()))
+                m_storage = factory->createStorage(QStringList());
+            else 
+                m_storage = dummyFactory->createStorage(QStringList());
+        }
+        else
+            m_storage = factory->createStorage(QStringList());
+    }
+    
 
     if (!m_storage) // Houston, we have a problem
     {
 @ -877,6 +898,117  @
     return false;
 }
 
+static QString getMyHostName()
+{
+    char hostNameC[256];
+    // null terminate this C string
+    hostNameC[255] = 0;
+    // set the string to 0 length if gethostname fails
+    if(gethostname(hostNameC, 255))
+        hostNameC[0] = 0;
+    return QString::fromLocal8Bit(hostNameC);
+}
 
+// taken from KMail
+bool Part::tryToLock(const QString& backendName)
+{
+// Check and create a lock file to prevent concurrent access to metakit archive
+    QString appName = kapp->instanceName();
+    if ( appName.isEmpty() )
+        appName = "akregator";
+
+    QString programName;
+    const KAboutData *about = kapp->aboutData();
+    if ( about )
+        programName = about->programName();
+    if ( programName.isEmpty() )
+        programName = i18n("Akregator");
+
+    QString lockLocation = locateLocal("data", "akregator/lock");
+    KSimpleConfig config(lockLocation);
+    int oldPid = config.readNumEntry("pid", -1);
+    const QString oldHostName = config.readEntry("hostname");
+    const QString oldAppName = config.readEntry( "appName", appName );
+    const QString oldProgramName = config.readEntry( "programName", programName );
+    const QString hostName = getMyHostName();
+    bool first_instance = false;
+    if ( oldPid == -1 )
+        first_instance = true;
+  // check if the lock file is stale by trying to see if
+  // the other pid is currently running.
+  // Not 100% correct but better safe than sorry
+    else if (hostName == oldHostName && oldPid != getpid()) {
+        if ( kill(oldPid, 0) == -1 )
+            first_instance = ( errno == ESRCH );
+    }
+
+    if ( !first_instance )
+    {
+        QString msg;
+        if ( oldHostName == hostName ) 
+        {
+            // this can only happen if the user is running this application on
+            // different displays on the same machine. All other cases will be
+            // taken care of by KUniqueApplication()
+            if ( oldAppName == appName )
+                msg = i18n("<qt>%1 already seems to be running on another display on "
+                        "this machine. <b>Running %2 more than once is not supported "
+                        "by the %3 backend and "
+                        "can cause the loss of archived articles and crashes at startup.</b> "
+                        "You should disable the archive for now "
+                        "unless you are sure that %2 is not already running.</qt>")
+                        .arg( programName, programName, backendName );
+              // QString::arg( st ) only replaces the first occurrence of %1
+              // with st while QString::arg( s1, s2 ) replacess all occurrences
+              // of %1 with s1 and all occurrences of %2 with s2. So don't
+              // even think about changing the above to .arg( programName ).
+            else
+                msg = i18n("<qt>%1 seems to be running on another display on this "
+                        "machine. <b>Running %1 and %2 at the same "
+                        "time is not supported by the %3 backend and can cause "
+                        "the loss of archived articles and crashes at startup.</b> "
+                        "You should disable the archive for now "
+                        "unless you are sure that %2 is not already running.</qt>")
+                        .arg( oldProgramName, programName, backendName );
+        }
+        else
+        {
+            if ( oldAppName == appName )
+                msg = i18n("<qt>%1 already seems to be running on %2. <b>Running %1 more "
+                        "than once is not supported by the %3 backend and can cause "
+                        "the loss of archived articles and crashes at startup.</b> "
+                        "You should disable the archive for now "
+                        "unless you are sure that it is "
+                        "not already running on %2.</qt>")
+                        .arg( programName, oldHostName, backendName );
+            else
+                msg = i18n("<qt>%1 seems to be running on %3. <b>Running %1 and %2 at the "
+                        "same time is not supported by the %4 backend and can cause "
+                        "the loss of archived articles and crashes at startup.</b> "
+                        "You should disable the archive for now "
+                        "unless you are sure that %1 is "
+                        "not running on %3.</qt>")
+                        .arg( oldProgramName, programName, oldHostName, backendName );
+        }
+
+        KCursorSaver idle( KBusyPtr::idle() );
+        if ( KMessageBox::No ==
+             KMessageBox::warningYesNo( 0, msg, QString::null,
+                                        i18n("Force Access"),
+                                        i18n("Disable Archive")) )
+                                        {
+                                            return false;
+                                        }
+    }
+
+    config.writeEntry("pid", getpid());
+    config.writeEntry("hostname", hostName);
+    config.writeEntry( "appName", appName );
+    config.writeEntry( "programName", programName );
+    config.sync();
+    return true;
+}
+
+
 } // namespace Akregator
 #include "akregator_part.moc"
--- branches/KDE/3.5/kdepim/akregator/src/akregator_part.h #513454:513455
 @ -195,6 +195,8  @
             /** creates an OPML file containing the initial feeds (KDE feeds) */
             static QDomDocument createDefaultFeedList();
 
+            bool tryToLock(const QString& backendName);
+                    
          private: // attributes
 
             class ApplyFiltersInterceptor;

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------- Additional Comments From coolo kde org  2006-03-03 16:58 -------
Are you still interested in a corrupted file? I have one :)

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE



------- Additional Comments From frank.osterfeld kdemail net  2006-03-09 09:12 -------


*** This bug has been marked as a duplicate of 121826 ***

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|DUPLICATE                   |



------- Additional Comments From frank.osterfeld kdemail net  2006-03-09 09:13 -------
eh, wrong direction. need coffee.

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Martin Lichtvoll de



------- Additional Comments From frank.osterfeld kdemail net  2006-03-09 09:14 -------
*** Bug 121826 has been marked as a duplicate of this bug. ***

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rafatoken yahoo com br



------- Additional Comments From frank.osterfeld kdemail net  2006-03-24 20:16 -------
*** Bug 124201 has been marked as a duplicate of this bug. ***

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |test forum titlis org



------- Additional Comments From frank.osterfeld kdemail net  2006-06-19 22:26 -------
*** Bug 129452 has been marked as a duplicate of this bug. ***

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kpdere derenet us



------- Additional Comments From frank.osterfeld kdemail net  2006-07-05 14:18 -------
*** Bug 130224 has been marked as a duplicate of this bug. ***

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------- Additional Comments From frank.osterfeld kdemail net  2006-07-06 21:34 -------
Ken writes in 130224:

"This happened after a power outage so I am not surprised something got 
corrupted. [...]"

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------- Additional Comments From bugs.kde.org vpanel cjb net  2006-07-07 12:47 -------
Hi !

I got a problem starting akregator after a machine crash. It's due to a corrupted archive file because moving my archive folder solved the startup issue. But I'm a bit puzzled : how can I identify which mk4 is causing the crash ? It looks like moving some mk4 files out of the Archive folder is making Akregator hang (not crash).

Thus a little feature request : could it be possible to display on output (when launching from the command line) which mk4 file is being read/parsed ? It would be easier to identify the corrupted one.

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------- Additional Comments From bugs.kde.org vpanel cjb net  2006-07-07 13:05 -------
According to the other bugs I've seen around, I guess this is an upstream problem with metakit not handling correctly corrupted archive files. So it should probably be reported here : http://www.equi4.com/cgi-bin/cvstrac/metakit/rptview?rn=4 but as I said, I don't know how to determine which file is corrupted. I would send it to you if I could find a way...

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |metakit plugin

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frank.osterfeld kdemail net changed:

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                 CC|                            |cristi.falcas gmail com



------- Additional Comments From frank.osterfeld kdemail net  2006-09-03 23:56 -------
*** Bug 117978 has been marked as a duplicate of this bug. ***

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frank.osterfeld kdemail net changed:

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                 CC|                            |phil brynvilla llangollen co
                   |                            |.uk



------- Additional Comments From frank.osterfeld kdemail net  2006-09-04 00:00 -------
*** Bug 128313 has been marked as a duplicate of this bug. ***

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nathanogden76 gmail com



------- Additional Comments From frank.osterfeld kdemail net  2006-11-03 01:43 -------
*** Bug 132411 has been marked as a duplicate of this bug. ***

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|akregator does not start up |metakit: akregator crashes
                   |                            |at startup

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |baee116388 hot ee



------- Additional Comments From frank.osterfeld kdemail net  2006-11-27 17:47 -------
*** Bug 137976 has been marked as a duplicate of this bug. ***

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------- Additional Comments From jlp holodeck1 com  2007-01-22 17:50 -------
I also have a crash at sturtup. This is with Akregator 3.5.5 on Gentoo Linux. Here is the backtrace:

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1244051760 (LWP 1558)]
[KCrash handler]
#6  c4_Column::PullValue (ptr_= 0xbfc4b634) at column.cpp:777
#7  0xb5967b73 in c4_FormatV::SetupAllSubviews (this=0x85bdbb8)
    at format.cpp:1026
#8  0xb59681ee in c4_FormatV::Get (this=0x85bdbb8, index_=0, 
    length_= 0xbfc4b69c) at format.cpp:1096
#9  0xb596b790 in c4_Handler::GetBytes (this=0x85bdbb8, index_=0, 
    buf_= 0xbfc4b710, copySmall_=false) at handler.cpp:58
#10 0xb597b237 in c4_Sequence::Get (this=0x85be370, index_=0, propId_=35, 
    buf_= 0xbfc4b710) at viewx.cpp:356
#11 0xb596fb4a in c4_Reference::GetData (this=0xbfc4b74c, buf_= 0xbfc4b710)
    at ./../include/mk4.inl:421
#12 0xb597aab7 in c4_ViewRef::operator c4_View (this=0xbfc4b74c)
    at viewx.cpp:643
#13 0xb5974e15 in c4_Storage::Description (this=0x855eea0, 
    name_=0xb4f0046a "articles") at store.cpp:360
#14 0xb597504d in c4_Storage::GetAs (this=0x855eea0, 
    description_=0xb5993924 "articles[guid:S,title:S,hash:I,guidIsHash:I,guidIsPermaLink:I,description:S,link:S,comments:I,commentsLink:S,status:I,pubDate:I,tags[tag:S],hasEnclosure:I,enclosureUrl:S,enclosureType:S,enclosureLengt"...)
    at store.cpp:279
#15 0xb5955279 in FeedStorageMK4Impl (this=0x85bdf70, url= 0x85bde00, 
    main=0x8091458) at feedstoragemk4impl.cpp:156
#16 0xb5958e7a in Akregator::Backend::StorageMK4Impl::archiveFor (
    this=0x8091458, url= 0x85bde00) at storagemk4impl.cpp:278
#17 0xb7f7b2e7 in Akregator::Feed::loadArticles (this=0x85bdd98)
    at feed.cpp:221
#18 0xb7f7c14a in Akregator::Feed::fromOPML (e= 0xbfc4bb84) at feed.cpp:165
#19 0xb7f878ba in Akregator::FeedList::parseChildNodes (this=0x82436d8, 
    node= 0xbfc4bbf4, parent=0x85bc180) at feedlist.cpp:117
#20 0xb7f8784d in Akregator::FeedList::parseChildNodes (this=0x82436d8, 
    node= 0xbfc4bd0c, parent=0x82435c0) at feedlist.cpp:135
#21 0xb7f87d74 in Akregator::FeedList::readFromXML (this=0x82436d8, 
    doc= 0xbfc4bebc) at feedlist.cpp:175
#22 0xb5b625fc in Akregator::View::loadFeeds (this=0x8093cf8, 
    doc= 0xbfc4bebc, parent=0x0) at akregator_view.cpp:541
#23 0xb5b59a22 in Akregator::Part::openFile (this=0x812db68)
    at akregator_part.cpp:443
#24 0xb5b56b94 in Akregator::Part::openURL (this=0x812db68, url= 0xbfc4bf84)
    at akregator_part.cpp:332
#25 0xb5b59fd2 in Akregator::Part::openStandardFeedList (this=0x812db68)
    at akregator_part.cpp:337
#26 0xb5b6c156 in Akregator::AkregatorPartIface::process (this=0x812dc14, 
    fun= 0xbfc4c224, data= 0xbfc4c25c, replyType= 0xbfc4c1b4, 
    replyData= 0xbfc4c1ac) at akregator_partiface_skel.cpp:39
#27 0xb6dd1fa8 in DCOPClient::receive (this=0x8063c38, objId= 0xbfc4c2a4, 
    fun= 0xbfc4c224, data= 0xbfc4c25c, replyType= 0xbfc4c1b4, 
    replyData= 0xbfc4c1ac) at dcopclient.cpp:1640
#28 0xb6dd27ee in DCOPClient::send (this=0x8063c38, remApp= 0xbfc4c29c, 
    remObjId= 0xbfc4c2a4, remFun= 0xbfc4c224, data= 0xbfc4c25c)
    at dcopclient.cpp:1060
#29 0xb6dcba03 in DCOPRef::sendInternal (this=0xbfc4c29c, fun= 0xbfc4c2c8, 
    args= 0xbfc4c264, data= 0xbfc4c25c) at dcopref.cpp:102
#30 0x080519a7 in DCOPRef::send (this=0xbfc4c29c, fun= 0xbfc4c2c8)
    at /usr/kde/3.5/include/dcopref.h:1118
#31 0x080513be in Akregator::Application::newInstance (this=0xbfc4ca80)
    at main.cpp:65
#32 0xb6f1c553 in KUniqueApplication::processDelayed (this=0xbfc4ca80)
    at kuniqueapplication.cpp:444
#33 0xb6f1c6d8 in KUniqueApplication::qt_invoke (this=0xbfc4ca80, _id=18, 
    _o=0xbfc4c458) at kuniqueapplication.moc:86
#34 0xb66fb1f3 in QObject::activate_signal (this=0x80e18f8, clist=0x80dc7f8, 
    o=0xbfc4c458) at kernel/qobject.cpp:2356
#35 0xb6af82e7 in QSignal::signal (this=0x80e18f8, t0= 0x80e1920)
    at .moc/debug-shared-mt/moc_qsignal.cpp:100
#36 0xb671f47b in QSignal::activate (this=0x80e18f8) at kernel/qsignal.cpp:212
#37 0xb672966c in QSingleShotTimer::event (this=0x80e18d0)
    at kernel/qtimer.cpp:286
#38 0xb6686923 in QApplication::internalNotify (this=0xbfc4ca80, 
    receiver=0x80e18d0, e=0xbfc4c7f8) at kernel/qapplication.cpp:2635
#39 0xb668889b in QApplication::notify (this=0xbfc4ca80, receiver=0x80e18d0, 
    e=0xbfc4c7f8) at kernel/qapplication.cpp:2358
#40 0xb6e7d1b2 in KApplication::notify (this=0xbfc4ca80, receiver=0x80e18d0, 
    event=0xbfc4c7f8) at kapplication.cpp:550
#41 0xb6610b1f in QApplication::sendEvent (receiver=0x80e18d0, 
    event=0xbfc4c7f8) at ../include/qapplication.h:496
#42 0xb6677738 in QEventLoop::activateTimers (this=0x80863c0)
    at kernel/qeventloop_unix.cpp:556
#43 0xb66270bb in QEventLoop::processEvents (this=0x80863c0, flags=4)
    at kernel/qeventloop_x11.cpp:389
#44 0xb66a493d in QEventLoop::enterLoop (this=0x80863c0)
    at kernel/qeventloop.cpp:198
#45 0xb66a475e in QEventLoop::exec (this=0x80863c0)
    at kernel/qeventloop.cpp:145
#46 0xb66885e7 in QApplication::exec (this=0xbfc4ca80)
    at kernel/qapplication.cpp:2758
#47 0x080510a8 in main (argc=) at main.cpp:110

Should I send the compressed folder of Akregator?

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jlp holodeck1 com changed:

           What    |Removed                     |Added
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                 CC|                            |jlp holodeck1 com

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------- Additional Comments From jlp holodeck1 com  2007-01-27 09:35 -------
I just upgraded to 3.5.6 an the crash remains.

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frank.osterfeld kdemail net changed:

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                 CC|                            |ibc2 euskalnet net



------- Additional Comments From frank.osterfeld kdemail net  2007-02-25 10:08 -------
*** Bug 141665 has been marked as a duplicate of this bug. ***

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------- Additional Comments From rasasi78 gmail com  2007-05-27 22:44 -------
Seems this is the right one. It happens to me as well on kde 3.5.7. This is my backtrace:
Using host libthread_db library "/lib/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1243031856 (LWP 9057)]
[KCrash handler]
#6  0xb7cbba1c in memcpy () from /lib/i686/cmov/libc.so.6
#7  0xb5707153 in c4_String::Init (this=0xb562cc6c, p=0x80aa39b, n=135651325)
    at /tmp/buildd/kdepim-3.5.7/./akregator/src/mk4storage/metakit/src/string.cpp:212
#8  0xb571bb03 in c4_HandlerSeq::Prepare (this=0x80a9bb8, ptr_=0xbf8acc60, 
    selfDesc_=true)
    at /tmp/buildd/kdepim-3.5.7/./akregator/src/mk4storage/metakit/src/../include/mk4str.inl:209
#9  0xb571fea5 in c4_Persist::LoadAll (this=0x80aa2e8)
    at /tmp/buildd/kdepim-3.5.7/./akregator/src/mk4storage/metakit/src/persist.cpp:1043
#10 0xb572010d in c4_Storage (this=0x80abf60, 
    fname_=0x80aa138 "/home/rasasi/.kde/share/apps/akregator/Archive/archiveindex.mk4", mode_=1)
    at /tmp/buildd/kdepim-3.5.7/./akregator/src/mk4storage/metakit/src/store.cpp:217
#11 0xb5702971 in Akregator::Backend::StorageMK4Impl::open (this=0x80a9da0, 
    autoCommit=true)
    at /tmp/buildd/kdepim-3.5.7/./akregator/src/mk4storage/storagemk4impl.cpp:129
#12 0xb5a17aab in Part (this=0x8116528, parentWidget=0x8098500, 
    parent=0x8098500, name=0x8052f3d "akregator_part")
    at /tmp/buildd/kdepim-3.5.7/./akregator/src/akregator_part.cpp:181
#13 0xb5a25808 in KParts::GenericFactory<Akregator::Part>::createPartObject (
    this=0x81102a8, parentWidget=0x8098500, 
    widgetName=0x8052f3d "akregator_part", parent=0x8098500, 
    name=0x8052f3d "akregator_part", 
    className=0x8052f28 "KParts::ReadOnlyPart", args= 0xbf8acf00)
    at /usr/include/kde/kgenericfactory.tcc:146
#14 0xb7f6177f in KParts::Factory::createPart (this=0x81102a8, 
    parentWidget=0x8098500, widgetName=0x8052f3d "akregator_part", 
    parent=0x8098500, name=0x8052f3d "akregator_part", 
    classname=0x8052f28 "KParts::ReadOnlyPart", args= 0xbf8acf00)
    at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kparts/factory.cpp:44
#15 0xb7f617e1 in KParts::Factory::createObject (this=0x81102a8, 
    parent=0x8098500, name=0x8052f3d "akregator_part", 
    classname=0x8052f28 "KParts::ReadOnlyPart", args= 0xbf8acf00)
    at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kparts/factory.cpp:80
#16 0xb76a3931 in KLibFactory::create (this=0x81102a8, parent=0x8098500, 
    name=0x8052f3d "akregator_part", 
    classname=0x8052f28 "KParts::ReadOnlyPart", args= 0xbf8acf00)
    at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/klibloader.cpp:83
#17 0x08051dc7 in Akregator::MainWindow::loadPart (this=0x8098500)
    at /tmp/buildd/kdepim-3.5.7/./akregator/src/mainwindow.cpp:107
#18 0x080524e9 in Akregator::Application::newInstance (this=0xbf8ad690)
    at /tmp/buildd/kdepim-3.5.7/./akregator/src/main.cpp:61
#19 0xb7769b86 in KUniqueApplication::newInstanceNoFork (this=0xbf8ad690)
    at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/kuniqueapplication.cpp:378
#20 0xb776ff28 in KUniqueApplication::qt_invoke (this=0xbf8ad690, _id=20, 
    _o=0xbf8ad098) at ./kuniqueapplication.moc:87
#21 0xb70a9e1b in QObject::activate_signal (this=0x809dff8, clist=0x8095650, 
    o=0xbf8ad098) at kernel/qobject.cpp:2356
#22 0xb7432f87 in QSignal::signal (this=0x809dff8, t0= 0x809e020)
    at .moc/debug-shared-mt/moc_qsignal.cpp:100
#23 0xb70c999e in QSignal::activate (this=0x809dff8) at kernel/qsignal.cpp:212
#24 0xb70d1370 in QSingleShotTimer::event (this=0x809dfd0)
    at kernel/qtimer.cpp:286
#25 0xb7041cf2 in QApplication::internalNotify (this=0xbf8ad690, 
    receiver=0x809dfd0, e=0xbf8ad408) at kernel/qapplication.cpp:2635
#26 0xb7043b0f in QApplication::notify (this=0xbf8ad690, receiver=0x809dfd0, 
    e=0xbf8ad408) at kernel/qapplication.cpp:2358
#27 0xb775b142 in KApplication::notify (this=0xbf8ad690, receiver=0x809dfd0, 
    event=0xbf8ad408)
    at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/kapplication.cpp:550
#28 0xb6fd54c1 in QApplication::sendEvent (receiver=0x809dfd0, 
    event=0xbf8ad408) at ../include/qapplication.h:520
#29 0xb70346c3 in QEventLoop::activateTimers (this=0x806e5e0)
    at kernel/qeventloop_unix.cpp:556
#30 0xb6fe980f in QEventLoop::processEvents (this=0x806e5e0, flags=4)
    at kernel/qeventloop_x11.cpp:389
#31 0xb705c245 in QEventLoop::enterLoop (this=0x806e5e0)
    at kernel/qeventloop.cpp:198
#32 0xb705c066 in QEventLoop::exec (this=0x806e5e0)
    at kernel/qeventloop.cpp:145
#33 0xb704388b in QApplication::exec (this=0xbf8ad690)
    at kernel/qapplication.cpp:2758
#34 0x0805174e in main (argc=)
    at /tmp/buildd/kdepim-3.5.7/./akregator/src/main.cpp:112
#35 0xb7c61ebc in __libc_start_main () from /lib/i686/cmov/libc.so.6
#36 0x08050a21 in _start ()

And also I'll attach a tarball for the ~/.kde/share/apps/akregator dir which makes possible to reproduce the problem. A little later I'll try to isolate the blaming corrupted file.

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------- Additional Comments From rasasi78 gmail com  2007-05-27 23:59 -------
The file I got is 6MB, unfortunately I have no web space available. If you are interested on it, please let me know and also how should I send it to you.

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------- Additional Comments From jackbunce gmail com  2007-05-29 03:27 -------
I am having a crash on Startup also.  It started after an update to KDE 3.5.7 release 10.1 which was followed by a power hit which caused the computer to restart. I am not certain which was the cause of the problem. Here is the trace:

System configuration startup check disabled.

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1235679536 (LWP 13322)]
[KCrash handler]
#9  0xb6f444cc in memcpy () from /lib/libc.so.6
#10 0xb59e22c3 in c4_String::Init ()
   from /opt/kde3/lib/kde3/libakregator_mk4storage_plugin.so
#11 0xb59d90d3 in c4_HandlerSeq::Prepare ()
   from /opt/kde3/lib/kde3/libakregator_mk4storage_plugin.so
#12 0xb59dcaa5 in c4_Persist::LoadAll ()
   from /opt/kde3/lib/kde3/libakregator_mk4storage_plugin.so
#13 0xb59e170d in c4_Storage::c4_Storage ()
   from /opt/kde3/lib/kde3/libakregator_mk4storage_plugin.so
#14 0xb59c5b06 in Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl ()
   from /opt/kde3/lib/kde3/libakregator_mk4storage_plugin.so
#15 0xb59c7f21 in Akregator::Backend::StorageMK4Impl::archiveFor ()
   from /opt/kde3/lib/kde3/libakregator_mk4storage_plugin.so
#16 0xb7f422c8 in Akregator::Feed::loadArticles ()
   from /opt/kde3/lib/libakregatorprivate.so
#17 0xb7f43030 in Akregator::Feed::fromOPML ()
   from /opt/kde3/lib/libakregatorprivate.so
#18 0xb7f4d805 in Akregator::FeedList::parseChildNodes ()
   from /opt/kde3/lib/libakregatorprivate.so
#19 0xb7f4d90c in Akregator::FeedList::parseChildNodes ()
   from /opt/kde3/lib/libakregatorprivate.so
#20 0xb7f4dd7e in Akregator::FeedList::readFromXML ()
   from /opt/kde3/lib/libakregatorprivate.so
#21 0xb6274cdc in Akregator::View::loadFeeds ()
   from /opt/kde3/lib/kde3/libakregatorpart.so
#22 0xb62703ab in Akregator::Part::openFile ()
   from /opt/kde3/lib/kde3/libakregatorpart.so
#23 0xb626df4c in Akregator::Part::openURL ()
   from /opt/kde3/lib/kde3/libakregatorpart.so
#24 0xb626a91b in Akregator::Part::openStandardFeedList ()
   from /opt/kde3/lib/kde3/libakregatorpart.so
#25 0xb6269770 in Akregator::AkregatorPartIface::process ()
   from /opt/kde3/lib/kde3/libakregatorpart.so
#26 0xb7812e77 in DCOPClient::receive () from /opt/kde3/lib/libDCOP.so.4
#27 0xb7813602 in DCOPClient::send () from /opt/kde3/lib/libDCOP.so.4
#28 0xb7813c3f in DCOPRef::sendInternal () from /opt/kde3/lib/libDCOP.so.4
#29 0x08050796 in Akregator::Application::newInstance ()
#30 0xb798f26d in KUniqueApplication::processDelayed ()
   from /opt/kde3/lib/libkdecore.so.4
#31 0xb79d4eb8 in KUniqueApplication::qt_invoke ()
   from /opt/kde3/lib/libkdecore.so.4
#32 0xb738bf1d in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#33 0xb76c70ae in QSignal::signal () from /usr/lib/qt3/lib/libqt-mt.so.3
#34 0xb73a7ff7 in QSignal::activate () from /usr/lib/qt3/lib/libqt-mt.so.3
#35 0xb73af383 in QSingleShotTimer::event ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#36 0xb732c9c7 in QApplication::internalNotify ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#37 0xb732d791 in QApplication::notify () from /usr/lib/qt3/lib/libqt-mt.so.3
#38 0xb79e4202 in KApplication::notify () from /opt/kde3/lib/libkdecore.so.4
#39 0xb7321bd3 in QEventLoop::activateTimers ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#40 0xb72dbc40 in QEventLoop::processEvents ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#41 0xb73437f0 in QEventLoop::enterLoop () from /usr/lib/qt3/lib/libqt-mt.so.3
#42 0xb7343686 in QEventLoop::exec () from /usr/lib/qt3/lib/libqt-mt.so.3
#43 0xb732c57f in QApplication::exec () from /usr/lib/qt3/lib/libqt-mt.so.3
#44 0x0805025e in main ()

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------- Additional Comments From rosenauer gmx at  2007-06-21 16:12 -------
same here on Kubuntu Feisty KDE 3.5.7.
Akregator does not start but eats 100% CPU until killed.
Removing my feeds (the OPML-file) "help" in that starting Akregator produces a normal crash.
Only when removing the Archive-folder in .kde/share/apps/akregator, Akregator starts up normally again.
Mine is only 450K so I'll attach it here.
This has happened before already, so I know the procedure, but I don't know the cause. I am using Akregator embedded in Kontact, maybe the Akregator-Archive got corrupted when Kontact crashed.

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------- Additional Comments From rosenauer gmx at  2007-06-21 16:14 -------
Created an attachment (id=20916)
 --> (http://bugs.kde.org/attachment.cgi?id=20916&action=view)
problematic feed-archive

when uncompressing this archive to your akregator-configdir, akregator will
crash at startup.

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------- Additional Comments From Chain rpgfiction net  2007-06-22 15:56 -------
You can check your files with the utilities on their page.
http://www.equi4.com/metakit/stats.html

I had a problem with my harddrive and a file got corrupted. Unfortunately it cannot repair, but the one defective file removed, everything works again :)

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frank.osterfeld kdemail net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |diniz.bb gmail com



------- Additional Comments From frank.osterfeld kdemail net  2008-01-13 14:38 -------
*** Bug 155260 has been marked as a duplicate of this bug. ***

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------- Additional Comments From pnemec suse cz  2008-03-18 13:51 -------
reproducet with openSUSE 10.3. KDE 3.5.7 novell bugzilla #371701. I am contacting Frank with PM.

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------- Additional Comments From thomas koch ro  2008-04-15 09:27 -------
I had a similiar problem. For me akregator just freezed. I did a 
lsof -p AKREGATORPID
to see the files opened by akregator. The last file opened was a .mk4 file inside ~/.kde/share/apps/akregator/Archive

You can get the AKREGATORPID with 
ps aux|grep akregator

After renaming the last file listed by lsof, akregator started again, but the respective feed did not have any archived entries anymore. Now I'd like to know, how to resque a corrupted .mk4 file...

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------- Additional Comments From chris.fritz gmail com  2008-06-01 00:11 -------
Created an attachment (id=25029)
 --> (http://bugs.kde.org/attachment.cgi?id=25029&action=view)
Working and broken copies of an .mk4 file, and associated feeds.opml file.

This zip file contains a data folder with the feeds.opml and an Archive folder
with two .mk4 files.

One .mk4 file is my original from using a KDE 3.5 release of Akregator (program
version unknown, I'm afraid).  This one has .BROKEN appended to the filename.

The other .mk4 file is one freshly created by Akregator Version 1.2.50, on KDE
4.00.72, everything installed on Fedora 9 via from RPM.

I use Okteta (or KHexedit on KDE 3.X) to view the files and modify them.

(Note: At roughly location 0x23A0 in the .BROKEN file, the text is corrupted. 
This has no negative impact on loading the file.)

The .BROKEN file ends at roughly location 0x24020.  At this point, the .WORKING
continues with more data.

If I delete the contents of .BROKEN from 0x3F00 to the end of the file, and
then paste onto the end the contents of .WORKING from 0x23F00 to the end of
that file, the .BROKEN file will load successfully in Akregator (assuming I've
renamed it to remove the ".BROKEN" from the filename).

I don't know how to put together an environment for editing/building source
code, so I can't look into this problem in any more depth.

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------- Additional Comments From chris.fritz gmail com  2008-06-01 00:13 -------
Correction to my comment:

"If I delete the contents of .BROKEN from 0x3F00 to the end of the file"

...should read:
If I delete the contents of .BROKEN from 0x23F00 to the end of the file

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kropx77 gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jim.hitch btinternet com



------- Additional Comments From kropx77 gmail com  2008-07-24 12:30 -------
*** Bug 150543 has been marked as a duplicate of this bug. ***

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kropx77 gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |adityatp yahoo com



------- Additional Comments From kropx77 gmail com  2008-07-24 12:34 -------
*** Bug 152542 has been marked as a duplicate of this bug. ***

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kropx77 gmail com changed:

           What    |Removed                     |Added
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                 CC|                            |jean.marc.leger gmail com



------- Additional Comments From kropx77 gmail com  2008-07-24 12:35 -------
*** Bug 147673 has been marked as a duplicate of this bug. ***

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http://bugs.kde.org/show_bug.cgi?id=116482         




------- Additional Comments From goetzchrist yahoo es  2008-07-29 20:10 -------
I have the same crash using KDE 4.1 from Kubuntu Members PPA in Hardy:

The application Akregator (akregator) crashed and caused the signal 11 (SIGSEGV).

Backtrace:

Application: Akregator (akregator), signal SIGSEGV
(no debugging symbols found)
(no debugging symbols found)

... 37 times more ...

(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0xb5424720 (LWP 6276)]
(no debugging symbols found)
(no debugging symbols found)

... 75 times more ...

(no debugging symbols found)
(no debugging symbols found)
[KCrash handler]
#6  0xb3d48b25 in ?? () from /usr/lib/kde4/lib/kde4/akregatorpart.so
#7  0xb3d48be1 in ?? () from /usr/lib/kde4/lib/kde4/akregatorpart.so
#8  0xb3d44454 in Akregator::FeedList::findByURL ()
   from /usr/lib/kde4/lib/kde4/akregatorpart.so
#9  0xb3d4570c in Akregator::FeedList::findArticle ()
   from /usr/lib/kde4/lib/kde4/akregatorpart.so
#10 0xb3d2c66a in ?? () from /usr/lib/kde4/lib/kde4/akregatorpart.so
#11 0xb3d2c853 in ?? () from /usr/lib/kde4/lib/kde4/akregatorpart.so
#12 0xb77b84f9 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#13 0xb77b8bc2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#14 0xb77bf037 in ?? () from /usr/lib/libQtCore.so.4
#15 0xb77bf15c in ?? () from /usr/lib/libQtCore.so.4
#16 0xb77b3c9a in QObject::event () from /usr/lib/libQtCore.so.4
#17 0xb6e02c0c in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#18 0xb6e07799 in QApplication::notify () from /usr/lib/libQtGui.so.4
#19 0xb7c32ef3 in KApplication::notify () from /usr/lib/kde4/lib/libkdeui.so.5
#20 0xb77a36a9 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#21 0xb77d11a1 in ?? () from /usr/lib/libQtCore.so.4
#22 0xb77cea40 in ?? () from /usr/lib/libQtCore.so.4
#23 0xb5bbfbf8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0xb5bc2e5e in ?? () from /usr/lib/libglib-2.0.so.0
#25 0xb5bc33ac in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0xb77cef98 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#27 0xb6e96195 in ?? () from /usr/lib/libQtGui.so.4
#28 0xb77a292d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#29 0xb77a2abd in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#30 0xb77a4d3d in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#31 0xb6e02567 in QApplication::exec () from /usr/lib/libQtGui.so.4
#32 0x0804edab in _start ()
#0  0xb7efe410 in __kernel_vsyscall ()

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------- Additional Comments From goetzchrist yahoo es  2008-07-29 20:25 -------
Also, when removing the folder ~/.kde4/share/apps/akregator/Archive Akregator starts again.

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http://bugs.kde.org/show_bug.cgi?id=116482         
cgiboudeaux gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |quasiparticella yahoo it



------- Additional Comments From cgiboudeaux gmail com  2008-08-13 23:05 -------
*** Bug 169066 has been marked as a duplicate of this bug. ***

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http://bugs.kde.org/show_bug.cgi?id=116482         




------- Additional Comments From goetzchrist yahoo es  2008-08-14 01:51 -------
I realized that when I set a limit to the Archive size, at the next startup Akregator crashes if the archive limit is exceeded.

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http://bugs.kde.org/show_bug.cgi?id=116482         




------- Additional Comments From datradan yahoo it  2008-08-16 20:07 -------
I have the same problem with KDE 4.1.0 from Kubuntu Members PPA in Hardy, like G. Christ in comment #40.

Here my backtrace (without "(no debugging symbols found)":

Application: Akregator (akregator), signal SIGSEGV
[Thread debugging using libthread_db enabled]
[New Thread 0xb545c720 (LWP 6958)]
[KCrash handler]
#6  0xb3d65b29 in ?? () from /usr/lib/kde4/lib/kde4/akregatorpart.so
#7  0xb3d65be1 in ?? () from /usr/lib/kde4/lib/kde4/akregatorpart.so
#8  0xb3d61454 in Akregator::FeedList::findByURL ()
   from /usr/lib/kde4/lib/kde4/akregatorpart.so
#9  0xb3d6270c in Akregator::FeedList::findArticle ()
   from /usr/lib/kde4/lib/kde4/akregatorpart.so
#10 0xb3d4966a in ?? () from /usr/lib/kde4/lib/kde4/akregatorpart.so
#11 0xb3d49853 in ?? () from /usr/lib/kde4/lib/kde4/akregatorpart.so
#12 0xb77f24f9 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#13 0xb77f2bc2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#14 0xb77f9037 in ?? () from /usr/lib/libQtCore.so.4
#15 0xb77f915c in ?? () from /usr/lib/libQtCore.so.4
#16 0xb77edc9a in QObject::event () from /usr/lib/libQtCore.so.4
#17 0xb6e3dc0c in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#18 0xb6e427a9 in QApplication::notify () from /usr/lib/libQtGui.so.4
#19 0xb7c74f53 in KApplication::notify () from /usr/lib/kde4/lib/libkdeui.so.5
#20 0xb77dd6a9 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#21 0xb780b1a1 in ?? () from /usr/lib/libQtCore.so.4
#22 0xb7808a40 in ?? () from /usr/lib/libQtCore.so.4
#23 0xb5bf9dd6 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#24 0xb5bfd193 in ?? () from /usr/lib/libglib-2.0.so.0
#25 0xb5bfd74e in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#26 0xb7808f98 in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#27 0xb6ed11b5 in ?? () from /usr/lib/libQtGui.so.4
#28 0xb77dc92d in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#29 0xb77dcabd in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#30 0xb77ded3d in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#31 0xb6e3d567 in QApplication::exec () from /usr/lib/libQtGui.so.4
#32 0x0804edab in _start ()
#0  0xb7f3f410 in __kernel_vsyscall ()

and here terminal messages when i run akregator:

othmane kubuntu:~/Desktop$ akregator                                                                                                           
akregator(6958) Akregator::PluginManager::query: Plugin trader constraint: "[X-KDE-akregator-framework-version] == 2 and [X-KDE-akregator-plugintype] == 'storage' and [X-KDE-akregator-rank] > 0"                                                                                            
akregator(6958) Akregator::PluginManager::createFromService: Trying to load: "akregator_mk4storage_plugin"                                     
akregator(6958) Akregator::PluginManager::dump: PluginManager Service Info:                                                                    
---------------------------                                                                                                                    
name                          :  "Metakit storage backend"                                                                                     
library                       :  "akregator_mk4storage_plugin"                                                                                 
desktopEntryPath              :  "akregator_mk4storage_plugin.desktop"                                                                         
X-KDE-akregator-plugintype       :  "storage"                                                                                                  
X-KDE-akregator-name             :  "metakit"                                                                                                  
X-KDE-akregator-authors          :  ("Frank Osterfeld")                                                                                        
X-KDE-akregator-rank             :  "255"                                                                                                      
X-KDE-akregator-version          :  "1"                                                                                                        
X-KDE-akregator-framework-version:  "2"                                                                                                        
Object::connect: No such signal Akregator::SubscriptionListView::signalContextMenu(K3ListView*,Akregator::TreeNode*,QPoint)                    
Object::connect:  (sender name:   'feedtree')                                                                                                  
Object::connect:  (receiver name: 'akregator_view')                                                                                            
Object::connect: No such signal Akregator::SubscriptionListView::signalDropped(KUrl::List&,Akregator::TreeNode*,Akregator::Folder*)            
Object::connect:  (sender name:   'feedtree')                                                                                                  
Object::connect:  (receiver name: 'akregator_view')                                                                                            
Object::connect: No such slot Akregator::ArticleListView::slotPaletteOrFontChanged()                                                           
akregator(6958) Akregator::SubscriptionListView::loadHeaderSettings: 0   210                                                                   
akregator(6958) Akregator::SubscriptionListView::loadHeaderSettings: 1   56                                                                    
akregator(6958) Akregator::SubscriptionListView::loadHeaderSettings: 2   58                                                                    
Object::disconnect: Unexpected null parameter                                                                                                  
akregator(6958) Akregator::Part::initFonts: Part::initFonts(): set UnderlineLinks to true                                                      
akregator(6958) Akregator::FeedList::readFromOpml: loading OPML feed "opml"                                                                    
akregator(6958) Akregator::FeedList::readFromOpml: measuring startup time: START                                                               
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://feeds.feedburner.com/7yearwinter"                          
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://feeds.feedburner.com/Blu"                                  
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://feeds.feedburner.com/oneOpenSource"                        
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://feeds.feedburner.com/pollycokenet"                         
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://www.kde.org/dotkdeorg.rdf"                                 
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://www.kubuntu.org/news/feed"                                 
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://pinheiro-kde.blogspot.com/feeds/posts/default"             
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://aseigo.blogspot.com/feeds/posts/default"                   
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://www.repubblica.it/rss/homepage/rss2.0.xml"                 
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://www.corriere.it/rss/homepage.xml"                          
akregator(6958) Akregator::Backend::FeedStorageMK4Impl::FeedStorageMK4Impl: "http://www.lastampa.it/redazione/rss_home.xml"                    
akregator(6958) Akregator::FeedList::readFromOpml: measuring startup time: STOP, 556 ms                                                        
akregator(6958) Akregator::FeedList::readFromOpml: Number of articles loaded: 1019                                                             
akregator(6958) Akregator::SubscriptionListView::loadHeaderSettings: 0   210                                                                   
akregator(6958) Akregator::SubscriptionListView::loadHeaderSettings: 1   56                                                                    
akregator(6958) Akregator::SubscriptionListView::loadHeaderSettings: 2   58                                                                    
KCrash: crashing... crashRecursionCounter = 2                                                                                                  
KCrash: Application Name = akregator path = <unknown> pid = 6958                                                                               
sock_file=/home/othmane/.kde4/socket-kubuntu/kdeinit4__0                                                                                       


I think the same thing of G.Christ in comment #43.

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http://bugs.kde.org/show_bug.cgi?id=116482         




------- Additional Comments From datradan yahoo it  2008-08-17 11:50 -------
I've found why akreagator crash,
in ~/.kde4/share/apps/akregator/data/feeds.oplm , when I increase maxArticleNumber over my number of feeds saved, and I set archiveMode="globalDefault", akregator will not crash.

I hope this is useful to resolve this bug :-)