[kde] [Bug 333571] New: Nepomuk baloo migration can't seem to access the database

[J. TAKUMI Burton]

https://bugs.kde.org/show_bug.cgi?id=333571

            Bug ID: 333571
           Summary: Nepomuk baloo migration can't seem to access the
                    database
    Classification: Unclassified
           Product: kde
           Version: unspecified
          Platform: unspecified
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: sougonnatakumi at yahoo.co.jp

Application: nepomukbaloomigrator (1.0)
KDE Platform Version: 4.13.0
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Ubuntu 14.04 LTS

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

"Nepomuk baloo migration" autostarted in the system tray immediately after I'd
upgraded to trusty, but crashed. It seems like it simply can't start up at all,
because when I tell it to restart it always just crashes again.

When I tried to run nepomukbaloomigrator in the terminal, with or without sudo,
it told me 'nepomukbaloomigrator(5953): "database is locked Unable to fetch
row"' a lot. I tried this several times but then I realised that even when I
used Ctrl+C to kill the process it was still running in the system monitor, so
that probably didn't help.

So, this is what the terminal said when I killed all the nepomukbaloomigrator
processes, then ran "sudo nepomukbaloomigrator" again.

takumi at EIEN-WASHIGOKORO:~$ sudo nepomukbaloomigrator
QDBusConnection: session D-Bus connection created before QCoreApplication.
Application may misbehave.
QDBusConnection: session D-Bus connection created before QCoreApplication.
Application may misbehave.
takumi at EIEN-WASHIGOKORO:~$ nepomukbaloomigrator(5953): Bananana Error 
nepomukbaloomigrator(5953):  
nepomukbaloomigrator(5953): Bananana Error 
nepomukbaloomigrator(5953): Could not obtain lock for Xapian Database. This is
bad 
nepomukbaloomigrator(5953):  
nepomukbaloomigrator(5953): "database is locked Unable to fetch row" 
nepomukbaloomigrator(5953): Could not obtain lock for Xapian Database. This is
bad 
nepomukbaloomigrator(5953): Serious Error:   
nepomukbaloomigrator(5953): Error opening table
`/home/takumi/.local/share/baloo/file/record.':
Couldn't open /home/takumi/.local/share/baloo/file/record.baseA: Too many open
files
Couldn't open /home/takumi/.local/share/baloo/file/record.baseB: Too many open
files
  DatabaseOpeningError: Error opening table
`/home/takumi/.local/share/baloo/file/record.':
Couldn't open /home/takumi/.local/share/baloo/file/record.baseA: Too many open
files
Couldn't open /home/takumi/.local/share/baloo/file/record.baseB: Too many open
files

nepomukbaloomigrator(5953): Could not obtain lock for Xapian Database. This is
bad 
nepomukbaloomigrator(5953):  
nepomukbaloomigrator(5953): "database is locked Unable to fetch row" 
nepomukbaloomigrator(5953): Could not obtain lock for Xapian Database. This is
bad 
nepomukbaloomigrator(5953): Serious Error:   
nepomukbaloomigrator(5953): Error opening table
`/home/takumi/.local/share/baloo/file/record.':
Couldn't open /home/takumi/.local/share/baloo/file/record.baseA: Too many open
files
Couldn't open /home/takumi/.local/share/baloo/file/record.baseB: Too many open
files
  DatabaseOpeningError: Error opening table
`/home/takumi/.local/share/baloo/file/record.':
Couldn't open /home/takumi/.local/share/baloo/file/record.baseA: Too many open
files
Couldn't open /home/takumi/.local/share/baloo/file/record.baseB: Too many open
files

nepomukbaloomigrator(5953): Could not obtain lock for Xapian Database. This is
bad 
nepomukbaloomigrator(5953):  
nepomukbaloomigrator(5953): Could not obtain lock for Xapian Database. This is
bad 
nepomukbaloomigrator(5953): Serious Error:   
nepomukbaloomigrator(5953): Error opening table
`/home/takumi/.local/share/baloo/file/record.':
Couldn't open /home/takumi/.local/share/baloo/file/record.baseA: Too many open
files
Couldn't open /home/takumi/.local/share/baloo/file/record.baseB: Too many open
files
  DatabaseOpeningError: Error opening table
`/home/takumi/.local/share/baloo/file/record.':
Couldn't open /home/takumi/.local/share/baloo/file/record.baseA: Too many open
files
Couldn't open /home/takumi/.local/share/baloo/file/record.baseB: Too many open
files

KCrash: Application 'nepomukbaloomigrator' crashing...
KCrash: Attempting to start /usr/lib/kde4/libexec/drkonqi from kdeinit
sock_file=/home/takumi/.kde/socket-EIEN-WASHIGOKORO/kdeinit4__0
Unable to start Dr. Konqi
Not forwarding the crash to Apport.

I don't really know what this means, but if it helps, I had Firefox, Skype, and
the bug report window open when running that command. I'm fairly sure Firefox
writes to a couple of files when it runs but I'm not sure whether that's the
kind of files this is talking about or not.

The crash can be reproduced every time.

-- Backtrace:
Application: NepomukBalooMigrator (nepomukbaloomigrator), signal: Segmentation
fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd04e9e87c0 (LWP 2144))]

Thread 2 (Thread 0x7fd03a9c7700 (LWP 2360)):
#0  0x00007fd0485f262a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd0485f29b9 in g_mutex_unlock () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd0485b0680 in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd0485b0f03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd0485b10ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fd04c2727be in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007fd04c2440af in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007fd04c2443a5 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007fd04c140c5f in QThread::exec() () from
/usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fd04c225823 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007fd04c14332f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007fd048a90182 in start_thread (arg=0x7fd03a9c7700) at
pthread_create.c:312
#12 0x00007fd04baf330d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fd04e9e87c0 (LWP 2144)):
[KCrash Handler]
#5  0x00007fd049360e78 in Xapian::Database::get_document(unsigned int) const ()
from /usr/lib/libxapian.so.22
#6  0x00007fd048ef44c4 in Baloo::XapianDatabase::document(unsigned int) () from
/usr/lib/libbalooxapian.so.4
#7  0x00007fd04dcbd66d in Baloo::FileModifyJob::doStart() () from
/usr/lib/libbaloofiles.so.4
#8  0x00007fd04c25dc1e in QObject::event(QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fd04cec1e2c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#10 0x00007fd04cec84a0 in QApplication::notify(QObject*, QEvent*) () from
/usr/lib/x86_64-linux-gnu/libQtGui.so.4
#11 0x00007fd04e3e1baa in KApplication::notify(QObject*, QEvent*) () from
/usr/lib/libkdeui.so.5
#12 0x00007fd04c2454dd in QCoreApplication::notifyInternal(QObject*, QEvent*)
() from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#13 0x00007fd04c248b3d in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#14 0x00007fd04c272f83 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#15 0x00007fd0485b0e04 in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007fd0485b1048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007fd0485b10ec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fd04c2727a1 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#19 0x00007fd04cf63bb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#20 0x00007fd04c2440af in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQtCore.so.4
#21 0x00007fd04c2443a5 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/x86_64-linux-gnu/libQtCore.so.4
#22 0x00007fd04c953803 in KJob::exec() () from /usr/lib/libkdecore.so.5
#23 0x0000000000404a18 in _start ()

Reported using DrKonqi

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