GLib-CRITICAL: Source ID was not found when attempting to remove it (Ubuntu 14.04, client 2.3.0)

[s-ntech]

Expected behaviour

After fresh install (Ubuntu 14.04, client 2.3.0 using Qt 4.8.6), client should be able to sync folders and the client should not crash.

Actual behaviour

After downloading (syncing) a folder from remote for a short time (~10s) the client crashes. In the command line:

(owncloud:9634): GLib-CRITICAL **: Source ID 251 was not found when attempting to remove it
Aborted (core dumped)

Steps to reproduce

1. sudo apt-get install owncloud-client
2. Connect to remote folder and try to sync remote folder

Server configuration

Operating system: Ubuntu 14.04 (3.13.0-110-generic)

Web server: Apache2

Database: MySql

PHP version:

ownCloud version: 9.1.4

Storage backend (external storage):

Client configuration

Client version: 2.3.0

Operating system: Ubuntu 14.04

OS language: En

Qt version used by client package (Linux only, see also Settings dialog): 4.6.8

Client package (From ownCloud or distro) (Linux only):

Installation path of client:

Logs

Please use Gist (https://gist.github.com/) or a similar code paster for longer
logs.

Template for output < 10 lines

1. Client logfile: Output of owncloud --logwindow or owncloud --logfile log.txt (I'm showing the last 10 or so lines here, but can upload full log if required as well)
   03-06 10:43:54:952 0x1d07070 void OCC::AbstractNetworkJob::slotFinished() 2 "Connection closed" QVariant(int, 200) 03-06 10:43:54:952 0x1d07070 void OCC::PropagateDownloadFile::slotGetFinished() QUrl( "https://******.de/remote.php/webdav/instr/2011-Linear_Algebra_I/Aufgabeblätter/R Vektorräume.pdf" ) FINISHED WITH STATUS 2 "Connection closed" 0 179340 189666 0 "" "189666" 03-06 10:43:54:952 0x1d07070 void OCC::SyncEngine::slotItemCompleted(const SyncFileItemPtr&) "2011-Linear_Algebra_I/Aufgabeblätter/R Vektorräume.pdf" INSTRUCTION_NEW 1 "Connection closed" 03-06 10:43:54:971 0x1d07070 void OCC::AbstractNetworkJob::slotFinished() 5 "Operation canceled" QVariant(, ) 03-06 10:43:54:971 0x1d07070 void OCC::PropagateDownloadFile::slotGetFinished() QUrl( "https://******.de/remote.php/webdav/instr/2011-Linear_Algebra_I/Aufgabeblätter/la1-1.pdf" ) FINISHED WITH STATUS 5 "Operation canceled" 0 0 124166 0 "" "" 03-06 10:43:54:971 0x1d07070 "DELETE FROM downloadinfo WHERE path=?1" "2011-Linear_Algebra_I/Aufgabeblätter/la1-1.pdf" 03-06 10:43:54:971 0x1d07070 void OCC::SyncEngine::slotItemCompleted(const SyncFileItemPtr&) "2011-Linear_Algebra_I/Aufgabeblätter/la1-1.pdf" INSTRUCTION_NEW 1 "Operation canceled" 03-06 10:43:54:972 0x1d07070 void OCC::AbstractNetworkJob::slotFinished() 5 "Operation canceled" QVariant(, ) 03-06 10:43:54:972 0x1d07070 void OCC::PropagateDownloadFile::slotGetFinished() QUrl( "https://******.de/remote.php/webdav/instr/2011-Linear_Algebra_I/Aufgabeblätter/la1-10.pdf" ) FINISHED WITH STATUS 5 "Operation canceled" 0 0 203363 0 "" "" 03-06 10:43:54:972 0x1d07070 "DELETE FROM downloadinfo WHERE path=?1" "2011-Linear_Algebra_I/Aufgabeblätter/la1-10.pdf" 03-06 10:43:54:972 0x1d07070 void OCC::SyncEngine::slotItemCompleted(const SyncFileItemPtr&) "2011-Linear_Algebra_I/Aufgabeblätter/la1-10.pdf" INSTRUCTION_NEW 1 "Operation canceled" 03-06 10:43:54:977 0x1d07070 * Ignoring file "/home/fh/instr/2011-Linear_Algebra_I/Aufgabeblätter/.la1-1.pdf.~1b3fdec" 03-06 10:43:54:978 0x1d07070 * Ignoring file "/home/fh/instr/2011-Linear_Algebra_I/Aufgabeblätter/.la1-10.pdf.~513e23d7" 03-06 10:43:54:978 0x1d07070 * Ignoring file "/home/fh/instr/2011-Linear_Algebra_I/Aufgabeblätter/.R Vektorräume.pdf.~373f3585" 03-06 10:43:54:978 0x1d07070 ASSERT: "i >= 0" in file /usr/src/packages/BUILD/src/libsync/owncloudpropagator.cpp, line 665

2. Web server error log: No webserver errors

3. Server logfile: ownCloud log (data/owncloud.log): No errors

Comment

My first bug report. I would really like to help getting to the bottom of this issue. Please let me know if and how I can supply further information.

[ogoffart]

The actual crash is

ASSERT: "i >= 0" in file /usr/src/packages/BUILD/src/libsync/owncloudpropagator.cpp, line 665

This seems to happen for "Connection closed" errors.

This looks like the crash we tries to fix during the rc phase but were not able to reproduce.

[ogoffart]

Pull request: #5579

[ogoffart]

Normally fixed for 2.3.1

[s-ntech]

Thanks. I'm assuming that this will only fix the crash and not the "Connection Closed" error that I have been having on Ubuntu 14.04 since at least client 2.1.0? Is there any chance this could be looked into more? I do not see the Connection Closed error on any other machines - just on this Ubuntu 14.04. No fresh client install was able to solve the issue. The only thing that ever helped is going back to clients < 2.1.0 and limit the download bandwidth.

[ogoffart]

Try upgrading to Qt 5.6.

[s-ntech]

Thanks for the reply. I'm not able to compile the client with Qt 5.6. I think I've come pretty far but now another lot of unmet dependencies have cropped up:

/usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5.1.1: undefined reference to QWindowSystemInterface::registerTouchDevice(QTouchDevice*)' /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5.2.1: undefined reference to QOpenGLTextureGlyphCache::QOpenGLTextureGlyphCache(QFontEngineGlyphCache::Type, QTransform const&)'
/usr/lib/x86_64-linux-gnu/libQt5PrintSupport.so.5.2.1: undefined reference to QPdfEnginePrivate::pageRect() const' /usr/lib/x86_64-linux-gnu/libQt5OpenGL.so.5.2.1: undefined reference to QFontEngine::glyphCache(void const*, QFontEngineGlyphCache::Type, QTransform const&) const'
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5.2.1: undefined reference to QShortcutMap::tryShortcutEvent(QObject*, QKeyEvent*)' /usr/lib/x86_64-linux-gnu/libQt5PrintSupport.so.5.2.1: undefined reference to QPdfEnginePrivate::paperRect() const'
collect2: error: ld returned 1 exit status

I don't think I'll be able to compile it in the end. Through extensive reading, I'm now aware of #2558. Sticking it out until 2.3.1 hits might be a good idea then? Will I get Qt5 on Ubuntu 14.04 as well with 2.3.1?