Bug 195462

Summary:	Dolphin eats memory when trying to preview a large .mp4 file
Product:	[Applications] dolphin	Reporter:	bertil.back
Component:	general	Assignee:	Peter Penz <peter.penz19>
Status:	RESOLVED DOWNSTREAM
Severity:	normal	CC:	celist165, gavinmchaffie, grasyop, hephooey_dev, jon, loonyphoenix, moz, mtadeunet, nille_kungen, razielmine, sagiyosef
Priority:	NOR
Version First Reported In:	16.12.2
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi

Description bertil.back 2009-06-06 15:12:18 UTC

Version:            (using KDE 4.2.4)
OS:                Linux
Installed from:    Unlisted Binary Package

When one tries to click on a large .mp4 video file >400Mbyte. Dolphin starts eating up all RAM memory + Swap space. After this the computer is really slow. Killing Dolphin frees up the memory and one can continue to work. 

How to reproduce:
Click on a >400 Mbyte .mp4 file to make Dolphin to start and preview the file.

Expected Behaviour:
All RAM and finally all Swap space going to be allocated by Dolphin. Thus making the Computer really slow. 

Test file:
http://www.podtrac.com/pts/redirect.mp4/bitcast-a.bitgravity.com/revision3/web/hak5/0516/hak5--0516--fourtytwo--hd.h264.mp4

Comment 1 Peter Penz 2009-06-06 15:30:44 UTC

Thanks for the report, this has been fixed in Dolphin for KDE 4.3.

Comment 2 bertil.back 2009-06-06 15:33:33 UTC

ok, 
Thanks

Comment 3 Grasyop 2009-06-07 09:00:33 UTC

I confirm the bug in Dolphin (except for the swap: I don't remember seeing it eat up the swap), and also in Konqueror (KDE 4.2.2).

Is it or will it also be fixed in Konqueror (KDE 4.3)?

Comment 4 Peter Penz 2009-06-09 16:22:25 UTC

@Grasyop: In Konqueror the issue should not occur, as it does not have an Information Panel. Do you have tooltips enabled?

Comment 5 Grasyop 2009-06-09 16:55:57 UTC

Peter Penz,

Sorry, the bug appears in Konqueror when you right-click the file and ask for its properties.

Comment 6 Peter Penz 2009-06-10 12:46:56 UTC

@Grasyop: The root cause is in this case the strigi analyzer for MP4s, which is used for the properties dialog. I cannot reproduce the issue with the properties dialog in KDE 4.3 and a recent strigi version (tested with Dolphin and Konqueror with huge MP4 files). If the issue still occurs with the properties dialog when KDE 4.3 gets released, please reopen a new report as this is out of scope of Dolphin and must be reassigned to strigi (or maybe kdelibs). Thanks!

Comment 7 Dario Andres 2009-08-19 22:22:39 UTC

*** Bug 197953 has been marked as a duplicate of this bug. ***

Comment 8 cor 2009-08-19 23:29:27 UTC

I can confirm this is still a bug with KDE 4.3.0 (Dolphin v1.3). 

Apparently I don't have enough packages installed to provide useful information (!), but I did grab this..

Application: Dolphin (dolphin), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f450a8d611b in memcpy () from /lib/libc.so.6
#6  0x00007f450b45239d in QIODevice::read () from /usr/lib/libQtCore.so.4
#7  0x00007f450ed0d0a4 in ?? () from /usr/lib/libkio.so.5
#8  0x00007f450ed0faba in ?? () from /usr/lib/libkio.so.5
#9  0x00007f450ed0fbb5 in ?? () from /usr/lib/libkio.so.5
#10 0x00007f44fc99fdb0 in Mp4ThroughAnalyzer::connectInputStream () from /usr/lib/strigi/strigita_mp4.so
#11 0x00007f450a4030eb in ?? () from /usr/lib/libstreamanalyzer.so.0
#12 0x00007f450ed0d967 in ?? () from /usr/lib/libkio.so.5
#13 0x00007f450ed0ef02 in KFileMetaInfo::KFileMetaInfo () from /usr/lib/libkio.so.5
#14 0x00007f450ecf7d49 in KFileItem::metaInfo () from /usr/lib/libkio.so.5
#15 0x00007f450ecfaf2d in KFileItem::getToolTipText () from /usr/lib/libkio.so.5
#16 0x00007f450e27d93d in ?? () from /usr/lib/libdolphinprivate.so.4
#17 0x00007f450e27db88 in ?? () from /usr/lib/libdolphinprivate.so.4
#18 0x00007f450b4cbea2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#19 0x00007f450b4c6263 in QObject::event () from /usr/lib/libQtCore.so.4
#20 0x00007f450b94bf4d in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#21 0x00007f450b95418a in QApplication::notify () from /usr/lib/libQtGui.so.4
#22 0x00007f450ced371b in KApplication::notify () from /usr/lib/libkdeui.so.5
#23 0x00007f450b4b66ac in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#24 0x00007f450b4e3516 in ?? () from /usr/lib/libQtCore.so.4
#25 0x00007f450b4dfb2d in ?? () from /usr/lib/libQtCore.so.4
#26 0x00007f4506b3520a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0x00007f4506b388e0 in ?? () from /usr/lib/libglib-2.0.so.0
#28 0x00007f4506b38a7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0x00007f450b4dfa8f in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#30 0x00007f450b9e4bdf in ?? () from /usr/lib/libQtGui.so.4
#31 0x00007f450b4b4f42 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#32 0x00007f450b4b5314 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#33 0x00007f450b4b75e4 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#34 0x00000000004396ed in _start ()

Sadly, the "merging" of this bug did not merge posts from the other bug, where further information was posted.

Comment 9 cor 2009-08-20 10:55:24 UTC

I can also confirm that when tooltips are disabled, there is no issue. 
And no tooltips!

Comment 10 Peter Penz 2009-08-20 12:42:21 UTC

@cor: Yes, this also indicates that it is the Strigi issue mentioned above. I've reported the issues at:
http://sourceforge.net/tracker/?func=detail&aid=2830904&group_id=171000&atid=856302
http://sourceforge.net/tracker/?func=detail&aid=2830902&group_id=171000&atid=856302

For KDE 4.4 Dolphin won't use Strigi anymore in the tooltips (-> issue solved like in the Information Panel), but for sure this does not help for KDE 4.3.x :-(

Comment 11 Ismael Barros 2009-08-30 03:37:10 UTC

*** Bug 205189 has been marked as a duplicate of this bug. ***

Comment 12 Peter Penz 2009-09-10 21:45:27 UTC

*** Bug 198078 has been marked as a duplicate of this bug. ***

Comment 13 Dario Andres 2010-01-30 22:31:36 UTC

*** Bug 221307 has been marked as a duplicate of this bug. ***

Comment 14 Dario Andres 2010-01-30 22:32:42 UTC

*** Bug 224907 has been marked as a duplicate of this bug. ***

Comment 15 Jonathan Thomas 2010-07-21 15:54:11 UTC

*** Bug 245275 has been marked as a duplicate of this bug. ***

Comment 16 Jonathan Thomas 2010-07-21 15:55:05 UTC

*** Bug 231197 has been marked as a duplicate of this bug. ***

Comment 17 Jonathan Thomas 2010-07-21 15:57:14 UTC

*** Bug 243464 has been marked as a duplicate of this bug. ***

Comment 18 celist165 2010-08-08 21:21:01 UTC

Created attachment 49927 [details]
New crash information added by DrKonqi

dolphin (1.5) on KDE Platform 4.4.92 (KDE 4.4.92 (KDE 4.5 RC2)) using Qt 4.7.0

- What I was doing when the application crashed:
Happens mostly while moving or browsing files.

-- Backtrace (Reduced):
#6  memcpy () at ../sysdeps/x86_64/memcpy.S:161
#7  0x00007f76bcc4cec0 in QIODevicePrivateLinearBuffer::read (this=<value optimized out>, data=0x2fceeb0 "\220\070V\002", maxSize=1024) at /usr/include/bits/string3.h:52
#8  QIODevice::read (this=<value optimized out>, data=0x2fceeb0 "\220\070V\002", maxSize=1024) at io/qiodevice.cpp:836
#9  0x00007f76bebb5de4 in QIODeviceInputStream::fillBuffer (this=0x7f7697705880, start=0x2fceab0 "", space=1023) at ../../kio/kio/kfilemetainfo.cpp:68
#10 0x00007f76bebb8895 in Strigi::BufferedStream<char>::writeToBuffer (this=0x7f7697705880, ntoread=1, maxread=1024) at /usr/include/strigi/bufferedstream.h:116