Memory leak when PDF objects are dragged around.

[tehf0x]

Binary package hint: evince

I have a PDF that seems to be only scanned text (can't select the text). When I try and select it anyways (look, I'm tired :-D), it seems to drag something, then evince hangs for a bit. Memory usage by evince ramps up (quickly gets up to 1gb, in less than 30 seconds), and I need to kill evince.

I can provide the specific PDF where this is happening in case there is trouble reproducing.

i'm using Karmic.

Thanks!

Gabe

[jtniehof (jtniehof)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately, we can't fix it without more information.

Please run the following command which will attach necessary information:
apport-collect 481459

You may need to install the python-launchpadlib package from the universe repository with 'sudo apt-get install python-launchpadlib'. Additionally, when prompted to give apport-collect permissions for Launchpad you will need to give it at least the ability to "Change Non-Private" data as it will be adding information to your bug report.

Please also do attach the specific PDF here ("Add an attachment" below the "Add comment" window); that would be very helpful.
Also take a look at this similar bug: https://bugs.launchpad.net/evince/+bug/379403
It is supposed to be fixed in 9.10, but sounds very similar. It would be useful to know if the test cases on that bug cause the same problems as your test case.

[tehf0x (gabe-squirrelsoup)]

Architecture: amd64
DistroRelease: Ubuntu 9.10
Package: evince 2.28.1-0ubuntu1.1
PackageArchitecture: amd64
ProcCmdline: root=UUID=170f8d9d-f313-4ed8-b968-ed56b7eec683 ro quiet splash
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
Uname: Linux 2.6.31-14-generic x86_64
UserGroups: adm admin audio cdrom dialout lpadmin plugdev sambashare

[tehf0x (gabe-squirrelsoup)]

This is the pdf where when I inadvertently try to select text (which isn't possible), I get a significant memory leak from evince.

[tehf0x (gabe-squirrelsoup)]

I recall the other bug, and noticed that it seems to have gotten fixed in Karmic (thanks btw, that bug got me a lot). This doesn't actually open a new window, and I'm not even sure the image actually has the time to get dragged before compiz greys the window out. One thing is sure is that it consistently triggers a memory leak if I left-click on the document and then move the mouse.

Not sure what you meant by the 'test cases' for the other bug.

Thanks for looking into this!

[jtniehof (jtniehof)]

Wow! I can confirm that, with that PDF, a quick drag will make evince nonresponsive, peg the CPU, and start ramping up the memory usage. evince 2.28.1-0ubuntu1.1 from karmic-updates. I have visual effects disabled, so this is not simply a compiz issue.

This is also present on sid, version 2.28.1-1. The upstream git repository has a commit (f011461f, 6 Nov) labelled "fix memory leak," but I compiled from HEAD and the PDF tehf0x linked still causes the memory leak. I will try to file upstream.

[tehf0x (gabe-squirrelsoup)]

Great, I'll keep an eye upstream as well.

[Daniil Bubnov (demoth-cadaver)]

Heh, i opened your attachment and started playing with it, i was stupid enough to make evince eat 2.5 gigs of memory, and then system became frozen for a while.
Linux hphdx 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

[penalvch (penalvch)]

This is not reproducible in Trusty.