Bug 350975 – app-emulation/virtualbox-4.0.0 crashes when selecting virtual machine settings

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description David Flogeras 2011-01-07 15:23:06 UTC]

On two (mostly) stable amd64 systems I am experiencing a segfault when selecting a virtual machine's settings.  This can be either machines that existed before I upgraded, or new ones.  The machines seem to run fine, I just cannot access their settings in the GUI.

Another Gentoo user who uses ~arch does not have this problem.

I found this upstream bug indicating other people with other distros have the same problem, and it is possibly related to using Qt 4.6.

http://www.virtualbox.org/ticket/7875

I also had found an archlinux bug (that led me to the above):
https://bugs.archlinux.org/task/22225

Reproducible: Always

[Comment 1 Lars Wendler (Polynomial-C) (RETIRED) 2011-01-07 15:31:57 UTC]

Thank you for the report.

Well, the bug in archlinux was reported against qt-gui-4.7.1 so I doubt it's related to qt-4.6. 

Nevertheless this is an upstream issue. I gonna track the upstream bug and in case they come up with a fix before virtualbox-4.0.2 comes out I gonna add it to our 4.0.0 package.

[Comment 2 Patrizio Bassi 2011-01-07 17:23:10 UTC]

i have qt-gui-4.7.1 and i can confirm the bug.

[Comment 3 Lars Wendler (Polynomial-C) (RETIRED) 2011-01-07 17:35:51 UTC]

I wonder why I cannot reproduce this bug. Could you guys maybe add some more information?
I need to know wether you are really using app-emulation/virtualbox or rather app-emulation/virtualbox-bin.

So please add either the output of 

  emerge --info virtualbox

or in case you're using virtualbox-bin post the outut of

  emerge --info virtualbox-bin

Thanks.

[Comment 4 David Flogeras 2011-01-08 21:34:56 UTC]

Created attachment 259330 [details]
emerge --info virtualbox output

Here is my emerge info, using virtualbox, not virtualbox-bin (which I think comes with its own bundled Qt)

[Comment 5 Lars Wendler (Polynomial-C) (RETIRED) 2011-01-08 21:38:01 UTC]

I also need the combination of USE flags the package was installed with. That's the reason I asked for the output of the command

  emerge --info virtualbox

[Comment 6 David Flogeras 2011-01-09 12:59:40 UTC]

Oh sorry, I had uninstalled it by then, so that was a pretend --info.

This should help
These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N    ] sys-devel/bin86-0.16.17  149 kB
[ebuild  N    ] app-emulation/virtualbox-additions-4.0.0  36,238 kB
[ebuild  N    ] dev-util/kbuild-0.1.5-r1  21,430 kB
[ebuild  N    ] sys-power/iasl-20090123  USE="-test" 906 kB
[ebuild  N    ] sys-devel/dev86-0.16.17-r6  687 kB
[ebuild  N    ] app-emulation/virtualbox-modules-4.0.0  826 kB
[ebuild  N    ] media-libs/freeglut-2.6.0  USE="-debug -mpx" 1,098 kB
[ebuild  N    ] app-emulation/virtualbox-4.0.0  USE="additions alsa opengl python qt4 -doc -extensions -headless -java -pulseaudio -sdk -vboxwebsrv -vnc" 68,633 kB

[Comment 7 David Flogeras 2011-01-12 00:44:48 UTC]

They apparently have a fix in SVN, but it's not the public facing one (they must keep an internal one too).  I've requested the patch, and will submit a fix here if they are nice enough to give it.  Otherwise it will be next minor release

[Comment 8 David Flogeras 2011-01-18 13:29:33 UTC]

Created attachment 260165 [details, diff]
Fixes crash in settings dialog when using Oxygen theme in KDE4

patch to fix the upstream bug 7875, I got this with svn di -r 35475:35476 on the vbox public SVN

[Comment 9 David Flogeras 2011-01-18 13:30:03 UTC]

Created attachment 260167 [details]
New ebuild incorporating above patch

[Comment 10 David Flogeras 2011-01-18 13:30:29 UTC]

Created attachment 260169 [details, diff]
This can be used to patch the 4.0.0-r1 ebuild if you want it

[Comment 11 Lars Wendler (Polynomial-C) (RETIRED) 2011-01-18 17:23:15 UTC]

Thank you for your effort David. :)
Although it seems like virtualbox-4.0.2 is on its way (see http://download.virtualbox.org/virtualbox/4.0.2/) I gonna add this patch into virtualbox-4.0.0-r2. Just gimme a while for some testing...

[Comment 12 Lars Wendler (Polynomial-C) (RETIRED) 2011-01-18 19:43:56 UTC]

virtualbox-4.0.2 is now in the tree so this bug should be fixed.

[Comment 13 David Flogeras 2011-01-18 20:27:04 UTC]

Hah, what are the odds... I've wasted my life :).  Thanks for listening anyway.