[Qgis-user] Segmentation fault... Solved

[Micha Silver]

On 03/06/2010 05:37 PM, Micha Silver wrote:
> David J. Bakeman wrote:
>> Micha Silver wrote:
>>> On 03/04/2010 03:43 AM, Luigi Castro Cardeles wrote:I'm also still 
>>> stuck with QGIS segfaulting. I find:
>>> * It happens Only in Gnome (xfce and KDE work fine on the same 
>>> machine, with the same binary)
>>> * When running as super user the segfault disappears.
>>> * I tried Luigi's suggestion to change the default Qt style in 
>>> qtconfig-qt4, but I still get the same segfault...
>>> * It started after an update to some qt packages on Feb 24.
>> I can confirm this.  I had made the qtconfig change way back when 
>> another qt update caused all qt apps to crash when using gnome.  Now 
>> it crashes anytime I'm using gnome which is my preferred WM.  I did 
>> finally get it to work by running a vnc session in xfce and then 
>> starting qgis as root in that vnc.  Running as root in gnome crashes 
>> for me.  I'm going to try the latest svn soon I'm using a personally 
>> build 1.4 qgis rpms now.
> Thanks for the additional info. Please report back when you compile 
> the svn version (Didn't help me :-(  )
>
>>>
>>> Any ideas where to report this problem to Gnome/Qt devs?
>>>
> I opened a ticket on Redhat's bugzilla system [1], and immediately got 
> a reply that the bug is a duplicate of a similar Gnome bug [2] from 
> nearly a year ago.
> While the results seem similar, I doubt it's the same bug as all 
> library versions have bumped up since then.
> But I'll try the patch suggested [3] to gdal (!) to see if it helps.
>
> [1] https://bugzilla.redhat.com/show_bug.cgi?id=570768
> [2] https://bugzilla.redhat.com/show_bug.cgi?id=498111
> [3] https://bugzilla.redhat.com/attachment.cgi?id=341828&action=edit
>
Well, surprise, surprise. This segfault problem does indeed seem to be 
an old GDAL bug that has somehow resurfaced!
I made the small change suggested in the above bugzilla report 
(id=498111). It's a minor change to the configure.in script.  I wiped 
the whole source directory of gdal, applied the suggested change, then 
./configure; make; sudo make install.
Then I rebuilt qgis and presto it worked!

Why this problem cropped up now and not earlier? only <enter your 
favorite deity> knows...

Regards,
Micha

-- 
Micha Silver
http://www.surfaces.co.il/
Arava Development Co.  +972-52-3665918

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