Sorry - this is my fault. terragear/master has some code for allowing
the tools to add vertex attributes. The vertex attribute code in the
simgear btg writer is not complete.
Please move terragear to scenery/ws2.0 branch and build that - that
should be stable.
Pete
On 06/26/2014 05:22 PM, Kirill Popov wrote:
Hello, everyone!
Today I've built a fresh simgear/terragear suite from sources
(simgear's repo at "next", terragear's one at "master"). Building is
done with download_and_compile.sh script (modified for Debug build
mode).
When I start genapts850 like "./genapts850 --input=tiny_ULSG.dat
--work=. --threads=1 --airport=ULSG --verbose" I'm getting
Segmentation fault and partial results written into directory. Source
file tiny_ULSG.dat is attached. Compilation and running done in
VirtualBox under Ubuntu Trusty x64.
Here are some details from gdb:
============ Segfault message =================
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffe81fa700 (LWP 5177)]
0x00000000005bd200 in write_indices<unsigned short>
(fp=0x7fffe05f3c70, indexMask=27 '\033', vaMask=4294967295,
vertices=..., normals=..., colors=..., texCoords=..., vas=...)
at /root/fgfs/stable/simgear/simgear/io/sg_binobj.cxx:341
341 write_indice(fp, static_cast<T>(vas[1][i]));
========== end of Segfault message ===============
Backtrace is also attached.
If I set a breakpoint at simgear/simgear/io/sg_binobj.cxx:341 I get
the following:
============= Variables at breakpoint ==================
Breakpoint 1, write_indices<unsigned short> (fp=0x7fffe05edab0,
indexMask=27 '\033', vaMask=4294967295, vertices=...,
normals=..., colors=..., texCoords=..., vas=...) at
/root/fgfs/stable/simgear/simgear/io/sg_binobj.cxx:341
341 write_indice(fp, static_cast<T>(vas[1][i]));
(gdb) print i
$1 = 0
(gdb) print vas[1].size()
$4 = 0
(gdb) print vaMask
$1 = 4294967295
================== End of variables at breakpoint ===============
So, the code part actually failing is:
340 if (vaMask & SG_VA_INTEGER_1) {
341 write_indice(fp, static_cast<T>(vas[1][i]));
342 }
At the time crash happens, i == 0 and vaMask == 4294967295 ("1" in all
bits). But if we look at vas[1] size, it will be zero. And as in the
next line we're trying to call write_indice() with non-existing
vas[1][i], we're getting segfault.
this is how I see the situation, correct me if I'm wrong.
Unfortunately, I did not manage to understand the code and fix the
issue myself, so I'm asking for help from SG/TG developers.
Thank you in advance!
--
Best regards,
Kirill Popov.
----
Other ways to contact me:
Gtalk: [email protected]
Cell phone: +79052062619
LinkedIn: http://ru.linkedin.com/in/kspopov
------------------------------------------------------------------------------
Open source business process management suite built on Java and Eclipse
Turn processes into business applications with Bonita BPM Community Edition
Quickly connect people, data, and systems into organized workflows
Winner of BOSSIE, CODIE, OW2 and Gartner awards
http://p.sf.net/sfu/Bonitasoft
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------------------------------------------------------------------------------
Open source business process management suite built on Java and Eclipse
Turn processes into business applications with Bonita BPM Community Edition
Quickly connect people, data, and systems into organized workflows
Winner of BOSSIE, CODIE, OW2 and Gartner awards
http://p.sf.net/sfu/Bonitasoft
_______________________________________________
Flightgear-scenery mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/flightgear-scenery
