From: Ken Sewell (sewell++at++dramail.com)
Date: 05/08/2003 07:49:46
I'm running a program that places the camera position inside of a vehicle
model. When the near clipping is set to 10 (large enough to exclude the
vehicle) the simulation runs fine. When I start to step it down it will
get to the point where it draws the edges of the vehicle (nose, tail,
wingtips...) but if I lower the near clipping plane any more I get a
segfault(i.e. near clip of 5.1 runs, but 5.0 segfaults). According to gdb
the segfault occurs in pfCullProgram::runCullProgramGeoSet. I'm not sure
what would cause this, so I don't know what to look for. This is the info
from gdb:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 1024 (LWP 1136)]
0x40507206 in pfCullProgram::runCullProgramGeoSet(pfGeoSet*, _pfCullPgInfo*, int) () from /usr/lib/libpf.so.3
(gdb) where
#0 0x40507206 in pfCullProgram::runCullProgramGeoSet(pfGeoSet*, _pfCullPgInfo*, int) () from /usr/lib/libpf.so.3
#1 0x40520036 in _pfCuller::pf_getGSetStateCullPgm(pfGeoSet*, pfBillboard*, int, pfString*) () from /usr/lib/libpf.so.3
#2 0x4051f416 in _pfCuller::addCullPgm(pfGeoSet*) () from /usr/lib/libpf.so.3
#3 0x404b53d5 in pfGeode::nb_cullProgram(int, int, _pfCullPgInfo*, _pfCuller*) () from /usr/lib/libpf.so.3
#4 0x404f4f9e in pfSwitch::nb_cullProgram(int, int, _pfCullPgInfo*, _pfCuller*) () from /usr/lib/libpf.so.3
#5 0x404b8e22 in pfGroup::nb_cullProgram(int, int, _pfCullPgInfo*, _pfCuller*) () from /usr/lib/libpf.so.3
#6 0x404984ee in pfDoubleSCS::nb_cullProgram(int, int, _pfCullPgInfo*, _pfCuller*) () from /usr/lib/libpf.so.3
#7 0x404984ee in pfDoubleSCS::nb_cullProgram(int, int, _pfCullPgInfo*, _pfCuller*) () from /usr/lib/libpf.so.3
#8 0x404984ee in pfDoubleSCS::nb_cullProgram(int, int, _pfCullPgInfo*, _pfCuller*) () from /usr/lib/libpf.so.3
#9 0x404ee1de in pfSCS::nb_cullProgram(int, int, _pfCullPgInfo*, _pfCuller*) () from /usr/lib/libpf.so.3
#10 0x404ee1de in pfSCS::nb_cullProgram(int, int, _pfCullPgInfo*, _pfCuller*) () from /usr/lib/libpf.so.3
#11 0x404f0a4e in pfScene::nb_cullProgram(int, int, _pfCullPgInfo*, _pfCuller*)() from /usr/lib/libpf.so.3
#12 0x4051ea96 in _pfCuller::nb_cull() () from /usr/lib/libpf.so.3
#13 0x4053ec70 in beginDraw(int) () from /usr/lib/libpf.so.3
#14 0x4053909c in pfDraw () from /usr/lib/libpf.so.3
#15 0x08059eb9 in drawFunc(pfChannel*, void*) (chan=0x43390eb0, data=0x0) at mitl_otw.cc:443
#16 0x404797e9 in pfChannel::pf_callDrawFunc() () from /usr/lib/libpf.so.3
#17 0x40538f95 in doDraw(pfChannel*, pfPipe*, int*) () from /usr/lib/libpf.so.3
#18 0x4053daa6 in appCullDraw(int) () from /usr/lib/libpf.so.3
#19 0x40536f3d in pfFrame () from /usr/lib/libpf.so.3
#20 0x0805a37e in main (argc=1, argv=0xbffff414) at mitl_otw.cc:633
#21 0x4109b4a2 in __libc_start_main () from /lib/libc.so.6
I'm running kernel 2.4.20 with Performer 3.0.1
Any ideas? Thanks.
Ken Sewell Defense Research Associates
Project Engineer 3915 Germany Lane, Suite 102
937-431-1644 Beavercreek, Ohio 45431-1608
sewell++at++dramail.com
This archive was generated by hypermail 2b29 : Thu May 08 2003 - 07:51:27 PDT