[Brlcad-tracker] [ brlcad-Bugs-1469502 ] FreeBSD6/amd64 rt segfault when optimization enabled

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Bugs item #1469502, was opened at 2006-04-12 17:13
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Category: Raytrace
Group: crash or data loss
Status: Open
Resolution: None
Priority: 5
Submitted By: Erik Greenwald (erikgreenwald)
Assigned to: Nobody/Anonymous (nobody)
Summary: FreeBSD6/amd64 rt segfault when optimization enabled

Initial Comment:
When build with --enable-optimized, rt segfaults on some geometry 
files.

can be exercised by doing something along the lines of:
$ /usr/local/bin/rt /usr/local/brlcad/share/brlcad/7.8.0/db/havoc.g 
havoc
(which crashes maybe 1/6-1/4 up? hard to tell, opterons are fast) 

magic bt says

#0  0x0000000800832320 in get_solidbitv () from /usr/local/brlcad/
lib/librt.so.19
#1  0x000000080083ac44 in rt_shootray () from /usr/local/brlcad/lib/
librt.so.19
#2  0x00000008010a5ba2 in rr_render () from /usr/local/brlcad/lib/
liboptical.so.19
#3  0x00000008010b9a89 in phong_render () from /usr/local/brlcad/
lib/liboptical.so.19
#4  0x00000008010c9237 in viewshade () from /usr/local/brlcad/lib/
liboptical.so.19
#5  0x000000000040b7bd in ?? ()
#6  0x000000080083bda7 in rt_shootray () from /usr/local/brlcad/lib/
librt.so.19
#7  0x00000008010a5ba2 in rr_render () from /usr/local/brlcad/lib/
liboptical.so.19
#8  0x00000008010b9a89 in phong_render () from /usr/local/brlcad/
lib/liboptical.so.19
#9  0x00000008010c9237 in viewshade () from /usr/local/brlcad/lib/
liboptical.so.19
#10 0x000000000040b7bd in ?? ()
#11 0x000000080083bda7 in rt_shootray () from /usr/local/brlcad/
lib/librt.so.19
#12 0x00000008010a5ba2 in rr_render () from /usr/local/brlcad/lib/
liboptical.so.19
#13 0x00000008010b9a89 in phong_render () from /usr/local/brlcad/
lib/liboptical.so.19
#14 0x00000008010c9237 in viewshade () from /usr/local/brlcad/lib/
liboptical.so.19
#15 0x000000000040b7bd in ?? ()
#16 0x000000080083bda7 in rt_shootray () from /usr/local/brlcad/
lib/librt.so.19
#17 0x0000000000408867 in ?? ()
#18 0x0000000000409d8a in ?? ()
#19 0x0000000000409e0f in ?? ()
#20 0x000000000040493b in ?? ()
#21 0x0000000000405f8b in ?? ()
#22 0x00000000004033ce in ?? ()
...

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