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The stack for this crash on the unix verison.
(gdb) r ttto.ini +sf100 +ef120
Starting program: /home/dick/povray/povray/unix/povray ttto.ini +sf100
+ef120
...
Persistence of Vision(tm) Ray Tracer Version 3.7.1-beta.5.unofficial
(g++ 5.4.0
@ x86_64-pc-linux-gnu)
...
Thread 6 "povray" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffef967700 (LWP 6407)]
__GI___libc_free (mem=0x34) at malloc.c:2949
2949 malloc.c: No such file or directory.
(gdb) back
#0 __GI___libc_free (mem=0x34) at malloc.c:2949
#1 0x00000000005165ee in pov::Parser::Parse_RValue
(this=this@entry=0x7fffe8004db0, Previous=Previous@entry=67,
NumberPtr=NumberPtr@entry=0x7fffdc0ac480,
DataPtr=DataPtr@entry=0x7fffdc0ac478,
sym=sym@entry=0x0, ParFlag=ParFlag@entry=false, SemiFlag=true,
is_local=true, allow_redefine=true, allowUndefined=true,
old_table_index=100) at parser/parser.cpp:9315
#2 0x00000000005179b8 in pov::Parser::Parse_Declare
(this=this@entry=0x7fffe8004db0, is_local=<optimized out>,
after_hash=<optimized out>) at parser/parser.cpp:8804
#3 0x000000000061fa07 in pov::Parser::Parse_Directive
(this=this@entry=0x7fffe8004db0, After_Hash=After_Hash@entry=1) at
parser/parser_tokenizer.cpp:2330
#4 0x000000000061b1b3 in pov::Parser::Get_Token
(this=this@entry=0x7fffe8004db0) at parser/parser_tokenizer.cpp:456
#5 0x0000000000620609 in pov::Parser::Get_Token
(this=this@entry=0x7fffe8004db0) at parser/parser_tokenizer.cpp:323
#6 0x0000000000518978 in pov::Parser::Parse_Frame (this=0x7fffe8004db0)
at parser/parser.cpp:6809
#7 0x0000000000519424 in pov::Parser::Run (this=0x7fffe8004db0) at
parser/parser.cpp:217
#8 0x00000000004a54d5 in pov::Task::TaskThread (this=0x7fffe8004db0,
completion=...) at backend/support/task.cpp:168
#9 0x00007ffff70ae5d5 in ?? () from
/usr/lib/x86_64-linux-gnu/libboost_thread.so.1.58.0
#10 0x00007ffff63e26ba in start_thread (arg=0x7fffef967700) at
pthread_create.c:333
#11 0x00007ffff611882d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
(gdb)
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