[Ace-users] [tao-bugs] run out of memory caused by bounded recursive sequence

[Stanisław Trytek]

     TAO VERSION: 1.5.10
     ACE VERSION: 5.5.10

     HOST MACHINE and OPERATING SYSTEM:
	linux debian sarge

     COMPILER NAME AND VERSION (AND PATCHLEVEL): gcc-3.3

     THE $ACE_ROOT/include/makeinclude/platform_macros.GNU FILE
	threads = 0

     AREA/CLASS/EXAMPLE AFFECTED:
	bounded sequence


     DOES THE PROBLEM AFFECT:
	EXECUTION

     SYNOPSIS:
	Definition of bounded recursive sequence causes segmentation fault

     DESCRIPTION:
	We are moving from x.4.2 version to 5.5.10 and have encountered strange  
behaviour.
	The problem concerns only bounded sequences ( unbounded work fine).  This  
new feature because
	in version x.4.2 it worked fine. Has something changed in this case?

	This is simple idl file to picture the problem:
	__________________________________
	module Test{
		struct Node {
			sequence <Node, 256> nodes;
		};
	
	}
	__________________________________


	As defined
	
	Test::Node node;

	it tries to allocate recursively the whole memory, so that finally it  
runs out of memory and causes segmentation fault.

That is gdb output:
(gdb) where
#0  0x4051883f in mallopt () from /lib/tls/libc.so.6
#1  0x40517c43 in malloc () from /lib/tls/libc.so.6
#2  0x404532fe in operator new () from /usr/lib/libstdc++.so.5
#3  0x4045342f in operator new[] () from /usr/lib/libstdc++.so.5
#4  0x4002e8ad in _tao_seq_Test_Node__256 (this=0x300c58fc) at  
Bounded_Value_Allocation_Traits_T.h:39
#5  0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300c44f4) at  
Bounded_Value_Allocation_Traits_T.h:40
#6  0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300c30ec) at  
Bounded_Value_Allocation_Traits_T.h:40
#7  0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300c1ce4) at  
Bounded_Value_Allocation_Traits_T.h:40
#8  0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300c08dc) at  
Bounded_Value_Allocation_Traits_T.h:40
#9  0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300bf4d4) at  
Bounded_Value_Allocation_Traits_T.h:40
#10 0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300be0cc) at  
Bounded_Value_Allocation_Traits_T.h:40
#11 0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300bccc4) at  
Bounded_Value_Allocation_Traits_T.h:40
#12 0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300bb8bc) at  
Bounded_Value_Allocation_Traits_T.h:40
#13 0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300ba4b4) at  
Bounded_Value_Allocation_Traits_T.h:40
#14 0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300b90ac) at  
Bounded_Value_Allocation_Traits_T.h:40
#15 0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300b7ca4) at  
Bounded_Value_Allocation_Traits_T.h:40
#16 0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300b689c) at  
Bounded_Value_Allocation_Traits_T.h:40
#17 0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300b5494) at  
Bounded_Value_Allocation_Traits_T.h:40
#18 0x4002e8c8 in _tao_seq_Test_Node__256 (this=0x300b408c) at  
Bounded_Value_Allocation_Traits_T.h:40
etc. .........
	

Stanislaw Trytek

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