[ECOS] Memory allocation failure

[David Brennan <eCos@brennanhome.com>]

I have created two different applications with the same eCos 
configuration and essentially the same code base. One trivial 
application which is missing most of the meat of the main application. 
The trivial application runs fine. However when I try and start the real 
application, it dies during my static constructors. I have traced the 
problem down to a malloc call, but GDB eventually hangs while trying to 
single step through there. It always hangs at this one particular 
malloc, when constructing one particular instantiation of a class. Any 
ideas? Is there a fixed number of pool elements which can be allocated 
using dlmalloc?
Target is i386 VME based PC.

I have asserts turned on.

gdb output:
{my code here}
902         while( (p = (heapBlockHeaderT*) malloc(nSizeWithHeader)) == 
NULL )
(gdb) s
malloc (size=160)
    at 
/ecos-c/cygwin/opt/ecos/Applications/ecos/install/include/cyg/memalloc/dlmalloc.hxx:133
133         try_alloc( cyg_int32 size ) { return mypool.try_alloc( size ); }
(gdb) s
432             sched_lock++;
(gdb) n
251         CYG_ASSERTCLASS( this, "Bad this pointer");
(gdb)
358     {
(gdb)
403         if( this == NULL ) return false;
(gdb)
394     {
(gdb)
253         cyg_uint8 *ret = pool.try_alloc( size );
(gdb) p mypool
$1 = {pool = {arenabase = 0x26f830 "U\211å\203ì\b\203ì\bhÿÿ", arenasize 
= 2559322, av_ = {
      0x27118a, 0x273668, 0x274142, 0x277820, 0x27a0d0, 0x27b808, 
0x27c34c, 0x27d278, 0x27e116,
      0x27faa0, 0x28019a, 0x280434, 0x2819f0, 0x282528, 0x282c00, 
0x28341e, 0x283590, 0x283fde,
      0x284540, 0x2863e2, 0x286954, 0x287a6a, 0x287cf8, 0x2882c0, 
0x2886d0, 0x28c59a, 0x28cb7e,
      0x28cc44, 0x28ceda, 0x290a88, 0x2911dc, 0x291360, 0x2922f4, 
0x29321a, 0x2935a4, 0x29613a,
      0x2965be, 0x296844, 0x297348, 0x299fc4, 0x29b650, 0x29e0b4, 
0x29e146, 0x29e680, 0x29eeba,
      0x29fd86, 0x2a109c, 0x2a186c, 0x2a1ffa, 0x2a2b32, 0x2a54ac, 
0x2a5a48, 0x2a8a5a, 0x2b90f0,
      0x2e1eac, 0x2ade8c, 0x2c7eec, 0x2ccfa8, 0x2c1610, 0x2c1da0, 
0x2c1684, 0x2df5b0, 0x2e31b0,
      0x2ae3a4, 0x2c8dfc, 0x2ca95c, 0x2cafbc, 0x2ad124, 0x2bf3a8, 
0x2bac14, 0x2c8604, 0x2e109c,
      0x2bad20, 0x2bb3a4, 0x2bcb44, 0x2b7ee0, 0x208db2, 0x2097aa, 
0x212b92, 0x22f2fa, 0x231ddc,
      0x232262, 0x2652e0, 0x266466, 0x26b084, 0x26b8f8, 0x26f84a, 
0x2711a4, 0x273682, 0x27415c,
      0x27783a, 0x27a0ea, 0x27b822, 0x27c366, 0x27e130, 0x27faba, 
0x2801b4, 0x281a0a, 0x282542,
      0x282c1a, 0x283438, 0x2863fc, 0x287a84, 0x287d12, 0x2882da, 
0x2886ea, 0x28c5b4, 0x28cb98,
      0x28cc5e, 0x28cef4, 0x290aa2, 0x29137a, 0x29230e, 0x2935be, 
0x296154, 0x2965d8, 0x297362,
      0x299fde, 0x29b66a, 0x29e0ce, 0x29eed4, 0x29fda0, 0x2a10b6, 
0x2a2014, 0x2a2b4c, 0x2a54c6,
      0x2a5a62, 0x2a8a74, 0x2c7f04, 0x2c1628, 0x2c1db8, 0x2c169c, 
0x2df5c8, 0x2e31c8, 0x2ae3bc,
      0x2c8e14, 0x2ca974, 0x2cafd4, 0x2bf3c0, 0x2bac2c, 0x2e10b4, 
0x2bb3bc, 0x2bcb5c, 0x0, 0x0,
      0x0, 0x0, 0x0, 0x0, 0x0, 0x2dc2dc, 0x0, 0x39ad86, 0x0, 0x0, 0x0, 
0x0, 0x0, 0x2cbe98, 0x0,
      0x399d3a, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2e40f4, 0x0, 0x39c6d9, 0x0, 
0x0, 0x0, 0x0, 0x0,
      0x2ccfc0, 0x0, 0x39a1e4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2d8c1c, 0x0, 
0x39abec, 0x0, 0x0, 0x0,
      0x0, 0x0, 0x2d8be8, 0x39efa0, 0x39a61c, 0x0, 0x0, 0x0, 0x0, 0x0, 
0x2d8be8, 0x39e960...}},
  queue = {<Cyg_ThreadQueue_Implementation> = {<Cyg_CList_T<Cyg_Thread>> 
= {<Cyg_CList> = {
          head = 0x2ae3dc}, <No data fields>}, <No data fields>}, <No 
data fields>}}
(gdb) s


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