Can you try reducing your testcase? 563 KB is definitely unmanageable.

Created attachment 25275 [details]
Not-preprocessed source

As requested, I attach a minimal source code with some comments. There are no external dependencies, just <iostream> gets #included. The compilation result is the same as already stated (segmentation fault during compilation).

I recently blogged about this issue: http://wp.me/pzWEm-9N.

Ah, ok, the below seems enough:

template<typename Interface>
struct A1 {
};

template<template<class I> class... Actions>
void g2() {
  g2<Actions...>();
}

int main()
{
  g2<A1>();
}

Program received signal SIGSEGV, Segmentation fault.
[Switching to process 30771]
tsubst_template_parms (parms=0x0, args=0x7ffff77a6d98, complain=3) at ../../gcc/gcc/cp/pt.c:9507
9507           TMPL_PARMS_DEPTH (parms) > TMPL_ARGS_DEPTH (args);

(gdb) bt
#0  tsubst_template_parms (parms=0x0, args=0x7ffff77a6d98, complain=3) at ../../gcc/gcc/cp/pt.c:9507
#1  0x00000000004c6d9a in tsubst_decl (t=0x7ffff77a7e60, args=0x7ffff77a6d98, complain=3) at ../../gcc/gcc/cp/pt.c:9789
#2  0x00000000004c3ce5 in tsubst (in_decl=<optimized out>, complain=3, args=0x7ffff77a6d98, t=0x7ffff77a7e60) at ../../gcc/gcc/cp/pt.c:10851
#3  tsubst (t=0x7ffff77a7e60, args=0x7ffff77a6d98, complain=3, in_decl=<optimized out>) at ../../gcc/gcc/cp/pt.c:10836
#4  0x00000000004c821f in tsubst_pack_expansion (t=0x7ffff77afe70, args=0x7ffff77a6f78, complain=3, in_decl=0x7ffff77a7f18)
    at ../../gcc/gcc/cp/pt.c:9298
#5  0x00000000004c656b in tsubst_template_args (t=0x7ffff77a6ac8, args=0x7ffff77a6d98, complain=3, in_decl=0x7ffff77a7f18)
    at ../../gcc/gcc/cp/pt.c:9400
#6  0x00000000004c1e46 in tsubst_copy_and_build (t=0x7ffff7fd9a50, args=0x7ffff77a6d98, complain=3, in_decl=0x7ffff77a7f18, function_p=1 '\001', 
    integral_constant_expression_p=<optimized out>) at ../../gcc/gcc/cp/pt.c:13035
#7  0x00000000004c1c9e in tsubst_copy_and_build (t=0x7ffff77bd038, args=0x7ffff77a6d98, complain=3, in_decl=0x7ffff77a7f18, function_p=0 '\000', 
    integral_constant_expression_p=0 '\000') at ../../gcc/gcc/cp/pt.c:13390
#8  0x00000000004bd239 in tsubst_expr (t=0x7ffff77bd038, args=0x7ffff77a6d98, complain=3, in_decl=0x7ffff77a7f18, 
    integral_constant_expression_p=0 '\000') at ../../gcc/gcc/cp/pt.c:12935
#9  0x00000000004bdc70 in tsubst_expr (t=0x7ffff77a6b40, args=0x7ffff77a6d98, complain=3, in_decl=0x7ffff77a7f18, 
    integral_constant_expression_p=0 '\000') at ../../gcc/gcc/cp/pt.c:12467
#10 0x00000000004bd2b1 in tsubst_expr (t=0x7ffff77bd000, args=0x7ffff77a6d98, complain=3, in_decl=0x7ffff77a7f18, 
    integral_constant_expression_p=0 '\000') at ../../gcc/gcc/cp/pt.c:12632
#11 0x00000000004d0ccc in instantiate_decl (d=0x7ffff77aee00, defer_ok=<optimized out>, expl_inst_class_mem_p=<optimized out>)
    at ../../gcc/gcc/cp/pt.c:18305
#12 0x00000000004d34dc in instantiate_pending_templates (retries=<optimized out>) at ../../gcc/gcc/cp/pt.c:18402
#13 0x00000000004e8a4d in cp_write_global_declarations () at ../../gcc/gcc/cp/decl2.c:3713
#14 0x00000000007f11c2 in compile_file () at ../../gcc/gcc/toplev.c:564
#15 do_compile () at ../../gcc/gcc/toplev.c:1886
#16 toplev_main (argc=13, argv=0x7fffffffdf28) at ../../gcc/gcc/toplev.c:1962
#17 0x00007ffff7b81f82 in __libc_start_main (main=0x5a11b0 <main>, argc=13, ubp_av=0x7fffffffdf28, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7fffffffdf18) at libc-start.c:226
#18 0x000000000048cf89 in _start () at ../sysdeps/x86_64/elf/start.S:113
(gdb)

Author: jason
Date: Tue Apr 17 02:29:27 2012
New Revision: 186519

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186519
Log:
	PR c++/50303
	* pt.c (tsubst_pack_expansion): Use tsubst_expr for template
	template parameters.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/variadic128.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/pt.c
    trunk/gcc/testsuite/ChangeLog

Author: jason
Date: Tue Apr 17 14:10:54 2012
New Revision: 186531

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186531
Log:
	PR c++/50303
	* pt.c (tsubst_pack_expansion): Use tsubst_expr for template
	template parameters.

Added:
    branches/gcc-4_7-branch/gcc/testsuite/g++.dg/cpp0x/variadic128.C
Modified:
    branches/gcc-4_7-branch/gcc/cp/ChangeLog
    branches/gcc-4_7-branch/gcc/cp/pt.c
    branches/gcc-4_7-branch/gcc/testsuite/ChangeLog

Fixed for 4.7.1.