Sorry, on that dump there was no debug. Here's a --with-debug AND --without-ffcall trace:

This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-linux"...
Breakpoint 1 at 0x40ee0: file eval.d, line 4929.
Breakpoint 2 at 0x3cfac: file eval.d, line 4012.
Breakpoint 3 at 0x376fc: file eval.d, line 2874.
Breakpoint 4 at 0x43714: file eval.d, line 5897.
Breakpoint 5 at 0x17ae4: file spvw_garcol.d, line 2430.
Watchpoint 6: back_trace
Function "register_foreign_inttype" not defined.
Breakpoint 7 at 0x1c3dc: file spvw.d, line 658.
Breakpoint 8 at 0xd890: file spvw.d, line 479.
Breakpoint 9 at 0xd93c: file spvw.d, line 494.
Breakpoint 10 at 0x15fd0c: file error.d, line 349.
Breakpoint 11 at 0x15fc5c: file error.d, line 326.
Breakpoint 12 at 0x160fa4: file errunix.d, line 680.
Breakpoint 13 at 0x161070: file errunix.d, line 695.
Breakpoint 14 at 0x161274: file error.d, line 425.
Breakpoint 15 at 0x161168: file errunix.d, line 723.
Num Type Disp Enb Address What
1 breakpoint keep n 0x00040ee0 in funcall at eval.d:4929
---Type <return> to continue, or q <return> to quit---
xout fun
2 breakpoint keep n 0x0003cfac in apply at eval.d:4012
xout fun
3 breakpoint keep n 0x000376fc in eval at eval.d:2874
xout form
4 breakpoint keep n 0x00043714 in interpret_bytecode_ at eval.d:5897
xout closure
5 breakpoint keep n 0x00017ae4 in gar_col at spvw_garcol.d:2430
6 watchpoint keep n back_trace
silent
printf "%30s: %d %d\n", name_asciz, size, signed_p
continue
7 breakpoint keep y 0x0001c3dc in fehler_notreached at spvw.d:658
8 breakpoint keep y 0x0000d890 in SP_ueber at spvw.d:479
9 breakpoint keep y 0x0000d93c in STACK_ueber at spvw.d:494
10 breakpoint keep y 0x0015fd0c in fehler at error.d:349
11 breakpoint keep y 0x0015fc5c in prepare_error at error.d:326
12 breakpoint keep y 0x00160fa4 in OS_error at errunix.d:680
13 breakpoint keep y 0x00161070 in OS_file_error at errunix.d:695
14 breakpoint keep y 0x00161274 in OS_filestream_error at error.d:425
15 breakpoint keep y 0x00161168 in errno_out_low at errunix.d:723
Function "sigsegv_handler_failed" not defined.
/scratchbox/users/scott/code/clisp/clisp-2.43/src/.gdbinit:172: Error in sourced command file:
No symbol "byteptr" in current context.
(gdb)