$ ./meta/gdb-uninstalled-guile GNU gdb (GDB) 7.4-debian Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "i486-gnu". For bug reporting instructions, please see: ... Reading symbols from /home/cyril/GUILE/guile-2.0.5/libguile/.libs/lt-guile...done. (gdb) r Starting program: /home/cyril/GUILE/guile-2.0.5/libguile/.libs/lt-guile [New Thread 29569.5] Program received signal SIGSEGV, Segmentation fault. 0x011b51ad in GC_find_limit_with_bound () from /usr/lib/libgc.so.1 (gdb) c Continuing. GNU Guile 2.0.5 Copyright (C) 1995-2012 Free Software Foundation, Inc. Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'. This program is free software, and you are welcome to redistribute it under certain conditions; type `,show c' for details. Enter `,help' for help. scheme@(guile-user)> (+ 1 2) [New Thread 29569.6] Program received signal SIGUSR1, User defined signal 1. 0x013f67cc in ?? () from /lib/i386-gnu/libc.so.0.3 (gdb) c Continuing. Program received signal SIGUSR2, User defined signal 2. 0x013f67cc in ?? () from /lib/i386-gnu/libc.so.0.3 (gdb) c Continuing. $1 Program received signal SIGILL, Illegal instruction. 0x01413a5c in _hurd_intr_rpc_mach_msg () from /lib/i386-gnu/libc.so.0.3 (gdb) bt #0 0x01413a5c in _hurd_intr_rpc_mach_msg () from /lib/i386-gnu/libc.so.0.3 #1 0x015bef96 in io_write () from /lib/i386-gnu/libhurduser.so.0.3 #2 0x01418c31 in ?? () from /lib/i386-gnu/libc.so.0.3 #3 0x0141eab2 in ?? () from /lib/i386-gnu/libc.so.0.3 #4 0x014186d8 in ?? () from /lib/i386-gnu/libc.so.0.3 #5 0x014d7802 in write () from /lib/i386-gnu/libc.so.0.3 #6 0x01121324 in safe_write (fd=fd@entry=1, buf=buf@entry=0x17fece0, count=count@entry=2) at safe-read.c:66 #7 0x011208b8 in full_write (fd=1, buf=buf@entry=0x17fece0, count=count@entry=2) at full-write.c:65 #8 0x01088092 in fport_write (port=0x80f8c08, data=0x17fece0, size=2) at fports.c:772 #9 0x010c1531 in scm_lfwrite (ptr=ptr@entry=0x17fece0 "$1\004\b", size=size@entry=2, port=port@entry=0x80f8c08) at ports.c:1449 #10 0x010c4f17 in display_string_as_utf8 (port=, len=, narrow_p=, str=) at print.c:862 #11 display_string (str=0x83427f8, narrow_p=1, len=len@entry=2, port=port@entry=0x80f8c08, strategy=SCM_FAILED_CONVERSION_QUESTION_MARK) at print.c:990 #12 0x010c6b1d in iprin1 (exp=0x8404490, port=0x80f8c08, pstate=0x82804d8) at print.c:586 #13 0x010c7124 in scm_prin1 (exp=exp@entry=0x8404490, port=port@entry=0x80f8c08, writingp=writingp@entry=0) at print.c:777 #14 0x010c5886 in scm_display (obj=0x8404490, port=port@entry=0x80f8c08) at print.c:1341 #15 0x010c5be9 in print_normal_symbol (port=0x80f8c08, sym=0x84044c0) at print.c:386 #16 scm_i_print_symbol_name (sym=sym@entry=0x84044c0, port=port@entry=0x80f8c08) at print.c:431 #17 0x010c6ec1 in iprin1 (exp=0x84044c0, port=0x80f8c08, pstate=0x8280ac0) at print.c:601 #18 0x010c7124 in scm_prin1 (exp=0x84044c0, port=port@entry=0x80f8c08, writingp=0) at print.c:777 #19 0x010c7466 in scm_simple_format (destination=0x80f8c08, message=0x8253d90, args=0x8407340) at print.c:1425 #20 0x01109b4a in vm_debug_engine (vm=0x80f8c50, program=0x15d2808, argv=0x80fb270, nargs=17592848) at vm-i-system.c:898 #21 0x0111564a in scm_c_vm_run (vm=vm@entry=0x80f8c50, program=program@entry=0x82e0768, argv=argv@entry=0x17ff2a0, nargs=1) at vm.c:567 #22 0x01115739 in scm_call_with_vm (vm=0x80f8c50, proc=proc@entry=0x82e0768, args=, args@entry=0x84073b8) at vm.c:859 #23 0x01079cf2 in scm_apply (proc=proc@entry=0x82e0768, arg1=arg1@entry=0x84073b8, args=0x84073b8, args@entry=0x304) at eval.c:748 #24 0x0107b9bb in scm_apply_0 (proc=0x82e0768, args=args@entry=0x84073b8) at eval.c:582 #25 0x01098bd6 in scm_c_run_hook (hook=hook@entry=0x8196fe0, args=args@entry=0x84073b8) at hooks.c:274 #26 0x01098c44 in scm_run_hook (hook=0x8196fe0, args=0x84073b8) at hooks.c:262 #27 0x01109aa6 in vm_debug_engine (vm=0x80f8c50, program=0x15d2808, argv=0x80fb228, nargs=17402864) at vm-i-system.c:895 #28 0x0111564a in scm_c_vm_run (vm=0x80f8c50, program=program@entry=0x813c150, argv=argv@entry=0x17ff5e0, nargs=nargs@entry=1) at vm.c:567 #29 0x0107bc37 in scm_primitive_eval (exp=exp@entry=0x8208ae0) at eval.c:685 #30 0x0107bcb0 in scm_eval (exp=0x8208ae0, module_or_state=module_or_state@entry=0x81786c0) at eval.c:719 #31 0x010d3333 in scm_shell (argc=1, argv=0x17ffd08) at script.c:441 #32 0x0109c2ac in invoke_main_func (body_data=0x17ffc50) at init.c:336 #33 0x01071470 in c_body (d=0x17ffb94) at continuations.c:512 #34 0x010fc734 in apply_catch_closure (clo=0x81ec670, args=0x304) at throw.c:146 #35 0x011140da in vm_regular_engine (vm=0x80f8c50, program=0x15d2808, argv=0x81ec670, nargs=4) at vm-i-system.c:960 #36 0x0111564a in scm_c_vm_run (vm=0x80f8c50, program=program@entry=0x8143a50, argv=argv@entry=0x17ffaa0, nargs=nargs@entry=4) at vm.c:567 #37 0x0107b634 in scm_call_4 (proc=0x8143a50, arg1=arg1@entry=0x404, arg2=arg2@entry=0x81ec670, arg3=arg3@entry=0x81ec660, arg4=arg4@entry=0x81ec650) at eval.c:507 #38 0x010fcbb6 in scm_catch_with_pre_unwind_handler (key=key@entry=0x404, thunk=thunk@entry=0x81ec670, handler=handler@entry=0x81ec660, pre_unwind_handler=0x81ec650) at throw.c:86 #39 0x010fcd9c in scm_c_catch (tag=tag@entry=0x404, body=body@entry=0x1071460 , body_data=body_data@entry=0x17ffb94, handler=handler@entry=0x10718f0 , handler_data=handler_data@entry=0x17ffb94, pre_unwind_handler=pre_unwind_handler@entry=0x10715b0 , pre_unwind_handler_data=pre_unwind_handler_data@entry=0x80f8be8) at throw.c:213 #40 0x01071d03 in scm_i_with_continuation_barrier (body=body@entry=0x1071460 , body_data=body_data@entry=0x17ffb94, handler=handler@entry=0x10718f0 , handler_data=handler_data@entry=0x17ffb94, pre_unwind_handler=pre_unwind_handler@entry=0x10715b0 , pre_unwind_handler_data=0x80f8be8) at continuations.c:450 #41 0x01071de6 in scm_c_with_continuation_barrier (func=0x109c270 , data=0x17ffc50) at continuations.c:546 #42 0x010f9fda in with_guile_trampoline (data=0x17ffc24) at threads.c:884 #43 with_gc_active (data=0x17ffc24, func=) at threads.c:255 #44 with_guile_and_parent (base=0x17ffbfc, data=0x17ffc24) at threads.c:930 #45 0x011b421e in GC_call_with_stack_base () from /usr/lib/libgc.so.1 #46 0x010fa1ff in scm_i_with_guile_and_parent (parent=, data=0x17ffc50, func=0x109c270 ) at threads.c:945 #47 scm_with_guile (func=func@entry=0x109c270 , data=data@entry=0x17ffc50) at threads.c:951 #48 0x0109c435 in scm_boot_guile (argc=argc@entry=1, argv=argv@entry=0x17ffd08, main_func=main_func@entry=0x8048960 , closure=closure@entry=0x0) at init.c:319 #49 0x08048875 in main (argc=1, argv=0x17ffd08) at guile.c:71