Hi,

As was discussed on irc, I investigated a bit deeper the issue.

First I compiled libgc-7.2d

./configure
make
make check

All tests passed ! (which was not the case with guile-2.0.7)

But make install failed for --prefix in the user ~/devel/libgc directory
(see hurdlibgcinstall)


Anyway I ran meta/gdb-uninstalled-guile from the 2.0.7 build dir and
went a bit further with gdb, the log is attached as 'hurdguilereplfail3'.

Always with meta/gdb-uninstalled-guile, there seem to be no error to run
some code by direcly evaluating the expression.

(gdb) r -c '(display "hello!")'
Starting program: /home/bubu/devel/guile-2.0.7/libguile/.libs/lt-guile
-c '(display "hello!")'
[New Thread 8566.14]

Program received signal SIGSEGV, Segmentation fault.
0x011ac1ad in GC_find_limit_with_bound () from /usr/lib/libgc.so.1
(gdb) continue
Continuing.
hello![Inferior 1 (bogus thread id 0) exited normally]
(gdb)

Afterwards I installed libc0.3-dbg and ran it another time, result is
attached in 'hurdguilereplfail4'.

For the moment I didn't build guile-2.0.7 with the new libgc (7.2d) version.
I will give it more trial tomorrow and let you know.

Regards,

Gabriel Schnoering

On 02/02/2013 19:51, Gabriel Schnoering wrote:
> Hi, everyone.
> 
> I see that some people are excited by guile and the hurd.
> So I'm coming here to break a bit the good mood, sorry for that.
> 
> I'm still stuck with the following issue I guess bug#11776: Guile with Hurd.
> 
> Running the following command in the shell
> 
>       $ guile -c '(display (+ 1 2) (newline))'
>       3
>       $
> 
> works, however in guile
> 
>       scheme@(guile-user)> (display (+ 1 2))
>       Illegal instruction
> 
> Whatever scheme I try from REPL gives "Illegal instruction".
> 
>       scheme@(guile-user)> ,help
> 
> works but
> 
>       scheme@(guile-user)> ,describe +
> 
> quits with Illegal instruction
> 
> For example, just pressing "TAB" also quits with:
> 
> :~$ guile
> GNU Guile 2.0.5-deb+1-3
> 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)> Illegal instruction
> :~$
> 
> I can't run guile in gdb as there are some error with the garbage
> collector.
> 
> :~$ gdb guile
> GNU gdb (GDB) 7.4-debian
> Copyright (C) 2012 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> 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:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from /usr/bin/guile...(no debugging symbols found)...done.
> (gdb) r
> Starting program: /usr/bin/guile
> [New Thread 545.5]
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x013ac1ad in GC_find_limit_with_bound () from /usr/lib/libgc.so.1
> (gdb) bt
> #0  0x013ac1ad in GC_find_limit_with_bound () from /usr/lib/libgc.so.1
> #1  0x013ac26c in GC_find_limit () from /usr/lib/libgc.so.1
> #2  0x013ac2f3 in GC_get_main_stack_base () from /usr/lib/libgc.so.1
> #3  0x013ab75d in GC_init_inner () from /usr/lib/libgc.so.1
> #4  0x013ab794 in GC_init () from /usr/lib/libgc.so.1
> #5  0x01090d20 in ?? () from /usr/lib/libguile-2.0.so.22
> #6  0x010a248d in ?? () from /usr/lib/libguile-2.0.so.22
> #7  0x010fff50 in ?? () from /usr/lib/libguile-2.0.so.22
> #8  0x010fff8e in ?? () from /usr/lib/libguile-2.0.so.22
> #9  0x013ab21e in GC_call_with_stack_base () from /usr/lib/libgc.so.1
> #10 0x011001df in scm_with_guile () from /usr/lib/libguile-2.0.so.22
> #11 0x010a2435 in scm_boot_guile () from /usr/lib/libguile-2.0.so.22
> #12 0x080487e5 in ?? ()
> #13 0x0124167b in __libc_start_main () from /lib/i386-gnu/libc.so.0.3
> #14 0x0804880d in ?? ()
> (gdb)
> 
> 
> I am using the debian hurd image with qemu.
> 
> I tried with guile 2.0.7 (can't build the master as it request automake
> 1.12 which is not available yet) and some of make checks tests failed
> (colored in red !)
> 
> 
> bubu@debian:~/devel/guile-2.0.7$ ./meta/guile
> GNU Guile 2.0.7
> 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)> (display "héhéh")
> Illegal instruction
> bubu@debian:~/devel/guile-2.0.7$
> 
> I attached the result of make checks for guile-2.0.7
> 
> Let me know if you have some hints on how to obtain more infos or small
> tests to perform to solve this issue.
> 
> Regards,
> 
> Gabriel Schnoering.
> 

bubu@debian:~/devel/guile-2.0.7$ ./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 <http://gnu.org/licenses/gpl.html>
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:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from 
/home/bubu/devel/guile-2.0.7/libguile/.libs/lt-guile...done.
(gdb) r
Starting program: /home/bubu/devel/guile-2.0.7/libguile/.libs/lt-guile 
[New Thread 8596.5]

Program received signal SIGSEGV, Segmentation fault.
0x011ac1ad in GC_find_limit_with_bound () from /usr/lib/libgc.so.1
(gdb) bt
#0  0x011ac1ad in GC_find_limit_with_bound () from /usr/lib/libgc.so.1
#1  0x011ac26c in GC_find_limit () from /usr/lib/libgc.so.1
#2  0x011ac2f3 in GC_get_main_stack_base () from /usr/lib/libgc.so.1
#3  0x011ab75d in GC_init_inner () from /usr/lib/libgc.so.1
#4  0x011ab794 in GC_init () from /usr/lib/libgc.so.1
#5  0x0108b1fc in scm_storage_prehistory () at gc.c:639
#6  0x0109c81d in scm_i_init_guile (base=base@entry=0x17ffbec) at init.c:386
#7  0x010fa8f0 in scm_i_init_thread_for_guile (base=0x17ffbec, 
parent=<optimized out>) at threads.c:833
#8  scm_i_init_thread_for_guile (base=0x17ffbec, parent=0x0) at threads.c:812
#9  0x010fa92e in with_guile_and_parent (base=0x17ffbec, data=0x17ffc14) at 
threads.c:899
#10 0x011ab21e in GC_call_with_stack_base () from /usr/lib/libgc.so.1
#11 0x010fab7f in scm_i_with_guile_and_parent (parent=<optimized out>, 
data=0x17ffc40, func=0x109c600 <invoke_main_func>) at threads.c:949
#12 scm_with_guile (func=func@entry=0x109c600 <invoke_main_func>, 
data=data@entry=0x17ffc40) at threads.c:955
#13 0x0109c7c5 in scm_boot_guile (argc=argc@entry=1, argv=argv@entry=0x17ffcf8, 
main_func=main_func@entry=0x8048960 <inner_main>, closure=closure@entry=0x0)
    at init.c:321
#14 0x08048875 in main (argc=1, argv=0x17ffcf8) at guile.c:71
(gdb) continue 
Continuing.
GNU Guile 2.0.7
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)> (display "hello!")
[New Thread 8596.6]

Program received signal SIGUSR1, User defined signal 1.
0x013ed7cc in ?? () from /lib/i386-gnu/libc.so.0.3
(gdb) bt
#0  0x013ed7cc in ?? () from /lib/i386-gnu/libc.so.0.3
#1  0x013edfc9 in mach_msg () from /lib/i386-gnu/libc.so.0.3
#2  0x015b1c4f in msg_sig_post () from /lib/i386-gnu/libhurduser.so.0.3
#3  0x01408e3c in _hurd_raise_signal () from /lib/i386-gnu/libc.so.0.3
#4  0x013cc55a in pthread_kill () from /lib/i386-gnu/libpthread.so.0.3
#5  0x011b07ac in GC_suspend_all () from /usr/lib/libgc.so.1
#6  0x011b0830 in GC_stop_world () from /usr/lib/libgc.so.1
#7  0x011a0780 in GC_stopped_mark () from /usr/lib/libgc.so.1
#8  0x011a0eda in GC_try_to_collect_inner () from /usr/lib/libgc.so.1
#9  0x011a1a1c in GC_collect_or_expand () from /usr/lib/libgc.so.1
#10 0x011a1c2f in GC_allocobj () from /usr/lib/libgc.so.1
#11 0x011a651f in GC_generic_malloc_inner () from /usr/lib/libgc.so.1
#12 0x011a3e6b in GC_general_register_disappearing_link () from 
/usr/lib/libgc.so.1
#13 0x01117e58 in scm_weak_car_pair (car=0x84f9d40, cdr=0x904) at weaks.c:67
#14 0x01096d35 in scm_hash_fn_create_handle_x (table=0x809efe0, 
obj=obj@entry=0x84f9d40, init=init@entry=0x904, 
    hash_fn=hash_fn@entry=0x10f8710 <symbol_lookup_hash_fn>, 
assoc_fn=assoc_fn@entry=0x10f8e60 <symbol_lookup_assoc_fn>, 
closure=closure@entry=0x0) at hashtab.c:723
#15 0x010f885c in intern_symbol (symbol=0x84f9d40) at symbols.c:195
#16 scm_i_str2symbol (str=<optimized out>) at symbols.c:218
#17 0x010f90a5 in scm_from_latin1_symboln (sym=0x3dc723 
"format-string-argument-count\244\003\f\t\002g", len=28) at symbols.c:479
#18 0x01108111 in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x3dc73f, 
nargs=0) at vm-i-loader.c:55
#19 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x84dba40, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#20 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x84dba60) at 
vm.c:1052
#21 0x010a3360 in scm_primitive_load_path (args=0x84e69e8) at load.c:942
#22 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d2638, 
nargs=0) at vm-i-system.c:850
#23 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8469180, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#24 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x84691a0) at 
vm.c:1052
#25 0x010a3360 in scm_primitive_load_path (args=0x8473f70) at load.c:942
#26 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d24d4, 
nargs=0) at vm-i-system.c:850
#27 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8447aa0, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#28 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x8447ac0) at 
vm.c:1052
#29 0x010a3360 in scm_primitive_load_path (args=0x844b310) at load.c:942
#30 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d2370, 
nargs=1) at vm-i-system.c:850
#31 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8137930, 
argv=argv@entry=0x17ff780, nargs=nargs@entry=1) at vm.c:741
#32 0x0107be37 in scm_primitive_eval (exp=exp@entry=0x81c76c8) at eval.c:685
#33 0x0107beb0 in scm_eval (exp=0x81c76c8, 
module_or_state=module_or_state@entry=0x8184678) at eval.c:719
#34 0x010d3bb3 in scm_shell (argc=1, argv=0x17ffcf8) at script.c:441
#35 0x0109c63c in invoke_main_func (body_data=0x17ffc40) at init.c:338
#36 0x010710c0 in c_body (d=0x17ffb84) at continuations.c:511
#37 0x010fd094 in apply_catch_closure (clo=0x81f6ec0, args=0x304) at throw.c:146
#38 0x010d41ef in apply_1 (smob=0x81f6ec0, a=0x304) at smob.c:141
#39 0x01114ac7 in vm_regular_engine (vm=0x80ce4e0, program=0x0, argv=0x10d41c0, 
nargs=135077976) at vm-i-system.c:853
#40 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8165b70, 
argv=argv@entry=0x17ffa90, nargs=nargs@entry=4) at vm.c:741
#41 0x0107b834 in scm_call_4 (proc=0x8165b70, arg1=arg1@entry=0x404, 
arg2=arg2@entry=0x81f6ec0, arg3=arg3@entry=0x81f6eb0, 
arg4=arg4@entry=0x81f6ea0) at eval.c:507
#42 0x010fd496 in scm_catch_with_pre_unwind_handler (key=key@entry=0x404, 
thunk=thunk@entry=0x81f6ec0, handler=handler@entry=0x81f6eb0, 
    pre_unwind_handler=0x81f6ea0) at throw.c:86
#43 0x010fd67c in scm_c_catch (tag=tag@entry=0x404, body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=pre_unwind_handler_data@entry=0x81338d0) at throw.c:213
#44 0x010718f3 in scm_i_with_continuation_barrier (body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=0x81338d0) at continuations.c:449
---Type <return> to continue, or q <return> to quit---
#45 0x010719d6 in scm_c_with_continuation_barrier (func=0x109c600 
<invoke_main_func>, data=0x17ffc40) at continuations.c:545
#46 0x010fa95a in with_guile_trampoline (data=0x17ffc14) at threads.c:888
#47 with_gc_active (data=0x17ffc14, func=<optimized out>) at threads.c:255
#48 with_guile_and_parent (base=0x17ffbec, data=0x17ffc14) at threads.c:934
#49 0x011ab21e in GC_call_with_stack_base () from /usr/lib/libgc.so.1
#50 0x010fab7f in scm_i_with_guile_and_parent (parent=<optimized out>, 
data=0x17ffc40, func=0x109c600 <invoke_main_func>) at threads.c:949
#51 scm_with_guile (func=func@entry=0x109c600 <invoke_main_func>, 
data=data@entry=0x17ffc40) at threads.c:955
#52 0x0109c7c5 in scm_boot_guile (argc=argc@entry=1, argv=argv@entry=0x17ffcf8, 
main_func=main_func@entry=0x8048960 <inner_main>, closure=closure@entry=0x0)
    at init.c:321
#53 0x08048875 in main (argc=1, argv=0x17ffcf8) at guile.c:71
(gdb) continue 
Continuing.

Program received signal SIGUSR2, User defined signal 2.
0x013ed7cc in ?? () from /lib/i386-gnu/libc.so.0.3
(gdb) bt
#0  0x013ed7cc in ?? () from /lib/i386-gnu/libc.so.0.3
#1  0x013edfc9 in mach_msg () from /lib/i386-gnu/libc.so.0.3
#2  0x015b1c4f in msg_sig_post () from /lib/i386-gnu/libhurduser.so.0.3
#3  0x01408e3c in _hurd_raise_signal () from /lib/i386-gnu/libc.so.0.3
#4  0x013cc55a in pthread_kill () from /lib/i386-gnu/libpthread.so.0.3
#5  0x011b09d2 in GC_start_world () from /usr/lib/libgc.so.1
#6  0x011a087b in GC_stopped_mark () from /usr/lib/libgc.so.1
#7  0x011a0eda in GC_try_to_collect_inner () from /usr/lib/libgc.so.1
#8  0x011a1a1c in GC_collect_or_expand () from /usr/lib/libgc.so.1
#9  0x011a1c2f in GC_allocobj () from /usr/lib/libgc.so.1
#10 0x011a651f in GC_generic_malloc_inner () from /usr/lib/libgc.so.1
#11 0x011a3e6b in GC_general_register_disappearing_link () from 
/usr/lib/libgc.so.1
#12 0x01117e58 in scm_weak_car_pair (car=0x84f9d40, cdr=0x904) at weaks.c:67
#13 0x01096d35 in scm_hash_fn_create_handle_x (table=0x809efe0, 
obj=obj@entry=0x84f9d40, init=init@entry=0x904, 
    hash_fn=hash_fn@entry=0x10f8710 <symbol_lookup_hash_fn>, 
assoc_fn=assoc_fn@entry=0x10f8e60 <symbol_lookup_assoc_fn>, 
closure=closure@entry=0x0) at hashtab.c:723
#14 0x010f885c in intern_symbol (symbol=0x84f9d40) at symbols.c:195
#15 scm_i_str2symbol (str=<optimized out>) at symbols.c:218
#16 0x010f90a5 in scm_from_latin1_symboln (sym=0x3dc723 
"format-string-argument-count\244\003\f\t\002g", len=28) at symbols.c:479
#17 0x01108111 in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x3dc73f, 
nargs=0) at vm-i-loader.c:55
#18 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x84dba40, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#19 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x84dba60) at 
vm.c:1052
#20 0x010a3360 in scm_primitive_load_path (args=0x84e69e8) at load.c:942
#21 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d2638, 
nargs=0) at vm-i-system.c:850
#22 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8469180, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#23 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x84691a0) at 
vm.c:1052
#24 0x010a3360 in scm_primitive_load_path (args=0x8473f70) at load.c:942
#25 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d24d4, 
nargs=0) at vm-i-system.c:850
#26 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8447aa0, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#27 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x8447ac0) at 
vm.c:1052
#28 0x010a3360 in scm_primitive_load_path (args=0x844b310) at load.c:942
#29 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d2370, 
nargs=1) at vm-i-system.c:850
#30 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8137930, 
argv=argv@entry=0x17ff780, nargs=nargs@entry=1) at vm.c:741
#31 0x0107be37 in scm_primitive_eval (exp=exp@entry=0x81c76c8) at eval.c:685
#32 0x0107beb0 in scm_eval (exp=0x81c76c8, 
module_or_state=module_or_state@entry=0x8184678) at eval.c:719
#33 0x010d3bb3 in scm_shell (argc=1, argv=0x17ffcf8) at script.c:441
#34 0x0109c63c in invoke_main_func (body_data=0x17ffc40) at init.c:338
#35 0x010710c0 in c_body (d=0x17ffb84) at continuations.c:511
#36 0x010fd094 in apply_catch_closure (clo=0x81f6ec0, args=0x304) at throw.c:146
#37 0x010d41ef in apply_1 (smob=0x81f6ec0, a=0x304) at smob.c:141
#38 0x01114ac7 in vm_regular_engine (vm=0x80ce4e0, program=0x0, argv=0x10d41c0, 
nargs=135077976) at vm-i-system.c:853
#39 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8165b70, 
argv=argv@entry=0x17ffa90, nargs=nargs@entry=4) at vm.c:741
#40 0x0107b834 in scm_call_4 (proc=0x8165b70, arg1=arg1@entry=0x404, 
arg2=arg2@entry=0x81f6ec0, arg3=arg3@entry=0x81f6eb0, 
arg4=arg4@entry=0x81f6ea0) at eval.c:507
#41 0x010fd496 in scm_catch_with_pre_unwind_handler (key=key@entry=0x404, 
thunk=thunk@entry=0x81f6ec0, handler=handler@entry=0x81f6eb0, 
    pre_unwind_handler=0x81f6ea0) at throw.c:86
#42 0x010fd67c in scm_c_catch (tag=tag@entry=0x404, body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=pre_unwind_handler_data@entry=0x81338d0) at throw.c:213
#43 0x010718f3 in scm_i_with_continuation_barrier (body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=0x81338d0) at continuations.c:449
#44 0x010719d6 in scm_c_with_continuation_barrier (func=0x109c600 
<invoke_main_func>, data=0x17ffc40) at continuations.c:545
---Type <return> to continue, or q <return> to quit---
#45 0x010fa95a in with_guile_trampoline (data=0x17ffc14) at threads.c:888
#46 with_gc_active (data=0x17ffc14, func=<optimized out>) at threads.c:255
#47 with_guile_and_parent (base=0x17ffbec, data=0x17ffc14) at threads.c:934
#48 0x011ab21e in GC_call_with_stack_base () from /usr/lib/libgc.so.1
#49 0x010fab7f in scm_i_with_guile_and_parent (parent=<optimized out>, 
data=0x17ffc40, func=0x109c600 <invoke_main_func>) at threads.c:949
#50 scm_with_guile (func=func@entry=0x109c600 <invoke_main_func>, 
data=data@entry=0x17ffc40) at threads.c:955
#51 0x0109c7c5 in scm_boot_guile (argc=argc@entry=1, argv=argv@entry=0x17ffcf8, 
main_func=main_func@entry=0x8048960 <inner_main>, closure=closure@entry=0x0)
    at init.c:321
#52 0x08048875 in main (argc=1, argv=0x17ffcf8) at guile.c:71
(gdb) continue 
Continuing.

Program received signal SIGILL, Illegal instruction.
0x01108288 in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, argv=0x3dd067, 
nargs=0) at vm-i-loader.c:78
78        NEXT;
(gdb) bt 
#0  0x01108288 in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x3dd067, nargs=0) at vm-i-loader.c:78
#1  0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x84dba40, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#2  0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x84dba60) at 
vm.c:1052
#3  0x010a3360 in scm_primitive_load_path (args=0x84e69e8) at load.c:942
#4  0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x80d2638, nargs=0) at vm-i-system.c:850
#5  0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8469180, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#6  0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x84691a0) at 
vm.c:1052
#7  0x010a3360 in scm_primitive_load_path (args=0x8473f70) at load.c:942
#8  0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x80d24d4, nargs=0) at vm-i-system.c:850
#9  0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8447aa0, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#10 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x8447ac0) at 
vm.c:1052
#11 0x010a3360 in scm_primitive_load_path (args=0x844b310) at load.c:942
#12 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x80d2370, nargs=1) at vm-i-system.c:850
#13 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8137930, 
argv=argv@entry=0x17ff780, nargs=nargs@entry=1) at vm.c:741
#14 0x0107be37 in scm_primitive_eval (exp=exp@entry=0x81c76c8) at eval.c:685
#15 0x0107beb0 in scm_eval (exp=0x81c76c8, 
module_or_state=module_or_state@entry=0x8184678) at eval.c:719
#16 0x010d3bb3 in scm_shell (argc=1, argv=0x17ffcf8) at script.c:441
#17 0x0109c63c in invoke_main_func (body_data=0x17ffc40) at init.c:338
#18 0x010710c0 in c_body (d=0x17ffb84) at continuations.c:511
#19 0x010fd094 in apply_catch_closure (clo=0x81f6ec0, args=0x304) at throw.c:146
#20 0x010d41ef in apply_1 (smob=0x81f6ec0, a=0x304) at smob.c:141
#21 0x01114ac7 in vm_regular_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x10d41c0, nargs=135077976) at vm-i-system.c:853
#22 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8165b70, 
argv=argv@entry=0x17ffa90, nargs=nargs@entry=4) at vm.c:741
#23 0x0107b834 in scm_call_4 (proc=0x8165b70, arg1=arg1@entry=0x404, 
arg2=arg2@entry=0x81f6ec0, arg3=arg3@entry=0x81f6eb0, 
arg4=arg4@entry=0x81f6ea0) at eval.c:507
#24 0x010fd496 in scm_catch_with_pre_unwind_handler (key=key@entry=0x404, 
thunk=thunk@entry=0x81f6ec0, handler=handler@entry=0x81f6eb0, 
    pre_unwind_handler=0x81f6ea0) at throw.c:86
#25 0x010fd67c in scm_c_catch (tag=tag@entry=0x404, body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=pre_unwind_handler_data@entry=0x81338d0) at throw.c:213
#26 0x010718f3 in scm_i_with_continuation_barrier (body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=0x81338d0) at continuations.c:449
#27 0x010719d6 in scm_c_with_continuation_barrier (func=0x109c600 
<invoke_main_func>, data=0x17ffc40) at continuations.c:545
#28 0x010fa95a in with_guile_trampoline (data=0x17ffc14) at threads.c:888
#29 with_gc_active (data=0x17ffc14, func=<optimized out>) at threads.c:255
#30 with_guile_and_parent (base=0x17ffbec, data=0x17ffc14) at threads.c:934
#31 0x011ab21e in GC_call_with_stack_base () from /usr/lib/libgc.so.1
#32 0x010fab7f in scm_i_with_guile_and_parent (parent=<optimized out>, 
data=0x17ffc40, func=0x109c600 <invoke_main_func>) at threads.c:949
#33 scm_with_guile (func=func@entry=0x109c600 <invoke_main_func>, 
data=data@entry=0x17ffc40) at threads.c:955
#34 0x0109c7c5 in scm_boot_guile (argc=argc@entry=1, argv=argv@entry=0x17ffcf8, 
main_func=main_func@entry=0x8048960 <inner_main>, closure=closure@entry=0x0)
    at init.c:321
#35 0x08048875 in main (argc=1, argv=0x17ffcf8) at guile.c:71
(gdb) continue 
Continuing.

Program terminated with signal SIGILL, Illegal instruction.
The program no longer exists.
(gdb) 

bubu@debian:~/devel/guile-2.0.7$ ./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 <http://gnu.org/licenses/gpl.html>
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:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from 
/home/bubu/devel/guile-2.0.7/libguile/.libs/lt-guile...done.
(gdb) r
Starting program: /home/bubu/devel/guile-2.0.7/libguile/.libs/lt-guile 
[New Thread 8757.5]

Program received signal SIGSEGV, Segmentation fault.
0x011ac1ad in GC_find_limit_with_bound () from /usr/lib/libgc.so.1
(gdb) continue
Continuing.
GNU Guile 2.0.7
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)> grrrrrrrr
[New Thread 8757.6]

Program received signal SIGUSR1, User defined signal 1.
0x013ed7cc in mach_msg_trap () at 
/usr/src/eglibc-2.13/build-tree/hurd-i386-libc/mach/mach_msg_trap.S:2
2       /usr/src/eglibc-2.13/build-tree/hurd-i386-libc/mach/mach_msg_trap.S: No 
such file or directory.
(gdb) bt
#0  0x013ed7cc in mach_msg_trap () at 
/usr/src/eglibc-2.13/build-tree/hurd-i386-libc/mach/mach_msg_trap.S:2
#1  0x013edfc9 in __mach_msg (msg=0x17fe040, option=3, send_size=48, 
rcv_size=32, rcv_name=133, timeout=0, notify=0) at msg.c:110
#2  0x015b1c4f in __msg_sig_post (process=140, signal=0, sigcode=0, refport=1) 
at /usr/src/eglibc-2.13/build-tree/hurd-i386-libc/hurd/RPC_msg_sig_post.c:143
#3  0x01408e3c in _hurd_raise_signal (ss=0x26008, signo=30, detail=0x17fe0b8) 
at hurd-raise.c:50
#4  0x013cc55a in pthread_kill (thread=3, sig=30) at 
../libpthread/sysdeps/hurd/pt-kill.c:49
#5  0x011b07ac in GC_suspend_all () from /usr/lib/libgc.so.1
#6  0x011b0830 in GC_stop_world () from /usr/lib/libgc.so.1
#7  0x011a0780 in GC_stopped_mark () from /usr/lib/libgc.so.1
#8  0x011a0eda in GC_try_to_collect_inner () from /usr/lib/libgc.so.1
#9  0x011a1a1c in GC_collect_or_expand () from /usr/lib/libgc.so.1
#10 0x011a1c2f in GC_allocobj () from /usr/lib/libgc.so.1
#11 0x011a651f in GC_generic_malloc_inner () from /usr/lib/libgc.so.1
#12 0x011a731b in GC_generic_malloc_many () from /usr/lib/libgc.so.1
#13 0x011af005 in GC_malloc () from /usr/lib/libgc.so.1
#14 0x01106eaf in scm_cell (cdr=<optimized out>, car=<optimized out>) at 
../libguile/gc.h:231
#15 vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d268c, nargs=0) at 
vm-i-system.c:203
#16 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x84dfa60, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#17 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x84dfa80) at 
vm.c:1052
#18 0x010a3360 in scm_primitive_load_path (args=0x84eaa08) at load.c:942
#19 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d2638, 
nargs=0) at vm-i-system.c:850
#20 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x846c1b0, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#21 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x846c1d0) at 
vm.c:1052
#22 0x010a3360 in scm_primitive_load_path (args=0x8476f90) at load.c:942
#23 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d24d4, 
nargs=0) at vm-i-system.c:850
#24 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x844aad0, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#25 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x844aaf0) at 
vm.c:1052
#26 0x010a3360 in scm_primitive_load_path (args=0x844e330) at load.c:942
#27 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d2370, 
nargs=1) at vm-i-system.c:850
#28 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8137930, 
argv=argv@entry=0x17ff780, nargs=nargs@entry=1) at vm.c:741
#29 0x0107be37 in scm_primitive_eval (exp=exp@entry=0x81c76c8) at eval.c:685
#30 0x0107beb0 in scm_eval (exp=0x81c76c8, 
module_or_state=module_or_state@entry=0x8184678) at eval.c:719
#31 0x010d3bb3 in scm_shell (argc=1, argv=0x17ffcf8) at script.c:441
#32 0x0109c63c in invoke_main_func (body_data=0x17ffc40) at init.c:338
#33 0x010710c0 in c_body (d=0x17ffb84) at continuations.c:511
#34 0x010fd094 in apply_catch_closure (clo=0x81f6ec0, args=0x304) at throw.c:146
#35 0x010d41ef in apply_1 (smob=0x81f6ec0, a=0x304) at smob.c:141
#36 0x01114ac7 in vm_regular_engine (vm=0x80ce4e0, program=0x0, argv=0x10d41c0, 
nargs=135077976) at vm-i-system.c:853
#37 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8165b70, 
argv=argv@entry=0x17ffa90, nargs=nargs@entry=4) at vm.c:741
#38 0x0107b834 in scm_call_4 (proc=0x8165b70, arg1=arg1@entry=0x404, 
arg2=arg2@entry=0x81f6ec0, arg3=arg3@entry=0x81f6eb0, 
arg4=arg4@entry=0x81f6ea0) at eval.c:507
#39 0x010fd496 in scm_catch_with_pre_unwind_handler (key=key@entry=0x404, 
thunk=thunk@entry=0x81f6ec0, handler=handler@entry=0x81f6eb0, 
    pre_unwind_handler=0x81f6ea0) at throw.c:86
#40 0x010fd67c in scm_c_catch (tag=tag@entry=0x404, body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=pre_unwind_handler_data@entry=0x81338d0) at throw.c:213
#41 0x010718f3 in scm_i_with_continuation_barrier (body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=0x81338d0) at continuations.c:449
#42 0x010719d6 in scm_c_with_continuation_barrier (func=0x109c600 
<invoke_main_func>, data=0x17ffc40) at continuations.c:545
#43 0x010fa95a in with_guile_trampoline (data=0x17ffc14) at threads.c:888
#44 with_gc_active (data=0x17ffc14, func=<optimized out>) at threads.c:255
#45 with_guile_and_parent (base=0x17ffbec, data=0x17ffc14) at threads.c:934
---Type <return> to continue, or q <return> to quit---
#46 0x011ab21e in GC_call_with_stack_base () from /usr/lib/libgc.so.1
#47 0x010fab7f in scm_i_with_guile_and_parent (parent=<optimized out>, 
data=0x17ffc40, func=0x109c600 <invoke_main_func>) at threads.c:949
#48 scm_with_guile (func=func@entry=0x109c600 <invoke_main_func>, 
data=data@entry=0x17ffc40) at threads.c:955
#49 0x0109c7c5 in scm_boot_guile (argc=argc@entry=1, argv=argv@entry=0x17ffcf8, 
main_func=main_func@entry=0x8048960 <inner_main>, closure=closure@entry=0x0)
    at init.c:321
#50 0x08048875 in main (argc=1, argv=0x17ffcf8) at guile.c:71
(gdb) continue
Continuing.

Program received signal SIGUSR2, User defined signal 2.
0x013ed7cc in mach_msg_trap () at 
/usr/src/eglibc-2.13/build-tree/hurd-i386-libc/mach/mach_msg_trap.S:2
2       in /usr/src/eglibc-2.13/build-tree/hurd-i386-libc/mach/mach_msg_trap.S
(gdb) bt
#0  0x013ed7cc in mach_msg_trap () at 
/usr/src/eglibc-2.13/build-tree/hurd-i386-libc/mach/mach_msg_trap.S:2
#1  0x013edfc9 in __mach_msg (msg=0x17fe090, option=3, send_size=48, 
rcv_size=32, rcv_name=133, timeout=0, notify=0) at msg.c:110
#2  0x015b1c4f in __msg_sig_post (process=140, signal=0, sigcode=0, refport=1) 
at /usr/src/eglibc-2.13/build-tree/hurd-i386-libc/hurd/RPC_msg_sig_post.c:143
#3  0x01408e3c in _hurd_raise_signal (ss=0x26008, signo=31, detail=0x17fe108) 
at hurd-raise.c:50
#4  0x013cc55a in pthread_kill (thread=3, sig=31) at 
../libpthread/sysdeps/hurd/pt-kill.c:49
#5  0x011b09d2 in GC_start_world () from /usr/lib/libgc.so.1
#6  0x011a087b in GC_stopped_mark () from /usr/lib/libgc.so.1
#7  0x011a0eda in GC_try_to_collect_inner () from /usr/lib/libgc.so.1
#8  0x011a1a1c in GC_collect_or_expand () from /usr/lib/libgc.so.1
#9  0x011a1c2f in GC_allocobj () from /usr/lib/libgc.so.1
#10 0x011a651f in GC_generic_malloc_inner () from /usr/lib/libgc.so.1
#11 0x011a731b in GC_generic_malloc_many () from /usr/lib/libgc.so.1
#12 0x011af005 in GC_malloc () from /usr/lib/libgc.so.1
#13 0x01106eaf in scm_cell (cdr=<optimized out>, car=<optimized out>) at 
../libguile/gc.h:231
#14 vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d268c, nargs=0) at 
vm-i-system.c:203
#15 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x84dfa60, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#16 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x84dfa80) at 
vm.c:1052
#17 0x010a3360 in scm_primitive_load_path (args=0x84eaa08) at load.c:942
#18 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d2638, 
nargs=0) at vm-i-system.c:850
#19 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x846c1b0, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#20 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x846c1d0) at 
vm.c:1052
#21 0x010a3360 in scm_primitive_load_path (args=0x8476f90) at load.c:942
#22 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d24d4, 
nargs=0) at vm-i-system.c:850
#23 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x844aad0, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#24 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x844aaf0) at 
vm.c:1052
#25 0x010a3360 in scm_primitive_load_path (args=0x844e330) at load.c:942
#26 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x0, argv=0x80d2370, 
nargs=1) at vm-i-system.c:850
#27 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8137930, 
argv=argv@entry=0x17ff780, nargs=nargs@entry=1) at vm.c:741
#28 0x0107be37 in scm_primitive_eval (exp=exp@entry=0x81c76c8) at eval.c:685
#29 0x0107beb0 in scm_eval (exp=0x81c76c8, 
module_or_state=module_or_state@entry=0x8184678) at eval.c:719
#30 0x010d3bb3 in scm_shell (argc=1, argv=0x17ffcf8) at script.c:441
#31 0x0109c63c in invoke_main_func (body_data=0x17ffc40) at init.c:338
#32 0x010710c0 in c_body (d=0x17ffb84) at continuations.c:511
#33 0x010fd094 in apply_catch_closure (clo=0x81f6ec0, args=0x304) at throw.c:146
#34 0x010d41ef in apply_1 (smob=0x81f6ec0, a=0x304) at smob.c:141
#35 0x01114ac7 in vm_regular_engine (vm=0x80ce4e0, program=0x0, argv=0x10d41c0, 
nargs=135077976) at vm-i-system.c:853
#36 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8165b70, 
argv=argv@entry=0x17ffa90, nargs=nargs@entry=4) at vm.c:741
#37 0x0107b834 in scm_call_4 (proc=0x8165b70, arg1=arg1@entry=0x404, 
arg2=arg2@entry=0x81f6ec0, arg3=arg3@entry=0x81f6eb0, 
arg4=arg4@entry=0x81f6ea0) at eval.c:507
#38 0x010fd496 in scm_catch_with_pre_unwind_handler (key=key@entry=0x404, 
thunk=thunk@entry=0x81f6ec0, handler=handler@entry=0x81f6eb0, 
    pre_unwind_handler=0x81f6ea0) at throw.c:86
#39 0x010fd67c in scm_c_catch (tag=tag@entry=0x404, body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=pre_unwind_handler_data@entry=0x81338d0) at throw.c:213
#40 0x010718f3 in scm_i_with_continuation_barrier (body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=0x81338d0) at continuations.c:449
#41 0x010719d6 in scm_c_with_continuation_barrier (func=0x109c600 
<invoke_main_func>, data=0x17ffc40) at continuations.c:545
#42 0x010fa95a in with_guile_trampoline (data=0x17ffc14) at threads.c:888
#43 with_gc_active (data=0x17ffc14, func=<optimized out>) at threads.c:255
#44 with_guile_and_parent (base=0x17ffbec, data=0x17ffc14) at threads.c:934
#45 0x011ab21e in GC_call_with_stack_base () from /usr/lib/libgc.so.1
---Type <return> to continue, or q <return> to quit---
#46 0x010fab7f in scm_i_with_guile_and_parent (parent=<optimized out>, 
data=0x17ffc40, func=0x109c600 <invoke_main_func>) at threads.c:949
#47 scm_with_guile (func=func@entry=0x109c600 <invoke_main_func>, 
data=data@entry=0x17ffc40) at threads.c:955
#48 0x0109c7c5 in scm_boot_guile (argc=argc@entry=1, argv=argv@entry=0x17ffcf8, 
main_func=main_func@entry=0x8048960 <inner_main>, closure=closure@entry=0x0)
    at init.c:321
#49 0x08048875 in main (argc=1, argv=0x17ffcf8) at guile.c:71
(gdb) continue 
Continuing.

Program received signal SIGILL, Illegal instruction.
0x01108288 in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, argv=0x3de879, 
nargs=0) at vm-i-loader.c:78
78        NEXT;
(gdb) bt
#0  0x01108288 in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x3de879, nargs=0) at vm-i-loader.c:78
#1  0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x84dfa60, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#2  0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x84dfa80) at 
vm.c:1052
#3  0x010a3360 in scm_primitive_load_path (args=0x84eaa08) at load.c:942
#4  0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x80d2638, nargs=0) at vm-i-system.c:850
#5  0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x846c1b0, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#6  0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x846c1d0) at 
vm.c:1052
#7  0x010a3360 in scm_primitive_load_path (args=0x8476f90) at load.c:942
#8  0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x80d24d4, nargs=0) at vm-i-system.c:850
#9  0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x844aad0, 
argv=argv@entry=0x0, nargs=nargs@entry=0) at vm.c:741
#10 0x0111731d in scm_load_compiled_with_vm (file=file@entry=0x844aaf0) at 
vm.c:1052
#11 0x010a3360 in scm_primitive_load_path (args=0x844e330) at load.c:942
#12 0x01109a7e in vm_debug_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x80d2370, nargs=1) at vm-i-system.c:850
#13 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8137930, 
argv=argv@entry=0x17ff780, nargs=nargs@entry=1) at vm.c:741
#14 0x0107be37 in scm_primitive_eval (exp=exp@entry=0x81c76c8) at eval.c:685
#15 0x0107beb0 in scm_eval (exp=0x81c76c8, 
module_or_state=module_or_state@entry=0x8184678) at eval.c:719
#16 0x010d3bb3 in scm_shell (argc=1, argv=0x17ffcf8) at script.c:441
#17 0x0109c63c in invoke_main_func (body_data=0x17ffc40) at init.c:338
#18 0x010710c0 in c_body (d=0x17ffb84) at continuations.c:511
#19 0x010fd094 in apply_catch_closure (clo=0x81f6ec0, args=0x304) at throw.c:146
#20 0x010d41ef in apply_1 (smob=0x81f6ec0, a=0x304) at smob.c:141
#21 0x01114ac7 in vm_regular_engine (vm=0x80ce4e0, program=0x80c9fc0, 
argv=0x10d41c0, nargs=135077976) at vm-i-system.c:853
#22 0x01116f2a in scm_c_vm_run (vm=0x80ce4e0, program=program@entry=0x8165b70, 
argv=argv@entry=0x17ffa90, nargs=nargs@entry=4) at vm.c:741
#23 0x0107b834 in scm_call_4 (proc=0x8165b70, arg1=arg1@entry=0x404, 
arg2=arg2@entry=0x81f6ec0, arg3=arg3@entry=0x81f6eb0, 
arg4=arg4@entry=0x81f6ea0) at eval.c:507
#24 0x010fd496 in scm_catch_with_pre_unwind_handler (key=key@entry=0x404, 
thunk=thunk@entry=0x81f6ec0, handler=handler@entry=0x81f6eb0, 
    pre_unwind_handler=0x81f6ea0) at throw.c:86
#25 0x010fd67c in scm_c_catch (tag=tag@entry=0x404, body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=pre_unwind_handler_data@entry=0x81338d0) at throw.c:213
#26 0x010718f3 in scm_i_with_continuation_barrier (body=body@entry=0x10710b0 
<c_body>, body_data=body_data@entry=0x17ffb84, 
    handler=handler@entry=0x1071540 <c_handler>, 
handler_data=handler_data@entry=0x17ffb84, 
    pre_unwind_handler=pre_unwind_handler@entry=0x1071200 <pre_unwind_handler>, 
pre_unwind_handler_data=0x81338d0) at continuations.c:449
#27 0x010719d6 in scm_c_with_continuation_barrier (func=0x109c600 
<invoke_main_func>, data=0x17ffc40) at continuations.c:545
#28 0x010fa95a in with_guile_trampoline (data=0x17ffc14) at threads.c:888
#29 with_gc_active (data=0x17ffc14, func=<optimized out>) at threads.c:255
#30 with_guile_and_parent (base=0x17ffbec, data=0x17ffc14) at threads.c:934
#31 0x011ab21e in GC_call_with_stack_base () from /usr/lib/libgc.so.1
#32 0x010fab7f in scm_i_with_guile_and_parent (parent=<optimized out>, 
data=0x17ffc40, func=0x109c600 <invoke_main_func>) at threads.c:949
#33 scm_with_guile (func=func@entry=0x109c600 <invoke_main_func>, 
data=data@entry=0x17ffc40) at threads.c:955
#34 0x0109c7c5 in scm_boot_guile (argc=argc@entry=1, argv=argv@entry=0x17ffcf8, 
main_func=main_func@entry=0x8048960 <inner_main>, closure=closure@entry=0x0)
    at init.c:321
#35 0x08048875 in main (argc=1, argv=0x17ffcf8) at guile.c:71
(gdb) continue 
Continuing.

Program terminated with signal SIGILL, Illegal instruction.
The program no longer exists.
(gdb) 

bubu@debian:~/devel/gc-7.2$ make install
make[1]: Entering directory `/home/bubu/devel/gc-7.2'
make[2]: Entering directory `/home/bubu/devel/gc-7.2'
test -z "/home/bubu/devel/libgc/lib" || /bin/mkdir -p 
"/home/bubu/devel/libgc/lib"
 /bin/bash ./libtool   --mode=install /usr/bin/install -c   libgc.la libcord.la 
'/home/bubu/devel/libgc/lib'
libtool: install: /usr/bin/install -c .libs/libgc.so.1.0.3 
/home/bubu/devel/libgc/lib/libgc.so.1.0.3
libtool: install: (cd /home/bubu/devel/libgc/lib && { ln -s -f libgc.so.1.0.3 
libgc.so.1 || { rm -f libgc.so.1 && ln -s libgc.so.1.0.3 libgc.so.1; }; })
libtool: install: (cd /home/bubu/devel/libgc/lib && { ln -s -f libgc.so.1.0.3 
libgc.so || { rm -f libgc.so && ln -s libgc.so.1.0.3 libgc.so; }; })
libtool: install: /usr/bin/install -c .libs/libgc.lai 
/home/bubu/devel/libgc/lib/libgc.la
libtool: install: error: cannot install `libcord.la' to a directory not ending 
in /usr/local/lib
make[2]: *** [install-libLTLIBRARIES] Error 1
make[2]: Leaving directory `/home/bubu/devel/gc-7.2'
make[1]: *** [install-am] Error 2
make[1]: Leaving directory `/home/bubu/devel/gc-7.2'
make: *** [install-recursive] Error 1
bubu@debian:~/devel/gc-7.2$

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