Re: slib and scm_shell() conflicts

[William Xu]

William Xu <address@hidden> writes:

> Hi,
>
> I checked out a recent guile repo days ago. It seems there're some
> conflictions between slib and scm_shell() function.
>
> Basically, when i try to load slib(i.e., guile.init), and invoke
> scm_shell() thereafter, then the program will block there. `top' shows
> the program is consuming lots of cpu time.
>
> I have attached a reproducible testcase, consisting of three files,
> foo.c, foo.scm and Makefile.
>
> System Info:
>
> - Guile 1.9.0
> - Debian Unstable GNU/Linux 2.6.14.3 #4, ppc
> - slib in cvs and debian repo
> - gcc (GCC) 4.0.3 20060104 (prerelease) (Debian 4.0.2-6)

Further investigation, see below.

But don't know what does "Corrupted DWARF expression." mean...

---------------------------------8<------------------------------------- 
5934      res = scm_primitive_eval_x (exp);
(gdb) 


Program received signal SIGINT, Interrupt.
0x0fd5c424 in pthread_getspecific () from /lib/tls/libpthread.so.0
(gdb) Single stepping until exit from function pthread_getspecific, 
which has no line number information.
deval (x=dwarf2_read_address: Corrupted DWARF expression.
) at eval.c:4635
4635      return proc;
(gdb) where
#0  deval (x=dwarf2_read_address: Corrupted DWARF expression.
) at eval.c:4635
#1  0x0ff38378 in deval (x=dwarf2_read_address: Corrupted DWARF expression.
) at eval.c:4201
#2  0x0ff36588 in scm_dapply (proc=0x300d9330, arg1=0x404, args=<value 
optimized out>) at eval.c:4990
#3  0x0ff34c74 in scm_apply (proc=0x300d9320, arg1=0x309f3b20, args=<value 
optimized out>) at eval.c:4798
#4  0x0ff35b24 in scm_call_2 (proc=0x300d9320, arg1=0x309f3b20, arg2=<value 
optimized out>) at eval.c:4665
#5  0x0ff35be4 in expand_user_macros (expr=0x300d9870, env=0x300d9830) at 
eval.c:693
#6  0x0ff34964 in m_expand_body (forms=0x3010df60, env=0x300fe318) at eval.c:749
#7  0x0ff38144 in deval (x=0x3008eb40, env=0x300fe318) at eval.c:3378
#8  0x0ff388ec in deval (x=dwarf2_read_address: Corrupted DWARF expression.
) at eval.c:3458
#9  0x0ff3d4a0 in scm_primitive_eval_x (exp=0x300fe8a8) at eval.c:5899
#10 0x0ff59724 in scm_primitive_load (filename=<value optimized out>) at 
load.c:109
#11 0x0ff372dc in deval (x=0x30121078, env=0x30121090) at eval.c:4221
#12 0x0ff25354 in scm_start_stack (id=0x300783c0, exp=0x3005cb00, 
env=0x30121090) at debug.c:454
#13 0x0ff25a5c in scm_m_start_stack (exp=<value optimized out>, env=0x30121090) 
at debug.c:470
#14 0x0ff36398 in scm_dapply (proc=<value optimized out>, arg1=0x3005cb38, 
args=<value optimized out>)
    at eval.c:4860
#15 0x0ff368d4 in deval (x=0x3005cb38, env=0x30121090) at eval.c:4048
#16 0x0ff36588 in scm_dapply (proc=0x300cf150, arg1=0x404, args=<value 
optimized out>) at eval.c:4990
#17 0x0ff34c74 in scm_apply (proc=0x301210e0, arg1=0x404, args=<value optimized 
out>) at eval.c:4798
#18 0x0ff3d588 in scm_call_0 (proc=0x10012008) at eval.c:4653
#19 0x0ff3fe10 in apply_thunk (thunk=0x10012008) at fluids.c:390
#20 0x0ff3fef4 in scm_c_with_fluid (fluid=0x1001aed0, value=0x4, 
cproc=0xff3fe00 <apply_thunk>, 
    cdata=0x301210e0) at fluids.c:453
#21 0x0ff3ff60 in scm_with_fluid (fluid=0x10012008, value=0x300d9870, 
thunk=0xff1ecd0) at fluids.c:440
#22 0x0ff392ac in deval (x=dwarf2_read_address: Corrupted DWARF expression.
) at eval.c:4470
#23 0x0ff36588 in scm_dapply (proc=0x300cf2d8, arg1=0x404, args=<value 
optimized out>) at eval.c:4990
#24 0x0ff34c74 in scm_apply (proc=0x301212a0, arg1=0x404, args=<value optimized 
out>) at eval.c:4798
#25 0x0ff3d588 in scm_call_0 (proc=0x10012008) at eval.c:4653
#26 0x0ff29e78 in scm_dynamic_wind (in_guard=0x30121258, thunk=0x301212a0, 
out_guard=0x30121230)
    at dynwind.c:107
#27 0x0ff392ac in deval (x=dwarf2_read_address: Corrupted DWARF expression.
) at eval.c:4470
#28 0x0ff36294 in scm_dapply (proc=0x30121380, arg1=<value optimized out>, 
args=<value optimized out>)
    at eval.c:4986
#29 0x0ff34c74 in scm_apply (proc=0x30121370, arg1=0x404, args=<value optimized 
out>) at eval.c:4798
#30 0x0ff3d588 in scm_call_0 (proc=0x10012008) at eval.c:4653
#31 0x0ffa19e4 in scm_body_thunk (body_data=<value optimized out>) at 
throw.c:356
#32 0x0ffa152c in scm_c_catch (tag=0x10015750, body=0xffa19d0 <scm_body_thunk>, 
body_data=0x7fa17c38, 
    handler=0xffa1a00 <scm_handle_by_proc>, handler_data=0x7fa17c48, 
pre_unwind_handler=0, 
    pre_unwind_handler_data=0x7fa17c4c) at throw.c:204
#33 0x0ffa1f60 in scm_catch_with_pre_unwind_handler (key=0x10012008, 
thunk=<value optimized out>, 
    handler=0x30121338, pre_unwind_handler=0x7fa170b4) at throw.c:583
#34 0x0ff51ab8 in scm_gsubr_apply (args=<value optimized out>) at gsubr.c:220
#35 0x0ff36418 in scm_dapply (proc=<value optimized out>, arg1=0x30065cf0, 
args=<value optimized out>)
    at eval.c:4908
#36 0x0ff3932c in deval (x=dwarf2_read_address: Corrupted DWARF expression.
) at eval.c:4393
#37 0x0ff398f8 in deval (x=dwarf2_read_address: Corrupted DWARF expression.
) at eval.c:3580
#38 0x0ff36588 in scm_dapply (proc=0x300d1af8, arg1=0x300d1af8, args=<value 
optimized out>) at eval.c:4990
#39 0x0ff34c74 in scm_apply (proc=0x30121938, arg1=0x404, args=<value optimized 
out>) at eval.c:4798
#40 0x0ff3d588 in scm_call_0 (proc=0x10012008) at eval.c:4653
#41 0x0ff29e78 in scm_dynamic_wind (in_guard=0x301218f0, thunk=0x30121938, 
out_guard=0x301218c8)
    at dynwind.c:107
#42 0x0ff392ac in deval (x=dwarf2_read_address: Corrupted DWARF expression.
) at eval.c:4470
#43 0x0ff3d4a0 in scm_primitive_eval_x (exp=0x30121a48) at eval.c:5899
#44 0x0ff59724 in scm_primitive_load (filename=<value optimized out>) at 
load.c:109
#45 0x0ff5a19c in scm_primitive_load_path (filename=0x30088790) at load.c:477
#46 0x0ff372dc in deval (x=0x30100e90, env=0x30100e78) at eval.c:4221
#47 0x0ff25354 in scm_start_stack (id=0x300783c0, exp=0x3005d4f8, 
env=0x30100e78) at debug.c:454
#48 0x0ff25a5c in scm_m_start_stack (exp=<value optimized out>, env=0x30100e78) 
at debug.c:470
#49 0x0ff36398 in scm_dapply (proc=<value optimized out>, arg1=0x3005d5d8, 
args=<value optimized out>)
    at eval.c:4860
#50 0x0ff368d4 in deval (x=0x3005d5d8, env=0x30100e78) at eval.c:4048
#51 0x0ff3d4a0 in scm_primitive_eval_x (exp=0x30100e38) at eval.c:5899
#52 0x0ff59724 in scm_primitive_load (filename=<value optimized out>) at 
load.c:109
#53 0x0ff3aed8 in ceval (x=0x104, env=0x30100a38) at eval.c:4221
#54 0x0ff3bec8 in ceval (x=0xffef788, env=0x300fe3b8) at eval.c:3357
#55 0x0ff3d4a0 in scm_primitive_eval_x (exp=0x300fe388) at eval.c:5899
#56 0x0ff3d540 in scm_eval_x (exp=0x300fe388, module_or_state=0x30088990) at 
eval.c:5934
#57 0x0ff7a73c in scm_shell (argc=1, argv=<value optimized out>) at script.c:738
#58 0x100015f8 in main_prog (closure=0x0, argc=1, argv=0x7fa189a4) at foo.c:11
#59 0x0ff56334 in invoke_main_func (body_data=<value optimized out>) at 
init.c:367
#60 0x0ff23aa8 in c_body (d=0x7fa186c8) at continuations.c:362
#61 0x0ffa152c in scm_c_catch (tag=0x104, body=0xff23a80 <c_body>, 
body_data=0x7fa186c8, 
    handler=0xff23ad0 <c_handler>, handler_data=0x7fa186c8, 
    pre_unwind_handler=0xffa1e04 <scm_handle_by_message_noexit>, 
pre_unwind_handler_data=0x0) at throw.c:204
#62 0x0ff23a30 in scm_i_with_continuation_barrier (body=0xff23a80 <c_body>, 
body_data=0x7fa186c8, 
    handler=0xff23ad0 <c_handler>, handler_data=0x3002dc00, 
    pre_unwind_handler=0xffa1e04 <scm_handle_by_message_noexit>, 
pre_unwind_handler_data=0x0)
    at continuations.c:338
#63 0x0ff23b38 in scm_c_with_continuation_barrier (func=<value optimized out>, 
data=<value optimized out>)
    at continuations.c:380
#64 0x0ff9ec20 in scm_i_with_guile_and_parent (func=0xff562e4 
<invoke_main_func>, data=0x7fa18728, 
    parent=<value optimized out>) at threads.c:645
#65 0x0ff9ec90 in scm_with_guile (func=0x10012008, data=0x300d9870) at 
threads.c:633
#66 0x0ff562c0 in scm_boot_guile (argc=<value optimized out>, argv=<value 
optimized out>, 
    main_func=0x300d9830, closure=0xff1ecd0) at init.c:350
#67 0x10001634 in main (argc=Cannot access memory at address 0x8
) at foo.c:19
(gdb) 
---------------------------------8<------------------------------------- 

-- 
William