built by msys2 with gcc 10.2.0, usShell module crash and segment fault

[bbqz007]

MINGW64 ~
$ gcc --version
gcc.exe (Rev6, Built by MSYS2 project) 10.2.0

gdb usShell3

(gdb) set args -llibusShellService0d.dll
(gdb) r
Starting program: 
\tmp\github\CppOSGi\build10\bin\usShell3.exe -llibusShellService0d.dll
[New Thread 11684.0x15d8]
[New Thread 11684.0xb38]
[New Thread 11684.0x3a50]
Installing libusShellService0d.dll
[New Thread 11684.0xba4]

Thread 5 received signal SIGSEGV, Segmentation fault.
[Switching to Thread 11684.0xba4]
0x00007ffd65dc5117 in alloc_cellseg (sc=0x2ad7e1a45a0, n=3)
    at \tmp\github\CppOSGi\third_party\tinyscheme\scheme.c:596
596                   typeflag(p) = 0;
(gdb) l
591                  sc->cell_seg[--i] = p;
592              }
593              sc->fcells += CELL_SEGSIZE;
594              last = newp + CELL_SEGSIZE - 1;
595              for (p = newp; p <= last; p++) {
596                   typeflag(p) = 0;
597                   cdr(p) = p + 1;
598                   car(p) = sc->NIL;
599              }
600              /* insert new cells in address order on free list */
(gdb) bt
#0  0x00007ffd65dc5117 in alloc_cellseg (sc=0x2ad7e1a45a0, n=3)
    at \tmp\github\CppOSGi\third_party\tinyscheme\scheme.c:596
#1  0x00007ffd65dd22bc in scheme_init_custom_alloc (sc=0x2ad7e1a45a0, malloc=0x7ffd65de4180 <malloc>,
    free=0x7ffd65de41c8 <free>) at \tmp\github\CppOSGi\third_party\tinyscheme\scheme.c:4670
#2  0x00007ffd65dd2115 in scheme_init (sc=0x2ad7e1a45a0)
    at \tmp\github\CppOSGi\third_party\tinyscheme\scheme.c:4636
#3  0x00007ffd65dd2079 in scheme_init_new ()
    at \tmp\github\CppOSGi\third_party\tinyscheme\scheme.c:4616
#4  0x00007ffd65de5301 in cppmicroservices::ShellService::Impl::Impl (this=0x2ad7e1a4530)
    at \tmp\github\CppOSGi\shellservice\src\ShellService.cpp:281
#5  0x00007ffd65dc3028 in cppmicroservices::ShellService::ShellService (this=0x2ad7e186ce0)
    at \tmp\github\CppOSGi\shellservice\src\ShellService.cpp:320
#6  0x00007ffd65de60b4 in __gnu_cxx::new_allocator<cppmicroservices::ShellService>::construct<cppmicroservices::ShellService> (this=0xeb247fee6f, __p=0x2ad7e186ce0) at /msys64/mingw64/include/c++/10.2.0/ext/new_allocator.h:150
#7  0x00007ffd65ded3b0 in std::allocator_traits<std::allocator<cppmicroservices::ShellService> >::construct<cppmicroservices::ShellService> (__a=..., __p=0x2ad7e186ce0)
    at /msys64/mingw64/include/c++/10.2.0/bits/alloc_traits.h:512
#8  0x00007ffd65dee2cb in std::_Sp_counted_ptr_inplace<cppmicroservices::ShellService, std::allocator<cppmicroservices::ShellService>, (__gnu_cxx::_Lock_policy)2>::_Sp_counted_ptr_inplace<>(std::allocator<cppmicroservices::ShellService>)
    (this=0x2ad7e186cd0, __a=...) at /msys64/mingw64/include/c++/10.2.0/bits/shared_ptr_base.h:551
#9  0x00007ffd65dec35f in std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<cppmicroservices::ShellService, std::allocator<cppmicroservices::ShellService>>(cppmicroservices::ShellService*&, std::_Sp_alloc_shared_tag<std::allocator<cppmicroservices::ShellService> >) (this=0xeb247fefb8, __p=@0xeb247fefb0: 0x0, __a=...)
    at /msys64/mingw64/include/c++/10.2.0/bits/shared_ptr_base.h:682
#10 0x00007ffd65deb926 in std::__shared_ptr<cppmicroservices::ShellService, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<cppmicroservices::ShellService>>(std::_Sp_alloc_shared_tag<std::allocator<cppmicroservices::ShellService> >) (this=0xeb247fefb0, __tag=...) at /msys64/mingw64/include/c++/10.2.0/bits/shared_ptr_base.h:1371
#11 0x00007ffd65de9da0 in std::shared_ptr<cppmicroservices::ShellService>::shared_ptr<std::allocator<cppmicroservices::ShellService>>(std::_Sp_alloc_shared_tag<std::allocator<cppmicroservices::ShellService> >) (this=0xeb247fefb0,
--Type <RET> for more, q to quit, c to continue without paging--
    __tag=...) at /msys64/mingw64/include/c++/10.2.0/bits/shared_ptr.h:408
#12 0x00007ffd65df2bc0 in std::allocate_shared<cppmicroservices::ShellService, std::allocator<cppmicroservices::ShellService>>(std::allocator<cppmicroservices::ShellService> const&) (__a=...)
    at /msys64/mingw64/include/c++/10.2.0/bits/shared_ptr.h:860
#13 0x00007ffd65df252e in std::make_shared<cppmicroservices::ShellService> ()
    at /msys64/mingw64/include/c++/10.2.0/bits/shared_ptr.h:876
#14 0x00007ffd65de5555 in cppmicroservices::ShellActivator::Start (this=0x2ad7e189f30, context=...)
    at \tmp\github\CppOSGi\shellservice\src\ShellActivator.cpp:37
#15 0x00007ffd4d868fa9 in cppmicroservices::BundlePrivate::Start0 (this=0x2ad7e188b60)
    at \tmp\github\CppOSGi\framework\src\bundle\BundlePrivate.cpp:532
#16 0x00007ffd4d8737f2 in cppmicroservices::BundleThread::Run (this=0x2ad7e186850, fwCtx=0x2ad7e1a2630)
    at \tmp\github\CppOSGi\framework\src\bundle\BundleThread.cpp:134
#17 0x00007ffd4d9556ef in std::__invoke_impl<void, void (cppmicroservices::BundleThread::*)(cppmicroservices::CoreBundleContext*), cppmicroservices::BundleThread*, cppmicroservices::CoreBundleContext*> (__f=
    @0x2ad7e186be8: (void (cppmicroservices::BundleThread::*)(cppmicroservices::BundleThread * const, cppmicroservices::CoreBundleContext *)) 0x7ffd4d8733a0 <cppmicroservices::BundleThread::Run(cppmicroservices::CoreBundleContext*)>,
    __t=@0x2ad7e186be0: 0x2ad7e186850) at /msys64/mingw64/include/c++/10.2.0/bits/invoke.h:73
#18 0x00007ffd4d963b73 in std::__invoke<void (cppmicroservices::BundleThread::*)(cppmicroservices::CoreBundleContext*), cppmicroservices::BundleThread*, cppmicroservices::CoreBundleContext*> (__fn=
    @0x2ad7e186be8: (void (cppmicroservices::BundleThread::*)(cppmicroservices::BundleThread * const, cppmicroservices::CoreBundleContext *)) 0x7ffd4d8733a0 <cppmicroservices::BundleThread::Run(cppmicroservices::CoreBundleContext*)>)
    at /msys64/mingw64/include/c++/10.2.0/bits/invoke.h:95
#19 0x00007ffd4d92e0fe in std::thread::_Invoker<std::tuple<void (cppmicroservices::BundleThread::*)(cppmicroservices::CoreBundleContext*), cppmicroservices::BundleThread*, cppmicroservices::CoreBundleContext*> >::_M_invoke<0ull, 1ull, 2ull> (this=0x2ad7e186bd8) at /msys64/mingw64/include/c++/10.2.0/thread:264
#20 0x00007ffd4d92e127 in std::thread::_Invoker<std::tuple<void (cppmicroservices::BundleThread::*)(cppmicroservices::CoreBundleContext*), cppmicroservices::BundleThread*, cppmicroservices::CoreBundleContext*> >::operator() (
    this=0x2ad7e186bd8) at /msys64/mingw64/include/c++/10.2.0/thread:271
#21 0x00007ffd4d92dd0c in std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (cppmicroservices::BundleThrea--Type <RET> for more, q to quit, c to continue without paging--q
Quit
(gdb) p p
$1 = (pointer) 0x7e1a5660
(gdb) x /4b p
0x7e1a5660:     Cannot access memory at address 0x7e1a5660
(gdb) p newp
$2 = (pointer) 0x7e1a5660
(gdb) p *sc
$3 = {malloc = 0x7ffd65de4180 <malloc>, free = 0x7ffd65de41c8 <free>, retcode = -1163005939, tracing = -1163005939,
  alloc_seg = {
    0x2ad7e1a5650 "\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r", <incomplete sequence \272>...,
    0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
    0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
    0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
    0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
    0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
    0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
    0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
    0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
    0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>}, cell_seg = {0x7e1a5660,
    0xbaadf00dbaadf00d, 0xbaadf00dbaadf00d, 0xbaadf00dbaadf00d, 0xbaadf00dbaadf00d, 0xbaadf00dbaadf00d,
    0xbaadf00dbaadf00d, 0xbaadf00dbaadf00d, 0xbaadf00dbaadf00d, 0xbaadf00dbaadf00d}, last_cell_seg = 0,
  args = 0xbaadf00dbaadf00d, envir = 0xbaadf00dbaadf00d, code = 0xbaadf00dbaadf00d, dump = 0xbaadf00dbaadf00d,
  interactive_repl = 0, _sink = {_flag = 3131961357, _object = {_string = {
        _svalue = 0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
        _length = -1163005939}, _number = {is_fixnum = 13 '\r', value = {ivalue = -1163005939,
          rvalue = -4.8366978272229995e-26}}, _port = 0xbaadf00dbaadf00d, _ff = 0xbaadf00dbaadf00d, _cons = {
        _car = 0xbaadf00dbaadf00d, _cdr = 0xbaadf00dbaadf00d}}}, sink = 0x2ad7e1a4688, _NIL = {_flag = 3131961357,
    _object = {_string = {_svalue = 0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
        _length = -1163005939}, _number = {is_fixnum = 13 '\r', value = {ivalue = -1163005939,
          rvalue = -4.8366978272229995e-26}}, _port = 0xbaadf00dbaadf00d, _ff = 0xbaadf00dbaadf00d, _cons = {
        _car = 0xbaadf00dbaadf00d, _cdr = 0xbaadf00dbaadf00d}}}, NIL = 0x2ad7e1a46a8, _HASHT = {_flag = 3131961357,
    _object = {_string = {_svalue = 0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
        _length = -1163005939}, _number = {is_fixnum = 13 '\r', value = {ivalue = -1163005939,
--Type <RET> for more, q to quit, c to continue without paging--
          rvalue = -4.8366978272229995e-26}}, _port = 0xbaadf00dbaadf00d, _ff = 0xbaadf00dbaadf00d, _cons = {
        _car = 0xbaadf00dbaadf00d, _cdr = 0xbaadf00dbaadf00d}}}, T = 0x2ad7e1a46c8, _HASHF = {_flag = 3131961357,
    _object = {_string = {_svalue = 0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
        _length = -1163005939}, _number = {is_fixnum = 13 '\r', value = {ivalue = -1163005939,
          rvalue = -4.8366978272229995e-26}}, _port = 0xbaadf00dbaadf00d, _ff = 0xbaadf00dbaadf00d, _cons = {
        _car = 0xbaadf00dbaadf00d, _cdr = 0xbaadf00dbaadf00d}}}, F = 0x2ad7e1a46e8, _EOF_OBJ = {_flag = 3131961357,
    _object = {_string = {_svalue = 0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
        _length = -1163005939}, _number = {is_fixnum = 13 '\r', value = {ivalue = -1163005939,
          rvalue = -4.8366978272229995e-26}}, _port = 0xbaadf00dbaadf00d, _ff = 0xbaadf00dbaadf00d, _cons = {
        _car = 0xbaadf00dbaadf00d, _cdr = 0xbaadf00dbaadf00d}}}, EOF_OBJ = 0x2ad7e1a4708,
  oblist = 0xbaadf00dbaadf00d, global_env = 0xbaadf00dbaadf00d, c_nest = 0xbaadf00dbaadf00d,
  LAMBDA = 0xbaadf00dbaadf00d, QUOTE = 0xbaadf00dbaadf00d, QQUOTE = 0xbaadf00dbaadf00d, UNQUOTE = 0xbaadf00dbaadf00d,
  UNQUOTESP = 0xbaadf00dbaadf00d, FEED_TO = 0xbaadf00dbaadf00d, COLON_HOOK = 0xbaadf00dbaadf00d,
  ERROR_HOOK = 0xbaadf00dbaadf00d, SHARP_HOOK = 0xbaadf00dbaadf00d, COMPILE_HOOK = 0xbaadf00dbaadf00d,
  free_cell = 0x2ad7e1a46a8, fcells = 5000, inport = 0x2ad7e1a46a8, outport = 0x2ad7e1a46a8,
  save_inport = 0x2ad7e1a46a8, loadport = 0x2ad7e1a46a8, load_stack = {{kind = 13 '\r', rep = {stdio = {
          file = 0xbaadf00dbaadf00d, closeit = -1163005939, curr_line = -1163005939,
          filename = 0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>}, string = {
          start = 0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
          past_the_end = 0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>,
          curr = 0xbaadf00dbaadf00d <error: Cannot access memory at address 0xbaadf00dbaadf00d>}}} <repeats 64 times>}, nesting_stack = {-1163005939 <repeats 64 times>}, file_i = -1163005939, nesting = 0, gc_verbose = 13 '\r',
  no_memory = 0 '\000',
  linebuff = "\255\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r"...,
  strbuff = "\255\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r--Type <RET> for more, q to quit, c to continue without paging--
\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272\r\272", <incomplete sequence \360>, tmpfp = 0xbaadf00dbaadf00d,
  tok = -1163005939, print_flag = -1163005939, value = 0xbaadf00dbaadf00d, op = -1163005939,
  ext_data = 0xbaadf00dbaadf00d, gensym_cnt = 0, vptr = 0x7ffd65df68c0 <vtbl>, dump_base = 0xbaadf00dbaadf00d,
  dump_size = -1163005939}

[bbqz007]

i try two releases, 3.4.0 and 3.6.0. they are in the same problem. the msys2 has gcc 10.2.0 as default.

and when i try them on centos8, using gcc 8.2.0 and gcc-toolset-10, they are fine.

the two cases above are building 64-bit.

[bbqz007]

when i come to msys2 with gcc 10.2.0 32-bit, there is no problem.

i have no idea why msys2 with mingw64 build the modules would crash.

[achristoforides]

Hi @bbqz007 , thank you for taking the time to report this issue! I will try to reproduce the issue you are experiencing and if I have any questions, I will reach out.