[Caml-list] ocamlrun: Segmentation fault (core dumped)

[Caml-list] ocamlrun: Segmentation fault (core dumped)

[Emmanuel Dieul]

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Re: [Caml-list] ocamlrun: Segmentation fault (core dumped)

[Adrien]

On 15/10/2011, Emmanuel Dieul <emmanuel.dieul@free.fr> wrote:
> Hi all,
>
> I'm developing a little game using ocaml and lablgtk2. During the game
> (under cygwin), I've got a segmentation fault for ocamlrun :
>>
>>
>> [emmanuel@localhost ~/]$ cat ocamlrun.exe.stackdump
>> Exception: STATUS_ACCESS_VIOLATION at eip=610E73DA
>> eax=1BDCCE64 ebx=01E1C530 ecx=75A50C48 edx=00000000 esi=01E1C588
>> edi=1BB8CE64
>> ebp=1BB8CD98 esp=1BB8CD60
>> program=L:\programmation\cygwin\bin\ocamlrun.exe, pid 6260, thread unknown
>> (0x1CBC)
>> cs=0023 ds=002B es=002B fs=0053 gs=002B ss=002B
>> Stack trace:
>> Frame     Function  Args
>> 1BB8CD98  610E73DA  (01E1C530, 1BB8CDD4, 610E73A0, 01E1C530)
>> End of stack trace
>> [emmanuel@localhost ~/]$ ocaml -version
>> The Objective Caml toplevel, version 3.12.0
>
>
> Is there a way to know if the problem comes from ocamlrun or if it comes
> from the (labl)gtk libraries for windows?

Hi,

Do you have a backtrace?
You could run your application under gdb and use its "backtrace"
function to get one. It should show quite quickly whether the issue is
from lablgtk, gtk or something else.

Regards,
Adrien Nader

Re: [Caml-list] ocamlrun: Segmentation fault (core dumped)

[Emmanuel Dieul]

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Re: [Caml-list] ocamlrun: Segmentation fault (core dumped)

[ygrek]

On Mon, 17 Oct 2011 18:32:53 +0200
Emmanuel Dieul <emmanuel.dieul@free.fr> wrote:

> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 6724.0x14ac]
> 0x610e73da in pthread::thread_init_wrapper(void*) () from /cygdrive/l/programmation/cygwin/bin/cygwin1.dll
> (gdb) backtrace
> #0  0x610e73da in pthread::thread_init_wrapper(void*) () from /cygdrive/l/programmation/cygwin/bin/cygwin1.dll
> #1  0x762b2ad6 in OutputDebugStringA () from /cygdrive/c/Windows/syswow64/KERNELBASE.dll
> #2  0x40010006 in ?? ()
> #3  0x00000000 in ?? ()
> (gdb)
> So, it seems cygwin is in trouble with my program... Damn !

OutputDebugStringA means there should be some useful info.
Run it under windbg to see the message.
Also look into system event logs.

-- 
 ygrek
 http://ygrek.org.ua

Re: [Caml-list] ocamlrun: Segmentation fault (core dumped)

[Emmanuel Dieul]

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