On Wed, Jan 30, 2013 at 12:45 AM, Mohamed HAMZAOUI <requin...@gmail.com> wrote:
> Now I use libusbx library static in debug mode (i just have changed
> /MTd to /MDd in compiling parameter).
>
> more information about the bug : there is a corruption in memory
> because the dev handle address are wrong 0x4f8 and this is the cause
> of crash. the io_result value's 0x3e4 !
>
> ************ the debug state of transfer parameter in
> windows_transfer_callback at crash************
> - transfer 0x024aec64 {dev_handle=0x000004f8 flags=0x00 endpoint=0x00
> ...} libusb_transfer *
> + dev_handle 0x000004f8 {lock=??? claimed_interfaces=??? list={...}
> ...} libusb_device_handle *
> flags 0x00 unsigned char
> endpoint 0x00 unsigned char
> type 0x00 unsigned char
> timeout 0x00000000 unsigned int
> status LIBUSB_TRANSFER_COMPLETED libusb_transfer_status
> length 0x000004fc int
> actual_length 0x00000001 int
> callback 0x00000500 void (libusb_transfer *)*
> user_data 0x024aec80 void *
> + buffer 0x024aec80 "€ìJ €ìJ H2 H2 ýýýý" unsigned char *
> num_iso_packets 0x0b324890 int
> iso_packet_desc 0x024aec8c {length=0x0b324890 actual_length=0xfdfdfdfd
> status=LIBUSB_TRANSFER_COMPLETED } libusb_iso_packet_descriptor [0]
> *****************************************************************************************************************
Hmm, why are there isochronous related thingy here?
> there are many -1 error when handling transfer before the crash and
Could this be related to noise or things like that? What if you change
to use another PC and use a cleaner power supply?
What happen to your device after the crash? Does the device
go to an unstable state and only a reset will get it back? If the
device firmware hangs due to noise, it could cause transfer to
fail. The crash may due to some race condition in your pthread-win32
codes then.
> the last part of log's :
> libusbx: error [windows_transfer_callback] detected I/O error 996:
> [996] Overlapped I/O event is not in a signaled state.
> OUT ERROR 1 AT COMPLETION_EP_OUT_CB <<------- my log
> libusbx: warning [usbi_poll] invalid fd
> libusbx: error [handle_events] poll failed -1 err=9
>
> event_handler_thread : libusb_handle_events ret -1
>>>>>crash :'( <<<<
>
--
Xiaofan
------------------------------------------------------------------------------
Everyone hates slow websites. So do we.
Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
http://p.sf.net/sfu/appdyn_d2d_jan
_______________________________________________
libusbx-devel mailing list
libusbx-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/libusbx-devel
