Ok, can you get me a stack trace as well. I have an idea where the crash might
be but I need to stack trace to be sure. Please get a stack trace for libusbx
compiled with -g3 so I can see line numbers.
-Nathan
On Jul 16, 2013, at 1:56 PM, Lilk <notificati...@github.com> wrote:
> After upgrading from 1.0.15 to 1.0.16 my application crashes in libusb io.c,
> line 1534
> (int usbi_handle_transfer_completion(struct usbi_transfer *itransfer,
> enum libusb_transfer_status status)) when unplugging a device with active
> transfers. (incoming endpoints that is waiting for interrupt transfers from
> device).
> Unplugging did function properly in 1.0.15.
>
> The crash is a BAD ACCESS, the inferior stopped because it received a signal
> from the operating system.
>
> Below you will find an excerpt of variable values on the stack when crash
> occurs, please note that status != transfer->status (idk if this is
> important).
>
> Locals
> ctx @0x102136c10 libusb_context
> ctrl_pipe [2] int [2]
> debug 2 int
> debug_fixed 0 int
> event_handler_active 1 int
> event_waiters_cond pthread_cond_t
> event_waiters_lock pthread_mutex_t
> events_lock pthread_mutex_t
> fd_added_cb 0 libusb_pollfd_added_cb
> fd_cb_user_data 0x0 void *
> fd_removed_cb 0 libusb_pollfd_removed_cb
> flying_transfers list_head
> flying_transfers_lock pthread_mutex_t
> hotplug_cbs list_head
> hotplug_cbs_lock pthread_mutex_t
> hotplug_pipe [2] int [2]
> list list_head
> open_devs list_head
> open_devs_lock pthread_mutex_t
> pollfd_modify 0 unsigned int
> pollfd_modify_lock pthread_mutex_t
> pollfds list_head
> pollfds_lock pthread_mutex_t
> usb_devs list_head
> usb_devs_lock pthread_mutex_t
> flags 40 '(' uint8_t
> itransfer @0x102136d28 usbi_transfer
> flags 1 '\001' uint8_t
> list list_head
> next 0x0 list_head *
> prev 0x206000000000 list_head *
> lock pthread_mutex_t
> __opaque [56] char [56]
> __sig 4329794884 long
> num_iso_packets 1297437784 int
> timeout timeval
> tv_sec 27111757724013315 __darwin_time_t
> tv_usec 953444 __darwin_suseconds_t
> transferred 34827584 int
> status LIBUSB_TRANSFER_COMPLETED enum libusb_transfer_status
> transfer @0x109b84700 libusb_transfer
> actual_length 0 int
> buffer @0x102408230 "" unsigned char *.
> *buffer 0 '\0' unsigned char
> callback 0x10000ec46
> <UsbWorker::handle_transfer(libusb_transfer*)> libusb_transfer_cb_fn
> dev_handle @0x10408d600 libusb_device_handle *.
> auto_detach_kernel_driver 0 int
> claimed_interfaces 1 unsigned long
> dev @0x1014d0840 libusb_device *.
> attached 0 int
> bus_number 20 '\024' uint8_t
> ctx 0x102136c10 libusb_context *
> device_address 24 '\030' uint8_t
> device_descriptor libusb_device_descriptor
> list list_head
> lock pthread_mutex_t
> num_configurations 1 '\001' uint8_t
> os_priv [-1] unsigned char [0]
> parent_dev 0x10213d4a0 libusb_device *
> port_number 1 '\001' uint8_t
> refcnt 1 int
> session_data 89433533131011 unsigned long
> speed LIBUSB_SPEED_FULL enum libusb_speed
> list list_head
> next 0x102136c70 list_head *
> prev 0x102136c70 list_head *
> lock pthread_mutex_t
> __opaque [56] char [56]
> __sig 1297437784 long
> os_priv [-1] unsigned char [0]
> endpoint 131 unsigned char
> flags 0 '\0' uint8_t
> iso_packet_desc [-1] libusb_iso_packet_descriptor [0]
> length 64 int
> num_iso_packets 0 int
> status LIBUSB_TRANSFER_NO_DEVICE enum libusb_transfer_status
> timeout 0 unsigned int
> type 3 unsigned char
> user_data @0x102408170 void *.
> *user_data 0 void
> Inspector
> Expressions
> list_del <not in scope>
> Return Value
> Tooltip
> —
> Reply to this email directly or view it on GitHub.
>
> ------------------------------------------------------------------------------
> See everything from the browser to the database with AppDynamics
> Get end-to-end visibility with application monitoring from AppDynamics
> Isolate bottlenecks and diagnose root cause in seconds.
> Start your free trial of AppDynamics Pro today!
> http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk_______________________________________________
> libusbx-devel mailing list
> libusbx-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/libusbx-devel
------------------------------------------------------------------------------
See everything from the browser to the database with AppDynamics
Get end-to-end visibility with application monitoring from AppDynamics
Isolate bottlenecks and diagnose root cause in seconds.
Start your free trial of AppDynamics Pro today!
http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk
_______________________________________________
libusbx-devel mailing list
libusbx-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/libusbx-devel
