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Ticket Resolution Summary Owner Reporter
#9912 fixed Close button on 'About' dialog box is disabled (OSX) Dan Nye
Description

The close button on the 'About VirtualBox VM' dialog is disabled on Mac OS X (well, Snow Leopard, at least... I haven't yet upgraded to Lion, so cannot test on the newer OS).

I can understand the minimise & maximise buttons being disabled, as the dialog is a fixed size... but given it can be closed, why disable the most obvious way of doing so?

#18686 invalid CloseHandle() on WinUSB device hangs until device disconnect fenugrec
Description

Hi, I'm getting a strange USB issue on an XP VM, running in 6.08 on an artix-x64 linux box. (tried both the community and the Oracle-branded (6.0.8 r130520) versions, no change).

I'm writing software (attached is the most reduced test case) that uses winusb to talk to a "candlelight" USB-CAN interface, via this library : https://github.com/HubertD/cangaroo/tree/master/src/driver/CandleApiDriver/api

The "problematic" code is at https://github.com/HubertD/cangaroo/blob/master/src/driver/CandleApiDriver/api/candle.c#L351

Everything looks fine there : call WinUsb_Free(), then CloseHandle().

Note, I didn't write that library so I'm fairly confident it should work.

When I run my test code, it successfully opens the USB device but when I get to that CloseHandle(), the program hangs completely. If I "disconnect" the usb device (through the Devices->Usb->... menu), CloseHandle() completes normally and the program exits cleanly.

I have tried both with "USB 1.1" and "USB 2.0" modes, no change.

Attached is the VM log, and the minimal test harness that essentially just opens then closes the USB device.

I wasn't able to get a proper API trace to winusb.dll, but it goes something like this:

***** "manual" call trace
WinUsb_Initialize
WinUsb_QueryInterfaceSettings
WinUsb_QueryPipe
WinUsb_SetPipePolicy
(some more initial config)
Prepare 30 URBs with CreateEvent and WinUsb_ReadPipe()
CloseHandle on all events
WinUsb_Free
CloseHandle on device
*****

Any ideas to isolate the problem more ? I realize it's going to be difficult to reproduce the problem unless someone has access to that hardware, or a STM32F072 eval kit (firmware is open source and compatible).

Thanks, Chris

#8135 duplicate Closes without warning klzjr
Description

I am running Virtual Box 4.0.2 r69518 on Unbuntu 10.10 with guest host Windows XP. Virtual Box keeps closing unexpectedly without warning.

I have attached the VBox.log

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