Bug 92867

Summary:	UsbDk: Crash windows system (BSOD) when switching usb webcam
Product:	Spice	Reporter:	Victor Toso <bugzilla>
Component:	win32 usbclerk	Assignee:	Spice Bug List <spice-bugs>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	medium	CC:	bugzilla
Version:	unspecified
Hardware:	Other
OS:	Windows (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	dump n1

Description Victor Toso 2015-11-09 08:08:44 UTC

* This is not usbclerk bug but as we lack usbdk component here it is *

Client OS: Windws 7
Guest OS: Fedora 22
Remote-Viewer from: https://brewweb.devel.redhat.com/taskinfo?taskID=10067462
UsbDk: 1.0.7 from: spice-space.org

Basically you just need to have two usb webcam and then:
1.) Share Camera A with guest
2.) Disable sharing Camera A
3.) Share Cambera B with guest
4.) Disable sharing Camera B
5.) Go back to Step 1

* It took less then a minute to reproduce

I'll be attaching the kernel dumps

Comment 1 Victor Toso 2015-11-09 08:12:42 UTC

Created attachment 119495 [details]
dump n1

Comment 2 Victor Toso 2015-11-09 08:36:31 UTC

(In reply to Victor Toso from comment #1)
> Created attachment 119495 [details]
> dump n1

And the full kernel dump is 700+ MB. If one wants, I can try to provide it somehow ;)

Comment 3 Victor Toso 2015-11-27 07:45:20 UTC

Update: This should be solved in the next UsbDk release.

Comment 4 Dmitry Fleytman 2015-11-29 16:53:15 UTC

This issue is fixed at UsbDk 1.0.8 by commit http://cgit.freedesktop.org/spice/win32/usbdk/commit/?id=2316e20751ad0173c0eeca971fe6b3479cc995e4

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