859593 - [Camera] ###!!! ASSERTION: QueryInterface needed: 'query_result.get() == mRawPtr', file ../../../dist/include/nsCOMPtr.h, line 505

Status: RESOLVED INCOMPLETE

(Core :: DOM: Device Interfaces, defect)

Description

[David Chan [:dchan]]

I get the following assertion when testing navigator.mozCameras on a linux x64 build. The test adds the camera permission then accesses the mozCameras object

Rest of the call stack

77 ^G###!!! ASSERTION: QueryInterface needed: 'query_result.get() == mRawPtr',file ../../../dist/include/nsCOMPtr.h, line 505
 78 nsObserverService::RemoveObserver(nsIObserver*, char const*) (/home/dchan/mozilla-central/xpcom/ds/nsObserverService.cpp:132)
 79 ~nsDOMCameraManager (/home/dchan/mozilla-central/dom/camera/DOMCameraManager.cpp:71)
 80 operator delete (/home/dchan/mozilla-central/obj-x86_64-unknown-linux-gnu/dom/camera/../../dist/include/mozilla/mozalloc.h:225)
 81 DoDeferredRelease<nsISupports*> (/home/dchan/mozilla-central/js/xpconnect/src/XPCJSRuntime.cpp:613)
 82 ~AutoPhase (/home/dchan/mozilla-central/js/src/gc/Statistics.h:206)
 83 nsXREDirProvider::DoShutdown() (/home/dchan/mozilla-central/toolkit/xre/nsXREDirProvider.cpp:869)
 84 ~ScopedXPCOMStartup (/home/dchan/mozilla-central/toolkit/xre/nsAppRunner.cpp:1118)
 85 operator delete (/home/dchan/mozilla-central/obj-x86_64-unknown-linux-gnu/to    olkit/xre/../../dist/include/mozilla/mozalloc.h:225)
 86 XRE_main (/home/dchan/mozilla-central/toolkit/xre/nsAppRunner.cpp:4152)
 87 do_main (/home/dchan/mozilla-central/browser/app/nsBrowserApp.cpp:273)
 88 main (/home/dchan/mozilla-central/browser/app/nsBrowserApp.cpp:585)
 89 __libc_start_main+0x000000ED  (/lib/x86_64-linux-gnu/libc.so.6)
 90 _start (/home/dchan/mozilla-central/obj-x86_64-unknown-linux-gnu/dist/bin/firefox-bin)

Comment 1

[David Chan [:dchan]]

Attachment: camera assertion test case

The mochitest will pass, but generate an assertion after completion / closing the test window

Comment 2

[Alex Keybl [:akeybl]]

Tracking since this impacts the desktop build, but this is not a blocker for phones.

Comment 3

[Geo Mealer [:geo] -- This account is inactive after 2015-07-07]

I'm not sure this doesn't also impact phones (not enough info) but jsmith tells me that since Camera's not generally available to applications we likely wouldn't block on this anyway.

Comment 4

[Kyle Machulis [:qdot] [:kmachulis] (INACTIVE)]

FxOS/Gonk has been removed from the codebase. Mass-invalidating FxOS related Device Interface bugs to clean up the component. 

If I incorrectly invalidated something, please let me know.

Comment 5

[Firefox Bug Husbandry Bot]

Bulk correction of resolution of B2G bugs to INCOMPLETE.