[Webkit-unassigned] [Bug 64411] New: ASSERT(isMainThread()) triggered in StorageTracker::deleteOrigin()

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=64411

           Summary: ASSERT(isMainThread()) triggered in
                    StorageTracker::deleteOrigin()
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: psolanki at apple.com


I just ran into this assert. WebKit was loading a twitter page and I quit it. It asserted when terminating.

ASSERTION FAILED: isMainThread()
/Volumes/Data/psolanki/sources/external/WebKit.git/Source/WebCore/storage/StorageTracker.cpp(416) : void WebCore::StorageTracker::deleteOrigin(WebCore::SecurityOrigin *)
1   WebCore::StorageTracker::deleteOrigin(WebCore::SecurityOrigin*)
2   WebCore::StorageTracker::deleteOrigin(WTF::String const&)
3   WebCore::StorageAreaSync::deleteEmptyDatabase()
4   WebCore::LocalStorageTask::performTask()
5   WebCore::LocalStorageThread::threadEntryPoint()
6   WebCore::LocalStorageThread::threadEntryPointCallback(void*)
7   WTF::threadEntryPoint(void*)
8   _pthread_start
9   thread_start


Looking at the code, StorageAreaSync::deleteEmptyDatabase() asserts that it is not on the main thread. But then it calls deleteOrigin() that wants to be on the main thread.

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