[Webkit-unassigned] [Bug 264949] New: CHECKED_POINTER_DEBUG prints unreliable stacktrace information

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=264949

            Bug ID: 264949
           Summary: CHECKED_POINTER_DEBUG prints unreliable stacktrace
                    information
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Template Framework
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: csaavedra at igalia.com

Debugging a CheckedPtr crash by enabling CHECKED_POINTER_DEBUG prints a list of stacktraces for the dangling references of a CheckedPtr, but for some reason the number of stacktraces doesn't match the amount of reference leaks. In the bug I am debugging, m_count is 1, but there are 9 stacktraces. That makes debugging CheckedPtr tricky, as I am not sure which of those is the one that is really leaked.

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