There is a global lock that must be acquired any time an extension request is used, which protects a clause which only needs protection at the initialization of the extension in a process. We should come up with a lockless design for this logic.
Ian Osgood, Do you still experience this issue with newer soft ? Please check the status of your issue. Or close this bug.
Yes, that lock is still there six years later, as you can plainly see. :) Neither Jamey nor I are active on the project, so this enhancement should be assigned to someone else. Who is the current XCB project lead? I nominate you, since you seem to care about this.
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