[Webkit-unassigned] [Bug 260690] GPU process crashes don't interrupt waiting Semaphores

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=260690

--- Comment #1 from Matt Woodrow <mattwoodrow at apple.com> ---
For the case where we're waiting on the Semaphore on a background thread (normal painting), we could forward the 'GPU disconnected' message to each RemoteImageBufferProxy and manually notify the Semaphores.

We might need a way to get notifications on a background thread (register with IPC::Connection for a notification from the IPC thread?), which we then use to invalidate Semaphore (by notifying them, and marking them as invalid).

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