The following two TestWebKitAPI.IPCTestingAPI are constant timeouts on Catalina, BigSur, and iOS14-Simulator Debug: TestWebKitAPI.IPCTestingAPI.CanReceiveIPCSemaphore TestWebKitAPI.IPCTestingAPI.CanReceiveSharedMemory HISTORY: https://results.webkit.org/?suite=api-tests&suite=api-tests&test=TestWebKitAPI.IPCTestingAPI.CanReceiveIPCSemaphore&test=TestWebKitAPI.IPCTestingAPI.CanReceiveSharedMemory Both APIs have the same history. It appears they both started timing out constantly at r277313. Working on reproduction steps.
I have reproduced the timeout at BigSur Debug ToT using the following test: run-api-tests TestWebKitAPI.IPCTestingAPI.CanReceiveIPCSemaphore I was also able to verify the regression point. The timeouts did occur at r277313, but did not occur at r277312. So it appears r277313 caused the regression.
<rdar://problem/78025515>
Ok, we just need to update the names of some messages from ImageData to PixelBuffer. These tests are really error prone and will likely see more of this kind of failure if we don’t have a more robust way to catch these failures at compile time or at least better errors when the signatures don’t match at runtime.
Created attachment 428648 [details] Patch
Committed r277506 (237737@main): <https://commits.webkit.org/237737@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 428648 [details].