Sohu Tech Products
Jan 8, 2020 · Mobile Development
Investigation of iOS App Startup Crash Caused by UIPasteboard Access and OpenUDID
The article investigates a sporadic iOS app startup timeout where the process is killed by the system, analyzes crash logs showing a SIGKILL (0x8badf00d) watchdog termination, traces the issue to excessive UIPasteboard calls made by OpenUDID in both main and background threads, validates the hypothesis with multi‑threaded tests, surveys SDK usage of OpenUDID, and proposes moving the identifier storage to the keychain to avoid clipboard‑induced hangs.
KeychainOpenUDIDPerformance
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