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AI-generatedEINTR Not Restarting Some Blocking Calls Even With SA_RESTART
Background In Linux, blocking I/O system calls can be interrupted by signals. The kernel returns -EINTR unless the signal handler is installed with the SA_RESTART flag, which instructs the kernel to automatically restart certain system calls. Observed Symptom When a process sets a timeout via alarm() and relies on SA_RESTART , some calls such as read() , wri