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Error Handling(错误处理 os can recover from disk read, device unavailable, transient write failures (操作系统可以恢复磁盘读,设备无效,暂时的失败) Most return an error number or code when lO request fails (当O失败时,大多数返回一个错误码) System error logs hold problem reports (系统日志记录了出错报告) Applied Operating System Concepts Silberschatz, Galvin, and Gagne @199912.15 Silberschatz, Galvin, and Gagne ©1999 Applied Operating System Concepts Error Handling(错误处理) • OS can recover from disk read, device unavailable, transient write failures (操作系统可以恢复磁盘读,设备无效,暂时的失败) • Most return an error number or code when I/O request fails (当I/O失败时,大多数返回一个错误码 ) • System error logs hold problem reports (系统日志记录了出错报告)
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