3662的nvram故障！%Error opening nvram:/

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3662的nvram故障！%Error opening nvram:/ \r\n现象如：\r\n\r\n\r\n3662B#show start\r\nUsing 2599 out of 129016 bytes\r\n%Error opening nvram:/startup-config (Device or resource busy)\r\n\r\n\r\n\r\nR3662B#dir nvram:\r\nDirectory of nvram:/\r\n\r\n%Error opening nvram:/ (Device or resource busy)\r\n129016 bytes total (126417 bytes free)\r\n\r\n\r\nR3662B#show process cpu\r\nCPU utilization for five seconds: 1%/0%; one minute: 1%; five minutes: 1%\r\n\r\n\r\n第一个show start说我的nvram满了，而dir nvram： 看出还有126k的空间。\r\n\r\n现在怎么也无法保存配置，怎么一回事啊？