发明名称 Information processing apparatus that detects startup error, method of controlling the same, and storage medium
摘要 An information processing apparatus which includes at least two controllers and is capable of positively detecting a startup error. Memory devices are connected to the controllers, respectively. A CPU of each controller accesses the memory device connected to the other controller via a bus bridge, identifies a startup stage to which the startup process has proceeded during the start of the self-controller, writes the identified startup stage as startup information into the memory device connected to the other controller, and detects whether or not an abnormality occurs during the startup of the other controller with reference to the startup information written into the memory device connected to the self-controller.
申请公布号 US9075752(B2) 申请公布日期 2015.07.07
申请号 US201213461990 申请日期 2012.05.02
申请人 CANON KABUSHIKI KAISHA 发明人 Hamaguchi Jun
分类号 G06F11/00;G06F11/14;G06F1/00;G06F11/07 主分类号 G06F11/00
代理机构 Rossi, Kimms & McDowell LLP 代理人 Rossi, Kimms & McDowell LLP
主权项 1. An information processing apparatus that includes at least two controllers, each of which shares job processing, comprising: memory devices which are connected to the controllers, respectively; and an access unit for accessing from one of the controllers to one of said memory devices which is connected to the other of the controllers, wherein each of the at least two controllers comprises an identification unit, a writing unit, and an abnormality detection unit, the identification unit of one of the at least two controllers identifies a startup stage to which the startup process has proceeded during the startup of the one of the at least two controllers; the writing unit of the one of the at least two controllers writes startup stage identified by the identification unit as startup information into said memory device connected to the other of the at least two controllers by said access unit; and the abnormality detection unit of the one of the at least two controllers detects whether or not an abnormality has halted the startup of the other of the at least two controllers with reference to the startup information written into said memory device connected to the one of the at least two controllers.
地址 JP
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