Invention Application
US20100082816A1 VIRTUALIZE, CHECKPOINT, AND RESTART POSIX IPC OBJECTS DURING CHECKPOINTING AND RESTARTING OF A SOFTWARE PARTITION
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在软件分区检查和重新启动过程中的虚拟化，检查点和重启POSIX IPC对象
- Patent Title: VIRTUALIZE, CHECKPOINT, AND RESTART POSIX IPC OBJECTS DURING CHECKPOINTING AND RESTARTING OF A SOFTWARE PARTITION
- Patent Title (中): 在软件分区检查和重新启动过程中的虚拟化，检查点和重启POSIX IPC对象
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Application No.: US12242218Application Date: 2008-09-30
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Publication No.: US20100082816A1Publication Date: 2010-04-01
- Inventor: Satish Narayan Kharat , Rajeev Mishra , Lance Warren Russell , Suresh Sabarathinam
- Applicant: Satish Narayan Kharat , Rajeev Mishra , Lance Warren Russell , Suresh Sabarathinam
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Main IPC: G06F9/50
- IPC: G06F9/50 ; G06F9/46 ; G06F15/173
Abstract:
A WPAR is migrated. Responsive to starting a checkpoint process, data and control information is collected and stored for IPC objects in the WPAR. Responsive to receiving a request to restart the WPAR, a type of IPC object is determined. Responsive to a determination that the IPC object is not an IPC shared memory object, a kernel handle that a process wants to be used for a new IPC object is registered. A request to create a new IPC object comprising a name uniquely associated with the IPC object and a WPAR identifier is issued. An entry that matches the name and WPAR identifier is identified and a virtual kernel handle is retrieved. The new IPC object is created. The virtual kernel handle is mapped to a real kernel handle and returned to the process. Data and control information is retrieved and overlaid onto the new IPC object.
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