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physical memory. The default is still 2x physical memory. The nominal calculation is used to back-off swap auto-allocation ('A'uto command) when the disk is not large enough to accomodate all filesystem auto-defaults. This gives other partitions (like /usr) more priority over swap on smaller disks. This should help solve reported auto-sizing failures on machines with small hard drives and huge amounts of memory. For example, a machine with 2G of disk and 4G of memory will fail to auto-size without this fix. MFC after: 3 days