ALTMEM(4)               NetBSD Kernel Interfaces Manual              ALTMEM(4)


NAME
altmem -- Alternative memory disk driver
SYNOPSIS
altmem* at altmemdev?
DESCRIPTION
The altmem driver enables use of physical memory that is normally inac- cessible by the machine-dependent pmap(9) as a swap device. When an alternative memory disk device is present, this device is gener- ally preferred to hard disk-based swap space. See the swapctl(8) and fstab(5) man pages for instructions on how to assign priorities to swap devices.
FILES
/dev/altmem?? block mode alternative memory disk devices. /dev/raltmem?? raw mode alternative memory disk devices.
SEE ALSO
md(4), fstab(5), swapctl(8)
HISTORY
The altmem device driver appeared in NetBSD 6.0.
AUTHORS
Jared D. McNeill <jmcneill@NetBSD.org> NetBSD 8.1 March 11, 2009 NetBSD 8.1

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