MEM(4,F) AIX Technical Reference MEM(4,F) ------------------------------------------------------------------------------- mem, kmem PURPOSE Provides memory and kernel memory images. DESCRIPTION The mem and kmem files are pseudo-device driver files. They are found in all AIX systems. These device drivers provide access to system memory. These files can be used, for example, to examine or to patch the system. The mem file is a special file that provides an image of the system's real (that is, physical) memory. Locating particular items in real memory requires locating page tables that map virtual addresses into real addresses. The file kmem is similar to mem, except it provides an image of the kernel's and the calling program's virtual memory. The seek address is usually a kernel virtual address. An invalid address used with mem or kmem causes an error to be returned. FILES /dev/mem /dev/kmem Processed November 7, 1990 MEM(4,F) 1