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    SubjectRe: Shared memory quantity not being reflected by /proc/meminfo
    Allan Duncan writes:

    > Since the 2.4.x advent of shm as tmpfs or thereabouts,
    > /proc/meminfo shows shared memory as 0. It is in
    > reality not zero, and is being allocated, and shows
    > up in /proc/sysvipc/shm and /proc/sys/kernel/shmall
    > etc..
    > Neither 2.4.6-pre5 nor 2.4.5-ac17 have the correct
    > display.

    You misunderstood what 2.2.xx kernels were reporting.
    The "shared" memory in /proc/meminfo refers to something
    completely unrelated to SysV shared memory. This is no
    longer calculated because the computation was too costly.

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