Where'd my shared memory go?

[dogbert at clue4all.net (Brian J. Conway)]

> To throw this in, since I didn't see any responses: There
> was a discussion on this list a month or two ago about
> this, if it's the same phenomenon. Here's a link about how
> Solaris manages its memory, which is analogous:
> 
> http://www.sunworld.com/sunworldonline/swol-10-1995/swol-10-perf_p.html

After consulting the kernel archives, it turns out that shared memory is
working fine, as long as you mount it as /dev/shm according to the
Documentation/Changes file, but at the moment accounting for shared
memory isn't implemented (you're in trouble if your shared memory is
actually 0), as it was thought to be too expensive for making a quick
fix.  That should be taken care of sometime in the future.

Brian J. Conway
dogbert at clue4all.net
Geek for hire: http://clue4all.net/resume

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