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I'd like to know what the kernel does when the value of kernel.shmall works out to being larger than the total amount of available memory (main memory + swap space). Is the value ignored and the default used or is it applied to the effect of "no limit"?

$ uname -rv
2.6.18-141.el5 #1 SMP Fri Apr 24 17:46:35 EDT 2009
$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.3 (Tikanga)
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