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I am working on montavista linux, on broadcom chipset, mips processor...having 32Mb RAM..out of which top 2Mb has been given for DMA access..remaining 30Mb should be available. But in cat /proc/meminfo it only shows 26Mb free, in dmesg..it shows that 4.7Mb is reserved for kernel. That is far too much that i expect as I have heard it ahuld not be more than 2-3% of total memory. How to reduce it? I am having busybox utilities.
here is the output: