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Re: Memory lost ?



That memory is used by the kernel code itself +
the uncompressed ROM file system.
(This has the size of the kimage file)

An obvious improvement would be to keep the filesystem
compressed on filelevel in the flash instead,
it still just ideas though.

/Johan



-----Original Message-----
From: Johann Dantant <johann.d@xxxxxxx.fr>
To: ETRAX Developer List <dev-etrax@xxxxxxx.com>
Cc: Bo Gabrielsson <bosse@xxxxxxx.com>
Date: Friday, December 15, 2000 12:17
Subject: Memory lost ?


>Hi,
>
>I'm working on the devboard for a while now. This board has got 2Mb flash
>and 8Mb DRAM.
>When I cat /proc/meminfo to know how much DRAM is available, the total
>memory is not 8Mb, but 5914624b (i.e. about 5.5Mb).
>
>I was trying to figure where has my memory gone... The RAMDRIVE is
>configured to be 512kb wide. But where are the last 2Mb? I think they are
>reserved for the "boot from RAM" stuff (using "ktest" instead of "kflash",
>the flash image is sent to a RAM area instead of the  flash chip). If
right,
>I want to know if it is possible to disable this feature to make those 2Mb
>really available (or maybe they are required by the JFFS as a "king-size"
>cache for the flash ???).
>
>Thanks for your reply,
>
>Johann DANTANT
>Pro-Active
>
>www.pro-active.fr
>
>