On 12/02/2013 10:20 AM, Beagle Board wrote: > Hi all, > > I wanted to perform a RAM test in u-boot for my DM8148 board. I've used the > "*mtest*" command present in u-boot. > But its taking ages and it looks like a never ending test. > > So guys can anyone point me a way to test maximum RAM memory. > Here why i'm asking maximum is if I try it from kernel level then some > amount of RAM will be used up by kernel as well as other applications. > > Any thoughts in this regard will be of great help. >
Just my 2 cents. Memory testing has two targets. One is to confirm hardware connection. For this, we have walking 1 test, address test, etc. You can catch cross-talk, or other "hard" issues. I use POST memory test for this purpose. The other target is to confirm timing configuration. I found memory test algorithm is not helpful for this one. I never found any error with software testing when there is a timing issue. My solution is to rely on ECC detection and run some memory extensive tests and check ECC status. The tests I use includes booting Linux, run lmbench, run md5sum on ramdisk with know files filled with random data and checksum. Hope this helps. York _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot