Barziya

Or, it may be simpler if we just think of it as adding an extra 2640 bytes per stripe: (disks * 4096 * num_stripes) + (num_stripes * 2640) ... where: disks = (highest slot used + the parity disk) Or simpler: (disks * 4096 + 2640) * num_stripes ( 4 * 4096 + 2640) * 1280 = 24350720 bytes = 23780K (19 * 4096 + 2640) * 6256 = 503382784 bytes = 491584K Wonky math indeed!

That boot option is no longer presented -- it was removed in RC15. Clearly you could still add a mem=4095 parameter line manually, but at least according to limetech this issue was resolved long ago (RC15). ... and the issue is marked as "Solved" in the OS 5.x issue list: http://lime-technology.com/forum/index.php?topic=27788.0 You don't know what you're talking about. What you're calling solved is when Tom deleted half the posts in that thread, including Barzija's whole account, and called the issue "solved". Nice way of solving things! I have two such Supermicro boards, and I can see for myself whether the issue it's solved or not.

The 4GB option was removed not because the issue was fixed, but because it was a halfassed workaround and it causes a crash if you have less than 4GB physical RAM and you tell the kernel to boot in 4GB RAM. The issue for the affected systems is still exactly the same with the latest v5rc16c. Using that boot option is still "the cure" on such machine if it has 4GB-or-more physical RAM in it.