Hi there, I'm currently using CentOS 4.3 (Server edition) in a HP DC 5100 with the IntelR 915GV chipset, powered by a PIV 3.0GHZ. Now I'm facing a problem, with memory. I got myself 4GB of memory, the system bios detects it correctly, but in Linux can only see around 3.5gb memory. With the default kernel-smp (I use hyperthread) or with kernel-hugemem , I have the same results. Is there any way to workaround this issue? Thanks in advance, Bruno Sousa -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20060622/e49273ee/attachment-0002.html>
Bruno Sousa wrote:> Hi there, > > I'm currently using CentOS 4.3 (Server edition) in a HP DC 5100 with the > IntelR 915GV chipset, powered by a PIV 3.0GHZ. > > Now I'm facing a problem, with memory. > > I got myself 4GB of memory, the system bios detects it correctly, but in > Linux can only see around 3.5gb memory. With the default kernel-smp (I use > hyperthread) or with kernel-hugemem , I have the same results. > > Is there any way to workaround this issue?It is probably the 4Gb memory hole issue - various 'things' reserve memory below 4GB so hiding the real memory from the OS. Your BIOS may have a mapping option to map some of this hidden real memory to above 4Gb - however, you need to use a hugemem kernel to access this memory. James Pearson