From mboxrd@z Thu Jan 1 00:00:00 1970 From: andrzej-kardas@o2.pl (Andrzej Kardas) Date: Thu, 14 Apr 2011 17:43:05 +0200 Subject: Missing 1GB RAM, where is it? In-Reply-To: <4CEB6A0515F3C54E9FC68A55F28698A423D05CEB@d3smail.denver.cqg> References: <4DA5DB47.9080101@o2.pl> <4CEB6A0515F3C54E9FC68A55F28698A423D05CEB@d3smail.denver.cqg> Message-ID: <4DA71609.5070800@o2.pl> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org On 14.04.2011 17:09, Adrian Cornish wrote: > Just a thought - lower end graphic cards use system RAM as their own > dont they You right, devices like graphic card, ethernet cards etc. are mapped into memory, what cause some amount RAM is not available for system use. But as i've wrote before, i'm wondering why addresses in /proc/iomem (where the map of memory is) are not contiguous. I think, there should be info about what region of memory is mapped where (BIOS, PCI bus, for system use etc)*for whole 4GB *(Am I right??) address space (for 32bit OS). Instead of that, there are small "holes" in addresses and the total size of this holes (in my case) is about 400MB. So i wonder where that memory is. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20110414/c0b6b2f7/attachment.html