Tarjei Huse, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via: ubuntu-bug linux
For more on this, please read the official Ubuntu documentation: Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette When opening up the new report, please feel free to subscribe me to it. Please note, not filing a new report would delay your problem being addressed as quickly as possible. No need exists to comment here at this time. After reading the above documentation in it's entirety, if you have further questions, you are welcome to redirect them to the appropriate mailing list or forum via http://www.ubuntu.com/support/community/mailinglists , or you may contact me directly. Thank you for your understanding. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/930007 Title: When booting with 32GB ram linux fails to find optimal mtrr when i915 (HD 3000) has 512 MB Ram Status in The Linux Kernel: Confirmed Status in “linux” package in Ubuntu: Incomplete Bug description: I have an ASUS P8Z68-V PRO, W/ BIOS 1101, 32GB of RAM and I am running Ubuntu precise 12.04. In the BIOS you can set the amount of memory for the "iGPU", the HD3000 GPU built into my i7-2600K. I just upgraded to 32GB of ram. Before the upgrade, I had this set to 512, had mtrr_spare_reg_nr=1 and everything worked fine. After the upgrade: mtrr_cleanup: can not find optimal value, please specify mtrr_gran_size/mtrr_chunk_size etc. No matter what I set mtrr_spare_reg_nr to I got this error. However, I found that if I turned the amount of memory for the iGPU down to 256, everything works again. The dmesg and other info for when the setting was at 512 can be found on the Post I made before i discovered that changing the iGPU to having 256mb would fix it at http://ubuntuforums.org/showthread.php?p=11677053 After changing iGPU to 256, here is the /proc/mttr /proc/mtrr reg00: base=0x000000000 ( 0MB), size= 2048MB, count=1: write-back reg01: base=0x080000000 ( 2048MB), size= 1024MB, count=1: write-back reg02: base=0x0bf800000 ( 3064MB), size= 8MB, count=1: uncachable reg03: base=0x100000000 ( 4096MB), size= 4096MB, count=1: write-back reg04: base=0x200000000 ( 8192MB), size= 8192MB, count=1: write-back reg05: base=0x400000000 (16384MB), size=16384MB, count=1: write-back reg06: base=0x800000000 (32768MB), size= 512MB, count=1: write-back reg07: base=0x820000000 (33280MB), size= 256MB, count=1: write-back reg08: base=0x82fe00000 (33534MB), size= 2MB, count=1: uncachable reg09: base=0x0d0000000 ( 3328MB), size= 256MB, count=1: write-combining and the dmesg is attached. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/930007/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
