Colin Law, thank you for your comments. As outlined in https://wiki.ubuntu.com/Bugs/Status Won't Fix would be more appropriate, for example, if you desired the outcome noted in the Bug Description, and the maintainers didn't want to implement it on technical grounds. Given you are no longer interested in this being fixed, it's considered Invalid. However, if you change your mind in the future, this report could always be reopened, and resumed where it was left off.
Thank you for reporting this and helping make Ubuntu better. Please feel free to report any future bugs you may find. ** Changed in: linux (Ubuntu) Status: Incomplete => Invalid -- 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/1037094 Title: "writing `/dev/mem': Bad address" Error writing to ACPI area with 32 bit kernel Status in “linux” package in Ubuntu: Invalid Bug description: Using the 32 bit kernel I am unable to write to the ACPI memory area using the command sudo dd if=value_file of=/dev/mem bs=1 seek=3660685688 count=4 This gives the error dd: writing `/dev/mem': Bad address 3660685688 is 0xDA31A178 and sudo cat /proc/iomem shows ... da216000-da32bfff : ACPI Non-volatile Storage ... This works ok with the 64 bit kernel. I have also tested it with the Oneiric kernel 3.0.0-12 and again the 64 bit kernel is ok but the 32 bit gives the error. In case it is relevant the context is that I am trying to apply the workaround for bug #806032 ( Fn + F[89] does not work for controlling brightness on Clevo laptops) described in comment #7, which works perfectly on the 64 bit kernel but gives Bad Address error on 32 bit. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: linux-image-3.5.0-10-generic 3.5.0-10.10 ProcVersionSignature: Ubuntu 3.5.0-10.10-generic 3.5.1 Uname: Linux 3.5.0-10-generic i686 ApportVersion: 2.4-0ubuntu6 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: colinl 2142 F.... pulseaudio Date: Wed Aug 15 13:42:37 2012 HibernationDevice: RESUME=UUID=386e4578-bf9d-4970-a10f-b0b513b32771 InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha i386 (20120730.1) MachineType: CLEVO CO. W240EU/W250EUQ/W270EUQ ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-10-generic root=UUID=c5043680-f556-4f19-9e32-c6fdb4c05f9e ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.5.0-10-generic N/A linux-backports-modules-3.5.0-10-generic N/A linux-firmware 1.88 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/24/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: W240EU/W250EUQ/W270EUQ dmi.board.vendor: CLEVO CO. dmi.board.version: V3.0 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: No Enclosure dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd02/24/2012:svnCLEVOCO.:pnW240EU/W250EUQ/W270EUQ:pvrNotApplicable:rvnCLEVOCO.:rnW240EU/W250EUQ/W270EUQ:rvrV3.0:cvnNoEnclosure:ct10:cvrN/A: dmi.product.name: W240EU/W250EUQ/W270EUQ dmi.product.version: Not Applicable dmi.sys.vendor: CLEVO CO. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1037094/+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