This is my first x64 Ubuntu installation. I noticed this problem with earlier kernels but it was not critical to me because it did not cause freeze PC, only slow reactions and lags when working with files on HDD.
I installed kernel 3.18 and error messages are same, mostly at computer startup. Computer beeps fast 3 times and then I am not able to use HDD anymore. Every action gives me back IO error. I can only turn off computer hard way by holding power button. Computer is half year old, so I dont think it is HDD faulty. HDD is SSHD, combination of 8GB SSD and 1000GB HDD. ** Tags added: kernel-bug-exists-upstream -- 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/1400850 Title: failed command: READ DMA EXT Status in linux package in Ubuntu: Incomplete Bug description: Problems with HDD causing system slowdown and freeze. Occours randomly Description: Ubuntu 14.04.1 LTS Release: 14.04 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-40-generic 3.13.0-40.69 ProcVersionSignature: Ubuntu 3.13.0-40.69-generic 3.13.11.10 Uname: Linux 3.13.0-40-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: administrator 2582 F.... pulseaudio /dev/snd/controlC1: administrator 2582 F.... pulseaudio CurrentDesktop: GNOME Date: Tue Dec 9 21:02:10 2014 EcryptfsInUse: Yes InstallationDate: Installed on 2014-07-20 (141 days ago) InstallationMedia: Ubuntu-GNOME 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) MachineType: LENOVO 20354 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-40-generic.efi.signed root=UUID=ba1d6424-9ef3-4000-a963-2fc30c470bea ro libata.force=1.00:noncq quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-40-generic N/A linux-backports-modules-3.13.0-40-generic N/A linux-firmware 1.127.10 SourcePackage: linux StagingDrivers: rts5139 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/10/2014 dmi.bios.vendor: LENOVO dmi.bios.version: 9BCN25WW dmi.board.asset.tag: No Asset Tag dmi.board.name: Lancer 5A5 dmi.board.vendor: LENOVO dmi.board.version: NANANANANO DPK dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo Z50-70 dmi.modalias: dmi:bvnLENOVO:bvr9BCN25WW:bd04/10/2014:svnLENOVO:pn20354:pvrLenovoZ50-70:rvnLENOVO:rnLancer5A5:rvrNANANANANODPK:cvnLENOVO:ct10:cvrLenovoZ50-70: dmi.product.name: 20354 dmi.product.version: Lenovo Z50-70 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1400850/+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