Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.0 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.0-rc5-vivid/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete ** Tags added: kernel-da-key -- 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/1436319 Title: Unable to increase nr_requests... Status in linux package in Ubuntu: Incomplete Bug description: Anyone know why ubuntu utopic/trusty doesn’t allow to change nr_requests and I/O scheduler for instance that is running on the cloud running openstack havana? echo 129 > /sys/block/vda/queue/nr_requests -bash: echo: write error: Invalid argument However values lower then 129 works. Thanks --- AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Mar 24 06:50 seq crw-rw---- 1 root audio 116, 33 Mar 24 06:50 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14.1-0ubuntu3.7 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: DistroRelease: Ubuntu 14.04 Ec2AMI: ami-000000a3 Ec2AMIManifest: FIXME Ec2AvailabilityZone: nova Ec2InstanceType: ra.intel.ssd.xl4 Ec2Kernel: aki-00000002 Ec2Ramdisk: ari-00000002 HibernationDevice: RESUME=UUID=7b7c8950-fe4d-4322-9a60-48dadc7d5eba InstallationDate: Installed on 2014-04-16 (343 days ago) InstallationMedia: IwConfig: Error: [Errno 2] No such file or directory Lsusb: Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: OpenStack Foundation OpenStack Nova Package: linux (not installed) PciMultimedia: ProcEnviron: SHELL=/bin/bash TERM=vt100 PATH=(custom, no user) LANG=en_US.UTF-8 XDG_RUNTIME_DIR=<set> ProcFB: 0 cirrusdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-33-generic root=UUID=afee8cc2-d9a0-4f30-8454-94e974e89bf4 ro console=tty1 console=ttyS0 ProcVersionSignature: Ubuntu 3.16.0-33.44~14.04.1-generic 3.16.7-ckt7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.16.0-33-generic N/A linux-backports-modules-3.16.0-33-generic N/A linux-firmware 1.127.11 RfKill: Error: [Errno 2] No such file or directory Tags: trusty ec2-images Uname: Linux 3.16.0-33-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 01/01/2011 dmi.bios.vendor: Bochs dmi.bios.version: Bochs dmi.chassis.type: 1 dmi.chassis.vendor: Bochs dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2011:svnOpenStackFoundation:pnOpenStackNova:pvr2013.2.2:cvnBochs:ct1:cvr: dmi.product.name: OpenStack Nova dmi.product.version: 2013.2.2 dmi.sys.vendor: OpenStack Foundation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1436319/+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
