** Summary changed: - 3.15.0.1.2 breaks lxc-attach for unprivileged containers + 3.15.0-1.x breaks lxc-attach for unprivileged containers
-- 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/1322067 Title: 3.15.0-1.x breaks lxc-attach for unprivileged containers Status in “linux” package in Ubuntu: Confirmed Status in “linux” source package in Utopic: Confirmed Bug description: An unprivileged call to lxc-attach fails with kernel 3.15.0.1.2, but works fine using 3.13.0-24-generic. Under 3.15.0.1.2, attempting to connect to a running unprivileged container: $ lxc-attach --clear-env -n trusty -- /bin/true lxc-attach: Permission denied - Could not open /proc/3805/personality lxc-attach: failed to get context of the init process, pid = 3805 Note that lxc-start and lxc-console are not affected. To recreate: 1) Create an unpriv container: $ lxc-create -n utopic -t download -- -d ubuntu -r utopic -a amd64 2) Boot with 3.13.0-24-generic 3) Start the container: $ lxc-start -n utopic 4) Run a command in the container: $ lxc-attach -n utopic --clear-env -n trusty -- /bin/true 5) Reboot into 3.15.0.1.2 and re-run the lxc-start and lxc-attach. 6) Observe the EPERM error. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-generic 3.15.0.1.2 ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.2-0ubuntu4 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: james 2827 F.... pulseaudio /dev/snd/pcmC1D0p: james 2827 F...m pulseaudio /dev/snd/controlC0: james 2827 F.... pulseaudio CurrentDesktop: Unity Date: Thu May 22 07:21:55 2014 HibernationDevice: RESUME=UUID=db600bbe-faca-41f4-9338-c3e8e227599a InstallationDate: Installed on 2014-04-11 (40 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140409) MachineType: LENOVO 20AQCTO1WW ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-24-generic N/A linux-backports-modules-3.13.0-24-generic N/A linux-firmware 1.129 SourcePackage: linux UpgradeStatus: Upgraded to utopic on 2014-05-08 (13 days ago) dmi.bios.date: 02/10/2014 dmi.bios.vendor: LENOVO dmi.bios.version: GJET71WW (2.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20AQCTO1WW dmi.board.vendor: LENOVO dmi.board.version: 0B98405 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrGJET71WW(2.21):bd02/10/2014:svnLENOVO:pn20AQCTO1WW:pvrThinkPadT440s:rvnLENOVO:rn20AQCTO1WW:rvr0B98405STD:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 20AQCTO1WW dmi.product.version: ThinkPad T440s dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1322067/+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
