apport information ** Attachment added: "Card0.Codecs.codec.0.txt" https://bugs.launchpad.net/bugs/1507959/+attachment/4500925/+files/Card0.Codecs.codec.0.txt
-- 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/1507959 Title: Regression: Kernel update breaks all lxc-containers lxc-start failing with (apparmor="DENIED" operation="mount") Status in linux package in Ubuntu: Confirmed Bug description: Hello, The following recent kernel update completely break our lxc-start usage on precise both with precise original kernel 3.2 + also the trusty-lts-stack using 3.13 After installing those new kernel updates all lxc-start of a container fail with: "Permission denied - mount failed '/dev/pts/ptmx'->'/dev/ptmx'" with strace pointing to: 13695 mount("/dev/pts/ptmx", "/dev/ptmx", 0x7f4d68c85d37, MS_BIND, NULL) = -1 EACCES (Permission denied) and dmesg showing: Oct 20 10:59:00 titan226 kernel: [ 663.508664] type=1400 audit(1445331540.807:29): apparmor="DENIED" operation="mount" info="failed type match" error=-13 profile="/usr/bin/lxc-start" name="/dev/ptmx" pid=2897 comm="lxc-start" srcname="/dev/pts/ptmx" flags="rw, bind" After downgrading kernel version the problem immediately dissappeared and the lxc-start for containers works again as before. Bad versions: ii linux-image-3.13.0-66-generic 3.13.0-66.108~precise1 Linux kernel image for version 3.13.0 on 64 bit x86 SMP ii linux-image-3.2.0-92-generic 3.2.0-92.130 Linux kernel image for version 3.2.0 on 64 bit x86 SMP Good versions: ii linux-image-3.13.0-61-generic 3.13.0-61.100~precise1 Linux kernel image for version 3.13.0 on 64 bit x86 SMP ii linux-image-3.2.0-88-generic 3.2.0-88.126 Linux kernel image for version 3.2.0 on 64 bit x86 SMP From kernel changelog maybe this other issue here maybe causing it but not verified: * SAUCE: (no-up) apparmor: fix mount not handling disconnected paths - LP: #1496430 --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-61-generic. AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.0.1-0ubuntu17.11 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Error: [Errno 2] No such file or directory Card0.Amixer.values: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 12.04 HibernationDevice: RESUME=UUID=ee5d3bc2-531d-4fbf-ba3f-033c27498274 IwConfig: Error: [Errno 2] No such file or directory MachineType: FUJITSU PRIMERGY MX130 S1 MarkForUpload: True Package: linux (not installed) ProcEnviron: LANGUAGE=en_US TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-61-generic root=UUID=8c11de07-6403-46cf-994b-15750a7404ba ro rootdelay=80 ProcVersionSignature: Ubuntu 3.13.0-61.100~precise1-generic 3.13.11-ckt22 RelatedPackageVersions: linux-restricted-modules-3.13.0-61-generic N/A linux-backports-modules-3.13.0-61-generic N/A linux-firmware 1.79.18 RfKill: Error: [Errno 2] No such file or directory Tags: precise Uname: Linux 3.13.0-61-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: dmi.bios.date: 01/18/2011 dmi.bios.vendor: FUJITSU // Phoenix Technologies Ltd. dmi.bios.version: 6.00 R1.01.2974.A1 dmi.board.asset.tag: - dmi.board.name: D2974 dmi.board.vendor: FUJITSU dmi.board.version: S26361-D2974-A1 dmi.chassis.type: 3 dmi.chassis.vendor: FUJITSU dmi.chassis.version: MX130S1F dmi.modalias: dmi:bvnFUJITSU//PhoenixTechnologiesLtd.:bvr6.00R1.01.2974.A1:bd01/18/2011:svnFUJITSU:pnPRIMERGYMX130S1:pvr:rvnFUJITSU:rnD2974:rvrS26361-D2974-A1:cvnFUJITSU:ct3:cvrMX130S1F: dmi.product.name: PRIMERGY MX130 S1 dmi.sys.vendor: FUJITSU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1507959/+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