Hi Joseph As per comment #2, this bug reproduced on the latest upstream kernel.
Regards, Glyn ** Tags added: kernel-bug-exists-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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/1303683 Title: Memory resource controller oom killing not functioning Status in “linux” package in Ubuntu: Confirmed Bug description: This problem reproduces on Ubuntu 13.10 with a 3.11 kernel but, for comparison, works ok on RHEL 7 with a 3.10 kernel. Steps to reproduce: 1. Make a directory, for example /home/glyn/cgh1. 2. Switch to root user. 3. Attach the memory resource controller subsystem to a cgroup hierarchy: # mount -t cgroup -o memory none /home/glyn/cgh1 4. cd /home/glyn/cgh1 5. Createa a child cgroup: # mkdir example 6. cd example 7. check oom killing is enabled: # cat memory.oom_control oom_kill_disable 0 under_oom 0 8. Set a memory limit for the example cgroup of approx. 1 MB: # echo 1000000 > memory.limit_in_bytes # cat memory.limit_in_bytes 1003520 9. Move the current process into the example cgroup and check it has moved: # echo $$ > tasks # cat tasks 7357 8449 # cat tasks 7357 8450 10. Run a process which will exceed 1 MB of memory: # perl -e 'for ($i = 0; $i < 10; $i++) { $foo .= "A" x (1024 * 1024); }' # This terminates successfully whereas it should have been killed. On RHEL 7 (and on earlier Ubuntu versions I have tried), the results look like this: # perl -e 'for ($i = 0; $i < 10; $i++) { $foo .= "A" x (1024 * 1024); }' killed # I will attempt to reproduce this bug on an upstream kernel, but don't want to lose the bug report during the upgrade, hence I am filing the report now. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image (not installed) ProcVersionSignature: Ubuntu 3.11.0-17.31-generic 3.11.10.3 Uname: Linux 3.11.0-17-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: glyn 1587 F.... pulseaudio Date: Mon Apr 7 10:16:24 2014 HibernationDevice: RESUME=UUID=18692506-8752-46bb-8b44-1fb2f0ba5e03 InstallationDate: Installed on 2014-03-05 (32 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1) IwConfig: eth0 no wireless extensions. lo no wireless extensions. docker0 no wireless extensions. Lsusb: Bus 001 Device 004: ID 80ee:0021 VirtualBox USB Tablet Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: innotek GmbH VirtualBox MarkForUpload: True ProcEnviron: LANGUAGE=en_GB:en TERM=xterm PATH=(custom, no user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-17-generic root=UUID=24214f2e-a703-46ea-9fdd-0f64e110b628 ro quiet splash vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-3.11.0-17-generic N/A linux-backports-modules-3.11.0-17-generic N/A linux-firmware 1.116.2 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/01/2006 dmi.bios.vendor: innotek GmbH dmi.bios.version: VirtualBox dmi.board.name: VirtualBox dmi.board.vendor: Oracle Corporation dmi.board.version: 1.2 dmi.chassis.type: 1 dmi.chassis.vendor: Oracle Corporation dmi.modalias: dmi:bvninnotekGmbH:bvrVirtualBox:bd12/01/2006:svninnotekGmbH:pnVirtualBox:pvr1.2:rvnOracleCorporation:rnVirtualBox:rvr1.2:cvnOracleCorporation:ct1:cvr: dmi.product.name: VirtualBox dmi.product.version: 1.2 dmi.sys.vendor: innotek GmbH To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1303683/+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