** Also affects: linux (Ubuntu Saucy)
Importance: Undecided
Status: Confirmed
** Changed in: linux (Ubuntu Saucy)
Status: Confirmed => In Progress
** Changed in: linux (Ubuntu Saucy)
Assignee: (unassigned) => Tim Gardner (timg-tpi)
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https://bugs.launchpad.net/bugs/1235161
Title:
lowmemorykiller killing processes when swap still available
Status in “linux” package in Ubuntu:
In Progress
Status in “linux” source package in Saucy:
In Progress
Bug description:
Hi there,
I've upgraded a number of test systems to the latest Saucy beta. I've
seen quite a few cases of processes being killed by lowmemorykiller
with the following entries being logged:
[ 291.565121] lowmemorykiller: send sigkill to 4476 (python), adj 0, size 8864
[23515.006794] lowmemorykiller: send sigkill to 944 (update-apt-xapi), adj 0,
size 44175
The systems where this happens are kvm virtual machines with
relatively modest amounts of RAM allocated (256 or 512 MB) with 2 GB
swap. The swap is mostly unused when the kills occur.
I searched around and could only find references to Android for
lowmemorykiller and nothing on how to disable it. I tried the
following without success:
echo '9999,9999' > /sys/module/lowmemorykiller/parameters/adj
Any ideas on how to disable lowmemorykiller or at least prevent
processes to be killed rather than swapped?
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Oct 3 18:30 seq
crw-rw---- 1 root audio 116, 33 Oct 3 18:30 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.12.5-0ubuntu1
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:
CRDA: Error: [Errno 2] No such file or directory
DistroRelease: Ubuntu 13.10
HibernationDevice: RESUME=UUID=9d9d5ee8-6637-494c-a445-175def866e68
IwConfig: Error: [Errno 2] No such file or directory
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: Bochs Bochs
MarkForUpload: True
Package: linux (not installed)
PciMultimedia:
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-11-generic
root=UUID=a693cab7-d536-4f4c-8f9e-02d84b2ad614 ro nosplash noplymouth
console=tty0 console=ttyS0,115200n8
ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3
RelatedPackageVersions:
linux-restricted-modules-3.11.0-11-generic N/A
linux-backports-modules-3.11.0-11-generic N/A
linux-firmware 1.116
RfKill: Error: [Errno 2] No such file or directory
Tags: saucy
Uname: Linux 3.11.0-11-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
WifiSyslog:
Oct 4 07:10:46 vm2 kernel: [45649.533724] perf samples too long (2568 >
2500), lowering kernel.perf_event_max_sample_rate to 50000
Oct 4 14:18:47 vm2 kernel: [71330.618497] perf samples too long (5018 >
5000), lowering kernel.perf_event_max_sample_rate to 25000
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:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr:
dmi.product.name: Bochs
dmi.sys.vendor: Bochs
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