Comment 0 for bug 1497996

Revision history for this message
Para Siva (psivaa) wrote : when a new connection occurs, NetworkManager mmaps 64Mb hunk which is equivalent to the 32.28Kb per second rate over a 1800 second (30 minute) run of heath-check

This is noticed during health-check's tests on trusty (mostly i386) ISO's.

The failed builds in https://jenkins.qa.ubuntu.com/view/Trusty/view/Smoke%20Testing/job/trusty-desktop-i386-smoke-health-check/ are all due to this issue.

NetworkManager does not show this issue when no connections are made old
connections are re-established. Only new connections since reboot seem
to trigger this.

To reproduce this issue:

1. Clean boot
2. Wait until existing network connections are established (e.g. wifi)
3. Run health-check on Network Manager
4. Make a new connection, e.g. plug in ethernet connection for an
auto-ethernet connection to be established.
5. Stop health-check, observe that a huge allocation has occurred.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: network-manager 0.9.8.8-0ubuntu7.1
ProcVersionSignature: Ubuntu 3.19.0-28.30~14.04.1-generic 3.19.8-ckt5
Uname: Linux 3.19.0-28-generic i686
ApportVersion: 2.14.1-0ubuntu3.13
Architecture: i386
Date: Mon Sep 21 13:24:45 2015
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2015-09-08 (13 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta i386 (20150908)
IpRoute:
 default via 192.168.122.1 dev eth0 proto static
 192.168.122.0/24 dev eth0 proto kernel scope link src 192.168.122.148 metric 1
IwConfig:
 lo no wireless extensions.

 eth0 no wireless extensions.
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RfKill:

SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
 NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY DBUS-PATH
 Wired connection 1 85b3134d-a657-40be-8229-248bcd0ce79c 802-3-ethernet 1442841756 Mon 21 Sep 2015 01:22:36 PM UTC yes no /org/freedesktop/NetworkManager/Settings/0
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.8.8 connected enabled enabled enabled enabled disabled