Ubuntu
indicator-network package

Network manager caches previously seen access points too long

Bug #1331753 reported by Alan Pope 🍺🐧🐱 🦄 on 2014-06-18

This bug report is a duplicate of: Bug #1425172: Network indicator lists the non-exist AP (timeout for the AP to be removed is too big, ~6min). Edit Remove

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	indicator-network (Ubuntu)	Invalid	Undecided	Unassigned
	network-manager (Ubuntu)	Expired	Undecided	Unassigned

Bug Description

Using mako #87.
Enable wifi on deivce.
Go for a drive to a friend or relatives house where they have wifi.
When you arrive, pull down the network indicator and try to find the access point.

What you should see is a small number of access points nearby, with the strongest signal ones being obvious.

What actually happens is for some time you see every access point the phone saw along the journey between locations.

See video:- https://www.youtube.com/watch?v=lQMLik-WH5o

I would expect the number of access points listed to age/decay faster. I guess we haven't noticed this before on the desktop because people don't usually do what I did with a laptop/desktop.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: network-manager 0.9.8.8-0ubuntu18
Uname: Linux 3.4.0-5-mako armv7l
ApportVersion: 2.14.3-0ubuntu1
Architecture: armhf
CRDA: Error: [Errno 2] No such file or directory: 'iw'
Date: Wed Jun 18 20:30:02 2014
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d
InstallationDate: Installed on 2014-06-18 (0 days ago)
InstallationMedia: Ubuntu Utopic Unicorn (development branch) - armhf (20140618)
IpRoute:
default via 192.168.1.1 dev wlan0 proto static
10.145.38.0/24 dev rmnet_usb1 proto kernel scope link src 10.145.38.242 metric 13
192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.105 metric 9
PciNetwork:

SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.dbus.1.system.d.org.freedesktop.NetworkManager.conf: 2014-06-11T20:47:57
nmcli-dev:
DEVICE TYPE STATE DBUS-PATH
wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/1
/ril_0 gsm 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 enabled

Tags:

Revision history for this message

Alan Pope 🍺🐧🐱 🦄 (popey) wrote on 2014-06-18:

Dependencies.txt Edit (4.3 KiB, text/plain; charset="utf-8")
IpAddr.txt Edit (4.0 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (1.3 KiB, text/plain; charset="utf-8")
NetDevice.dummy0.txt Edit (154 bytes, text/plain; charset="utf-8")
NetDevice.lo.txt Edit (142 bytes, text/plain; charset="utf-8")
NetDevice.p2p0.txt Edit (255 bytes, text/plain; charset="utf-8")
NetDevice.rev_rmnet0.txt Edit (229 bytes, text/plain; charset="utf-8")
NetDevice.rev_rmnet1.txt Edit (229 bytes, text/plain; charset="utf-8")
NetDevice.rev_rmnet2.txt Edit (229 bytes, text/plain; charset="utf-8")
NetDevice.rev_rmnet3.txt Edit (229 bytes, text/plain; charset="utf-8")
NetDevice.rev_rmnet4.txt Edit (229 bytes, text/plain; charset="utf-8")
NetDevice.rev_rmnet5.txt Edit (229 bytes, text/plain; charset="utf-8")
NetDevice.rev_rmnet6.txt Edit (229 bytes, text/plain; charset="utf-8")
NetDevice.rev_rmnet7.txt Edit (229 bytes, text/plain; charset="utf-8")
NetDevice.rev_rmnet8.txt Edit (229 bytes, text/plain; charset="utf-8")
NetDevice.rmnet0.txt Edit (216 bytes, text/plain; charset="utf-8")
NetDevice.rmnet1.txt Edit (216 bytes, text/plain; charset="utf-8")
NetDevice.rmnet2.txt Edit (216 bytes, text/plain; charset="utf-8")
NetDevice.rmnet3.txt Edit (216 bytes, text/plain; charset="utf-8")
NetDevice.rmnet4.txt Edit (216 bytes, text/plain; charset="utf-8")
NetDevice.rmnet5.txt Edit (216 bytes, text/plain; charset="utf-8")
NetDevice.rmnet6.txt Edit (216 bytes, text/plain; charset="utf-8")
NetDevice.rmnet7.txt Edit (217 bytes, text/plain; charset="utf-8")
NetDevice.rmnet_smux0.txt Edit (232 bytes, text/plain; charset="utf-8")
NetDevice.rmnet_usb0.txt Edit (744 bytes, text/plain; charset="utf-8")
NetDevice.rmnet_usb1.txt Edit (744 bytes, text/plain; charset="utf-8")
NetDevice.rmnet_usb2.txt Edit (744 bytes, text/plain; charset="utf-8")
NetDevice.rmnet_usb3.txt Edit (744 bytes, text/plain; charset="utf-8")
NetDevice.sit0.txt Edit (143 bytes, text/plain; charset="utf-8")
NetDevice.wlan0.txt Edit (449 bytes, text/plain; charset="utf-8")
NetworkManager.conf.txt Edit (75 bytes, text/plain; charset="utf-8")
NetworkManager.state.txt Edit (102 bytes, text/plain; charset="utf-8")
ProcEnviron.txt Edit (128 bytes, text/plain; charset="utf-8")
RfKill.txt Edit (112 bytes, text/plain; charset="utf-8")
SystemImageInfo.txt Edit (183 bytes, text/plain; charset="utf-8")
WifiSyslog.txt Edit (1020.4 KiB, text/plain; charset="utf-8")
modified.conffile..etc.dbus.1.system.d.org.freedesktop.NetworkManager.conf.txt Edit (7.4 KiB, text/plain; charset="utf-8")
nmcli-con.txt Edit (3.1 KiB, text/plain; charset="utf-8")

Mathieu Trudel-Lapierre (cyphermox) on 2014-06-18

affects:

network-manager (Ubuntu) → indicator-network (Ubuntu)

Revision history for this message

Launchpad Janitor (janitor) wrote on 2014-06-18:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in indicator-network (Ubuntu):
status:	New → Confirmed

Revision history for this message

Antti Kaijanmäki (kaijanmaki) wrote on 2014-06-19:

To verify this, I would need to see how many access points NM is actually reporting.

Alan, next time you see this plug in an usb cable and using phablet-shell please get me the output of:

$ dbus-send --system --print-reply --dest=org.freedesktop.NetworkManager /org/freedesktop/NetworkManager/Devices/1 org.freedesktop.NetworkManager.Device.Wireless.GetAccessPoints
(if that fails, try ../Devices/0 instead)

$ dbus-send --session --print-reply --dest=com.canonical.indicator.network /com/canonical/indicator/network/phone org.gtk.Menus.Start array:uint32:0,1

Thanks!

Revision history for this message

Antti Kaijanmäki (kaijanmaki) wrote on 2014-06-19:

Oh, actually instead of that first dbus-send command, please, do:

$ nmcli d wifi list

Revision history for this message

Alan Pope 🍺🐧🐱 🦄 (popey) wrote on 2014-06-19:

No problem. Will do.

Revision history for this message

Alan Pope 🍺🐧🐱 🦄 (popey) wrote on 2014-06-19:

networks.tgz Edit (14.0 KiB, application/x-tar)

Here you go. This was the result of running those two commands every couple of minutes.

Started at home with very few access points visible (155448) . Went for a 3 mile drive to ACC so where you see ACC_UK in the list of access points that's the end of my journey (at 161214) then I turned around and came home. Note that the "popey" ones are still in the list (160413) long after I left home, and ACC_UK is still in the list after I arrive home despite never connecting to it and it being 3 miles away.

Hope that's helpful.

Revision history for this message

Antti Kaijanmäki (kaijanmaki) wrote on 2014-06-23:

Thanks Alan!

Returning this to network-manager based on those logs.
It's either NM or the wireless driver that keeps caching these.

Changed in network-manager (Ubuntu):
status:	New → Confirmed
Changed in indicator-network (Ubuntu):
status:	Confirmed → Invalid

Revision history for this message

Mathieu Trudel-Lapierre (cyphermox) wrote on 2014-08-12:

Please see https://wiki.ubuntu.com/DebuggingNetworkManager and follow the steps outlined on how to get wpasupplicant debug logs, if this bug can still be reproduced on newer images.

Changed in network-manager (Ubuntu):
status:	Confirmed → Incomplete

Revision history for this message

Launchpad Janitor (janitor) wrote on 2014-10-12:

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]

Changed in network-manager (Ubuntu):
status:	Incomplete → Expired

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Network manager caches previously seen access points too long

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indicator-network package