Created an attachment (id=552666) trace analysis script Thank you for this trace. It shows that many buffers in fact straddle page boundaries but that does not systematically lead to a stall.
zcat c35-trace.gz | ./analyze.py [...] rfd 5 mapped, page left 1856 rfd 7 recv, page left ? rfd 6 mapped, page left 64 [...] rfd 5 recv, page left ? rfd 4 mapped, page left 2240 overflow after rfd 5 (repeated 530 times) [...] The trace exhibits one case of stall and it happens right before reading from a receive buffer that was mapped to within 64 bytes of a page boundary. This is the smallest distance within the entire trace. (The second smallest being 192). I'm wondering if the stall also depends on how much data the card actually writes into the buffer (ie. the stall happens when the cards actually writes accross a page). I've updated the kmp to also trace this information. If you can give it another spin, it'll be much appreciated - for science's sake! The kmp can be installed from the same location as comment 31. New srcversion is 057EBD10FCF6584249086C0. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1175091 Title: Cable Ethernet conn. "die" with Atheros Network Card in Ubuntu 13.04 Status in “network-manager” package in Ubuntu: Confirmed Status in Fedora: Unknown Status in openSUSE: Confirmed Bug description: In New Ubuntu 13.04 the network connections crash on 13.04 in cable Ethernet connection. The connection works for about 2-3 minutes, and after "die". Unplug/plug the cable sometimes helps to re-work the connection manager. I suppose the problem in the Atheros drivers In Ubuntu 12.10 the network works perfectly. The bug is confermed by many other users. The problem seems to be more present when using static IP (type of network configuration : manual) WIFI works perfectly (Card is Atheros too) My network Ethernet card is ATHEROS AR8152 command : lshw -C network -network description: Wireless interface product: AR9285 Wireless Network Adapter (PCI-Express) vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:0c:00.0 logical name: wlan0 version: 01 serial: 90:a4:de:4a:7a:28 width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=3.8.0-19-generic firmware=N/A ip=10.173.129.175 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn resources: irq:17 memory:f69f0000-f69fffff *-network description: Ethernet interface product: AR8152 v2.0 Fast Ethernet vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:09:00.0 logical name: eth0 version: c1 serial: 78:2b:cb:f0:56:35 capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=atl1c driverversion=1.0.1.1-NAPI latency=0 link=no multicast=yes port=twisted pair resources: irq:47 memory:f68c0000-f68fffff ioport:df00(size=128) Without this 13.04 is unuseful. Thanx Stefano Pecchenino pe...@fastwebnet.it ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: network-manager 0.9.8.0-0ubuntu6 ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8 Uname: Linux 3.8.0-19-generic i686 ApportVersion: 2.9.2-0ubuntu8 Architecture: i386 CRDA: country IT: (2402 - 2482 @ 40), (N/A, 20) (5170 - 5250 @ 40), (N/A, 20) (5250 - 5330 @ 40), (N/A, 20), DFS (5490 - 5710 @ 40), (N/A, 27), DFS Date: Wed May 1 10:23:15 2013 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2013-04-30 (0 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424) IpRoute: default via 10.173.128.1 dev wlan0 proto static 10.173.128.0/20 dev wlan0 proto kernel scope link src 10.173.129.175 metric 9 169.254.0.0/16 dev wlan0 scope link metric 1000 MarkForUpload: True NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=it_IT.UTF-8 SHELL=/bin/bash SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-con: NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY DBUS-PATH FASTWEB-PEKKE e24676af-073a-4071-8e25-a3dc1c022421 802-11-wireless 1367396634 mer 01 mag 2013 10:23:54 CEST yes no /org/freedesktop/NetworkManager/Settings/1 ADSL Ufficio 8db2aff6-e740-4f53-81de-e260b2c883db 802-3-ethernet 0 never no no /org/freedesktop/NetworkManager/Settings/0 nmcli-dev: DEVICE TYPE STATE DBUS-PATH eth0 802-3-ethernet unavailable /org/freedesktop/NetworkManager/Devices/1 wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/0 nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN running 0.9.8.0 connected enabled enabled enabled enabled disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1175091/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
