Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.15 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-utopic/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1330844 Title: I installed ubuntu14.04LTS in LenovoG510(4th gen intel i5 processor, 4G, 500HD, 2.5GH,). Very often(every 30 minutes) wired connection lost and will be restored only when system is rebooted. And also durind file sharing from server, downloads from dc++ system freezes completely and have to hard power off. Here are the outputs of few commands run when connection lost. Status in “linux” package in Ubuntu: Incomplete Bug description: dmesg | tail [ 414.101890] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting [ 414.102104] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting [ 414.102310] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting [ 414.102510] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting [ 414.102713] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting [ 414.102918] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting [ 414.103124] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting [ 414.103334] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting [ 414.103533] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting [ 414.103742] alx 0000:03:00.0 eth0: fatal interrupt 0x4019607, resetting lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04 LTS Release: 14.04 Codename: trusty uname -a Linux praveen 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ifconfig -a eth0 Link encap:Ethernet HWaddr 20:89:84:f5:37:81 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:13 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:18 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:880 errors:0 dropped:0 overruns:0 frame:0 TX packets:880 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:180931 (180.9 KB) TX bytes:180931 (180.9 KB) wlan0 Link encap:Ethernet HWaddr 48:d2:24:a4:bd:3d UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface sudo lshw -c network *-network description: Wireless interface product: AR9485 Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:02:00.0 logical name: wlan0 version: 01 serial: 48:d2:24:a4:bd:3d width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=3.13.0-29-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn resources: irq:17 memory:b0500000-b057ffff memory:9ff00000-9ff0ffff *-network description: Ethernet interface product: QCA8172 Fast Ethernet vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:03:00.0 logical name: eth0 version: 10 serial: 20:89:84:f5:37:81 capacity: 100Mbit/s width: 64 bits clock: 33MHz capabilities: pm pciexpress msi msix cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=alx latency=0 link=no multicast=yes port=twisted pair resources: irq:46 memory:b0400000-b043ffff ioport:3000(size=128) cat /etc/network/interfaces # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback plugins=ifupdown,keyfile,ofono dns=dnsmasq no-auto-default=20:89:84:F5:37:81, [ifupdown] managed=false cat /var/lib/NetworkManager/NetworkManager.state [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true version.log Ubuntu 3.13.0-29.53-generic 3.13.11.2 ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-29-generic 3.13.0-29.53 ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2 Uname: Linux 3.13.0-29-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: praveen 1893 F.... pulseaudio CurrentDesktop: Unity Date: Tue Jun 17 12:34:23 2014 HibernationDevice: RESUME=UUID=6c75982b-cf47-4ea8-bad6-43fc8d86c37e InstallationDate: Installed on 2014-06-16 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: LENOVO 20238 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic.efi.signed root=UUID=ec684e9d-97f7-41c0-a0bc-bfe8604345d4 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-29-generic N/A linux-backports-modules-3.13.0-29-generic N/A linux-firmware 1.127.2 SourcePackage: linux StagingDrivers: rts5139 UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/16/2013 dmi.bios.vendor: LENOVO dmi.bios.version: 79CN29WW(V1.13) dmi.board.asset.tag: No Asset Tag dmi.board.name: INVALID dmi.board.vendor: LENOVO dmi.board.version: 31900004WIN8 STD SGL dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo G510 dmi.modalias: dmi:bvnLENOVO:bvr79CN29WW(V1.13):bd07/16/2013:svnLENOVO:pn20238:pvrLenovoG510:rvnLENOVO:rnINVALID:rvr31900004WIN8STDSGL:cvnLENOVO:ct10:cvrLenovoG510: dmi.product.name: 20238 dmi.product.version: Lenovo G510 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1330844/+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