I had this problem on two different installations. ** Description changed:
Sometimes, dns lookups via local bridge and local pdnsd take a long time. Additionally, pinging a KVM machine attached via tap device to the local bridge gives a "network unreachable" error because arp requests - don't get routed to the VM. After some time and/or tcpdump starts the - problem goes away without any further modifications/help. + don't get propagated to the VM. After some time and/or tcpdump starts + the problem goes away without any further modifications/help. A downgrade to kernel 3.0.22 helps. Kernels 3.1.x and 3.2.x seem to be a mess. Going live with them for the next five years, seems rather questionable. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image (not installed) ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6 Uname: Linux 3.2.0-17-generic x86_64 NonfreeKernelModules: nvidia AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 1.93-0ubuntu2 Architecture: amd64 AudioDevicesInUse: - BEN. PID ZUGR. BEFEHL - /dev/snd/controlC1: mark 3801 F.... pulseaudio - /dev/snd/pcmC1D7p: mark 3801 F...m pulseaudio - /dev/snd/controlC0: mark 3801 F.... pulseaudio + BEN. PID ZUGR. BEFEHL + /dev/snd/controlC1: mark 3801 F.... pulseaudio + /dev/snd/pcmC1D7p: mark 3801 F...m pulseaudio + /dev/snd/controlC0: mark 3801 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: - Card hw:0 'CA0106'/'Audigy SE [SB0570] at 0xce00 irq 16' - Mixer name : 'CA0106' - Components : '' - Controls : 35 - Simple ctrls : 18 + Card hw:0 'CA0106'/'Audigy SE [SB0570] at 0xce00 irq 16' + Mixer name : 'CA0106' + Components : '' + Controls : 35 + Simple ctrls : 18 Card1.Amixer.info: - Card hw:1 'NVidia'/'HDA NVidia at 0xfaffc000 irq 17' - Mixer name : 'Nvidia GPU 0d HDMI/DP' - Components : 'HDA:10de000d,10de0101,00100100' - Controls : 24 - Simple ctrls : 4 + Card hw:1 'NVidia'/'HDA NVidia at 0xfaffc000 irq 17' + Mixer name : 'Nvidia GPU 0d HDMI/DP' + Components : 'HDA:10de000d,10de0101,00100100' + Controls : 24 + Simple ctrls : 4 CurrentDmesg: - Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Keine Berechtigung - dmesg: write failed: Datenübergabe unterbrochen (broken pipe) + Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Keine Berechtigung + dmesg: write failed: Datenübergabe unterbrochen (broken pipe) Date: Sat Feb 25 19:55:04 2012 EcryptfsInUse: Yes MachineType: Gigabyte Technology Co., Ltd. P55-USB3 ProcEnviron: - TERM=xterm - SHELL=/bin/bash - PATH=(custom, user) - LANG=de_DE.UTF-8 - LANGUAGE=de:en + TERM=xterm + SHELL=/bin/bash + PATH=(custom, user) + LANG=de_DE.UTF-8 + LANGUAGE=de:en ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-17-generic root=/dev/mapper/hostnamevg-hostnameroot ro crashkernel=384M-2G:64M,2G-:128M ipv6.disable=1 ip=dhcp ISCSI_INITIATOR=iqn.1993-08.org.debian:01:95384da15332 ISCSI_TARGET_NAME=iqn.mstier.de:desktop64.img ISCSI_TARGET_IP=192.168.0.4 ISCSI_TARGET_PORT=3260 RfKill: - + SourcePackage: linux UpgradeStatus: Upgraded to precise on 2012-02-12 (13 days ago) WifiSyslog: - + dmi.bios.date: 02/11/2010 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F4 dmi.board.name: P55-USB3 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF4:bd02/11/2010:svnGigabyteTechnologyCo.,Ltd.:pnP55-USB3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP55-USB3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: P55-USB3 dmi.sys.vendor: Gigabyte Technology Co., Ltd. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/941059 Title: sporadic network packet delays/nontransmissions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/941059/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
