** Description changed: Sometimes when creating several new tap devices and adding them to a bridge interface in parallel the network freezes for some seconds. The attached C program can be used to replicate the problem. In a host with a bridge interface configured as its main network interface, compile the program and then run it from the shell as root as follows: - # while ping -c 1 10.1.0.1; do ./a.out 20 bridge0; done + # while ping -c 1 10.1.0.1; do ./a.out 20 bridge0; done substituting bridge0 by the name of bridge interface and the IP 10.1.0.1 by the IP of some machine reachable though the bridge (for instance the default router). Also keep pinging the bridge interface from another machine so that the problem becomes easily noticeable. - Eventually, the traffic through the bridge interface will stop for some - seconds (~8s). + Eventually, the traffic through the bridge interface will stop for + several seconds (~30s). ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: linux-image-2.6.32-24-generic 2.6.32-24.42 Regression: No Reproducible: Yes ProcVersionSignature: Ubuntu 2.6.32-24.42-generic 2.6.32.15+drm33.5 Uname: Linux 2.6.32-24-generic x86_64 AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory AplayDevices: Error: [Errno 2] No such file or directory Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory Date: Mon Sep 27 18:42:03 2010 Lsusb: - Bus 002 Device 003: ID 0424:2514 Standard Microsystems Corp. - Bus 002 Device 002: ID 8087:0020 - Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub - Bus 001 Device 002: ID 8087:0020 - Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 002 Device 003: ID 0424:2514 Standard Microsystems Corp. + Bus 002 Device 002: ID 8087:0020 + Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub + Bus 001 Device 002: ID 8087:0020 + Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. PowerEdge R210 PciMultimedia: - + ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-24-generic root=/dev/mapper/qvd--test2-root ro quiet ProcEnviron: - LANG=en_US.UTF-8 - SHELL=/bin/bash + LANG=en_US.UTF-8 + SHELL=/bin/bash SourcePackage: linux dmi.bios.date: 05/24/2010 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.3.4 dmi.board.name: 0M877N dmi.board.vendor: Dell Inc. dmi.board.version: A02 dmi.chassis.type: 23 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.3.4:bd05/24/2010:svnDellInc.:pnPowerEdgeR210:pvr:rvnDellInc.:rn0M877N:rvrA02:cvnDellInc.:ct23:cvr: dmi.product.name: PowerEdge R210 dmi.sys.vendor: Dell Inc.
-- network freezes when creating tap devices and adding them to a bridge in parallel https://bugs.launchpad.net/bugs/649099 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
