[Bug 1423631] Re: tap interface drops many packets on highload systems
I found the cause of the problem. The tap interface of a instance has small tx length 500 packets. At a high network load (15-25 Kpps) and high CPU load on a guest some times queue overflows and the tap interface start drop network packages. I think that queue overflow occurs in moments of micro friezes (<1000ms) of a virtual machine. I solved this problem by increasing the tx_queue up to 1. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1445084] [NEW] neutron-dhcp-agent send 0x03 dhcp flag to a client
Public bug reported: If the client is a virtial host with Window introduced in the AD domain. The client does not send dns updates on AD server because neutron-dhcp-agent sends 0x03 dhcp flag in response. Client request: Option: (81) Client Fully Qualified Domain Name Length: 23 Flags: 0x00 = Reserved flags: 0x00 0... = Server DDNS: Some server updates ..0. = Server overrides: No override ...0 = Server: Client A-RR result: 0 PTR-RR result: 0 Client name: dnstest.local Server respose: Option: (81) Client Fully Qualified Domain Name Length: 30 Flags: 0x03 = Reserved flags: 0x00 0... = Server DDNS: Some server updates .0.. = Encoding: ASCII encoding ..1. = Server overrides: Override ...1 = Server: Server A-RR result: 255 PTR-RR result: 255 Client name: host-172-25-43-40.local Because of this windows host does not send update dns requests on AD server and after certain time out server remove client hostname from DNS zone. ** Affects: neutron (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to neutron in Ubuntu. https://bugs.launchpad.net/bugs/1445084 Title: neutron-dhcp-agent send 0x03 dhcp flag to a client To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/neutron/+bug/1445084/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] UdevDb.txt
apport information ** Attachment added: "UdevDb.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323633/+files/UdevDb.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] Lsusb.txt
apport information ** Attachment added: "Lsusb.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323629/+files/Lsusb.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] WifiSyslog.txt
apport information ** Attachment added: "WifiSyslog.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323635/+files/WifiSyslog.txt ** Changed in: qemu-kvm (Ubuntu) Status: New => Incomplete ** Changed in: qemu-kvm (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] IwConfig.txt
apport information ** Attachment added: "IwConfig.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323627/+files/IwConfig.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] Lspci.txt
apport information ** Attachment added: "Lspci.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323628/+files/Lspci.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] ProcCpuinfo.txt
apport information ** Attachment added: "ProcCpuinfo.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323630/+files/ProcCpuinfo.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] UdevLog.txt
apport information ** Attachment added: "UdevLog.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323634/+files/UdevLog.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] CurrentDmesg.txt
apport information ** Attachment added: "CurrentDmesg.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323626/+files/CurrentDmesg.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] ProcModules.txt
apport information ** Attachment added: "ProcModules.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323632/+files/ProcModules.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] Re: tap interface drops many packets on highload systems
apport information ** Tags added: apport-collected trusty ** Description changed: I use qemu-kvm in openstak. On highload hypervisor tap interface of net-highload gues drops many TX packages. Network options of qemu-system-x86_64 "... -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:86:67:7b,bus=pci.0,addr=0x3..." Network domin config: tape4009073-0b Link encap:Ethernet HWaddr fe:16:3e:86:67:7b inet6 addr: fe80::fc16:3eff:fe86:677b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1587622634 errors:0 dropped:0 overruns:0 frame:0 TX packets:1484106438 errors:0 dropped:460259 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:877878711500 (877.8 GB) TX bytes:3071846828531 (3.0 TB) + --- + AlsaDevices: + total 0 + crw-rw 1 root audio 116, 1 Feb 18 12:06 seq + crw-rw 1 root audio 116, 33 Feb 18 12:06 timer + AplayDevices: Error: [Errno 2] No such file or directory + ApportVersion: 2.14.1-0ubuntu3.7 + Architecture: amd64 + ArecordDevices: Error: [Errno 2] No such file or directory + AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: + CRDA: Error: [Errno 2] No such file or directory + DistroRelease: Ubuntu 14.04 + InstallationDate: Installed on 2014-07-01 (234 days ago) + InstallationMedia: Ubuntu-Server 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.2) + MachineType: Dell Inc. PowerEdge M620 + Package: qemu-kvm + PciMultimedia: + + ProcEnviron: + TERM=xterm + PATH=(custom, no user) + LANG=en_US.UTF-8 + LC_MESSAGES=en_US.UTF-8 + SHELL=/bin/bash + ProcFB: 0 VESA VGA + ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-30-generic root=UUID=5965239d-820a-49a1-9d8e-23a4c1f87ce6 ro + ProcVersionSignature: Ubuntu 3.16.0-30.40~14.04.1-generic 3.16.7-ckt3 + RelatedPackageVersions: + linux-restricted-modules-3.16.0-30-generic N/A + linux-backports-modules-3.16.0-30-generic N/A + linux-firmware 1.127.11 + RfKill: Error: [Errno 2] No such file or directory + Tags: trusty + Uname: Linux 3.16.0-30-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: + + _MarkForUpload: True + dmi.bios.date: 01/21/2014 + dmi.bios.vendor: Dell Inc. + dmi.bios.version: 2.2.7 + dmi.board.name: 0T36VK + dmi.board.vendor: Dell Inc. + dmi.board.version: A01 + dmi.chassis.type: 25 + dmi.chassis.vendor: Dell Inc. + dmi.chassis.version: PowerEdge M1000e + dmi.modalias: dmi:bvnDellInc.:bvr2.2.7:bd01/21/2014:svnDellInc.:pnPowerEdgeM620:pvr:rvnDellInc.:rn0T36VK:rvrA01:cvnDellInc.:ct25:cvrPowerEdgeM1000e: + dmi.product.name: PowerEdge M620 + dmi.sys.vendor: Dell Inc. ** Attachment added: "BootDmesg.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323625/+files/BootDmesg.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] ProcInterrupts.txt
apport information ** Attachment added: "ProcInterrupts.txt" https://bugs.launchpad.net/bugs/1423631/+attachment/4323631/+files/ProcInterrupts.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1423631] [NEW] tap interface drops many packets on highload systems
Public bug reported: I use qemu-kvm in openstak. On highload hypervisor tap interface of net-highload gues drops many TX packages. Network options of qemu-system-x86_64 "... -netdev tap,fd=30,id=hostnet0,vhost=on,vhostfd=31 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=fa:16:3e:86:67:7b,bus=pci.0,addr=0x3..." Network domin config: tape4009073-0b Link encap:Ethernet HWaddr fe:16:3e:86:67:7b inet6 addr: fe80::fc16:3eff:fe86:677b/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1587622634 errors:0 dropped:0 overruns:0 frame:0 TX packets:1484106438 errors:0 dropped:460259 overruns:0 carrier:0 collisions:0 txqueuelen:500 RX bytes:877878711500 (877.8 GB) TX bytes:3071846828531 (3.0 TB) ** Affects: qemu-kvm (Ubuntu) Importance: Undecided Status: New ** Summary changed: - tap interface drors may packages on highload sysstems + tap interface drops many packages on highload systems ** Summary changed: - tap interface drops many packages on highload systems + tap interface drops many packets on highload systems -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/1423631 Title: tap interface drops many packets on highload systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1423631/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1310340] Re: live migration fails when use long hostname of a nova compute target host
** Also affects: horizon (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to horizon in Ubuntu. https://bugs.launchpad.net/bugs/1310340 Title: live migration fails when use long hostname of a nova compute target host To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1310340/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 1301393] Re: Live image snapshotting failure on icehouse
I heve same error after live migration: https://bugs.launchpad.net/nova/+bug/1309055 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to nova in Ubuntu. https://bugs.launchpad.net/bugs/1301393 Title: Live image snapshotting failure on icehouse To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nova/+bug/1301393/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
