Windows 7 Code RFH Windows2003+GPLPV packet-recei

[jinhuaco321]

hahn at univention
Feb 25, 2011,Windows 7 Code, 5:40 AM
Post #1 of 8 (81 views)
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Hello, one of our domU Windows system with GPL-PV driver regularly has problems with its network connection: After some time the VM does not receive any packets anymore. It's seems to be only a problem with receiving, since sending ARP packets still works: tcpdump -i vif147.0 -n arp | grep -FA1 --color XXX.X.71.77 If I try to ping the domU from the dom0, I only see the request going to the domU, but no answer: 13:49:17.106405 arp who-has XXX.X.71.77 tell XXX.X.12.47 If I try to ping some host from the domU,Office 2007 Ultimate, I see the request leaving the domU and the answer arriving for the domU, but no following ICMP messaged: 13:48:37.569618 arp who-has XXX.X.22.12 tell XXX.X.71.77 13:48:37.570002 arp reply XXX.X.22.12 is-at 00:16:3e:aa:ed:fa We have saved the state of the VM to a file,microsoft Office 2010 keygen, which when restored puts the domU back in the broken state. We collected some information, but now are stuck on how to best proceed, since we don't know enough of Xens and GPLPVs internal working. Can we (or someone els) diagnose,Office Home And Business 2010 Key, why received packages are not properly handled? Should we install the debug driver and what should we do when the problem next occurs. (I'm not afraid of debuggers and assembler,Buy Office 2010, but only on Linux and not much with Windows) Arch: amd64 Xen: 3.4.3 dom0: 2.6.32-17 (Debian) domU: Windows 2003 Service Pack 2 GPLPV: 0.11.0.238 Xen network device settings: Check checksum on RX packets: Enabled Checksum Offload: Enabled Large Send Offload: 61440 Locally Administrated Address: Not set MTU: 1500 Rx Interrupt Moderation (beta): Disabled Scatter/Gather: Enabled # xm network-list 147 Idx BE MAC Addr. handle state evt-ch tx-/rx-ring-ref BE-path 0 0 00:16:3e:af:fa:a5 0 4 9 15732/15741 /local/domain/0/backend/vif/147/0 # xenstore-ls /local/domain/0/backend/vif/147 0 = "" bridge = "XXXXXX0" domain = "XXXX010" handle = "0" uuid = "c550619d-3a4f-edfd-a22c-4b11a84b5728" script = "/etc/xen/scripts/vif-bridge" state = "4" frontend = "/local/domain/147/device/vif/0" mac = "00:16:3e:af:fa:a5" online = "1" frontend-id = "147" feature-sg = "1" feature-gso-tcpv4 = "1" feature-rx-copy = "1" feature-rx-flip = "0" feature-smart-poll = "1" hotplug-status = "connected" # netstat -s Ip: 2982289885 total packets received 2708867 with invalid addresses 0 forwarded 0 incoming packets discarded 2931918645 incoming packets delivered 1504949163 requests sent out 1 outgoing packets dropped 1 dropped because of missing route 2683 reassemblies required 1137 packets reassembled ok 2630 fragments received ok 5669 fragments created Icmp: 811639 ICMP messages received 400 input ICMP message failed. ICMP-Eingabehistogramm: destination unreachable: 4632 redirects: 619 echo requests: 806046 echo replies: 185 timestamp request: 44 address mask request: 67 876674 ICMP messages sent 0 ICMP messages failed ICMP-Ausgabehistogramm: destination unreachable: 70142 echo request: 452 echo replies: 806036 timestamp replies: 44 IcmpMsg: InType0: 185 InType3: 4632 InType5: 619 InType8: 806046 InType10: 2 InType13: 44 InType17: 67 InType37: 44 OutType0: 806036 OutType3: 70142 OutType8: 452 OutType14: 44 Tcp: 537972 active connections openings 141489 passive connection openings 3940 failed connection attempts 90207 connection resets received 9 connections established 2877624333 segments received 1502888618 segments send out 378040 segments retransmited 0 bad segments received. 703715 resets sent Udp: 132980 packets received 69241 packets to unknown port received. 0 packet receive errors 804134 packets sent UdpLite: TcpExt: 56 resets received for embryonic SYN_RECV sockets 514936 TCP sockets finished time wait in fast timer 35 time wait sockets recycled by time stamp 8541829 delayed acks sent 7168 delayed acks further delayed because of locked socket Quick ack mode was activated 52 times 1019468 packets directly queued to recvmsg prequeue. 2562618 bytes directly in process context from backlog 623450772 bytes directly received in process context from prequeue 1470140290 packet headers predicted 431554 packets header predicted and directly queued to user 6735803 acknowledgments not containing data payload received 1939166757 predicted acknowledgments 61400 times recovered from packet loss by selective acknowledgements Detected reordering 1 times using FACK 1 congestion windows fully recovered without slow start 5 congestion windows partially recovered using Hoe heuristic 691 congestion windows recovered without slow start after partial ack 302881 TCP data loss events TCPLostRetransmit: 6025 719 timeouts after SACK recovery 2 timeouts in loss state 347805 fast retransmits 19845 forward retransmits 5795 retransmits in slow start 3332 other TCP timeouts 94 SACK retransmits failed 77 DSACKs sent for old packets 42 DSACKs received 65852 connections reset due to unexpected data 87707 connections reset due to early user close 3 connections aborted due to timeout TCP ran low on memory 1 times TCPDSACKIgnoredOld: 40 TCPDSACKIgnoredNoUndo: 2 TCPSpuriousRTOs: 1 TCPSackShifted: 1746475 TCPSackMerged: 379798 TCPSackShiftFallback: 115430 IpExt: InMcastPkts: 880 InBcastPkts: 53279804 InOctets: -1233700460 OutOctets: 753104249 InMcastOctets: 26566 InBcastOctets: 1189547847 Sincerely Philipp Hahn -- Philipp Hahn Open Source Software Engineer hahn [at] univention Univention GmbH Linux for Your Business fon: +49 421 22 232- 0 Mary-Somerville-Str.1 28359 Bremen fax: +49 421 22 232-99 ** Besuchen Sie uns auf der CeBIT in Hannover ** ** Auf dem Univention Stand D36 in Halle 2 ** ** Vom 01. bis 05. M鋜z 2011 ** Attachments: signature.asc (0.19 KB)