I'm having a (similar?) problem running KVMs on a Hardy server. Packets are intermittently dropped somewhere between layers 2 and 3, i.e. they are captured arriving at the network interface by tcpdump but they don't get recv'd by socket code or logged with iptables. Is this problem related somehow to Bug #332156? The KVMs have been upgraded to Karmic btw -- I don't know if that makes any difference. Details are below:
Physical Server: Linux oghma 2.6.29 #3 SMP Tue Apr 14 18:17:50 EDT 2009 x86_64 GNU/Linux [Ubuntu-Server 8.04.1 _Hardy Heron_ - Release amd64 (20080701)] Dual quad-core processors 0-7 w/ 8 GB ram processor : 7 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Xeon(R) CPU E5405 @ 2.00GHz stepping : 6 cpu MHz : 1994.655 cache size : 6144 KB ... KVM Instances: Linux airnet-1 2.6.31-22-server #63-Ubuntu SMP Thu Aug 19 01:25:01 UTC 2010 x86_64 GNU/Linux Running Ubuntu-Server Karmic & iptables v1.4.4 processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 2 model name : QEMU Virtual CPU version 0.9.1 stepping : 3 cpu MHz : 1994.655 cache size : 2048 KB fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pse36 clflush mmx fxsr sse sse2 syscall nx lm up rep_good pni hypervisor bogomips : 3989.31 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: -- Network issues with hardy guests/hosts, using default nic and virtio https://bugs.launchpad.net/bugs/332156 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
