I tried this evening to connect the vm directly to the ethernet adapter, not a bridge in between (the bridge was completely removed). This worked for a couple of hours then it was gone again. The 3 other network adapters of that vm/guest were fine! On Sun, Jul 21, 2013 at 08:08:53PM +0200, folkert wrote: > Nope: it failed again. > > On Sun, Jul 21, 2013 at 05:20:08PM +0200, folkert wrote: > > After the mail below I rebooted the whole system (e.g. the host). Since > > then the guest runs fine. But this problem happened before so I'm not > > confident all is fine now. > > > > On Sun, Jul 21, 2013 at 03:38:56AM +0200, folkert wrote: > > > More details: pinging from within the guest gives > > > > > > ping: sendmsg: No buffer space available > > > ping: sendmsg: No buffer space available > > > ping: sendmsg: No buffer space available > > > > > > I verified that there are no processes using huge amounts of sockets > > > (lsof -n | grep IPv | wc -l tells me there are 755 in use). > > > > > > I also tried disabling STP on the bridge (did not help). > > > > > > The mac address of the interface in the guest does not show up in the > > > brctl showmacs br1 output. > > > > > > Currently the problem starts after not more than 5 minutes of uptime so > > > it seems to get worse. No changes done, only the 10th reboot or so in > > > the last couple of hours. The host has been up for 16 days. > > > > > > No messages in dmesg on the host and also not in the guest. > > > > > > It does not look as a memory usage problem: the guest has 5GB of ram > > > free (it just started up) and swap is completely empty. 0.6GB of > > > buffers. > > > > > > On Sun, Jul 21, 2013 at 02:57:57AM +0200, folkert wrote: > > > > Hi, > > > > > > > > I have a guest system with 4 virtual networks, all virtio. > > > > 3 of them connected to bridges, 1 to a virtual network. > > > > Regularly (mostly once in a few days but last 2 days already 4 times) > > > > one specific interface stops working. The only thing then that helps is > > > > restarting the virtual machine. When this happens, every packet send out > > > > increases the "dropped packets" counter in the guest. All other guests > > > > using this bridge work fine, including the host itself. > > > > I verified that it is not a firewall problem (disabled the iptables > > > > script). > > > > I did some googling and found the suggestion of installing vhost_net on > > > > the host and the suggestion to use the e1000 emulation but both did not > > > > help. This happens with 3.2, 3.8, 3.9 and 3.10 kernels in the guest. > > > > Same thing for the host. > > > > > > > > pxe-qemu 1.0.0+git-20120202.f6840ba-3 > > > > kvm 1:1.1.2+dfsg-6 > > > > qemu 1.1.2+dfsg-6a > > > > qemu-keymaps 1.1.2+dfsg-6a > > > > qemu-kvm 1.1.2+dfsg-6 > > > > qemu-system 1.1.2+dfsg-6a > > > > qemu-user 1.1.2+dfsg-6a > > > > qemu-utils 1.1.2+dfsg-6a > > > > > > > > Any ideas? > > > > > > > > > > > > Folkert van Heusden > > > > > > > > -- > > > > MultiTail is een flexibele tool voor het volgen van logfiles en > > > > uitvoer van commando's. Filteren, van kleur voorzien, mergen, > > > > 'diff-view', etc. http://www.vanheusden.com/multitail/ > > > > ---------------------------------------------------------------------- > > > > Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com > > > > > > > > > Folkert van Heusden > > > > > > -- > > > MultiTail na wan makriki wrokosani fu tan luku den logfile nanga san > > > den commando spiti puru. Piki puru spesrutu sani, wroko nanga difrenti > > > kroru, tya kon makandra, nanga wan lo moro. > > > http://www.vanheusden.com/multitail/ > > > ---------------------------------------------------------------------- > > > Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com > > > -- > > > To unsubscribe from this list: send the line "unsubscribe kvm" in > > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > > > Folkert van Heusden > > > > -- > > Multitail est un outil permettant la visualisation de fichiers de > > journalisation et/ou le suivi de l'exécution de commandes. Filtrage, > > mise en couleur de mot-clé, fusions, visualisation de différences > > (diff-view), etc. http://www.vanheusden.com/multitail/ > > ---------------------------------------------------------------------- > > Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com > > -- > > To unsubscribe from this list: send the line "unsubscribe kvm" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > Folkert van Heusden > > -- > Curious about the inner workings of your car? Then check O2OO: it'll > tell you all that there is to know about your car's engine! > http://www.vanheusden.com/O2OO/ > ---------------------------------------------------------------------- > Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html Folkert van Heusden -- To MultiTail einai ena polymorfiko ergaleio gia ta logfiles kai tin eksodo twn entolwn. Prosferei: filtrarisma, xrwmatismo, sygxwneysi, diaforetikes provoles. http://www.vanheusden.com/multitail/ ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
