http://bugzilla.novell.com/show_bug.cgi?id=626654 http://bugzilla.novell.com/show_bug.cgi?id=626654#c0 Summary: kernel has some unclear problems with hypervisor Classification: openSUSE Product: openSUSE 11.3 Version: Final Platform: x86-64 OS/Version: Other Status: NEW Severity: Major Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: nettezzaumanaa@gmail.com QAContact: qa@suse.de Found By: --- Blocker: --- Created an attachment (id=379230) --> (http://bugzilla.novell.com/attachment.cgi?id=379230) all /var/tmp/logs .. User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.10) Gecko/20100506 SUSE/3.5.10-0.1 Firefox/3.5.10 hi there, i've found very severe problem with kernel while using hypervisor (kvm for example) .. i experienced weird acting like big performance fluctuations are .. i also experienced in 11.3 that kernel has some troubles with netstack in kvm (qemu-kvm) .. currently i am unable to run properly under netstack while ran qemu-kvm .. i tested kvm package from repo oss and from here http://download.opensuse.org/repositories/Virtualization/openSUSE_11.3/ .. same behaviour occurs .. sorry for vague description but this issue seems very unclear to me .. i attached all my logs .. i need to mention several things left: 1) i don't use apparmor 2) i tested it with enabled ipv6 and also with disabled one 3) qemu in pure emulation mode runs fine 4) i didn't test it in 32 bit mode 5) i was so confused that i tested this also in debian and fedora .. it ran reasonable there .. feel free to request anything what you could consider as useful. regards, daniel Reproducible: Always Steps to Reproduce: 1. install kvm package (0.12.3-2.9 is current version), find some bootable iso . i tested it with solaris and knoppix .. solaris was normally installed 2. run virtual machine, i've been using following 100% working method for configuring ifaces: -net nic,model=e1000,vlan=1 -net tap,vlan=1,ifname=knic0,script=no check, that knic0 iface is created (via `ip a`) 3. set up in guest/host system interface (e1000g0 in solaris, eth0 in knoppix), assign address and put iface up
Linux: ip a a 192.168.100.100/24 dev eth0 ip l set eth0 up
Solaris: ifconfig e1000g0 plumb ifconfig e1000g0 192.168.100.100 netmask + broadcast +
kvm host system: ip a a 192.168.100.200/24 dev knic0 ip l set knic0 up
4) now ping and network *must* works .. but in case of kvm not i was been able to catch packets by using tcpdump from host system over knic0 but vice versa not .. nothing had gone through knic0 to guest from host .. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.