>The PCI bus has only 32 slots (devices), 3 taken by chipset + vga, and >a 4th if you have, for example, a virtio disk. Are you sure these are >33 PCI devices and not 33 PCI functions? No, not sure. Apparently my statement was based on an uninformed assumption. I tested using a VM that had 30 (removable-per-web-interface) attachments, and added 3x IDE HDDs to bring it above what I thought was 32 devices: 28 virtio NICs 1 IDE CD-ROM 1 virtio HDD +3 IDE HDDs I could add IDE up past 32 and it would start, as soon as there were more than 28 NICs with or without the 3 IDE HDDs, start would fail. On Wed, 06 Oct 2010 10:18 -0700, "Chris Wright" <chrisw@xxxxxxxxxxxx> wrote: > * linux_kvm@xxxxxxxxxxxx (linux_kvm@xxxxxxxxxxxx) wrote: > > Hi again everybody, > > > > One of the admins at the ProxmoxVE project was gracious enough to > > quickly release a package including the previously discussed change to > > allow up to 32 NICs in qemu. > > You mean they patched qemu to increase the MAX_NICS constant? Nice to > get the quick turn around. > > Te better choice is to use a newer command line. Not only does it avoid > the MAX_NICS limitation, but it also enables standard virtio-net offload > accelerations. > > > For future reference the .deb is here: > > ftp://download.proxmox.com/debian/dists/lenny/pvetest/binary-amd64/pve-qemu-kvm_0.12.5-2_amd64.deb > > > > Upon creating & running the VM with the newly patched qemu-kvm app > > installed, I found a NIC limitation remained in place, presumably > > imposed by some other aspect of the environment. > > > > The machine would start when it had 33 PCI devices, as long as no more > > than 28 of them were NICs. > > The PCI bus has only 32 slots (devices), 3 taken by chipset + vga, and > a 4th if you have, for example, a virtio disk. Are you sure these are > 33 PCI devices and not 33 PCI functions? > > thanks, > -chris > -- 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
