On 02/10/2013 13:27, Stefan G. Weichinger wrote:
I try to set up KVM/QEMU on that new and shiny AMD server 24 cores of Opteron: processor : 23 vendor_id : AuthenticAMD cpu family : 21 model : 2 model name : AMD Opteron(tm) Processor 6344 nice I want gentoo-sources-3.10.7 (stable and long term supported) or 3.10.7-r1 (not yet on the machine). I don't get /dev/kvm :-( Right now I want this as a module "kvm_amd" or so. # zgrep -i kvm /proc/config.gz CONFIG_HAVE_KVM=y CONFIG_HAVE_KVM_IRQCHIP=y CONFIG_HAVE_KVM_IRQ_ROUTING=y CONFIG_HAVE_KVM_EVENTFD=y CONFIG_KVM_APIC_ARCHITECTURE=y CONFIG_KVM_MMIO=y CONFIG_KVM_ASYNC_PF=y CONFIG_HAVE_KVM_MSI=y CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y CONFIG_KVM=m CONFIG_KVM_INTEL=m CONFIG_KVM_AMD=m I compile the kernel with Canek's kerninst-script (see other thread). kvm_amd does not load and gives me dozens of: # dmesg | grep kvm | head [ 13.460423] kvm_amd: Unknown symbol kvm_rdpmc (err 0) [ 13.460429] kvm_amd: Unknown symbol kvm_read_guest_page (err 0) [ 13.460437] kvm_amd: Unknown symbol kvm_requeue_exception (err 0) [ 13.460439] kvm_amd: Unknown symbol kvm_exit (err 0) [ 13.460441] kvm_amd: Unknown symbol kvm_init (err 0) [ 13.460444] kvm_amd: Unknown symbol kvm_enable_efer_bits (err 0) [ 13.460448] kvm_amd: Unknown symbol kvm_fast_pio_out (err 0) [ 13.460453] kvm_amd: Unknown symbol gfn_to_page (err 0)
Run "modinfo kvm kvm-amd" and check for discrepancies between the details of the two, especially regarding the vermagic field.
*sigh* With the kernel booted I now do: cd /usr/src/linux make clean modules modules_install
I would suggest "make mrproper" to clean the source tree. Ensure that the .config has been backed up because it will be deleted as a result.
and see if I can load the module(s) then. In general I am rather disappointed by the performance of this server. I expected way more *bang* for the bucks ... still unsure if that clocksource-topic might be relevant or if my kernel config is somehow stupid. Stefan
--Kerin
