On 22.10.2011 09:42, Hae-woo Park wrote: > Package: qemu-kvm > Version: 0.14.1+dfsg-4 > > Hello. > I really like this package, qemu-kvm. > However, in these days, I cannot use it due to its bug. > > When I start kvm, I get the following message. > > ------- > kvm_create_vm: Device or resource busy > Could not initialize KVM, will disable KVM support > kvm_set_phys_mem: error unregistering overlapping slot: Invalid argument > Aborted > -------
This appears to be a bug in qemu-kvm - the last "Aborted" message. Please retry with 0.15 version which were uploaded into unstable just yesterday. The bug appears to be minor - it should not crash in this case but continue running without kvm enabled (which is, obviously, very slow). > The kvm modules seem well loaded. > ------- > Module Size Used by > kvm_amd 46898 0 > kvm 228179 1 kvm_amd > > dmesg: > [ 3.958082] kvm: Nested Virtualization enabled > [ 3.958085] kvm: Nested Paging enabled > ------- > > When executing kvm, dmesg presents a simple message: > [ 225.730117] kvm: enabling virtualization on CPU0 failed And this is a bug most likely in your BIOS. Check if virtualization is enabled in the BIOS. Remember that in order for this change to take effect (virtualisation in bios enable/disable), you have to power-cycle the machine in question, simple reboot is not enough. If it is properly enabled and the thing still does not work, I'd suggest you to post to k...@vger.kernel.org mailing list, where kvm is being discussed/developed - I can't help here myself since I don't know this area well enough and I don't want to act as a broken phone between you and developers. > And my /proc/cpuinfo is shown as follows: > > ------- > processor: 0 > vendor_id: AuthenticAMD > cpu family: 16 > model: 2 > model name: AMD Athlon(tm) 7750 Dual-Core Processor [] > I think I've got this error since I upgraded the linux kernel to version 3.x, > but I am not sure. :< It is very unlikely that the problem is kernel-specific. It is possible, yes, but unlikely. But I guess it's trivial to verify - just install an older (2.6.32?) kernel and see if you can reproduce the issue. > There is one who suffers from a similar problem in Ubuntu Forum; > http://ubuntuforums.org/showthread.php?t=1773187 Well, there's almost no information in that thread, so nothing to say too. > How can I handle this bug ? > Please help me. So verify if the problem is specific to some kernel version or is general on your machine. If different kernel shows different behavour, the next step will be to try to find the change which is causing this -- git bisect will help here. If another kernel shows the same issue, the problem is in hardware most likely. In either case, it is kernel<=>hardware problem, and should be addressed in kvm@vger mailinglist with all the details you can provide. Thanks, /mjt -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
