Hello. I am Hae-woo Park, a user of kvm. In these days, I cannot use kvm due to its bug. ( My kernel version is 3.0.0, but I also tried 3.1rc ) I think it is a kernel bug, because my qemu-kvm is working with linux-2.6.32. ( I use Debian testing distribution. ) When I start kvm, I get the following message. My qemu-kvm version is 0.14.1. ( When I tried qemu-kvm 0.15.1, it just crashes with a segmentation fault. ) ------- 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 ------- 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 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 stepping : 3 cpu MHz : 2700.000 cache size : 512 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock bogomips : 5439.31 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate processor : 1 vendor_id : AuthenticAMD cpu family : 16 model : 2 model name : AMD Athlon(tm) 7750 Dual-Core Processor stepping : 3 cpu MHz : 2700.000 cache size : 512 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 5 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock bogomips : 5440.41 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 48 bits physical, 48 bits virtual power management: ts ttp tm stc 100mhzsteps hwpstate ------- There is one who suffers from a similar problem in Ubuntu Forum; http://ubuntuforums.org/showthread.php?t=1773187 But there isn't any detailed info. How can I handle this bug ? Please help me. Thank you. Regards, Hae-woo Park. -- 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