From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matias Aguirre Subject: Re: kvm 76 - open /dev/kvm: No such device or address Date: Wed, 08 Oct 2008 02:49:55 -0300 Message-ID: <48EC4A03.1040807@matware.com.ar> References: <48EBE892.5090405@matware.com.ar> <48EBED8E.4030306@il.qumranet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Dor Laor Return-path: Received: from 78-56-16-190.fibertel.com.ar ([190.16.56.78]:58882 "EHLO dragon.matware.com.ar" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751299AbYJHFu2 (ORCPT ); Wed, 8 Oct 2008 01:50:28 -0400 In-Reply-To: <48EBED8E.4030306@il.qumranet.com> Sender: kvm-owner@vger.kernel.org List-ID: Dor Laor wrote: > Matias Aguirre wrote: >> Hi all, >> >> Im using 2.6.26.5 kernel and slackware-current distribution. I was >> compiled the latest 76 version of kvm and when i run kvm i return >> this error: >> >> open /dev/kvm: No such device or address >> Could not initialize KVM, will disable KVM support >> >> The module is already loaded: >> >> # lsmod >> Module Size Used by >> kvm_intel 33984 0 >> kvm 116156 1 kvm_intel >> nvidia 6886800 26 >> >> And my CPU have VM support. >> >> # cat /proc/cpuinfo | grep vmx >> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr >> pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm >> pbe nx lm constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx >> smx est tm2 ssse3 cx16 xtpr lahf_lm >> flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr >> pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm >> pbe nx lm constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx >> smx est tm2 ssse3 cx16 xtpr lahf_lm >> >> And the file permission: >> >> # dir /dev/kvm >> crw-rwxr-- 1 root kvm 250, 0 2008-10-07 18:22 /dev/kvm >> >> >> Any help? >> >> Thanks >> > chmod a+wx /dev/kvm will do the trick > Regards, Dor > # dir kvm crwxrwxrwx 1 root kvm 250, 0 2008-10-07 18:22 kvm $ qemu mtwVirtual/slackware.img open /dev/kvm: No such device or address Could not initialize KVM, will disable KVM support Same issue. Its rarely, before i can work with kvm without problems but suddenly it not work any more.