| Summary: | libvirtError: internal error Cannot find suitable emulator for x86_64 | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Sandeep Patade <sandeep.patade> |
| Component: | libvirt | Assignee: | Libvirt Maintainers <libvirt-maint> |
| Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | urgent | Docs Contact: | |
| Priority: | low | ||
| Version: | 6.0 | CC: | acathrow, dallan, dyuan, jdenemar, mprivozn, mzhan, rwu, sandeep.patade, zhpeng |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-05-11 16:33:41 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
Sandeep, Thank you for taking the time to file a bug report. Please note, however, that bugzilla is not a method for obtaining product support. If you have a Red Hat support contract, please contact the support organization so that your request can be properly prioritized. Dave Have you ever enable the Virtualization support(vt-d or vt-x) in BIOS? Hi Rita, I couldn't find any option related to VT in BIOS. do you have an alternate option to install VM. Please guide Thanks Sandeep. Hi Rita, I couldn't find any option related to VT in BIOS. do you have an alternate option to install VM. Please guide What do you see in kernel logs after running the following command?
modprobe kvm-intel
Anyway, are you sure your CPU has virt support? I heard some Sony Vaio models were even equipped with virt artificially removed...
Here's the KVM FAQ entry on checking to see if virt extensions are present: http://www.linux-kvm.org/page/FAQ#How_can_I_tell_if_I_have_Intel_VT_or_AMD-V.3F (In reply to comment #7) > What do you see in kernel logs after running the following command? > modprobe kvm-intel > > Anyway, are you sure your CPU has virt support? I heard some Sony Vaio models > were even equipped with virt artificially removed... when i run the modprobe kvm-intel command it shows kvm 305081 0 Per the FAQ I referenced above, what is the output of: egrep '^flags.*(vmx|svm)' /proc/cpuinfo (In reply to comment #10) > Per the FAQ I referenced above, what is the output of: > > egrep '^flags.*(vmx|svm)' /proc/cpuinfo In /proc/cpuinfo shows the vmx flags. (In reply to comment #11) > (In reply to comment #10) > > Per the FAQ I referenced above, what is the output of: > > > > egrep '^flags.*(vmx|svm)' /proc/cpuinfo > > In /proc/cpuinfo shows the vmx flags. Can you please provide the output? pls see the output flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm dts tpr_shadow vnmi flexpriority flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm dts tpr_shadow vnmi flexpriority I can reproduce it with disabled vt-x vt-d. And if you did not enabled vt-x vt-d, i don't think this is a bug... Here are my steps: Step 1: check the hardware: [root@pengzhimoutest ~]# egrep '^flags.*(vmx|svm)' /proc/cpuinfo flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 x2apic popcnt aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid Step 2: Reboot the machine and disable vt-x vt-d in BIOS. Step 3: Login in the RHEL [root@zhpeng ~]# lsmod |grep kvm kvm 353603 0 [root@zhpeng ~]# modprobe kvm-intel ERROR: could not insert 'kvm_intel': Operation not supported ----> this is because i disabled the vt-x vt-d [root@zhpeng ~]# virt-manager --debug ... Error polling connection 'qemu:///system': internal error Cannot find suitable emulator for x86_64 .... libvirtError: internal error Cannot find suitable emulator for x86_64 ... So, Sandeep, will you pls check the BIOS config and this command result? # modprobe kvm-intel (In reply to comment #14) > I can reproduce it with disabled vt-x vt-d. > Step 2: > Reboot the machine and disable vt-x vt-d in BIOS. What is the output of egrep '^flags.*(vmx|svm)' /proc/cpuinfo after you disable vt-x and vt-d in the BIOS? Sandeep, I looked into this problem briefly as I've heard a number of people complain about KVM not working on Sony Vaio laptops. Does /var/log/messages contain the following line? kvm: disabled by bios (In reply to comment #15) > (In reply to comment #14) > > I can reproduce it with disabled vt-x vt-d. > > Step 2: > > Reboot the machine and disable vt-x vt-d in BIOS. > > What is the output of egrep '^flags.*(vmx|svm)' /proc/cpuinfo after you disable > vt-x and vt-d in the BIOS? Well, the output of cpuinfo is: [root@pengzhimoutest ~]# egrep '^flags.*(vmx|svm)' /proc/cpuinfo flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 x2apic popcnt aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid Nothing changed. And i got this in /var/log/messages: "Feb 9 10:53:52 zhpeng kernel: kvm: disabled by bios" Ok, good to know. Sandeep, I'd really like to hear from you as well. This is really looking like your laptop disables virt in the BIOS. Do you see 'disabled by bios' in /var/log/messages? I'm assuming, without proof, that is is the known Sony laptop problem (See, e.g., [1]), so I'm closing as INSUFFICIENT DATA. Sandeep, if you can find the 'disabled by bios' message in /var/log/messages, that would be confirmation. [1] http://software.intel.com/en-us/forums/showthread.php?t=63409 |
Hi, I m using RHEL 6.0 with Sony Vaio laptop (x86_64 bit processor) & want to configure KVM. below mentioned is Laptop hardware details for your refrence. #virsh nodeinfo System Information CPU model: x86_64 CPU(s): 2 CPU frequency: 1600 MHz CPU socket(s): 1 Core(s) per socket: 2 Thread(s) per core: 1 NUMA cell(s): 1 Memory size: 3891536 kB ---------------------------------------------------------------------------------- Module Information #lsmod |grep kvm kvm 305081 0 ---------------------------------------------------------------------------------- Whenever i start the VMM (Virtual Machine Manager) i get the below error message. Error polling connection 'qemu:///system': internal error Cannot find suitable emulator for x86_64 Error polling connection 'qemu:///system': internal error Cannot find suitable emulator for x86_64 Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/engine.py", line 440, in _tick conn.tick() File "/usr/share/virt-manager/virtManager/connection.py", line 1414, in tick newNets, self.nets) = self._update_nets() File "/usr/share/virt-manager/virtManager/connection.py", line 1277, in _update_nets lookup_func, build_class) File "/usr/share/virt-manager/virtManager/connection.py", line 1209, in _poll_helper if not check_support(): File "/usr/share/virt-manager/virtManager/connection.py", line 501, in is_network_capable virtinst.support.SUPPORT_CONN_NETWORK) File "/usr/lib/python2.6/site-packages/virtinst/support.py", line 574, in check_conn_support return _check_support(conn, feature, conn) File "/usr/lib/python2.6/site-packages/virtinst/support.py", line 443, in _check_support actual_drv_ver = _hv_ver(conn, uri) File "/usr/lib/python2.6/site-packages/virtinst/support.py", line 376, in _hv_ver ret = cmd(*args) File "/usr/lib64/python2.6/site-packages/libvirt.py", line 2823, in getVersion if ret == -1: raise libvirtError ('virConnectGetVersion() failed', conn=self) libvirtError: internal error Cannot find suitable emulator for x86_64 -------------------------------------------------------------------------------- please help me to resolve this issue. awating your reply Thanks... Sandeep.