Description of problem: My guest os shutdown after running for about ten days ,caused by the qemu-kvm segfault of the host here the dmesg of host : kvm: 17827: cpu0 unimplemented perfctr wrmsr: 0x186 data 0x130079 kvm: 17827: cpu0 unimplemented perfctr wrmsr: 0xc1 data 0xffe383d8 kvm: 17827: cpu0 unimplemented perfctr wrmsr: 0x186 data 0x530079 kvm: 17827: cpu1 unimplemented perfctr wrmsr: 0x186 data 0x130079 kvm: 17827: cpu1 unimplemented perfctr wrmsr: 0xc1 data 0xffe383d8 kvm: 17827: cpu1 unimplemented perfctr wrmsr: 0x186 data 0x530079 kvm: 17827: cpu2 unimplemented perfctr wrmsr: 0x186 data 0x130079 kvm: 17827: cpu2 unimplemented perfctr wrmsr: 0xc1 data 0xffe383d8 kvm: 17827: cpu2 unimplemented perfctr wrmsr: 0x186 data 0x530079 kvm: 17827: cpu3 unimplemented perfctr wrmsr: 0x186 data 0x130079 ISO 9660 Extensions: Microsoft Joliet Level 3 ISO 9660 Extensions: RRIP_1991A qemu-kvm[17827]: segfault at 0000000001803030 rip 00000000004a1c26 rsp 00007fff9118ac90 error 4 host os is rtel5.5 ]# rpm -qa | grep kvm etherboot-zroms-kvm-5.4.4-13.el5 kmod-kvm-83-164.el5 kvm-qemu-img-83-164.el5 kvm-83-164.el5 kvm-tools-83-164.el5 guest os is rhel5.3, Version-Release number of selected component (if applicable): host os : the cpu is xeon E7520 4x4cores the cpuinfo processor : 15 vendor_id : GenuineIntel cpu family : 6 model : 46 model name : Intel(R) Xeon(R) CPU E7520 @ 1.87GHz stepping : 6 cpu MHz : 1067.000 cache size : 18432 KB physical id : 3 siblings : 4 core id : 11 cpu cores : 4 apicid : 118 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes 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 syscall nx rdtscp lm constant_tsc nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm bogomips : 3733.08 clflush size : 64 cache_alignment : 64 address sizes : 44 bits physical, 48 bits virtual power management: [8] How reproducible: Steps to Reproduce: if happens twice in 20days Actual results: Expected results: Additional info:
Install kvm-debuginfo-83-164.el5.x86_64.rpm and post backtrace please. Or better yet put core file somewhere.
ok, I will install the debuginfo package later . but the segfault happens not frequently, for about 10+ days
(In reply to comment #2) > ok, I will install the debuginfo package later . > > but the segfault happens not frequently, for about 10+ days Can you meanwhile provide the command line you use to start kvm?
The guest is started by virt-manager,, here is the log in /var/lib/libvirt LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin HOME=/ /usr/libexec/qemu-kvm -S -M rhel5.4.0 -m 25000 -smp 4 -name vm2-kylin-app2 -uuid 766da1ed-afcd-ee79-e3d1-c475429bde3c -no-kvm-pit-reinjection -monitor pty -pidfile /var/run/libvirt/qemu//vm2-kylin-app2.pid -boot c -drive file=,if=ide,media=cdrom,index=2 -drive file=/kvm/lost+found/vm2-kylin-app1-112,if=ide,index=0,boot=on -drive file=/dev/sda7,if=virtio,index=0 -net nic,macaddr=54:52:00:51:2d:f6,vlan=0,model=e1000 -net tap,fd=18,script=,vlan=0,ifname=vnet0 -net nic,macaddr=54:52:00:19:30:97,vlan=1,model=e1000 -net tap,fd=19,script=,vlan=1,ifname=vnet1 -serial none -parallel none -usb -vnc 127.0.0.1:0 -k en-us char device redirected to /dev/pts/1
-m 25000 is ~25G do you have so much memory?
The host machine is a 4U server : Intel XEON MP E7520*4 32*4GB 4*300GB SAS RAID5 two NICs, create two bridge network : eth0->br0, eth1->br1 In the guest ,there are two virtual netcards : br0->eth0,br1->eth1
This request was evaluated by Red Hat Product Management for inclusion in the current release of Red Hat Enterprise Linux. Because the affected component is not scheduled to be updated in the current release, Red Hat is unfortunately unable to address this request at this time. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
This request was erroneously denied for the current release of Red Hat Enterprise Linux. The error has been fixed and this request has been re-proposed for the current release.