Bugs item #2638990, was opened at 2009-02-26 01:35 Message generated for change (Comment added) made by avik You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2638990&group_id=180599 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None >Status: Pending Resolution: None Priority: 6 Private: No Submitted By: David Rasche (drasche2) Assigned to: Nobody/Anonymous (nobody) Summary: Segfault 284 Initial Comment: Host (2) Intel Xeon (E5430) Quad Core Processors (2.66GHz) 16G mem Host OS: Ubuntu 8.10 (64bit) kvm-72 libvirt 0.4.4 Guest OS Win2k3 Server (32 bit) After running for 8 to 48 hours, Win2k3 guest system crashes with no warning. Syslog shows the following segmentation fault: Feb 25 16:12:02 host-b kernel: [448190.415857] kvm[25511]: segfault at 284 ip 000000000043 386f sp 00007fff97fa3a70 error 4 in kvm[400000+19e000] this error has been confirmed on 2 different machines with exactly the same setup. We are running KVM through libvirt with the following xml setup. <domain type='kvm'> <name>exchange</name> <uuid>e8d93082-c1db-426c-9ad3-ae651095ceb5</uuid> <memory>4096000</memory> <currentMemory>4096000</currentMemory> <vcpu>3</vcpu> <os> <type>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> </features> <clock offset='localtime'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/bin/kvm</emulator> <disk type='file' device='disk'> <source file='/mnt/vg0/lvol3/exchange.qcow2'/> <target dev='hda' bus='ide'/> </disk> <disk type='block' device='disk'> <source dev='/dev/vg1/lv_exchdb'/> <target dev='hdb' bus='ide'/> </disk> <disk type='file' device='cdrom'> <target dev='hdc' bus='ide'/> <readonly/> </disk> <disk type='block' device='disk'> <source dev='/dev/vg2/lv_exchlog'/> <target dev='hdd' bus='ide'/> </disk> <interface type='bridge'> <mac address='00:0c:29:cf:71:e4'/> <source bridge='br0'/> </interface> <input type='tablet' bus='usb'/> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='5900' listen='127.0.0.1'/> </devices> </domain> ---------------------------------------------------------------------- >Comment By: Avi Kivity (avik) Date: 2009-04-30 21:36 Message: Please generate a core dump and post a stack trace: $ gdb /path/to/qemu core (gdb) backtrace ---------------------------------------------------------------------- Comment By: Simon Jagoe (ivanvimes) Date: 2009-04-30 21:26 Message: Sorry about the formatting of the kvm commandline I posted, I have re-formatted it so that sourceforge does not automagically wrap it: /usr/bin/kvm -S -M pc -m 1024 -smp 1 -name partridge \ -monitor pty -boot c \ -drive file=/dev/hare/partridge_root,if=ide,index=0,boot=on \ -drive file=/dev/hare/partridge_var,if=ide,index=1 \ -drive file=/dev/hare/partridge_opt,if=ide,index=2 \ -drive file=/dev/hare/partridge_home,if=ide,index=3 \ -net nic,macaddr=00:16:3e:30:99:7c,vlan=0 \ -net tap,fd=17,script=,vlan=0,ifname=vnet3 \ -serial none -parallel none -usb -vnc 127.0.0.1:0 ---------------------------------------------------------------------- Comment By: Simon Jagoe (ivanvimes) Date: 2009-04-30 21:24 Message: Thanks for the reply. The libvirt XML I posted calls kvm as follows: /usr/bin/kvm -S -M pc -m 1024 -smp 1 -name partridge -monitor pty -boot c \ -drive file=/dev/hare/partridge_root,if=ide,index=0,boot=on \ -drive file=/dev/hare/partridge_var,if=ide,index=1 \ -drive file=/dev/hare/partridge_opt,if=ide,index=2 \ -drive file=/dev/hare/partridge_home,if=ide,index=3 \ -net nic,macaddr=00:16:3e:30:99:7c,vlan=0 -net tap,fd=17,script=,vlan=0,ifname=vnet3 \ -serial none -parallel none -usb -vnc 127.0.0.1:0 ---------------------------------------------------------------------- Comment By: Brian Jackson (iggy_cav) Date: 2009-04-30 18:47 Message: For those of us that don't use/speak libvirt, what does command line is it using? ---------------------------------------------------------------------- Comment By: Simon Jagoe (ivanvimes) Date: 2009-04-30 11:09 Message: I am running an Ubuntu Hardy guest in KVM-72 (Ubuntu Intrepid host), and got a similar segfault: Apr 30 04:16:37 hare kernel: [726803.676199] kvm[4930]: segfault at 284 ip 000000000043386f sp 00007fff1d240dd0 error 4 in kvm[400000+19e000] My hardware details are as follows: HP ProLiant ML110 G5 Intel Xeon CPU 3065 2.33GHz (Dual core) 4GB RAM I have four guests on the system, all Ubuntu Hardy. Only one of these appears to have crashed. It is allocated one VCPU and 1024 MB of RAM. The others are: * 2 VCPUs & 1024MB RAM * 2 VCPUs & 256MB RAM * 1 VCPU & 256MB RAM Additionally, I am also using libvirt. My (crashed) domain's XML looks like this: <domain type='kvm'> <name>partridge</name> <uuid>4f3bae26-359b-f633-9476-9d95fc2160b0</uuid> <memory>1048576</memory> <currentMemory>1048576</currentMemory> <vcpu>1</vcpu> <os> <type>hvm</type> <boot dev='hd'/> </os> <features> <acpi/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/bin/kvm</emulator> <disk type='block' device='disk'> <source dev='/dev/hare/partridge_root'/> <target dev='hda' bus='ide'/> </disk> <disk type='block' device='disk'> <source dev='/dev/hare/partridge_home'/> <target dev='hdd' bus='ide'/> </disk> <disk type='block' device='disk'> <source dev='/dev/hare/partridge_opt'/> <target dev='hdc' bus='ide'/> </disk> <disk type='block' device='disk'> <source dev='/dev/hare/partridge_var'/> <target dev='hdb' bus='ide'/> </disk> <interface type='bridge'> <mac address='00:16:3e:30:99:7c'/> <source bridge='br0'/> </interface> <input type='mouse' bus='ps2'/> <graphics type='vnc' port='5900' listen='127.0.0.1'/> </devices> </domain> Please let me know if I can provide more information on this. I will likely upgrade to Ubuntu Jaunty this week (and with it KVM-84). ---------------------------------------------------------------------- Comment By: David Rasche (drasche2) Date: 2009-03-09 19:07 Message: I just updated one of our machines with KVM-84 and I am getting the exact same segfault as reported above. This is cricital. We are trying to run a win2k3 server with exchange and it keeps crashing. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2638990&group_id=180599 -- 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
