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
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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.
----------------------------------------------------------------------
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