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Bug 643844

Summary:	[kvm] guest machine pauses with unknown reason: kvm: unhandled exit 80000021
Product:	Red Hat Enterprise Linux 6	Reporter:	Haim <hateya>
Component:	qemu-kvm	Assignee:	Jes Sorensen <Jes.Sorensen>
Status:	CLOSED DUPLICATE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	high	Docs Contact:
Priority:	low
Version:	6.0	CC:	bazulay, gleb, hateya, jkurik, kwolf, mgoldboi, mkenneth, plyons, tburke, virt-maint, yeylon, ykaul
Target Milestone:	rc	Keywords:	TestBlocker
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-11-09 10:02:23 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Haim 2010-10-18 09:49:58 UTC

Description of problem:

guest machine pauses with no actual STOP reason, and when digging a bit and connecting to monitor socket, trying to continue it via QMP, it pauses immediately, thus, checking stdout reviles the following: 


hreads=1 -name chaos-pool-08 -uuid 97393260-23e3-4094-a5f3-6a758d52a0b6 -nodefconfig -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/chaos-pool-08.monitor,server,nowait -mon chardev=monitor,mode=control -rtc base=2010-9-14T17:21:59 -boot c -device virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pci.0,addr=0x4 -drive file=/rhev/data-center/6d849ebf-755f-4552-ad09-9a090cda105d/8c2b9f05-2839-41f3-93ce-aa839a61fa08/images/85f09f8f-9a90-4dc4-b3bc-aa30943782d8/13fe7936-420d-4082-8206-9d24d98714e3,if=none,id=drive-virtio-disk0,boot=on,format=qcow2,serial=c4-b3bc-aa30943782d8,cache=none,werror=stop,rerror=stop -device virtio-blk-pci,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0 -drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=22,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:1a:4a:16:01:59,bus=pci.0,addr=0x3 -chardev socket,id=channel0,path=/var/run/vdsm/vmchannels/chaos-pool-08.com.redhat.rhevm.vdsm,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=0,chardev=channel0,name=com.redhat.rhevm.vdsm -usb -device usb-tablet,id=input0 -vnc 0:5,password -k en-us -vga cirrus 
LC_ALL=C PATH=/sbin:/usr/sbin:/bin:/usr/bin QEMU_AUDIO_DRV=none /usr/libexec/qemu-kvm -S -M rhel6.0.0 -cpu Conroe -enable-kvm -m 512 -smp 1,sockets=1,cores=1,threads=1 -name chaos-pool-08 -uuid 97393260-23e3-4094-a5f3-6a758d52a0b6 -nodefconfig -nodefaults -chardev socket,id=monitor,path=/var/lib/libvirt/qemu/chaos-pool-08.monitor,server,nowait -mon chardev=monitor,mode=control -rtc base=2010-9-17T12:18:21 -boot c -device virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pci.0,addr=0x4 -drive file=/rhev/data-center/6d849ebf-755f-4552-ad09-9a090cda105d/8c2b9f05-2839-41f3-93ce-aa839a61fa08/images/85f09f8f-9a90-4dc4-b3bc-aa30943782d8/13fe7936-420d-4082-8206-9d24d98714e3,if=none,id=drive-virtio-disk0,boot=on,format=qcow2,serial=c4-b3bc-aa30943782d8,cache=none,werror=stop,rerror=stop -device virtio-blk-pci,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0 -drive if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -netdev tap,fd=22,id=hostnet0 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:1a:4a:16:01:59,bus=pci.0,addr=0x3 -chardev socket,id=channel0,path=/var/run/vdsm/vmchannels/chaos-pool-08.com.redhat.rhevm.vdsm,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=0,chardev=channel0,name=com.redhat.rhevm.vdsm -usb -device usb-tablet,id=input0 -vnc 0:1,password -k en-us -vga cirrus 
kvm: unhandled exit 80000021
kvm_run returned -22
kvm: unhandled exit 80000021
kvm_run returned -22
kvm: unhandled exit 80000021
kvm_run returned -22
kvm: unhandled exit 80000021
kvm_run returned -22
kvm: unhandled exit 80000021
kvm_run returned -22
kvm: unhandled exit 80000021
kvm_run returned -22
kvm: unhandled exit 5
kvm_run returned -22
kvm: unhandled exit 80000021
kvm_run returned -22
(END) 

notes:

1) issue was investigated by both Kwolf and myself.
2) issue is reproducible, and happens consistently (start 5 vms, 1 goes to 
   pause) using different hosts and different guest processes. 
3) host runs over RHEL6, and guest machine is RHEL5. 
4) libvirt STOP

10:29:01.548: debug : qemuMonitorJSONIOProcessEvent:99 : handle STOP handler=0x478750 data=(nil)
10:29:01.548: debug : qemuMonitorEmitStop:808 : mon=0x7fd16400a3f0
10:29:01.549: debug : virDomainFree:2215 : domain=0x7fd170010120
10:29:01.549: debug : qemuHandleDomainStop:1322 : Transitioned guest chaos-pool-08 to paused state due to unknown event
10:29:01.549: debug : qemuMonitorJSONIOProcess:188 : Total used 81 bytes out of 81 available in buffer
10:29:01.549: debug : remoteRelayDomainEventLifecycle:118 : Relaying domain lifecycle event 4 0
10:29:01.549: debug : virDomainFree:2215 : domain=0x7fd17c001990
10:29:01.550: debug : remoteRelayDomainEventLifecycle:118 : Relaying domain lifecycle event 3 0


information: 

2.6.32-71.el6.x86_64
libvirt-0.8.1-27.el6.x86_64
vdsm-4.9-18.2.x86_64
device-mapper-multipath-0.4.9-30.el6.x86_64
lvm2-2.02.72-8.el6.x86_64
qemu-kvm-0.12.1.2-2.113.el6.x86_64
iptables-1.4.7-3.el6.x86_64

Comment 3 Gleb Natapov 2010-10-20 10:35:08 UTC

Install debuginfo qemu-kvm rpm, reproduce, show to me.

Comment 4 Gleb Natapov 2010-10-20 10:45:01 UTC

Also when you are saying "issue is reproducible using different hosts". Can you list cpu types on those hosts (cat /proc/cpuinfo)?

Comment 5 Haim 2010-10-20 14:19:32 UTC

(In reply to comment #3)
> Install debuginfo qemu-kvm rpm, reproduce, show to me.

provided.

Comment 6 Gleb Natapov 2010-10-21 09:24:14 UTC

nmi_watchdog tries to inject NMI while NMI is blocked by STI.

Comment 7 Gleb Natapov 2010-11-09 10:02:23 UTC


*** This bug has been marked as a duplicate of bug 616296 ***