Bug 653898
Summary: | [kvm] [DW] guest machine hangs after migration using NFS with hard mounts | |||
---|---|---|---|---|
Product: | Red Hat Enterprise Linux 5 | Reporter: | Haim <hateya> | |
Component: | kvm | Assignee: | Juan Quintela <quintela> | |
Status: | CLOSED WONTFIX | QA Contact: | Virtualization Bugs <virt-bugs> | |
Severity: | high | Docs Contact: | ||
Priority: | low | |||
Version: | 5.5.z | CC: | abaron, bazulay, bcao, chellwig, danken, hateya, iheim, juzhang, kwolf, mgoldboi, mkenneth, tburke, virt-maint, yeylon, ykaul | |
Target Milestone: | rc | Keywords: | Triaged | |
Target Release: | --- | |||
Hardware: | Unspecified | |||
OS: | Unspecified | |||
Whiteboard: | ||||
Fixed In Version: | Doc Type: | Bug Fix | ||
Doc Text: | Story Points: | --- | ||
Clone Of: | ||||
: | 711374 (view as bug list) | Environment: | ||
Last Closed: | 2011-06-07 10:20:13 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: | ||||
Bug Depends On: | 654023 | |||
Bug Blocks: | 580948, 711374 |
Description
Haim
2010-11-16 12:29:45 UTC
vdsm22-4.5-62.26.el5_5rhev2_2 kvm-83-164.el5_5.23 kernel-2.6.18-194.17.1.el5 please note that guest machine reported as running, however, it can't be used, this is a very bad user experience, I would have expect guest go to pause non-responding, as currently there is no indication something is wrong. 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. Actually I don't know whether I fully understood the comment #0.Following is my steps. 1.configure nfs server #cat /etc/sysconfig/nfs LOCKD_TCPPORT=32803 LOCKD_UDPPORT=32769 MOUNTD_PORT=892 STATD_PORT=662 2.use RHEL5 host to mount the nfs host A:#mount <nfs-ip>:/home /opt host B:#mount <nfs-ip>:/home /opt 3.start VM in host A and do some I/O operations: eg: /usr/libexec/qemu-kvm -M rhel5.6.0 -m 2G -smp 2 -name win2k3_64 -uuid 12bb419b-8730-cbbd-b0d9-168fa4225b6d -monitor stdio -boot c -drive file=/opt/fedora.img,if=ide,boot=on,format=raw,cache=none,werror=stop -net nic,macaddr=54:52:00:0e:bf:a1,vlan=0 -net tap,script=/etc/qemu-ifup,vlan=0 -serial pty -parallel none -usb -vnc :1 -k en-gb -vga cirrus -balloon virtio 4.start listenning port on host B; 5.block communication between host A to storage server eg :on the nfs server host #iptables -I INPUT -s <host A's ip> -m udp -p udp --dport 111 -j REJECT; #iptables -I INPUT -s <host A's ip> -m tcp -p tcp --dport 111 -j REJECT; #iptables -I INPUT -s <host A's ip> -m udp -p udp --dport 662 -j REJECT; #iptables -I INPUT -s <host A's ip> -m tcp -p tcp --dport 662 -j REJECT; #iptables -I INPUT -s <host A's ip> -m udp -p udp --dport 892 -j REJECT; #iptables -I INPUT -s <host A's ip> -m tcp -p tcp --dport 892 -j REJECT; #iptables -I INPUT -s <host A's ip> -m tcp -p tcp --dport 2049 -j REJECT; #iptables -I INPUT -s <host A's ip> -m udp -p udp --dport 2049 -j REJECT; #iptables -I INPUT -s <host A's ip> -m udp -p udp --dport 32803 -j REJECT; #iptables -I INPUT -s <host A's ip> -m tcp -p tcp --dport 32803 -j REJECT; #iptables -I INPUT -s <host A's ip> -m tcp -p tcp --dport 32769 -j REJECT; #iptables -I INPUT -s <host A's ip> -m udp -p udp --dport 32769 -j REJECT Actual Results: After step 5 ,the qemu-monitor in host A is freezed ,I can NOT input migration command it it 。 Additional info: after flush all the firewall rules on nfs server #iptables -F ,qemu-monitor works ,after execute migration command in qemu-monitor ,guest on host B works fine. bcao---->hateya Hi, Haim Is my steps belows right ? How did you do migrate operation after blocking communication between host A and storage server by using iptables ? Mike |