Bug 1285595
Summary: | vubr coredumpd during repeatedly load/unload virtio-net driver inside guest. | ||
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Product: | Red Hat Enterprise Linux 7 | Reporter: | Qian Guo <qiguo> |
Component: | qemu-kvm-rhev | Assignee: | Victor Kaplansky <vkaplans> |
Status: | CLOSED ERRATA | QA Contact: | Pei Zhang <pezhang> |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 7.2 | CC: | ailan, juzhang, knoel, michen, mrezanin, victork, virt-maint |
Target Milestone: | rc | ||
Target Release: | --- | ||
Hardware: | Unspecified | ||
OS: | Unspecified | ||
Whiteboard: | |||
Fixed In Version: | qemu-kvm-rhev-2.6.0-1.el7 | Doc Type: | Bug Fix |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2016-11-07 21:38:48 UTC | Type: | Bug |
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: | |||
Bug Blocks: | 1288337 |
Comment 5
Mike McCune
2016-03-28 23:44:20 UTC
Verification: Versions: Host: 3.10.0-503.el7.x86_64 qemu-kvm-rhev-2.6.0-18.el7.x86_64 Guest: 3.10.0-503.el7.x86_64 Steps: 1. Launch slirp as background # /usr/libexec/qemu-kvm \ -net none \ -net socket,vlan=0,udp=localhost:4444,localaddr=localhost:5555 \ -net user,vlan=0 2. Start vhotuser as server # ./vhost-user-bridge 3. Boot guest with vhostuser as client # /usr/libexec/qemu-kvm -enable-kvm -m 4096 -smp 4 \ -object memory-backend-file,id=mem0,size=4096M,mem-path=/dev/hugepages,share=on \ -numa node,nodeid=0,memdev=mem0 \ -mem-prealloc \ -vga std -vnc :10 \ /home/pezhang/rhel7.3.qcow2 \ -chardev socket,id=char0,path=/tmp/vubr.sock \ -device virtio-net-pci,netdev=mynet1,mac=54:52:00:1a:2c:01 \ -netdev type=vhost-user,id=mynet1,chardev=char0,vhostforce \ -monitor stdio \ 4. Repeat unload/load virtio_net driver in guest, vhost-user-bridge works well after 16 minutes. # while true ; do modprobe -r virtio_net ; sleep 0.5 ; modprobe virtio_net; pkill dhclient ; sleep 0.5 ; dhclient eth0; done So this bug has been fixed well. Also re-verify this bug with vhost-user-bridge of qemu-kvm-rhev-2.6.0-23.el7.src.rpm. Still works well. So set this bug to 'VERIFIED' as Comment 7 and Comment 8. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2016-2673.html |