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Bug
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Resolution: Unresolved
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Undefined
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None
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rhel-9.8
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None
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None
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None
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rhel-virt-core-libvirt-2
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None
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False
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False
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None
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None
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None
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None
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Unspecified
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Unspecified
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Unspecified
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None
What were you trying to do that didn't work?
Start vm failed with e1000 model ethernet interface when launched by a non-root user
Please provide the package NVR for which the bug is seen:
[root@dell-per740-18 ~]# rpm -q libvirt qemu-kvm libvirt-11.10.0-2.el9.x86_64 qemu-kvm-10.1.0-10.el9.x86_64
How reproducible is this bug?:
100%
Steps to reproduce
1.Create bridge and tap
[root@dell-per740-18 ~]# tmux -c "ip link add name br_1VZ type bridge; ip link set eno1 up; ip link set eno1 master br_1VZ; ip link set br_1VZ up; pkill dhclient; sleep 6; dhclient br_1VZ; ifconfig eno1 0" [root@dell-per740-18 ~]# ip tuntap add mode tap user test group test name tap_1VZ multi_queue;ip link set tap_1VZ up;ip link set tap_1VZ master br_1VZ [root@dell-per740-18 ~]# [root@dell-per740-18 ~]# [root@dell-per740-18 ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master br_1VZ state UP group default qlen 1000 link/ether 20:04:0f:f3:d5:50 brd ff:ff:ff:ff:ff:ff altname enp24s0f0 ...... ....... 31: br_1VZ: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 20:04:0f:f3:d5:50 brd ff:ff:ff:ff:ff:ff inet 10.73.178.39/23 brd 10.73.179.255 scope global dynamic br_1VZ valid_lft 86204sec preferred_lft 86204sec inet6 2620:52:0:49b2:2204:fff:fef3:d550/64 scope global dynamic mngtmpaddr proto kernel_ra valid_lft 2591997sec preferred_lft 604797sec inet6 fe80::2204:fff:fef3:d550/64 scope link proto kernel_ll valid_lft forever preferred_lft forever 32: tap_1VZ: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq master br_1VZ state DOWN group default qlen 1000 link/ether 26:46:5e:73:86:20 brd ff:ff:ff:ff:ff:ff
2.Define vm by non root user
[root@dell-per740-18 ~]# /usr/bin/virsh -c 'qemu+ssh://test@localhost/session' define /var/tmp/xml_utils_temp_pk32cnub.xml Domain 'unpr-vm' defined from /var/tmp/xml_utils_temp_pk32cnub.xml [root@dell-per740-18 ~]# /usr/bin/virsh -c 'qemu+ssh://test@localhost/session' dumpxml unpr-vm --xpath //interface <interface type="ethernet"> <mac address="52:54:00:53:92:12"/> <target dev="tap_1VZ" managed="no"/> <model type="e1000"/> <rom enabled="no"/> <address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/> </interface>
3.Start vm
[root@dell-per740-18 ~]# /usr/bin/virsh -c 'qemu+ssh://test@localhost/session' start unpr-vm
Expected results
Start vm successfully
Actual results
[root@dell-per740-18 ~]# /usr/bin/virsh -c 'qemu+ssh://test@localhost/session' start unpr-vm error: Failed to start domain 'unpr-vm' error: Unable to create tap device tap_1VZ: Invalid argument
Note: PASS if virtio net
[root@dell-per740-18 ~]# /usr/bin/virsh -c 'qemu+ssh://test@localhost/session' dumpxml unpr-vm --xpath //interface <interface type="ethernet"> <mac address="52:54:00:53:92:12"/> <target dev="tap_1VZ" managed="no"/> <model type="virtio"/> <driver name="vhost" queues="4"/> <rom enabled="no"/> <address type="pci" domain="0x0000" bus="0x01" slot="0x00" function="0x0"/> </interface> [root@dell-per740-18 ~]# /usr/bin/virsh -c 'qemu+ssh://test@localhost/session' start unpr-vm Domain 'unpr-vm' started
