Bug 1707646
| Summary: | Boot guest with e1000e, value of "/sys/class/net/$nic/operstate" is wrongly showed as "up" after "(qemu) set_link net0 off" | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Pei Zhang <pezhang> |
| Component: | qemu-kvm-rhev | Assignee: | jason wang <jasowang> |
| Status: | CLOSED WONTFIX | QA Contact: | Pei Zhang <pezhang> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 7.7 | CC: | aadam, chayang, jinzhao, juzhang, rkhan, virt-maint |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-07-02 05:50:12 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Description of problem: Boot guest with e1000e. After executing "(qemu) set_link net0 off", the value of "/sys/class/net/$nic/operstate" in guest is 'up'. but the expected value is 'down'. Version-Release number of selected component (if applicable): 3.10.0-1043.el7.x86_64 qemu-kvm-rhev-2.12.0-27.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. Boot guest with e1000e -netdev tap,id=hostnet0 \ -device e1000e,netdev=hostnet0,id=net0,mac=fa:5e:07:b4:08:01,bus=root.2 \ 2. In qemu terminal, set this NIC link off (qemu) set_link net0 off 3. In guest, check status, it's wrongly showed "up". # ifconfig ens2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.73.74.39 netmask 255.255.252.0 broadcast 10.73.75.255 inet6 fe80::f85e:7ff:feb4:801 prefixlen 64 scopeid 0x20<link> ether fa:5e:07:b4:08:01 txqueuelen 1000 (Ethernet) RX packets 81602 bytes 6158528 (5.8 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 268 bytes 758903 (741.1 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 device interrupt 23 memory 0xfe640000-fe660000 # cat /sys/class/net/ens2/operstate up Actual results: The value of /sys/class/net/$nic/operstate is wrongly showed "up" after set link down. Expected results: The value of /sys/class/net/$nic/operstate should be showed "down" after set link down. Additional info: 1. virtio-net-pci works well. So it's only e1000e issue. Reference: 1. Full cmd line: /usr/libexec/qemu-kvm -name rhel7.7 \ -M q35,kernel-irqchip=split \ -cpu host -m 8G \ -smp 4,sockets=1,cores=4,threads=1 \ -device pcie-root-port,id=root.1,slot=1 \ -device pcie-root-port,id=root.2,slot=2 \ -drive file=/home/rhel7.7.qcow2,format=qcow2,if=none,id=drive-virtio-blk0,werror=stop,rerror=stop \ -device virtio-blk-pci,drive=drive-virtio-blk0,id=virtio-blk0,bus=root.1 \ -vnc :2 \ -monitor stdio \ -netdev tap,id=hostnet0 \ -device e1000e,netdev=hostnet0,id=net0,mac=fa:5e:07:b4:08:01,bus=root.2 \