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[qemu,0/1] MAC address falls to permanent

Message ID 20230131182337.15645-1-vlaomao@gmail.com (mailing list archive)
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Series MAC address falls to permanent | expand

Message

Влад Мао Jan. 31, 2023, 6:23 p.m. UTC 
A bug was found with the vmxnet3 driver, after changing the MAC address
and rebooting, it falls into the category of a permanent address until
the VM is turned off. Here is log output:

-bash-4.4# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
group default qlen 1
    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
2: ens3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group
default qlen 1000
    link/ether 52:54:00:12:34:56 brd ff:ff:ff:ff:ff:ff

-bash-4.4# ip link set dev ens3 address 33:33:33:33:33:33
-bash-4.4# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
group default qlen 1
    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
2: ens3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group
default qlen 1000
    link/ether 33:33:33:33:33:33 brd ff:ff:ff:ff:ff:ff
-bash-4.4# ethtool -P ens3
Permanent address: 52:54:00:12:34:56
-bash-4.4# reboot

//rebooting


-bash-4.4# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
group default qlen 1
    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
2: ens3: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group
default qlen 1000
    link/ether 33:33:33:33:33:33 brd ff:ff:ff:ff:ff:ff
-bash-4.4# ethtool -P ens3
Permanent address: 33:33:33:33:33:33
-bash-4.4#

Vlao Mao (1):
  vmxnet3: add mac address restore upon reset

 hw/net/vmxnet3.c | 2 ++
 1 file changed, 2 insertions(+)