The warning message:
"failed to disable LRO!"
is coming from the function dev_disable_lro():
/**
* dev_disable_lro - disable Large Receive Offload on a device
* @dev: device
*
* Disable Large Receive Offload (LRO) on a net device. Must be
* called under RTNL. This is needed if received packets may be
* forwarded to another interface.
*/
dev_disable_lro()
...
if (unlikely(dev->features & NETIF_F_LRO))
netdev_WARN(dev, "failed to disable LRO!\n");
...
Likely relevant callers here:
bond_enslave()
if (!(bond_dev->features & NETIF_F_LRO))
dev_disable_lro(slave_dev);
br_add_if()
dev_disable_lro(dev);
...
Looking like the second, from the trace.
I'd say if you can repro then turn on debug and also
dynamic debug on the files br_if.c and dev.c.
Possibly another issue with the device name? Is bond1.2001
a vlan interface?
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https://bugs.launchpad.net/bugs/1771480
Title:
WARNING: CPU: 28 PID: 34085 at /build/linux-
90Gc2C/linux-3.13.0/net/core/dev.c:1433 dev_disable_lro+0x87/0x90()
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