Hi, after stumbling over a potential deadlock situation in the altera driver (see http://marc.info/?l=linux-netdev&m=148054615230447&w=2), I checked all other ethernet drivers for the same issue and actually found it in 2 more, namely stmmac, and sxgbe. Please see the commit messages for a description of the problem. These 2 patches fix the concerning drivers.
Regards, Lino