From: Alexei Starovoitov
Date: Sat, 28 Jan 2017 17:17:05 -0800
> under memory pressure 'ethtool -S' command may warn:
> [ 2374.385195] ethtool: page allocation failure: order:4, mode:0x242c0c0
...
> ~1160 mlx5 counters ~= order 4 allocation which is unlikely to succeed
> under memory pressure.
under memory pressure 'ethtool -S' command may warn:
[ 2374.385195] ethtool: page allocation failure: order:4, mode:0x242c0c0
[ 2374.405573] CPU: 12 PID: 40211 Comm: ethtool Not tainted
[ 2374.423071] Call Trace:
[ 2374.423076] [] dump_stack+0x4d/0x64
[ 2374.423080] [] warn_alloc_failed+0xeb/0x15
