Oops: 17 SMP ARM (v3.16-rc2)

On 25/08/14 11:18, Russell King - ARM Linux wrote:

On Wed, Aug 13, 2014 at 01:39:27PM +0000, Mattis Lorentzon wrote:

quoted

All our tests seem to behave the same way on the Sabrelite as on our own board.
A working theory is that the switch (3Com Switch 4400) triggers the degeneration
of the network stack from which Linux does not seem to recover, even if we later
bypass the switch and directly connect the board to the server machine.

Please can you try something - what happens if you completely disable
pause frame support (flow control) on all machines on the switch?

Russell, while trying to duplicate this I have flow-control disabled 
on the switch which leads to it being auto-negotiated off on all devices.
Do you think it could be worth turning it on and trying again?