On 25/08/14 11:18, Russell King - ARM Linux wrote: > On Wed, Aug 13, 2014 at 01:39:27PM +0000, Mattis Lorentzon wrote: >> 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? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
