Hi,
We're using a 64bit RedHawk System with Kernel 2.6.31 (4GB RAM) and 2
Realtek
8169 network interface cards for the ethercatmaster. Up to an frequency
of 1KHz
we doesn't have any problems, but when we increase the frequency to
2KHz, our
system crashes with following log-message:
ec_r8169 0000:82:04.0: PCI-DMA: Out of IOMMU space for 160 bytes
Does anyone have an idea what the reason could be?
thanks in advance, best regards,
Philipp
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