[etherlab-users] System Crash on Frequency > 1KHz : "PCI-DMA: Out of IOMMU space for 160 bytes"
p.moustakas at axis-simulations.at
Mon May 21 18:39:20 CEST 2012
We're using a 64bit RedHawk System with Kernel 2.6.31 (4GB RAM) and 2
8169 network interface cards for the ethercatmaster. Up to an frequency
we doesn't have any problems, but when we increase the frequency to
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,
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