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hi here is a patch for the quicc2 and for the fcc eth drivers (powerpc architecture). Under heavy load (tx path) the ip stack didn't recover from "out of mbufs". To verify this, just do a udpblast -p 4444 10.14.0.2 9999 (where port 4444 is not open). *_eth_can_send() in principle checks if there is a free hardware buffer. But it checked only if the buffer was sent by the hardware. But not if the buffer was also freed up by the upper layer (with txdone). BTW: this patch is also recommended for the FCC: http://sources.redhat.com/ml/ecos-patches/2003-04/txt00002.txt (discard packets with errors (e.g. CRC )) regards, Christoph --
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