2009-06-09 11:01:15 UDP err with IP fragments

Hans Waldmann (UNITED STATES)

Message: 75404

Hi,

In the 2008r1 release and previous releases, I am seeing that some fragmented IP packets are not getting received properly. When I get those, I see that I am getting UDP InErrors in the /proc/net/snmp log. I am attaching the log and the ethereal capture of the fragmented IP packets. Has this problem been seen before? Any chance there is a fix in a later release?

Thanks,

Hans

UDP_InErr.txt

UDP_InErr_IPfragments.cap

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2009-06-09 11:19:54 Re: UDP err with IP fragments

Robin Getz (UNITED STATES)

Message: 75407

Hans:

There was a problem where we were clobbering the CC bit in the network CRC calculation.

Committed to trunk and 2008R1 branch.

/arch/blackfin/include/asm/checksum.h