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From: Randall Stewart <rrs@FreeBSD.org>
Date: Mon, 7 Jun 2010 18:29:10 +0000 (UTC)
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Subject: cvs commit: src/sys/netinet sctp_indata.c
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rrs         2010-06-07 18:29:10 UTC

  FreeBSD src repository

  Modified files:
    sys/netinet          sctp_indata.c 
  Log:
  SVN rev 208897 on 2010-06-07 18:29:10Z by rrs
  
  This fixes a BUG in the handling of the cum-ack calculation.
  We were only paying attention to the nr-mapping-array. Which
  seems to make sense on the surface, by definition things
  up to the cum-ack should be deliverable thus in the nr-mapping-array.
  However (there is always a gotcha) thats not true when it
  comes to large messages. The stack may hold the message
  while re-assembling it not not deliver it based on several
  thresholds. If that happens (which it would for smaller
  large messages) then the cum-ack is figured wrong. We
  now properly use both arrays in the cum-ack calculation.
  
  MFC after:      1 week.
  
  Revision  Changes    Path
  1.83      +12 -7     src/sys/netinet/sctp_indata.c