On Tue, Feb 26, 2013 at 05:37:58PM -0500, David Miller wrote:

From: "Lee A. Roberts" <redacted>
Date: Tue, 26 Feb 2013 07:36:12 -0700

quoted

This series of patches resolves several SCTP association hangs observed during
SCTP stress testing.  Observable symptoms include communications hangs with
data being held in the association reassembly and/or lobby (ordering) queues.
Close examination of reassembly/ordering queues may show either duplicated
or missing packets.

Lee A. Roberts (4):
  sctp: fix association hangs due to off-by-one errors in
    sctp_tsnmap_grow()
  sctp: fix association hangs due to reneging packets below the
    cumulative TSN ACK point
  sctp: fix association hangs due to errors when reneging events from
    the ordering queue
  sctp: fix association hangs due to partial delivery errors

Vlad, Sridhar, and Neil, please review.

IIRC, Vlad already/still has some outstanding comments & questions regarding
this series.
Neil