netdev - Re: [PATCH v2 3/4] sctp: fix association hangs due to errors when reneging events from the ordering queue

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Message-ID: <20130228143405.GC23518@shamino.rdu.redhat.com>
Date:	Thu, 28 Feb 2013 09:34:05 -0500
From:	Neil Horman <nhorman@...driver.com>
To:	"Lee A. Roberts" <lee.roberts@...com>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH v2 3/4] sctp: fix association hangs due to errors when
 reneging events from the ordering queue

On Wed, Feb 27, 2013 at 11:54:32AM -0700, Lee A. Roberts wrote:
> From: "Lee A. Roberts" <lee.roberts@...com>
> 
> Resolve 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 queue shows
> missing packets.
> 
> In sctp_ulpq_renege_list(), events being reneged from the
> ordering queue may correspond to multiple TSNs.  Identify
> all affected packets; sum freed space and renege from the
> tsnmap.
> 
> Signed-off-by: Lee A. Roberts <lee.roberts@...com>
Acked-by: Neil Horman <nhorman@...driver.com>
> 
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