From: Neil Horman <nhorman@tuxdriver.com>
To: linux-sctp@vger.kernel.org
Subject: Re: receiver window questions
Date: Thu, 29 May 2008 23:51:37 +0000 [thread overview]
Message-ID: <20080529235137.GA22989@localhost.localdomain> (raw)
In-Reply-To: <483EC663.1070805@hp.com>
On Thu, May 29, 2008 at 11:50:56AM -0400, Vlad Yasevich wrote:
> Neil Horman wrote:
> >On Thu, May 29, 2008 at 11:06:11AM -0400, Vlad Yasevich wrote:
>
> I think this is hitting a condition where the receiver buffer is exhausted
> prior
> to rwnd. We generally mark the TSN as received prior to attempting an
> internal allocation to carry the data. Thus, if this allocation fails,
> we'll continue
> reporting the tsn as received and move the cum-tsn if appropriate.
>
> We've been trying to figure out what the correct way to solve this
> condition is
> and so far haven't come up with a workable solution.
>
You're right it does sound like that. You know, I haven't visited that code
since we rewrote the receive buffer management code to expand according to
available memory with the sk_mem_schedule api. Do you think this could be as
simple as removing this drop point?
Neil
next prev parent reply other threads:[~2008-05-29 23:51 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-29 15:06 receiver window questions Vlad Yasevich
2008-05-29 15:18 ` Michael Tuexen
2008-05-29 15:25 ` Neil Horman
2008-05-29 15:34 ` Michael Tuexen
2008-05-29 15:50 ` Vlad Yasevich
2008-05-29 16:12 ` Michael Tuexen
2008-05-29 23:51 ` Neil Horman [this message]
2008-05-30 7:50 ` Michael Tuexen
2008-05-30 13:02 ` Vlad Yasevich
2008-05-30 15:08 ` Michael Tuexen
2008-05-30 17:10 ` Vlad Yasevich
2008-05-30 20:23 ` Neil Horman
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