From: kuznet@ms2.inr.ac.ru
Message-Id: <200102272035.XAA21341@ms2.inr.ac.ru>
Subject: Re: rsync over ssh on 2.4.2 to 2.2.18
To: rmk@arm.linux.ORG.UK (Russell King)
Date: Tue, 27 Feb 2001 23:35:12 +0300 (MSK)
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <200102271002.f1RA2B408058@brick.arm.linux.org.uk> from "Russell King" at Feb 27, 1 01:15:01 pm
MIME-Version: 1.0
Sender: linux-kernel-owner@vger.kernel.org

Hello!

> netstat on isdn-gw shows the following:
> 
> 	Proto Recv-Q Send-Q Local Address           Foreign Address         State
> 	tcp    72868      0 isdn-gw.piltdown.a:1023 pilt-gw.piltdown.at:ssh ESTABLISHED
plus
> select(4, [3], [3], NULL, NULL)         = 2 (in [3], out [3])


> Maybe there is a race condition or missing wakeup in the TCP code?

Moreover, even not _one_ wakeup is missing. At least two, because
wakeups in read and write are separate and you have stuck in both directions.
8)8)

Well, if it was one I would start to dig ground inside tcp instantly.
But as soon as two of them are missing, I have to suspect wake_up itself.
At least, we had such bugs there until 2.4.0.

Alexey
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/