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From: Nathan Zimmer <nzimmer@sgi.com>
To: Holger Hans Peter Freyther <holger@freyther.de>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: /proc/timer_list and weird behavior with dropbear
Date: Fri, 19 Jul 2013 10:45:15 -0500	[thread overview]
Message-ID: <51E95F0B.6080703@sgi.com> (raw)
In-Reply-To: <20130719152800.GA20792@xiaoyu.lan>

On 07/19/2013 10:28 AM, Holger Hans Peter Freyther wrote:
> Dear Nathan,
>
> I am currently upgrading a kernel for a TI Davinci DM644x based design
> from Linux 3.2 to Linux 3.10.1. I have a funny re-producible issue that
> goes away by reverting b3956a896ea57f25cacd74708b8fab611543a81d.
>
> The dropbear sshd will open several files after accepting a connection to
> generate some entropy. The "/proc/timer_list" file is part of that[1].
> It will open that file and will try to read until the end of the file, but
> most of the time this end never comes. According to strace the read on the
> fd will always return 2048. I have attached the testcase I am using to
> re-produce the issue.
>
> Can this be re-produced by anyone else?
>
> holger
>
>
>
> [1] https://secure.ucc.asn.au/hg/dropbear/file/028fa77f952f/random.c#l204
>
I hadn't noticed anything.
Let me try your program and see what I may have missed.

  reply	other threads:[~2013-07-19 15:45 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-19 15:28 Holger Hans Peter Freyther
2013-07-19 15:45 ` Nathan Zimmer [this message]
2013-07-19 17:03   ` Holger Hans Peter Freyther
2013-07-19 19:05     ` Nathan Zimmer
2013-07-19 20:33     ` Nathan Zimmer
2013-07-19 20:37       ` Nathan Zimmer
2013-07-20  5:43         ` Holger Hans Peter Freyther
2013-07-22 21:18           ` [PATCH] timer_list: Correct the show function for timer_list by using iter->now Nathan Zimmer
2013-07-23  7:18             ` Holger Hans Peter Freyther
2013-07-23 22:50               ` Nathan Zimmer
2013-07-24 14:31               ` [PATCH] timer_list: Correct the iterator for timer_list Nathan Zimmer

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