DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 161583992CA4
Date: Fri, 6 Aug 2021 01:43:31 +0900
To: cygwin@cygwin.com
Subject: Re: SSHD causes 100% CPU load
Message-Id: <20210806014331.899fb21f181e664663c328ae@nifty.ne.jp>
In-Reply-To: <YQv+rEqA8WiWdkVA@calimero.vinschen.de>
References: <145999495.20210426124252@cfos.de>
 <1342428656.20210428072302@yandex.ru>
 <20210805191242.b29a3904cbc4d082bdc3dd37@nifty.ne.jp>
 <YQv+rEqA8WiWdkVA@calimero.vinschen.de>
Mime-Version: 1.0
Precedence: list
From: Takashi Yano via Cygwin <cygwin@cygwin.com>
Reply-To: Takashi Yano <takashi.yano@nifty.ne.jp>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: cygwin-bounces+archive-cygwin=delorie.com@cygwin.com
Sender: "Cygwin" <cygwin-bounces+archive-cygwin=delorie.com@cygwin.com>

Hi Corinna,

On Thu, 5 Aug 2021 17:07:24 +0200
Corinna Vinschen wrote:
> Could you perhaps bisect the issue on your machine?

In my environment, this does not happen with 8.4p1-1 and 8.4p1-2.
However it happens with 8.5p1-1.

> The fact that using Windows ssh is an issue makes me wonder if this is
> some kind of pty problem.

With command 'ssh user@localhost ls', pty does not allocated.
It seems that this issue does not happen if -t option (allocate
tty) is specified. So I think this is not a pty problem.

In order to look into this problem, I tried to build openssh-8.5p1-1
from source, however it cause the error in configure stage:

...
checking for pkg-config... (cached) /usr/bin/pkg-config
checking if /usr/bin/pkg-config knows about libfido2... no
checking for fido_init in -lfido2... no
configure: error: no usable libfido2 found
*** ERROR: configure failed

despite libfido2-devel had been installed.

$ cygcheck -c libfido2-devel
Cygwin Package Information
Package              Version        Status
libfido2-devel       1.5.0-1        OK

How can I solve this error?

-- 
Takashi Yano <takashi.yano@nifty.ne.jp>

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple