X-Recipient: archive-cygwin@delorie.com
X-SWARE-Spam-Status: No, hits=2.3 required=5.0	tests=AWL,BAYES_50,RCVD_IN_DNSWL_NONE,RCVD_IN_JMF_BL,SPF_HELO_PASS
X-Spam-Check-By: sourceware.org
Date: Tue, 04 Oct 2011 08:56:56 +0200
Message-ID: <20111004085656.Horde.ygwybElCcOxOiq446RkmP4A@webmail.df.eu>
From: Markus Hoenicka <markus.hoenicka@mhoenicka.de>
To: cygwin@cygwin.com
Subject: Re: error while running shell in emacs
References: <20110930162705.Horde.SEW3ZruWis5OhdG5y5EHB8A@webmail.df.eu> <4E8612C8.2020701@cornell.edu> <4E88D905.8010206@cornell.edu> <4E88DE0C.1030108@cornell.edu> <4E8A3E33.8000806@cornell.edu>
In-Reply-To: <4E8A3E33.8000806@cornell.edu>
User-Agent: Internet Messaging Program (IMP) H4 (5.0.10)
Content-Type: text/plain; charset=ISO-8859-1; format=flowed; DelSp=Yes
MIME-Version: 1.0
Content-Disposition: inline
X-Df-Sender: bWFya3VzLmhvZW5pY2thQG1ob2VuaWNrYS5kZQ==
X-IsSubscribed: yes
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe@cygwin.com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin@cygwin.com>
List-Help: <mailto:cygwin-help@cygwin.com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
Delivered-To: mailing list cygwin@cygwin.com


Ken Brown <kbrown@cornell.edu> was heard to say:

> On 10/2/2011 5:56 PM, Ken Brown wrote:
>> On 10/2/2011 5:35 PM, Ken Brown wrote:
>>> On 9/30/2011 3:04 PM, Ken Brown wrote:
>>>> On 9/30/2011 10:27 AM, Markus Hoenicka wrote:
>>>>> Hi,
>>>>>
>>>>> after moving to a new position I have set up a fresh Cygwin
>>>>> installation:
>>>>>
>>>>> CYGWIN_NT-5.1 sbhc123 1.7.9(0.237/5/3) 2011-03-29 10:10 i686 Cygwin
>>>>>
>>>>> I use some Emacs extensions which execute external programs using
>>>>> (call-process). This used to work on my previous setup, but it fails on
>>>>> my current box. The following command run in Emacs reproduces what
>>>>> seems
>>>>> to be the problem:
>>>>>
>>>>> (call-process "bash" nil '(t t) nil "-ic" "ls -al")
>>>>> bash: Kann die Prozessgruppe des Terminals nicht setzen (-1).:
>>>>> Inappropriate ioctl for device
>>>>> bash: Keine Job Steuerung in dieser Shell.
>>>>>
>>>>> As you can see, my Cygwin also started speaking German, but I didn't
>>>>> get
>>>>> round to fix that yet. The messages loosely translate to: "cannot set
>>>>> terminal process group" and "no job control in this shell".
>>>>>
>>>>> Is this an incorrect setup of either Cygwin or Emacs, or is this indeed
>>>>> a problem that crept into Cygwin recently?
>>>>
>>>> I can reproduce this problem. It reminds me of a problem that I
>>>> reported in
>>>>
>>>> http://cygwin.com/ml/cygwin/2011-06/msg00174.html ,
>>>>
>>>> but that started with the 2011-05-05 snapshot and was fixed in the
>>>> 2011-06-16 snapshot. The problem you're reporting exists in Cygwin 1.7.9
>>>> and persists in the latest snapshot, but with different symptoms:
>>>> Instead of printing error messages, emacs hangs and has to be killed.
>>>>
>>>> If one of the Cygwin developers wants to look at this, here are the
>>>> steps to reproduce it:
>>>>
>>>> 1. Start emacs.
>>>> 2. Type <Ctrl-x>b<Enter>
>>>>
>>>> [This should put you in the *scratch* buffer.]
>>>>
>>>> 3. Type (or copy and paste) the following text into the *scratch*
>>>> buffer:
>>>>
>>>> (call-process "bash" nil '(t t) nil "-ic" "ls -al")
>>>>
>>>> 4. With the cursor positioned immediately after the closing parenthesis,
>>>> type <Ctrl-j>
>>>
>>> FWIW, the change in behavior (i.e., emacs hanging instead of giving an
>>> error message) starts with the 2006-06-13 snapshot. And it may be
>>
>> Ignore the statement that it starts with the 2006-06-13 snapshot. I made
>> a mistake and didn't test enough snapshots. I'll have to continue
>> bisecting. All I know at the moment is that there's an error message in
>> the 2011-05-10 snapshot and that the "hang" occurs in the 2011-06-13
>> snapshot. There are still a lot of snapshots in between that need
>> testing. Sorry for the noise.
>
> I've finished testing snapshots.  Up through the 2011-05-20  
> snapshot, I get the error messages reported by the OP:
>
> bash: cannot set terminal process group (-1): Inappropriate ioctl for device
> bash: no job control in this shell
>
> Starting with the 2011-05-28 snapshot, I instead get the message  
> "Aborted".  Starting with the 2011-06-01 snapshot, I get the  
> "hanging" behavior that I reported previously (with a stopped bash  
> process).
>
> There was a similar pattern in the problem I reported in
>
>   http://cygwin.com/ml/cygwin/2011-06/msg00174.html
>
> Ken
>

Do you have any idea which Cygwin DLL version introduced the problem?  
I have never used snapshots, but as I can't access my previous box  
anymore I can't really tell which version it ran.

regards,
Markus


-- 
Markus Hoenicka
http://www.mhoenicka.de
AQ score 38



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