From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 81809 invoked by alias); 10 Feb 2017 16:52:39 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 81799 invoked by uid 89); 10 Feb 2017 16:52:39 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.2 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_SOFTFAIL autolearn=no version=3.3.2 spammy=H*u:1.2.3, H*UA:1.2.3, HX-PHP-Originating-Script:rcube.php, Hx-languages-length:924 X-HELO: simark.ca Received: from simark.ca (HELO simark.ca) (158.69.221.121) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Fri, 10 Feb 2017 16:52:37 +0000 Received: by simark.ca (Postfix, from userid 33) id 0E92D1E9FE; Fri, 10 Feb 2017 11:52:36 -0500 (EST) To: Pedro Alves Subject: Re: [PATCH] Don't send queries to the MI interpreter X-PHP-Originating-Script: 33:rcube.php MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Fri, 10 Feb 2017 16:52:00 -0000 From: Simon Marchi Cc: Simon Marchi , gdb-patches@sourceware.org In-Reply-To: <89904751-7015-b272-98c1-33e786f7c356@redhat.com> References: <20170210163650.10334-1-simon.marchi@ericsson.com> <89904751-7015-b272-98c1-33e786f7c356@redhat.com> Message-ID: X-Sender: simon.marchi@polymtl.ca User-Agent: Roundcube Webmail/1.2.3 X-IsSubscribed: yes X-SW-Source: 2017-02/txt/msg00264.txt.bz2 On 2017-02-10 11:48, Pedro Alves wrote: > On 02/10/2017 04:36 PM, Simon Marchi wrote: >> We have a little problem in Eclipse CDT related to queries being sent >> on >> the MI channel. GDB sends queries on the MI stream and waits for an >> answer (y or n), but since CDT will never answer, it causes a >> deadlock. >> >> Note that this is only a problem when using MI as a side-channel >> (new-ui) on a dedicated tty. It doesn't happen if GDB's input/output >> streams are pipes, for example. In that case, the queries are >> auto-answered as they should. > > I think we could have a testsuite test for this, as the > 'new-ui'-related > testcases create a pty for the secondary MI channel > ("separate-mi-tty")? Right, I didn't think of making a test, I'll work on it. I'll try to find a query that's easier to trigger than the modify-memory-while-replaying one though.