From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 1413 invoked by alias); 23 Aug 2010 18:55:25 -0000 Mailing-List: contact archer-help@sourceware.org; run by ezmlm Sender: Precedence: bulk List-Post: List-Help: List-Subscribe: List-Id: Received: (qmail 1398 invoked by uid 22791); 23 Aug 2010 18:55:24 -0000 X-SWARE-Spam-Status: No, hits=-6.6 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Date: Mon, 23 Aug 2010 18:55:00 -0000 From: Oleg Nesterov To: archer@sourceware.org, utrace-devel@redhat.com Subject: Re: gdbstub initial code, v5 Message-ID: <20100823185223.GA31912@redhat.com> References: <20100820173749.GA24358@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100820173749.GA24358@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-SW-Source: 2010-q3/txt/msg00126.txt.bz2 Just a small report to explain what I am doing... On 08/20, Oleg Nesterov wrote: > > - I forgot to implement the attach to the thread group > with the dead leader. Next time. Almost done, but we should avoid the races with exec somehow. But this is minor. I tried to test this code as much as I can. Again, I do not use gdb at all, I am using the scripts which try to really stress ugdb. Found 2 bugs in ugdb.ko, the second one is not nice but at least I have the temporary fix. However. I spent all Monday trying to resolve the new bug, and so far I do not understand what happens. Extremely hard to reproduce, and the kernel just hangs silently, without any message. So far I suspect the proble in utrace.c, but this time I am not sure. Will continue tomorrow... Oleg.