From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 25 Mar 2015 10:20:01 +0100 From: Gilles Chanteperdrix Message-ID: <20150325092001.GI15125@hermes.click-hack.org> References: <55127004.3010708@mitrol.it> <20150325083622.GF15125@hermes.click-hack.org> <55127908.5050202@mitrol.it> <20150325090354.GG15125@hermes.click-hack.org> <55127BB1.7040804@mitrol.it> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <55127BB1.7040804@mitrol.it> Subject: Re: [Xenomai] fault in ppd_lookup_inner List-Id: Discussions about the Xenomai project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Minazzi Cc: xenomai@xenomai.org On Wed, Mar 25, 2015 at 10:11:13AM +0100, Paolo Minazzi wrote: > Il 25/03/2015 10:03, Gilles Chanteperdrix ha scritto: > >On Wed, Mar 25, 2015 at 09:59:52AM +0100, Paolo Minazzi wrote: > >>Il 25/03/2015 09:36, Gilles Chanteperdrix ha scritto: > >>>On Wed, Mar 25, 2015 at 09:21:24AM +0100, Paolo Minazzi wrote: > >>>>Hello all, > >>>>I'm stressing an arm IMX6 boardwith > >>>>- kernel 3.0.35 > >>>>- I-pipe 1.18-13 > >>>>- xenomai 2.6.3 > >>>Do you observe the same behaviour with Xenomai 2.6.4 ? > >>> > >>I have added all fix of 2.6.4 to my 2.6.3 (seeing changelog) but I have the > >>same behaviour. > >>It is not easy see the problem. > >Why not simply testing 2.6.4, with everything, not only what appear > >as fixes? > > > >Also, do you have the same problem if you dlopen something more > >innocuous than libvncserver ? > > > I understand ... I port the fix to avoid compatililityproblem. > I made only ksrc changes, so my user space is 100% compatible. There is no compatibility problem between versions of a stable branch. 2.6.4 is compatible with 2.6.0, 2.6.1, 2.6.2, 2.6.3. It is even ABI compatible, you do not even have to recompile your applications. > I understand that you do not agree with me because you prefer a clean 2.6.4. > I can try an other library. Do you mean a smaller library? Any library that everybody has on his system, to allow reproducing the issue. You could also try replacing the dlopen with a nanosleep. > This is a strange test. I'm trying it because in the past I have had some > memory corruption that make system instable. > I would like to be sure about it. I do not doubt that you observed an issue. I would simply like to be sure that it has not already been fixed in Xenomai or the I-pipe patch. -- Gilles.