[Xenomai-core] Some changes in Analogy core

2010-06-24 Thread Alexis Berlemont
Hi, I just pushed into my git repository (branch analogy) some significant changes in the asynchronous buffer management. These modifications intend to fix a major issue in the analogy architecture: only the default input and output subdevices were reachable via read / write syscalls. These ch

Re: [Xenomai-core] Analogy: cancel ongoing commands when a device is closed

2010-06-24 Thread Alexis Berlemont
Hi, Alexis Berlemont wrote: > Hi, > > Daniele Nicolodi wrote: > > Alexis Berlemont wrote: > > > Daniele Nicolodi wrote: > > >> After fixing analogy to permit continuous acquisition, I discovered that > > >> ongoing commands are not canceled when a device is closed (I obtain a > > >> DMA buffer ow

Re: [Xenomai-core] analogy - experimental branch

2010-06-24 Thread Alexis Berlemont
Hi, Alexis Berlemont wrote: > Hi Stefan, > > Stefan Schaal wrote: > > Hi Alexis, > > > > I was just wondering whether the new "experimental" branch in your git > > repository is something that can be tried already. > > > > No. Not yet. This branch is aimed at temporarily holding the > corre

Re: [Xenomai-core] Fwd: problem in pthread_mutex_lock/unlock

2010-06-24 Thread Gilles Chanteperdrix
Nero Fernandez wrote: > As far as the adeos patch is concerned, i took a recent one (2.6.32) and > back-ported > it to 2.6.18, so as not to lose out on any new Adeos-only upgrades. There is no such thing as an Adeos patch for linux 2.6.32 on the ARM platforme. --

Re: [Xenomai-core] Fwd: problem in pthread_mutex_lock/unlock

2010-06-24 Thread Gilles Chanteperdrix
Nero Fernandez wrote: > > Yes, the measurements are on no-load scenarios. > I will try to repeat my measurements with system-loads as you suggest. You can find a working root filesystem image with Xenomai 2.5.3 compiled here: http://www.xenomai.org/~gch/pub/rootfs-arm926-ejs.tar.bz2 The root pas

Re: [Xenomai-core] Fwd: problem in pthread_mutex_lock/unlock

2010-06-24 Thread Nero Fernandez
Yes, the measurements are on no-load scenarios. I will try to repeat my measurements with system-loads as you suggest. Following is the cpu-info of my board: -- Processor : ARM926EJ-S rev 5 (v5l) BogoMIPS: 131.48 Features

Re: [Xenomai-core] [PATCH] Mayday support

2010-06-24 Thread Jan Kiszka
Philippe Gerum wrote: > I've toyed a bit to find a generic approach for the nucleus to regain > complete control over a userland application running in a syscall-less > loop. > > The original issue was about recovering gracefully from a runaway > situation detected by the nucleus watchdog, where a

Re: [Xenomai-core] Fwd: problem in pthread_mutex_lock/unlock

2010-06-24 Thread Gilles Chanteperdrix
Nero Fernandez wrote: > Thanks for your response, Philippe. > > The concerns while the carrying out my experiments were to: > > - compare xenomai co-kernel overheads (timer and context switch latencies) >in xenomai-space vs similar native-linux overheads. These are > presented in >the fi

Re: [Xenomai-core] Fwd: problem in pthread_mutex_lock/unlock

2010-06-24 Thread Nero Fernandez
Thanks for your response, Philippe. The concerns while the carrying out my experiments were to: - compare xenomai co-kernel overheads (timer and context switch latencies) in xenomai-space vs similar native-linux overheads. These are presented in the first two sheets. - find out, how addi

Re: [Xenomai-core] [PATCH] Mayday support (was: Re: [RFC] Break out of endless user space loops)

2010-06-24 Thread Philippe Gerum
On Thu, 2010-06-24 at 11:22 +0200, Tschaeche IT-Services wrote: > On Sat, Jun 19, 2010 at 01:11:17AM +0200, Philippe Gerum wrote: > > On Wed, 2010-06-09 at 20:11 +0200, Tschaeche IT-Services wrote: > > > On Wed, Jun 09, 2010 at 12:41:23PM +0200, Philippe Gerum wrote: > > > > We definitely need user

Re: [Xenomai-core] [PATCH] Mayday support

2010-06-24 Thread Jan Kiszka
Tschaeche IT-Services wrote: > On Sat, Jun 19, 2010 at 01:11:17AM +0200, Philippe Gerum wrote: >> On Wed, 2010-06-09 at 20:11 +0200, Tschaeche IT-Services wrote: >>> On Wed, Jun 09, 2010 at 12:41:23PM +0200, Philippe Gerum wrote: We definitely need user feedback on this. Typically, does arming