Re: [Xenomai-core] [Xenomai-help] Xenomai v2.4.9

[Andreas Glatz <andreasglatz@domain.hid>]

Hi Philippe,

On Fri, 2009-08-21 at 18:00 +0200, Philippe Gerum wrote:
> On Fri, 2009-08-21 at 11:44 -0400, Andreas Glatz wrote:
> > Hi,
> > 
> > Is there a reason why the following patch didn't make it into 2.4.9?
> > 
> 
> Yes, unless I'm mistaken, no feedback received about that specific patch
> (only about the previous one). 

True... Sorry about that...

> Besides, this may have some impact on
> other ppc platforms, so this needs more testing just to make sure this
> does not introduce any regression for them.

Fair enough.

> 
> In any case, the pipeline layer is decoupled from the Xenomai code base,
> so you don't have to wait for another Xenomai release including an
> updated pipeline patch. Just pick the I-pipe that fits from the Adeos
> download area when it is available.

Now we r running 2.4.9 with that patch applied. Seems to work fine... 


Regards,
Andreas




> 
> > See: https://mail.gna.org/public/xenomai-help/2009-08/msg00023.html
> > 
> > I included it into our system. I didn't see any problems so far...
> > 
> 
> Good news. Thanks.
> 
> > Regards,
> > 
> > Andreas
> > 
> > 
> > On Wed, 2009-08-19 at 17:46 +0200, Philippe Gerum wrote:
> > > Here is the ninth maintenance release for the v2.4.x branch:
> > > 
> > > http://download.gna.org/xenomai/stable/xenomai-2.4.9.tar.bz2
> > > 
> > > Special note to PowerPC (32/64) users: the FPU management code has been
> > > sanitized an awful lot in this release compared to 2.4.8 and earlier
> > > for this architecture. Really.  Several bugs which may badly break the 
> > > floating-point registers state "in some circumstances" have
> > > been fixed.
> > > 
> > > Therefore I would strongly recommend to upgrade your Xenomai baseline
> > > to 2.4.9, and ideally, kernel 2.6/powerpc users should also move their
> > > I-pipe support to 2.6.30-2.7-00, or at the very least backport _both_ of
> > > the following patches, in that order, to their kernel tree:
> > > 
> > > 1. http://git.denx.de/?p=ipipe-2.6.git;a=blobdiff;f=arch/powerpc/kernel/fpu.S;h=503de51bed94cc2fc4d17b4342885d0329ba5c1b;hp=2436df33c6f4433d7e7f54b88caad6ba570cf3f6;hb=4a9cffba3407f1238646847aad06712d8952a310;hpb=4d121ab41bda8a269c20b0a1077af8f3ef400105
> > > 2. http://git.denx.de/?p=ipipe-2.6.git;a=commitdiff;h=0024416dcce817854cbf80eff420b21ef615672c;hp=d0353a6d1b4b4af7f6990dfa27055c799b3756a9
> > > 
> > > People running a 2.4.25 kernel (the only one officially supported by
> > > Xenomai from the legacy 2.4/ppc kernel series) should definitely
> > > upgrade to the following I-pipe patch, to close a few important
> > > issues, including the FPU ones:
> > > http://download.gna.org/adeos/patches/v2.4/ppc/adeos-ipipe-2.4.25-ppc-DENX-2.2-01.patch
> > > 
> > > Panic mode mitigation: This is a PowerPC-related issue only. Other
> > > architectures were not affected by those bugs.
> > > 
> > > = You have been warned =
> > > 
> > > Not scared enough? Ok. Here is the short log for v2.4.9:
> > > 
> > > Gilles Chanteperdrix (3):
> > >       arm: fix syscalls with gcc 4.3.2
> > >       arm: Disable preemptible switch.
> > >       posix: fix shm leak
> > > 
> > > Graf Yang (1):
> > >       blackfin: Update __sched_latency for blackfin processors
> > > 
> > > Matteo Facchinetti (1):
> > >       rtcan: fix MPC5xxx_GPIO definition for 2.6.2[0-4] kernels
> > > 
> > > Philippe Gerum (54):
> > >       powerpc: add calibration data for Freescale's ADS8272
> > >       powerpc: add calibration data for TQ's TQM8560
> > >       powerpc: upgrade Adeos/powerpc support
> > >       build: upgrade to autoconf >= 2.62
> > >       powerpc: add calibration info for 440EP Yosemite
> > >       powerpc: update Adeos/powerpc support
> > >       powerpc: unify calibration values for PA-Semi
> > >       powerpc: upgrade I-pipe/2.4 support to 2.4.25-ppc-2.0-01
> > >       x86: upgrade I-pipe support to 2.6.29.5-x86-2.4-01
> > >       x86: upgrade I-pipe to 2.6.29.5-x86-2.4-02
> > >       powerpc: init FPU for userland Xenomai threads as well
> > >       powerpc: discard useless backup field
> > >       powerpc: fix fpu backup area layout
> > >       nucleus: fix potential init race of the main pod
> > >       powerpc: sanitize kthread init stack setup
> > >       nucleus: port to 2.6.30
> > >       native: force no more than PTHREAD_STACK_MIN bytes for stack size
> > >       powerpc: enable FE0/FE1 exceptions during fpu init
> > >       powerpc: flip FE0/FE1 when saving/restoring the FPU in RT mode
> > >       x86: fix wrap_switch_iobitmap() for 2.6.30
> > >       x86: remove now useless I/O bitmap switch code
> > >       nucleus: do not dereference thread memory after deletion
> > >       powerpc: raise SYS_STACKPOOLSZ to 128Kb for 64bit archs
> > >       nucleus: use larger default sizes for heap and stack pool
> > >       powerpc: reserve stack overhead in kthread trampoline
> > >       powerpc: sanitize FPU handling helpers
> > >       testsuite: add missing compiler barriers to switchtest
> > >       testsuite: do not specify stack sizes lower than PTHREAD_STACK_MIN
> > >       powerpc: upgrade legacy I-pipe support to 2.4.25-ppc-2.1-00
> > >       powerpc: upgrade legacy I-pipe support to 2.6.20-powerpc-1.9-00
> > >       powerpc: upgrade I-pipe support to 2.6.30-powerpc-2.6-03
> > >       arm: upgrade I-pipe support to 2.6.28-arm-1.12-03
> > >       arm: upgrade I-pipe support to 2.6.28-arm-1.13-01
> > >       x86: fix 2.6.30 build in 32bit mode
> > >       x86: upgrade I-pipe support to 2.6.30-x86-2.4-05
> > >       powerpc: upgrade I-pipe support to 2.6.30-powerpc-2.7-00
> > >       rtai: fix build with CONFIG_PROC_FS disabled
> > >       blackfin: upgrade I-pipe support to 2.6.30-1.11-00
> > >       asm-generic: stop using deprecated find_task_by_pid_type_ns()
> > >       x86: fix include for kernel >= 2.6.30
> > >       doc: fix GIT tree detection
> > >       blackfin: do not consider IPEND[4] for scheduling deferral
> > >       powerpc: reinstate FE0/FE1 depending on the per-task fpexc_mode
> > >       powerpc: do not leak MSR_FP when back to secondary mode
> > >       powerpc: upgrade legacy I-pipe support to 2.4.25-ppc-2.2-01
> > >       nucleus: trap wrong interrupt state upon return from hardening
> > >       nucleus: postpone sanity check to allow for signal receipt
> > >       arm: upgrade I-pipe support to 2.6.30-arm-1.14-00, 2.6.28-arm-1.12-04, 2.6.29-arm-1.13-02
> > >       scripts: use default autoconf version
> > >       powerpc: upgrade legacy I-pipe support to 2.6.20-powerpc-1.9-01
> > >       build: update version stamp
> > >       build: bootstrap
> > >       doc: regenerate documentation
> > > 
> > > Stefan Kisdaroczi (1):
> > >       debian: fix kernel patch preparation script not to truncate init/Kconfig
> > >