---------- Debut du message initial -----------

A      : "xenomai-core" xenomai-core@gna.org,"Gilles
Chanteperdrix" [EMAIL PROTECTED]
Copies :
Date   : Mon, 18 Sep 2006 11:30:45 +0200
Objet  : rare brokenness in latency output - FPU bug!

> Gilles, what info do you need? It's all the latest on x86 here:
> (.config attached), ipipe-1.4, SVN #1646, gcc4.1.0.

It would be interesting if you could:
- try reverting the last FPU changes
- try to narrow down the issue by reducing the number of
threads created
by switchtest (for example, try keeping only the threads whose
- try dumping the FPU context before the first fp_regs_set,
chances are that the FPU context is already clobbered before
the first fp_regs_set;
when the FPU context is already clobbered, running fp_regs_set
set the
value of the already set registers to qnan, and fp_regs_check
INT_MAX when the register is set to qnan. I will send tomorrow
header I use for converting FPU contexts into human readable form.

                 Gilles Chanteperdrix

Accédez au courrier électronique de La Poste
sur www.laposte.net ou sur 3615 LAPOSTENET (0,34€ TTC /mn)
1 Giga de stockage gratuit – Antispam et antivirus intégrés

Xenomai-core mailing list

Reply via email to