On Sun, Oct 21, 2012 at 02:02:42PM +0800, caiyuqing wrote: > hi, all. > I have some questions about context switch on arm Linux (my target is > ARMv7-a). > 1. Does arm linux support FCSE to handle the context switch?
No, mainline Linux does not support FCSE. However, you can use Gilles' unoffical (but working) FCSE branches at http://git.xenomai.org/?p=ipipe-gch.git;a=summary > 2. If using FCSE, that means the processes number limit is 128 and the > memory limit is 32MB per process, is that right? Yes and no. Gilles' patches offer a "strict mode" and a "best effort" mode. The strict mode does have the limitation, but the best effort mode does not. HTH, Richard -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
