Andrew Morton wrote: > On Thu, 15 Feb 2007 22:14:45 -0800 Dan Hecht <dhecht at vmware.com> wrote: > > >>> config PREEMPT >>> bool "Preemptible Kernel (Low-Latency Desktop)" >>> + depends on !XEN >>> help >>> This option reduces the latency of the kernel by making >>> all kernel code (that is not executing in a critical section) >>> >>> > > Oh, so that's why it doesn't break when CONFIG_PREEMPT=y. In which case > that preempt_disable() I spotted is wrong-and-unneeded. > > Why doesn't Xen work with preemption?? > I've forgotten the details. Ian? Keir? Steven? Maybe it can be done. J