On 05/14/2015 02:27 PM, Borislav Petkov wrote: > Remove stable@ from CC. > > On Thu, May 14, 2015 at 08:29:55PM +0200, Ingo Molnar wrote: >> We could allocate them on the boot CPU side and hand them over to the >> secondary CPU. > > Yeah, something along those lines. I mean, they're allocated and in-use > during the complete system lifetime, we might just as well allocate them > all in one go. Btw, what's our allocator that early, memblock? > > Still, what I find strange is why are we seeing this only now? Is it > because it had to be a big box (cpu >= 128) or something else changed...? >
Quite probable. You don't really want to allocate them until you know if a CPU at least exists, though. I like Ingo's suggestion of allocating them before CPU bringup on the initiating CPU. -hpa -- 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/