Re: latest -git: WARNING: at arch/x86/kernel/ipi.c:123 send_IPI_mask_bitmask+0xc3/0xe0()

Andi Kleen
2008-08-20T01:37:49Z

On Tue, Aug 19, 2008 at 09:51:44PM +0200, Vegard Nossum wrote:
> Hi,
>
> With latest -git (1fca25427482387689fa27594c992a961d98768f), I got
> this on reading from /dev/cpu/*/* while hot-unplugging cpu1.

It's generally known the oprofile doesn't support CPU hotplug well.
Someone needs to make a project out of fixing it properly. Right now
it's just a "don't do that when it hurts"

-Andi