On Wed, Feb 12, 2014 at 12:09:29PM +0100, Stefan Bader wrote: > Something else here I run a kernel with CONFIG_PREEMPT not set and NR_CPUS > limited to 8 (for the 32bit kernel). So the default apic driver is used. Since > default_send_IPI_mask_logical is only used from there, I assume the trace you > got does the same. Maybe something there is wrong which would explain why we > only see it on 32bit hosts. Can you try with a different APIC driver to test this? -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html