On Fri, Jul 31, 2009 at 02:30:07PM -0700, David Daney wrote: > In mm/slab.c the function do_ccupdate_local requires that interrupts > be disabled. If they are not, we panic with CONFIG_DEBUG_SLAB. > > So we disable interrupts while processing IPIs. Also these are not > shared irqs, so get rid of the IRQF_SHARED flag. Yes, this one will ruin your day. Ralf