On Friday 03 February 2006 10:17, Andrew Morton wrote: > > It seems that powerpc has gone and changed their implementation of percpu > data so that there is no memory allocated for not-possible CPUs. To save a > bit of RAM. > > This means that any code which does > > for (i = 0; i < NR_CPUS; i++) > touch(percpudata(i)) > > will explode on powerpc.
It also explodes since some time on x86-64. But I added a workaround now (or rather sent one and Linus dropped it) to point the not possible CPUs to the reference data and not free it. With that violating that protocol is mostly harmless. Later the plan was to point it to unmapped data to catch all users. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
