On Thu, 2014-10-02 at 14:13 -0700, Nishanth Aravamudan wrote: > Ben & Michael, > > What's the status of these patches?
Waiting for somebody to review them ? :-) Cheers, Ben. > Thanks, > Nish > > On 27.08.2014 [17:33:59 +0800], Li Zhong wrote: > > With commit 2fabf084b6ad ("powerpc: reorder per-cpu NUMA information's > > initialization"), during boottime, cpu_numa_callback() is called > > earlier(before their online) for each cpu, and verify_cpu_node_mapping() > > uses cpu_to_node() to check whether siblings are in the same node. > > > > It skips the checking for siblings that are not online yet. So the only > > check done here is for the bootcpu, which is online at that time. But > > the per-cpu numa_node cpu_to_node() uses hasn't been set up yet (which > > will be set up in smp_prepare_cpus()). > > > > So I saw something like following reported: > > [ 0.000000] CPU thread siblings 1/2/3 and 0 don't belong to the same > > node! > > > > As we don't actually do the checking during this early stage, so maybe > > we could directly call numa_setup_cpu() in do_init_bootmem(). > > > > Cc: Nishanth Aravamudan <n...@linux.vnet.ibm.com> > > Cc: Nathan Fontenot <nf...@linux.vnet.ibm.com> > > Signed-off-by: Li Zhong <zh...@linux.vnet.ibm.com> > > --- > > arch/powerpc/mm/numa.c | 3 +-- > > 1 file changed, 1 insertion(+), 2 deletions(-) > > > > diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c > > index d7737a5..9918c02 100644 > > --- a/arch/powerpc/mm/numa.c > > +++ b/arch/powerpc/mm/numa.c > > @@ -1128,8 +1128,7 @@ void __init do_init_bootmem(void) > > * early in boot, cf. smp_prepare_cpus(). > > */ > > for_each_possible_cpu(cpu) { > > - cpu_numa_callback(&ppc64_numa_nb, CPU_UP_PREPARE, > > - (void *)(unsigned long)cpu); > > + numa_setup_cpu((unsigned long)cpu); > > } > > } > > > > -- > > 1.9.1 > > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev