On Tue, Dec 4, 2018 at 2:54 PM Wei Yang <richard.weiyang@xxxxxxxxx> wrote: > > On Tue, Dec 04, 2018 at 11:05:57AM +0800, Pingfan Liu wrote: > >During my test on some AMD machine, with kexec -l nr_cpus=x option, the > >kernel failed to bootup, because some node's data struct can not be allocated, > >e.g, on x86, initialized by init_cpu_to_node()->init_memory_less_node(). But > >device->numa_node info is used as preferred_nid param for > > could we fix the preferred_nid before passed to > __alloc_pages_nodemask()? > Yes, we can doit too, but what is the gain? > BTW, I don't catch the function call flow to this point. Would you mind > giving me some hint? > You can track the code along slab_alloc() ->...->__alloc_pages_nodemask() Thanks, Pingfan
