Re: [PATCH] mm/alloc: fallback to first node if the wanted node offline

From: Wei Yang
Date: Tue Dec 04 2018 - 01:55:03 EST


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()?

BTW, I don't catch the function call flow to this point. Would you mind
giving me some hint?

--
Wei Yang
Help you, Help me