Messages in this thread | | | From | Dan Williams <> | Date | Tue, 18 Feb 2020 19:25:15 -0800 | Subject | Re: [PATCH v2 RESEND] mm/sparsemem: pfn_to_page is not valid yet on SPARSEMEM |
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On Tue, Feb 18, 2020 at 7:05 PM Baoquan He <bhe@redhat.com> wrote: > > From: Wei Yang <richardw.yang@linux.intel.com> > > When we use SPARSEMEM instead of SPARSEMEM_VMEMMAP, pfn_to_page() > doesn't work before sparse_init_one_section() is called. This leads to a > crash when hotplug memory:
I'd also add:
"On x86 the impact is limited to x86_32 builds, or x86_64 configurations that override the default setting for SPARSEMEM_VMEMMAP".
Other than that:
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
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