On Thu, Jan 18, 2024 at 08:42:08AM +0200, Mike Rapoport wrote:
> (adding Huang Pei to verify this fixes the crash on loongarch)
>
It fixed 61167ad5fecd on MIPS/loongson64, tested on 3b1500 with only
this one;
My loongarch64 machine is not available now, I can not test it, sorry.
It is already applied a arch-specific workaround in v6.5+
> On Thu, Jan 18, 2024 at 02:18:53PM +0800, Yajun Deng wrote:
> > After commit 61167ad5fecd ("mm: pass nid to reserve_bootmem_region()"),
> > we set nid on all reserved pages based on memory region, but some reserved
> > memory may not be added to memory on certain architectures. The nid is
> > invalid.
> >
> > Add the nid check, make sure the nid is valid by early_pfn_to_nid().
> >
> > Fixes: 61167ad5fecd ("mm: pass nid to reserve_bootmem_region()")
> > Signed-off-by: Yajun Deng <yajun.deng@xxxxxxxxx>
> > ---
> > mm/memblock.c | 3 +++
> > 1 file changed, 3 insertions(+)
> >
> > diff --git a/mm/memblock.c b/mm/memblock.c
> > index abd92869874d..4dcb2ee35eca 100644
> > --- a/mm/memblock.c
> > +++ b/mm/memblock.c
> > @@ -2176,6 +2176,9 @@ static void __init memmap_init_reserved_pages(void)
> > start = region->base;
> > end = start + region->size;
> >
> > + if (nid == NUMA_NO_NODE || nid >= MAX_NUMNODES)
> > + nid = early_pfn_to_nid(PFN_DOWN(start));
> > +
> > reserve_bootmem_region(start, end, nid);
> > }
> > }
> > --
> > 2.25.1
> >
>
> --
> Sincerely yours,
> Mike.
