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| Started by | Mika Penttilä <mika.j.penttila@gmail.com> |
|---|---|
| First post | 2015-09-29 06:10 +0200 |
| Last post | 2015-09-29 06:10 +0200 |
| Articles | 1 — 1 participant |
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Deferred struct page initialization issue vs memblocks Mika Penttilä <mika.j.penttila@gmail.com> - 2015-09-29 06:10 +0200
| From | Mika Penttilä <mika.j.penttila@gmail.com> |
|---|---|
| Date | 2015-09-29 06:10 +0200 |
| Subject | Deferred struct page initialization issue vs memblocks |
| Message-ID | <qdUoN-3IA-1@gated-at.bofh.it> |
deferred_init_memmap() uses for_each_mem_pfn_range() which (in x86) uses memblocks. Because of CONFIG_ARCH_DISCARD_MEMBLOCK, the memblock infos have already been freed to page allocator (in free_low_memory_core_early()), which happens before deferred_init_memmap(). Maybe the fix is not to allow DISCARD_MEMBLOCK in deferred case, or discard memblock infos later. Thanks, Mika -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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