On Wed, 15 Feb 2017 21:58:23 +0100 Nicolai Stange <nicstange@xxxxxxxxx> wrote:
> Hi Dan,
>
> your recent commit 7b79d10a2d64 ("mm: convert kmalloc_section_memmap() to
> populate_section_memmap()") seems to cause some issues with respect to
> Kasan initialization on x86.
>
> This is because Kasan's initialization (ab)uses the arch provided
> vmemmap_populate().
>
> The first one is a boot failure, see [1/3]. The commit before the
> aforementioned one works fine.
>
> The second one, i.e. [2/3], is something that hit my eye while browsing
> the source and I verified that this is indeed an issue by printk'ing and
> dumping the page tables.
>
> The third one are excessive warnings from vmemmap_verify() due to Kasan's
> NUMA_NO_NODE page populations.
urggggh.
That means these two series:
mm-fix-type-width-of-section-to-from-pfn-conversion-macros.patch
mm-devm_memremap_pages-use-multi-order-radix-for-zone_device-lookups.patch
mm-introduce-struct-mem_section_usage-to-track-partial-population-of-a-section.patch
mm-introduce-common-definitions-for-the-size-and-mask-of-a-section.patch
mm-cleanup-sparse_init_one_section-return-value.patch
mm-track-active-portions-of-a-section-at-boot.patch
mm-track-active-portions-of-a-section-at-boot-fix.patch
mm-track-active-portions-of-a-section-at-boot-fix-fix.patch
mm-fix-register_new_memory-zone-type-detection.patch
mm-convert-kmalloc_section_memmap-to-populate_section_memmap.patch
mm-prepare-for-hot-add-remove-of-sub-section-ranges.patch
mm-support-section-unaligned-zone_device-memory-ranges.patch
mm-support-section-unaligned-zone_device-memory-ranges-fix.patch
mm-support-section-unaligned-zone_device-memory-ranges-fix-2.patch
mm-enable-section-unaligned-devm_memremap_pages.patch
libnvdimm-pfn-dax-stop-padding-pmem-namespaces-to-section-alignment.patch
and
mm-devm_memremap_pages-hold-device_hotplug-lock-over-mem_hotplug_begin-done.patch
mm-validate-device_hotplug-is-held-for-memory-hotplug.patch
aren't mergable into 4.10 and presumably won't be fixed in time. I
think I'll drop all the above.
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