Messages in this thread | | | Date | Sat, 11 Feb 2023 12:13:17 +0200 | From | Mike Rapoport <> | Subject | [GIT PULL] memblock: Revert "mm: Always release pages to the buddy allocator in memblock_free_late()." |
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Hi Linus,
The following changes since commit 4ec5183ec48656cec489c49f989c508b68b518e3:
Linux 6.2-rc7 (2023-02-05 13:13:28 -0800)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock tags/fixes-2023-02-11
for you to fetch changes up to 647037adcad00f2bab8828d3d41cd0553d41f3bd:
Revert "mm: Always release pages to the buddy allocator in memblock_free_late()." (2023-02-07 13:07:37 +0200)
---------------------------------------------------------------- Revert "mm: Always release pages to the buddy allocator in memblock_free_late()."
This reverts commit 115d9d77bb0f9152c60b6e8646369fa7f6167593.
The pages being freed by memblock_free_late() have already been initialized, but if they are in the deferred init range, __free_one_page() might access nearby uninitialized pages when trying to coalesce buddies, which will cause a crash.
A proper fix will be more involved so revert this change for the time being.
---------------------------------------------------------------- Aaron Thompson (1): Revert "mm: Always release pages to the buddy allocator in memblock_free_late()."
mm/memblock.c | 8 +------- tools/testing/memblock/internal.h | 4 ---- 2 files changed, 1 insertion(+), 11 deletions(-)
-- Sincerely yours, Mike.
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