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647037adca
This reverts commit115d9d77bb. 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. This can, for example, trigger this BUG: BUG: unable to handle page fault for address: ffffe964c02580c8 RIP: 0010:__list_del_entry_valid+0x3f/0x70 <TASK> __free_one_page+0x139/0x410 __free_pages_ok+0x21d/0x450 memblock_free_late+0x8c/0xb9 efi_free_boot_services+0x16b/0x25c efi_enter_virtual_mode+0x403/0x446 start_kernel+0x678/0x714 secondary_startup_64_no_verify+0xd2/0xdb </TASK> A proper fix will be more involved so revert this change for the time being. Fixes:115d9d77bb("mm: Always release pages to the buddy allocator in memblock_free_late().") Signed-off-by: Aaron Thompson <dev@aaront.org> Link: https://lore.kernel.org/r/20230207082151.1303-1-dev@aaront.org Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
24 lines
417 B
C
24 lines
417 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _MM_INTERNAL_H
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#define _MM_INTERNAL_H
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/*
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* Enable memblock_dbg() messages
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*/
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#ifdef MEMBLOCK_DEBUG
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static int memblock_debug = 1;
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#endif
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#define pr_warn_ratelimited(fmt, ...) printf(fmt, ##__VA_ARGS__)
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bool mirrored_kernelcore = false;
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struct page {};
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void memblock_free_pages(struct page *page, unsigned long pfn,
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unsigned int order)
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{
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}
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#endif
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