Re: [PATCH v3] mm/kasan: dump alloc and free stack for page allocator
From: Walter Wu <hidden>
Date: 2019-09-12 14:08:38
Also in:
linux-mediatek, linux-mm, lkml
quoted hunk ↗ jump to hunk
extern void __reset_page_owner(struct page *page, unsigned int order);diff --git a/lib/Kconfig.kasan b/lib/Kconfig.kasan index 6c9682ce0254..dc560c7562e8 100644 --- a/lib/Kconfig.kasan +++ b/lib/Kconfig.kasan@@ -41,6 +41,8 @@ config KASAN_GENERIC select SLUB_DEBUG if SLUB select CONSTRUCTORS select STACKDEPOT + select PAGE_OWNER + select PAGE_OWNER_FREE_STACK help Enables generic KASAN mode. Supported in both GCC and Clang. With GCC it requires version 4.9.2@@ -63,6 +65,8 @@ config KASAN_SW_TAGS select SLUB_DEBUG if SLUB select CONSTRUCTORS select STACKDEPOT + select PAGE_OWNER + select PAGE_OWNER_FREE_STACK help
What is the difference between PAGE_OWNER+PAGE_OWNER_FREE_STACK and DEBUG_PAGEALLOC? If you directly enable PAGE_OWNER+PAGE_OWNER_FREE_STACK PAGE_OWNER_FREE_STACK,don't you think low-memory device to want to use KASAN? _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel