diff options
Diffstat (limited to 'mm/page_poison.c')
| -rw-r--r-- | mm/page_poison.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/page_poison.c b/mm/page_poison.c index 655dc5895604..98438985e1ed 100644 --- a/mm/page_poison.c +++ b/mm/page_poison.c @@ -2,6 +2,7 @@ #include <linux/kernel.h> #include <linux/string.h> #include <linux/mm.h> +#include <linux/mmdebug.h> #include <linux/highmem.h> #include <linux/page_ext.h> #include <linux/poison.h> @@ -45,7 +46,7 @@ static bool single_bit_flip(unsigned char a, unsigned char b) return error && !(error & (error - 1)); } -static void check_poison_mem(unsigned char *mem, size_t bytes) +static void check_poison_mem(struct page *page, unsigned char *mem, size_t bytes) { static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 10); unsigned char *start; @@ -70,6 +71,7 @@ static void check_poison_mem(unsigned char *mem, size_t bytes) print_hex_dump(KERN_ERR, "", DUMP_PREFIX_ADDRESS, 16, 1, start, end - start + 1, 1); dump_stack(); + dump_page(page, "pagealloc: corrupted page details"); } static void unpoison_page(struct page *page) @@ -83,7 +85,7 @@ static void unpoison_page(struct page *page) * that is freed to buddy. Thus no extra check is done to * see if a page was poisoned. */ - check_poison_mem(kasan_reset_tag(addr), PAGE_SIZE); + check_poison_mem(page, kasan_reset_tag(addr), PAGE_SIZE); kasan_enable_current(); kunmap_atomic(addr); } |