From c59180ae3e5b43d3534748b19a57905712ea5fff Mon Sep 17 00:00:00 2001 From: Qian Cai Date: Mon, 23 Sep 2019 15:34:10 -0700 Subject: [PATCH] mm/kmemleak: increase the max mem pool to 1M There are some machines with slow disk and fast CPUs. When they are under memory pressure, it could take a long time to swap before the OOM kicks in to free up some memory. As the results, it needs a large mem pool for kmemleak or suffering from higher chance of a kmemleak metadata allocation failure. 524288 proves to be the good number for all architectures here. Increase the upper bound to 1M to leave some room for the future. Link: http://lkml.kernel.org/r/1565807572-26041-1-git-send-email-cai@lca.pw Signed-off-by: Qian Cai Acked-by: Catalin Marinas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- lib/Kconfig.debug | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index c6975cded461..6b1b1703a646 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -579,7 +579,7 @@ config DEBUG_KMEMLEAK config DEBUG_KMEMLEAK_MEM_POOL_SIZE int "Kmemleak memory pool size" depends on DEBUG_KMEMLEAK - range 200 40000 + range 200 1000000 default 16000 help Kmemleak must track all the memory allocations to avoid