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authorQian Cai <cai@lca.pw>2019-09-23 15:34:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-09-24 15:54:07 -0700
commitc59180ae3e5b43d3534748b19a57905712ea5fff (patch)
tree5fd5580357558128de445b77fe7fd54bf2d6bc6c
parent0e965a6bda80f3227dfb74af6ae644e396beaacb (diff)
downloadlinux-c59180ae3e5b43d3534748b19a57905712ea5fff.tar.bz2
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 <cai@lca.pw> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--lib/Kconfig.debug2
1 files changed, 1 insertions, 1 deletions
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