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authorAlexander Potapenko <glider@google.com>2019-07-16 16:27:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-16 19:23:22 -0700
commit5015a300a522c8fb542dc993140e4c360cf4cf5f (patch)
treedbad49fce32d12ce9c68a81656963cb1803992a0 /lib/Kconfig.debug
parent8e060c21ae2c265a2b596e9e7f9f97ec274151a4 (diff)
lib: introduce test_meminit module
Add tests for heap and pagealloc initialization. These can be used to check init_on_alloc and init_on_free implementations as well as other approaches to initialization. Expected test output in the case the kernel provides heap initialization (e.g. when running with either init_on_alloc=1 or init_on_free=1): test_meminit: all 10 tests in test_pages passed test_meminit: all 40 tests in test_kvmalloc passed test_meminit: all 60 tests in test_kmemcache passed test_meminit: all 10 tests in test_rcu_persistent passed test_meminit: all 120 tests passed! Link: http://lkml.kernel.org/r/20190529123812.43089-4-glider@google.com Signed-off-by: Alexander Potapenko <glider@google.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Christoph Lameter <cl@linux.com> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Kostya Serebryany <kcc@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Sandeep Patil <sspatil@android.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Jann Horn <jannh@google.com> Cc: Marco Elver <elver@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/Kconfig.debug')
-rw-r--r--lib/Kconfig.debug8
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 4ac4ca21a30a..c6ee805202bd 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -2076,6 +2076,14 @@ config TEST_STACKINIT
If unsure, say N.
+config TEST_MEMINIT
+ tristate "Test heap/page initialization"
+ help
+ Test if the kernel is zero-initializing heap and page allocations.
+ This can be useful to test init_on_alloc and init_on_free features.
+
+ If unsure, say N.
+
endif # RUNTIME_TESTING_MENU
config MEMTEST