Thread (15 messages) 15 messages, 4 authors, 2021-02-05

Re: [PATCH v11 5/5] kasan: don't run tests in async mode

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From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Date: 2021-01-30 16:59:01
Also in: lkml


On 1/30/21 4:52 PM, Vincenzo Frascino wrote:
From: Andrey Konovalov <redacted>

Asynchronous KASAN mode doesn't guarantee that a tag fault will be
detected immediately and causes tests to fail. Forbid running them
in asynchronous mode.

Signed-off-by: Andrey Konovalov <redacted>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>

With:

[   18.283644] 1..1
[   18.284167]     # Subtest: kasan
[   18.284444]     1..45
[   18.295536]     # kmalloc_oob_right: can't run KASAN tests in async mode
[   18.296873]     # kmalloc_oob_right: failed to initialize: -1
[   18.303714]     not ok 1 - kmalloc_oob_right
[   18.316439]     # kmalloc_oob_left: can't run KASAN tests in async mode
[   18.319466]     # kmalloc_oob_left: failed to initialize: -1
[   18.325001]     not ok 2 - kmalloc_oob_left

Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
quoted hunk ↗ jump to hunk
---
 lib/test_kasan.c | 4 ++++
 1 file changed, 4 insertions(+)
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 7285dcf9fcc1..f82d9630cae1 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -51,6 +51,10 @@ static int kasan_test_init(struct kunit *test)
 		kunit_err(test, "can't run KASAN tests with KASAN disabled");
 		return -1;
 	}
+	if (kasan_flag_async) {
+		kunit_err(test, "can't run KASAN tests in async mode");
+		return -1;
+	}
 
 	multishot = kasan_save_enable_multi_shot();
 	hw_set_tagging_report_once(false);
-- 
Regards,
Vincenzo

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