Re: [PATCH v12 7/7] kasan: don't run tests in async mode
From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2021-02-09 12:04:57
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On Mon, Feb 08, 2021 at 04:56:17PM +0000, 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>
That's missing your SoB.
quoted hunk ↗ jump to hunk
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);
I think we can still run the kasan tests in async mode if we check the TFSR_EL1 at the end of each test by calling mte_check_tfsr_exit(). -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel