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From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, Shuah Khan <shuah@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kselftest@vger.kernel.org, Mark Brown <broonie@kernel.org>,
	Shuah Khan <skhan@linuxfoundation.org>
Subject: [PATCH v2 2/4] kselftest/arm64: Log unexpected asynchronous MTE faults
Date: Tue, 19 Apr 2022 11:32:41 +0100	[thread overview]
Message-ID: <20220419103243.24774-3-broonie@kernel.org> (raw)
In-Reply-To: <20220419103243.24774-1-broonie@kernel.org>

Help people figure out problems by printing a diagnostic when we get an
unexpected asynchronous fault.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
---
 tools/testing/selftests/arm64/mte/mte_common_util.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/arm64/mte/mte_common_util.c b/tools/testing/selftests/arm64/mte/mte_common_util.c
index 0328a1e08f65..5327aa958171 100644
--- a/tools/testing/selftests/arm64/mte/mte_common_util.c
+++ b/tools/testing/selftests/arm64/mte/mte_common_util.c
@@ -37,6 +37,10 @@ void mte_default_handler(int signum, siginfo_t *si, void *uc)
 		if (si->si_code == SEGV_MTEAERR) {
 			if (cur_mte_cxt.trig_si_code == si->si_code)
 				cur_mte_cxt.fault_valid = true;
+			else
+				ksft_print_msg("Got unexpected SEGV_MTEAERR at pc=$lx, fault addr=%lx\n",
+					       ((ucontext_t *)uc)->uc_mcontext.pc,
+					       addr);
 			return;
 		}
 		/* Compare the context for precise error */
-- 
2.30.2


WARNING: multiple messages have this Message-ID (diff)
From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, Shuah Khan <shuah@kernel.org>
Cc: Joey Gouly <joey.gouly@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kselftest@vger.kernel.org, Mark Brown <broonie@kernel.org>,
	Shuah Khan <skhan@linuxfoundation.org>
Subject: [PATCH v2 2/4] kselftest/arm64: Log unexpected asynchronous MTE faults
Date: Tue, 19 Apr 2022 11:32:41 +0100	[thread overview]
Message-ID: <20220419103243.24774-3-broonie@kernel.org> (raw)
In-Reply-To: <20220419103243.24774-1-broonie@kernel.org>

Help people figure out problems by printing a diagnostic when we get an
unexpected asynchronous fault.

Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
---
 tools/testing/selftests/arm64/mte/mte_common_util.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/arm64/mte/mte_common_util.c b/tools/testing/selftests/arm64/mte/mte_common_util.c
index 0328a1e08f65..5327aa958171 100644
--- a/tools/testing/selftests/arm64/mte/mte_common_util.c
+++ b/tools/testing/selftests/arm64/mte/mte_common_util.c
@@ -37,6 +37,10 @@ void mte_default_handler(int signum, siginfo_t *si, void *uc)
 		if (si->si_code == SEGV_MTEAERR) {
 			if (cur_mte_cxt.trig_si_code == si->si_code)
 				cur_mte_cxt.fault_valid = true;
+			else
+				ksft_print_msg("Got unexpected SEGV_MTEAERR at pc=$lx, fault addr=%lx\n",
+					       ((ucontext_t *)uc)->uc_mcontext.pc,
+					       addr);
 			return;
 		}
 		/* Compare the context for precise error */
-- 
2.30.2


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  parent reply	other threads:[~2022-04-19 10:32 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-19 10:32 [PATCH v2 0/4] kselftest/arm64: Miscelaneous MTE test updates Mark Brown
2022-04-19 10:32 ` Mark Brown
2022-04-19 10:32 ` [PATCH v2 1/4] kselftest/arm64: Handle more kselftest result codes in MTE helpers Mark Brown
2022-04-19 10:32   ` Mark Brown
2022-04-19 10:32 ` Mark Brown [this message]
2022-04-19 10:32   ` [PATCH v2 2/4] kselftest/arm64: Log unexpected asynchronous MTE faults Mark Brown
2022-04-19 10:32 ` [PATCH v2 3/4] kselftest/arm64: Refactor parameter checking in mte_switch_mode() Mark Brown
2022-04-19 10:32   ` Mark Brown
2022-04-19 10:32 ` [PATCH v2 4/4] kselftest/arm64: Add simple test for MTE prctl Mark Brown
2022-04-19 10:32   ` Mark Brown
2022-04-22 18:27 ` [PATCH v2 0/4] kselftest/arm64: Miscelaneous MTE test updates Catalin Marinas
2022-04-22 18:27   ` Catalin Marinas
  -- strict thread matches above, loose matches on Subject: below --
2022-04-19 10:28 Mark Brown
2022-04-19 10:28 ` [PATCH v2 2/4] kselftest/arm64: Log unexpected asynchronous MTE faults Mark Brown
2022-03-11 13:51 [PATCH v2 0/4] kselftest/arm64: Miscelaneous MTE test updates Mark Brown
2022-03-11 13:51 ` [PATCH v2 2/4] kselftest/arm64: Log unexpected asynchronous MTE faults Mark Brown
2022-03-11 13:51   ` Mark Brown

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