From: "Arnd Bergmann" <arnd@arndb.de>
To: "Guenter Roeck" <linux@roeck-us.net>,
"Alessandro Carminati" <acarmina@redhat.com>,
linux-kselftest@vger.kernel.org
Cc: "Dave Airlie" <airlied@gmail.com>,
"Maíra Canal" <mcanal@igalia.com>,
"Dan Carpenter" <dan.carpenter@linaro.org>,
"Kees Cook" <keescook@chromium.org>,
"Daniel Díaz" <daniel.diaz@linaro.org>,
"David Gow" <davidgow@google.com>,
"Arthur Grillo" <arthurgrillo@riseup.net>,
"Brendan Higgins" <brendan.higgins@linux.dev>,
"Naresh Kamboju" <naresh.kamboju@linaro.org>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Maxime Ripard" <mripard@kernel.org>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"Alessandro Carminati" <alessandro.carminati@gmail.com>,
"Jani Nikula" <jani.nikula@intel.com>,
dri-devel@lists.freedesktop.org, kunit-dev@googlegroups.com,
Linux-Arch <linux-arch@vger.kernel.org>,
linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
loongarch@lists.linux.dev, x86@kernel.org,
"Linaro Kernel Functional Testing" <lkft@linaro.org>,
"Heiko Carstens" <hca@linux.ibm.com>,
"Vasily Gorbik" <gor@linux.ibm.com>,
"Alexander Gordeev" <agordeev@linux.ibm.com>
Subject: Re: [PATCH v4 10/14] s390: Add support for suppressing warning backtraces
Date: Fri, 21 Mar 2025 18:33:19 +0100 [thread overview]
Message-ID: <a6f90bdb-8459-4d33-8874-7e724bd22d9f@app.fastmail.com> (raw)
In-Reply-To: <b6bb68f0-7e93-4db2-9fe6-f615f06ddeb1@roeck-us.net>
On Fri, Mar 21, 2025, at 18:05, Guenter Roeck wrote:
> On 3/13/25 04:43, Alessandro Carminati wrote:
>
> gcc 10.3.0 and later do not have this problem. I also tried s390 builds
> with gcc 9.4
> and 9.5 but they both crash for unrelated reasons.
>
> If this is a concern, the best idea I have is to make KUNIT_SUPPRESS_BACKTRACE
> depend on, say,
> depends on CC_IS_CLANG || (CC_IS_GCC && GCC_VERSION >= 100300)
>
> A more complex solution might be to define an architecture flag such
> as HAVE_SUPPRESS_BACKTRACE, make that conditional on the gcc version
> for s390 only, and make KUNIT_SUPPRESS_BACKTRACE depend on it.
That is probably fine, there are very few users on s390 that build
their own kernels, and they likely all have modern compilers anyway.
I should still send a patch to raise the minimum compiler version to
gcc-8.1, but unfortunately that is not enough here.
Arnd
next prev parent reply other threads:[~2025-03-21 17:33 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-13 11:43 [PATCH v4 00/14] Add support for suppressing warning backtraces Alessandro Carminati
2025-03-13 11:43 ` [PATCH v4 01/14] bug/kunit: Core " Alessandro Carminati
2025-03-29 8:03 ` David Gow
2025-03-13 11:43 ` [PATCH v4 02/14] kunit: bug: Count suppressed " Alessandro Carminati
2025-03-29 8:03 ` David Gow
2025-03-13 11:43 ` [PATCH v4 03/14] kunit: Add test cases for backtrace warning suppression Alessandro Carminati
2025-03-29 8:03 ` David Gow
2025-03-13 11:43 ` [PATCH v4 04/14] kunit: Add documentation for warning backtrace suppression API Alessandro Carminati
2025-03-13 11:43 ` [PATCH v4 05/14] drm: Suppress intentional warning backtraces in scaling unit tests Alessandro Carminati
2025-03-13 11:43 ` [PATCH v4 06/14] x86: Add support for suppressing warning backtraces Alessandro Carminati
2025-03-29 8:04 ` David Gow
2025-04-01 17:08 ` Peter Zijlstra
2025-04-01 17:53 ` Guenter Roeck
2025-04-01 20:00 ` Josh Poimboeuf
2025-04-02 7:42 ` Peter Zijlstra
2025-04-02 7:45 ` Peter Zijlstra
2025-03-13 11:43 ` [PATCH v4 07/14] arm64: " Alessandro Carminati
2025-03-13 12:25 ` Will Deacon
2025-03-13 16:40 ` Alessandro Carminati
2025-03-18 15:59 ` Will Deacon
2025-03-18 16:39 ` Guenter Roeck
2025-03-19 8:05 ` Christophe Leroy
2025-03-19 10:20 ` Dan Carpenter
2025-03-19 13:11 ` Guenter Roeck
2025-03-13 11:43 ` [PATCH v4 08/14] loongarch: " Alessandro Carminati
2025-03-13 11:43 ` [PATCH v4 09/14] parisc: " Alessandro Carminati
2025-03-13 11:43 ` [PATCH v4 10/14] s390: " Alessandro Carminati
2025-03-21 17:05 ` Guenter Roeck
2025-03-21 17:33 ` Arnd Bergmann [this message]
2025-03-21 21:05 ` Alessandro Carminati
2025-03-24 10:47 ` Heiko Carstens
2025-03-13 11:43 ` [PATCH v4 11/14] sh: " Alessandro Carminati
2025-03-13 11:43 ` [PATCH v4 12/14] sh: Move defines needed " Alessandro Carminati
2025-03-13 11:43 ` [PATCH v4 13/14] riscv: Add support " Alessandro Carminati
2025-03-13 11:43 ` [PATCH v4 14/14] powerpc: " Alessandro Carminati
2025-03-13 17:17 ` [PATCH v4 00/14] " Kees Cook
2025-03-13 17:24 ` Maxime Ripard
2025-03-13 18:31 ` Guenter Roeck
2025-03-13 22:05 ` Andrew Morton
2025-03-28 22:14 ` Shuah Khan
2025-03-28 22:53 ` Andrew Morton
2025-03-28 10:38 ` Mickaël Salaün
2025-03-28 14:20 ` Maxime Ripard
2025-03-29 8:03 ` David Gow
2025-04-26 2:32 ` Andrew Morton
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