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Message-ID: <CABVgOSmZ56p8BBFHNXqigNrH95O_YjMZxfpbhWcZJFrSMS3CDA@mail.gmail.com>
Date: Wed, 30 Aug 2023 17:23:43 +0800
From: David Gow <davidgow@...gle.com>
To: Janusz Krzysztofik <janusz.krzysztofik@...ux.intel.com>
Cc: Brendan Higgins <brendan.higgins@...ux.dev>,
linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com,
drm-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
intel-xe@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] kunit: Fix test log size limit too low for some tests
On Wed, 30 Aug 2023 at 15:55, Janusz Krzysztofik
<janusz.krzysztofik@...ux.intel.com> wrote:
>
> Now we have memory space available to a kunit test case log exposed via
> debugfs limited to 2048 bytes, while some parametrized test cases, e.g.,
> drm_framebuffer.drm_test_framebuffer_create, need more. For this reason,
> debugfs results from affected test cases get truncated silently, and
> external tools that rely on parsing of debugfs results can fail.
>
> Increase kunit test case log size limit to 4096 bytes.
>
> Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@...ux.intel.com>
> ---
There's a patch series we're hoping to take for 6.7 which allows the
log to grow to fit whatever's written into it, which should make this
patch obsolete:
https://lore.kernel.org/linux-kselftest/20230828104111.2394344-1-rf@opensource.cirrus.com/T/
Would that work for you?
-- David
> include/kunit/test.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/kunit/test.h b/include/kunit/test.h
> index d33114097d0d0..d20eb1884edfa 100644
> --- a/include/kunit/test.h
> +++ b/include/kunit/test.h
> @@ -34,7 +34,7 @@ DECLARE_STATIC_KEY_FALSE(kunit_running);
> struct kunit;
>
> /* Size of log associated with test. */
> -#define KUNIT_LOG_SIZE 2048
> +#define KUNIT_LOG_SIZE 4096
>
> /* Maximum size of parameter description string. */
> #define KUNIT_PARAM_DESC_SIZE 128
> --
> 2.41.0
>
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