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[RFC] kunit: Fix test log size limit too low for some tests

Message ID 20230830075419.26484-2-janusz.krzysztofik@linux.intel.com (mailing list archive)
State New
Delegated to: Brendan Higgins
Headers show
Series [RFC] kunit: Fix test log size limit too low for some tests | expand

Commit Message

Janusz Krzysztofik Aug. 30, 2023, 7:54 a.m. UTC
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@linux.intel.com>
---
 include/kunit/test.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

David Gow Aug. 30, 2023, 9:23 a.m. UTC | #1
On Wed, 30 Aug 2023 at 15:55, Janusz Krzysztofik
<janusz.krzysztofik@linux.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@linux.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
>
diff mbox series

Patch

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