2024-03-01 19:42:20

by Mickaël Salaün

[permalink] [raw]
Subject: [PATCH v2 1/7] kunit: Handle thread creation error

Previously, if a thread creation failed (e.g. -ENOMEM), the function was
called (kunit_catch_run_case or kunit_catch_run_case_cleanup) without
marking the test as failed. Instead, fill try_result with the error
code returned by kthread_run(), which will mark the test as failed and
print "internal error occurred...".

Cc: Brendan Higgins <[email protected]>
Cc: David Gow <[email protected]>
Cc: Rae Moar <[email protected]>
Cc: Shuah Khan <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Signed-off-by: Mickaël Salaün <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
---

Changes since v1:
* Added Kees's Reviewed-by.
---
lib/kunit/try-catch.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/lib/kunit/try-catch.c b/lib/kunit/try-catch.c
index f7825991d576..a5cb2ef70a25 100644
--- a/lib/kunit/try-catch.c
+++ b/lib/kunit/try-catch.c
@@ -69,6 +69,7 @@ void kunit_try_catch_run(struct kunit_try_catch *try_catch, void *context)
try_catch,
"kunit_try_catch_thread");
if (IS_ERR(task_struct)) {
+ try_catch->try_result = PTR_ERR(task_struct);
try_catch->catch(try_catch->context);
return;
}
--
2.44.0



2024-03-05 20:58:01

by Rae Moar

[permalink] [raw]
Subject: Re: [PATCH v2 1/7] kunit: Handle thread creation error

On Fri, Mar 1, 2024 at 2:40 PM Mickaël Salaün <[email protected]> wrote:
>
> Previously, if a thread creation failed (e.g. -ENOMEM), the function was
> called (kunit_catch_run_case or kunit_catch_run_case_cleanup) without
> marking the test as failed. Instead, fill try_result with the error
> code returned by kthread_run(), which will mark the test as failed and
> print "internal error occurred...".

Hello!

I have tested this and this fix looks good to me. Thanks!
-Rae

Reviewed-by: Rae Moar <[email protected]>


>
> Cc: Brendan Higgins <[email protected]>
> Cc: David Gow <[email protected]>
> Cc: Rae Moar <[email protected]>
> Cc: Shuah Khan <[email protected]>
> Reviewed-by: Kees Cook <[email protected]>
> Signed-off-by: Mickaël Salaün <[email protected]>
> Link: https://lore.kernel.org/r/[email protected]
> ---
>
> Changes since v1:
> * Added Kees's Reviewed-by.
> ---
> lib/kunit/try-catch.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/lib/kunit/try-catch.c b/lib/kunit/try-catch.c
> index f7825991d576..a5cb2ef70a25 100644
> --- a/lib/kunit/try-catch.c
> +++ b/lib/kunit/try-catch.c
> @@ -69,6 +69,7 @@ void kunit_try_catch_run(struct kunit_try_catch *try_catch, void *context)
> try_catch,
> "kunit_try_catch_thread");
> if (IS_ERR(task_struct)) {
> + try_catch->try_result = PTR_ERR(task_struct);
> try_catch->catch(try_catch->context);
> return;
> }
> --
> 2.44.0
>

2024-03-12 04:53:42

by David Gow

[permalink] [raw]
Subject: Re: [PATCH v2 1/7] kunit: Handle thread creation error

On Sat, 2 Mar 2024 at 03:40, Mickaël Salaün <[email protected]> wrote:
>
> Previously, if a thread creation failed (e.g. -ENOMEM), the function was
> called (kunit_catch_run_case or kunit_catch_run_case_cleanup) without
> marking the test as failed. Instead, fill try_result with the error
> code returned by kthread_run(), which will mark the test as failed and
> print "internal error occurred...".
>
> Cc: Brendan Higgins <[email protected]>
> Cc: David Gow <[email protected]>
> Cc: Rae Moar <[email protected]>
> Cc: Shuah Khan <[email protected]>
> Reviewed-by: Kees Cook <[email protected]>
> Signed-off-by: Mickaël Salaün <[email protected]>
> Link: https://lore.kernel.org/r/[email protected]
> ---
>
> Changes since v1:
> * Added Kees's Reviewed-by.
> ---

Thanks for catching this!

Reviewed-by: David Gow <[email protected]>

Thanks,
-- David


-- David
> lib/kunit/try-catch.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/lib/kunit/try-catch.c b/lib/kunit/try-catch.c
> index f7825991d576..a5cb2ef70a25 100644
> --- a/lib/kunit/try-catch.c
> +++ b/lib/kunit/try-catch.c
> @@ -69,6 +69,7 @@ void kunit_try_catch_run(struct kunit_try_catch *try_catch, void *context)
> try_catch,
> "kunit_try_catch_thread");
> if (IS_ERR(task_struct)) {
> + try_catch->try_result = PTR_ERR(task_struct);
> try_catch->catch(try_catch->context);
> return;
> }
> --
> 2.44.0
>


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