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SubjectRe: Linux 6.8-rc6
From
On 2/26/24 23:41, Geert Uytterhoeven wrote:
> Hi Günter,
>
> CC Kees
>
> On Mon, Feb 26, 2024 at 6:52 PM Guenter Roeck <linux@roeck-us.net> wrote:
>> stackinit
>> ---------
>>
>> Seen with m68k:q800 emulation.
>>
>> # test_char_array_zero: ASSERTION FAILED at lib/stackinit_kunit.c:333
>> Expected stackinit_range_contains(fill_start, fill_size, target_start, target_size) to be true, but is false
>> stack fill missed target!? (fill 16 wide, target offset by -12)
>>
>> # test_char_array_none: ASSERTION FAILED at lib/stackinit_kunit.c:343
>> Expected stackinit_range_contains(fill_start, fill_size, target_start, target_size) to be true, but is false
>> stack fill missed target!? (fill 16 wide, target offset by -12)
>>
>> Report:
>> https://lore.kernel.org/lkml/a0d10d50-2720-4ecd-a2c6-c2c5e5aeee65@roeck-us.net/
>
> I don't think these have ever succeeded before, see
> https://lore.kernel.org/all/CAMuHMdX_g1tbiUL9PUQdqaegrEzCNN3GtbSvSBFYAL4TzvstFg@mail.gmail.com
>
>> I suspect this may be caused by the test assuming that stack growth is
>> downward, but I don't really understand the test well enough to be sure.
>> I'll disable this set of tests for m68k going forward, so I am not going
>> to report the problem again in the future.
>
> On m68k, the stack does grow downward.

Sorry, I meant to say upward, but apparently I was wrong.

> AFAIK only parisc has a stack that grows upward.
>
.. and the tests work there, so that isn't the problem.

As mentioned, I stopped running those tests on m68k.

Thanks,
Guenter


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