From: "Jason A. Donenfeld" <Jason@zx2c4.com>
To: christophe.leroy@csgroup.eu, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org, skhan@linuxfoundation.org
Cc: kernel test robot <oliver.sang@intel.com>
Subject: Re: [PATCH] selftests: vDSO: align stack for O2-optimized memcpy
Date: Fri, 27 Sep 2024 19:24:05 +0200 [thread overview]
Message-ID: <ZvbqNZz547IGq7vy@zx2c4.com> (raw)
In-Reply-To: <20240924115001.916112-1-Jason@zx2c4.com>
Hi Shuah,
On Tue, Sep 24, 2024 at 01:47:23PM +0200, Jason A. Donenfeld wrote:
> When switching on -O2, gcc generates SSE2 instructions that assume a
> 16-byte aligned stack, which the standalone test's start point wasn't
> aligning. Fix this with the usual alignnent sequence.
>
> Fixes: ecb8bd70d51 ("selftests: vDSO: build tests with O2 optimization")
> Reported-by: kernel test robot <oliver.sang@intel.com>
> Closes: https://lore.kernel.org/oe-lkp/202409241558.98e13f6f-oliver.sang@intel.com
> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Just FYI, I'm expecting that this is a patch you take through your tree
for 6.12, and hopefully before rc1, as automated testing is failing.
Jason
next prev parent reply other threads:[~2024-09-27 17:24 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-24 8:08 [linus:master] [selftests] ecb8bd70d5: kernel-selftests.vDSO.vdso_standalone_test_x86.fail kernel test robot
2024-09-24 11:47 ` [PATCH] selftests: vDSO: align stack for O2-optimized memcpy Jason A. Donenfeld
2024-09-27 17:24 ` Jason A. Donenfeld [this message]
2024-09-27 18:19 ` Shuah Khan
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