From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793950904; b=b2rRjKC1IXqZOru/D1FpuPWRkb19W12g98Yc6bsivf5bR7+9Cd6eSDfoXK6a4B1vPb4+ nIrGhoNreiSoUDoFPwTsKgKdbF1gFDPNBlBcEH6Q3tD/p1KY/tijp+AhKvYVpLVk+xmBK HQw3JuTai6m8QG3F61x/0IpH0WGi9BwBQHiIIQLFFpAYTqh0W5C6PmHoGTLqN3sZ0LvNP T4UjTfmI/an7ur3dFtx0pYi0WagNjGKh7OjChxr0/k9PrOXXPVTsNevYWw42GmTZz8hwm 6aahAj02BYfDegvftKkKLaKo+44bp09kJL0x9T8Bo5NdvpAImYVD51aoRoziKXlpuXg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793950904; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=yxANCzH2/FGTT4nw7oI+TQmRg2KUOh5YfrUVx1MekzU=; b=IAJRmaFWMJgwQyU6Qb0A6+zAxOVx6L8gnWA8MYIRPdW6Ed+tA8GhSgyXvSMnEhjnlhpG SCkf8v+YmQQviVNfbsOmidScVJzFhlpWimMqqiUkOTOvVB8zu0dm5FQi4HiM/+JeBRgba zkweyQo+aTM+7bnUkSFzlUvPbtq90l9q/2HNThE/sGtsTvjuIfX4LFDdPTPdwfVwi31P1 tHCs2XZD/vD6xEGsOl3IxaVklYrEgwLWCm/zGG5IZoXqyIyJJOyhN7GVJw6vqlhjvDeO4 BlR90nFrNJqJEVSQ9wRjFrMBPzxO6dh1P1fWhjTcK8EXtGzpEX1dtPioelms+h71FjQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=iQkv6k43; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C3E1B606A326 for ; Fri, 6 Nov 2026 07:41:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=iQkv6k43 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6F3EA1F008A1; Fri, 6 Nov 2026 07:41:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793950903; bh=yxANCzH2/FGTT4nw7oI+TQmRg2KUOh5YfrUVx1MekzU=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=iQkv6k43ZuERtp1VUJPwg7kmdTi7QbnsnP9Vb8ZM8c001AXsEZNnzQ3mwFkBkwjLi HdBTZB/wmQwvbsEphzq0afG6jTLyM0yJIecEfoZrlAprl9hQ7lyqbKPdBrwwpIaFSV 2RAh2hB8o14y8/Gu3iqIs+tnQYxytJ8R/A5w+iu9+jcTmzmBOOvpunJn822WwoGtx6 51zRNWKGFuSpta1jzBNNOmRoDwTkHhaTCcwHqVHBrYSCxRDSwzsw718aavqoPmXJXn H3tO3cZcecMgTZFWsbe6Hp7/kIr+OBG76gET3Ff1UImPVUFUWqyKWpRl5n4ue/9RJl 64zeg/nKrEaJg== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH 1/2] perf tests: Skip zero sample IP in object-code reading test Reply-To: sashiko-reviews@lists.linux.dev To: "Dapeng Mi" Cc: linux-perf-users@vger.kernel.org In-Reply-To: <20261106073018.903126-1-dapeng1.mi@linux.intel.com> References: <20261106073018.903126-1-dapeng1.mi@linux.intel.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Fri, 06 Nov 2026 07:41:43 +0000 X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > The kernel may clear the sample IP to 0 when a user-space address is > expected but a kernel address is sampled due to hardware skid. A zero > sample IP causes the object-code reading test to fail incorrectly. >=20 > Skip zero sample IP values in the object-code reading test to avoid > false-positive failures. >=20 > Reported-by: kernel test robot > Closes: https://lore.kernel.org/oe-lkp/202609151503.cb02f753-lkp@intel.com > Fixes: 166f10836a65 ("perf/core: Fix kernel register info leak via hardwa= re skid") > Signed-off-by: Dapeng Mi Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261106073018.9031= 26-1-dapeng1.mi@linux.intel.com?part=3D1