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=1794185748; b=xwn1b0hNwxkMEFaXQ6UcUiBokrBnXoINgUlVWWcvaiKhUEYDYaVwQKR0VPo2e7wlM7dd 4qVVip2KKk4yWm1a3+Q6X/qdePHaylXARuTF/dg5eG7NUh1r2Ds8R9EkbedmzPH/VsGGV jQXcD0iT2yMKvqD2picp2O/JuO2KZ2EHhHNPehO75QKpnF6JVJQZ6FowGNI+fb35TbH2H Y02dlyN1jaA91dJnBUDtiFOB4LNDSH1D0YH3Abfx27JARgdIX/LwqA8kp9cUEc3H0fumq NBSL3QOUjrIS9LHi8HS2lmXRXLBbIE8pHoQaokPSjd93aQ2VjL1a1Q2V5QcpObgq2tw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794185748; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=hs5Vukzpfby/J+qLcEHGmxUx0LMHQGU3qflzm/Kqd+Q=; b=t157DLnYxHPzc0tvuglsIPoAGNYAuKWhf/G1VDTjDxUW9rieAm0wAKXc7kYfW3KBEcDV RtcBC0cdscxYE32vVgdYJUfKMg0no5HOxvmVSwmIzAHzrYVGqhO9jYSuBR+smR8IhDOJy EFyYCL/0yUnaUQF0fS1K433XAIXzRz1VnVxDsvQNiuwRGhI/oP+9YuVa1NL3O6J3Sdd08 5RjYM/J+lBBccHeBoZ1l5V+ZVI78iQQ+ZuKbcFRntsPdilkHW4oOA7VOFkkD6nOCN9gQ5 uK1CUnhmTkLMgMJPmx0DHMrfQD4XEDo1vv2YJhVqKWRYjOoMHzP1MJHB5ZYQjuvPCwA== 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="ipvG/M9V"; 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 20A6C606A323 for ; Mon, 9 Nov 2026 00:55:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=ipvG/M9V Received: by smtp.kernel.org (Postfix) with ESMTPSA id 825741F008A3; Mon, 9 Nov 2026 00:55:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794185747; bh=hs5Vukzpfby/J+qLcEHGmxUx0LMHQGU3qflzm/Kqd+Q=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=ipvG/M9ViraLrCLcDs/G6NQEGN7TwXcPWNR2zEQXeniU0bojDYoOC+7dCNL9dwPJS M5wPU1R7+CNyNtJhlLBjvy6ODEkRxLu+VLHJaNcAU5Txwgwc5aPGMFpj0yKjz2ZvVo Lc5RoanDIzvAbRUD3JJ9E4LzWAx/wWVXON1vIppVxZ6bppUNR94xVcFeaMKzxKwSFP +ePMqP2U9pK7JDTGNDlen7Q7B0vXDQkc60U5jWTs/j8uHcXUS/BqnLgll8gem3qTIt FNjGyMuhGWOEDv4Tll5B7G/n11/pBWK79F9AGCLITwdGZDXjkKq/I0UOYl1gDRyvQh uIvUkTBYwqo9Q== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [Patch v2 1/5] 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: <20261109004402.1403713-2-dapeng1.mi@linux.intel.com> References: <20261109004402.1403713-1-dapeng1.mi@linux.intel.com> <20261109004402.1403713-2-dapeng1.mi@linux.intel.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 09 Nov 2026 00:55:47 +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/20261109004402.1403= 713-1-dapeng1.mi@linux.intel.com?part=3D1