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=1794707480; b=fCDeXN+ChP3hzX7JHm8bkjRHpHIrBES16SDxxnuk6l0TDwLlmOWB4FubhEjkfs7wGi7l E/XPwMxjMSWwDazdeu+DpPaeWLkmb6kAH4dWplBjYi0bYutg0uOE0vBYA54Dy5hwjzly6 NAkH9MWPvNcjd+3JyVBbxfPUJxifX3ABnV4RgQOtknWm8k1ursAwRCFeorQR2SSp2No/P j0eqAj15t/UplqlUQ68SqZsvqEQ7uboXTv4cXZhWilq+KiDL/ggWJWEn+o9+kyQ1TnSyr Ce8s9aCn8Kno8q2fVN4QgPGQLMmF0buAdYemQc9YiRUcB/5AEWZ9txHhehD8lQM+rFg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794707480; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=KHGIisqwH/Bl2cAuHSE+gjX9x1MrmovzS6BlPHWz/D0=; b=sYXyA4/FFZKp/+UUJcqkhE64awpV3sZO712BnwnWtzsfdjmHnqy89fta1jh7TXYOF4w7 4WkPWvz8B1/2Obwv9DixP1qisQnW+Iqny6iiD32uIlUT6gmnP8HFLLNDMNUfNrO5/21AH /gpJYHqMO8OOTQRKLscrBj36RIDnppla39VbakAkyhmd+kimcP2EZqZvWabIC1VcDAyez AOLa48D5W8P5YlGI57vIQksvADdwh6YAcguTiTaGcnDiXJjMtzgmINHiNxUF4vZ4lEoE4 8yE2DKUOQdr9RxIniBu6nMF8tsZe2i3cpPjTfj+VNCFfA2e4JJeu7kpnt1Iy1O32TDQ== 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=DLdxNACp; 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 4C3F5606A323 for ; Sun, 15 Nov 2026 01:51:20 +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=DLdxNACp Received: by smtp.kernel.org (Postfix) with ESMTPSA id C58AC1F000C4; Sun, 15 Nov 2026 01:51:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794707479; bh=KHGIisqwH/Bl2cAuHSE+gjX9x1MrmovzS6BlPHWz/D0=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=DLdxNACpRYPKYkzycNX3QZZheTkjv5i8A8Ls6gGI0JGIbYGMKcza5DZ6SGV/jjJ76 d9d5bv3B7liZ2WmaAjmaWwevys3fLRvvmd52etqHnsxDPGpb8T0pOTXQxF0RJ0W1Ag vM9IeQNMfBNEBnsL3HgEKNSXU+DYnozGTiEaa3cxixme3N7l0ClNpqhEtjyNcSiHe0 X9DovzSBSECPQSvwDKG8H8X4Pi292ghyqfGjwLC2qx8+pu7GVYS7fXr4AOARjm6/pU HqinJZY2fCHlFJMwPzZeOWkJ6A7C8NhyLYqpr47mk1EDx2r10176WK2LVV3QwGssj9 fNFRysWd79O+A== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v3 10/12] perf tests: Fix the Intel PT virtual LBR check Reply-To: sashiko-reviews@lists.linux.dev To: "Arnaldo Carvalho de Melo" Cc: linux-perf-users@vger.kernel.org In-Reply-To: <20261115014102.2879372-11-acme@kernel.org> References: <20261115014102.2879372-1-acme@kernel.org> <20261115014102.2879372-11-acme@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Sun, 15 Nov 2026 01:51:19 +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 record this check uses writes aux samples, and with the single data > page the other tests ask for they are lost: >=20 > Warning: Processed 29 samples and lost 100.00% >=20 > so no branches are decoded and the check fails with "Failed with virtual > lbr". Record with 4 data pages and 128 auxtrace pages: the same trace > decodes 64 branches and still fits the mlock budget. >=20 > Require the python perf module to provide session, not just to be > importable: a perf whose python bindings are not found can pick up an > unrelated module and fail with >=20 > Error processing events: module 'perf' has no attribute 'session' >=20 > instead of skipping the subtest. >=20 > Detected building perf on fedora:44 on the runner with Intel PT hardware, > where the subtest failed with "Failed with virtual lbr" in the container, > and with the python error when run as root on the same machine. >=20 > Fixes: 915d6b14dc0c ("perf test: Migrate Intel PT virtual LBR test to Pyt= hon API") > Signed-off-by: Arnaldo Carvalho de Melo Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261115014102.2879= 372-1-acme@kernel.org?part=3D10