From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C1BE2231C91; Tue, 25 Aug 2026 22:09:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787695761; cv=none; b=tM8ARo98S96L2FogCUCoKJU891ox6zg7kOsMQC6lEFReF/ahiWlhdO+cwb4hsvHBQeZ8XjY7BqcNLVNDfTHjA5pJnpJ1n5PFaq8pMWAUzClAmjSo1fO+ifgwM/MuUlQRgFuLlclYkh6QAmiIiTlWnO08MrCp4gPKv9nGjgy9PIE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787695761; c=relaxed/simple; bh=KIUnw8rnY0XVxoLq1hmY8srQ4m723IykO0zotJmInZc=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=c3FiuAuKOibLKURnKbNIusRSp/jY0kZrOtjavZSUAzuGYZhIRT2v/61V9nk62fBMvxe7EcTIAaMTwFO2Sm1GnuptFKxWGz8OuqSJ9T+o2tbY7b/DSFegykLRDwI01bWjDKgMm0kh8QJBrX20bDxKwylKFFYlWbbaIb+XrokdTKA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GnA7TxQ2; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GnA7TxQ2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9CBB61F000E9; Tue, 25 Aug 2026 22:09:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787695760; bh=6c0zJgkl9EwDaCotrqn+qbGYtv9Z9zIIP+Eq/7Fsr4E=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=GnA7TxQ2vO6Kpf48wErLV12O5KZxmOv2KzsqkB4HrYU6LT9N7P5s2Rnn9dgcInsWg XlICXO71suN/QsJljQT7fETExlFwzmvj3KPvr49+o4pES8viN5Lq4HQFPXwd4HbPcq jCQR3Pf/XGX4E36TTVtpPp6iM6Z1YSxeczyjPYrYL2ILE/ukRA/kHDicWsG9gMDrW0 V0/GzgSj4FxILPAEIXOeyRsigcFjkQAJ60WLopMyCWlZA1aqzj3NijGvv/aBEu2X9A CXL+Qn+sFkM588xUgqN/1I6FmYusEWKvFNGsiKSQlJ0wiGfY17QLLpl7Ro7ZQ8hHsd bx7AA6eoF0yRA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 939BF39253DF; Tue, 25 Aug 2026 22:08:28 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH bpf v2 1/2] libbpf: Fix usdt attach failure when nop10 crosses page boundary From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178769570714.4034253.13134837502022384543.git-patchwork-notify@kernel.org> Date: Tue, 25 Aug 2026 22:08:27 +0000 References: <20260825150444.31603-1-jiayuan.chen@linux.dev> In-Reply-To: <20260825150444.31603-1-jiayuan.chen@linux.dev> To: Jiayuan Chen Cc: bpf@vger.kernel.org, jolsa@kernel.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, eddyz87@gmail.com, memxor@gmail.com, martin.lau@linux.dev, song@kernel.org, yonghong.song@linux.dev, emil@etsalapatis.com, ihor.solodrai@linux.dev, shuah@kernel.org, jakub@cloudflare.com, mingo@kernel.org, phoenix500526@163.com, peterz@infradead.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Hello: This series was applied to bpf/bpf-next.git (master) by Andrii Nakryiko : On Tue, 25 Aug 2026 23:04:33 +0800 you wrote: > The kernel refuses to attach to a nop10 that crosses a page boundary, > since it can't be atomically rewritten: > > /* can_optimize(), arch/x86/kernel/uprobes.c */ > /* We can't do cross page atomic writes yet. */ > return PAGE_SIZE - (vaddr & ~PAGE_MASK) >= OPT_INSN_SIZE; > > [...] Here is the summary with links: - [bpf,v2,1/2] libbpf: Fix usdt attach failure when nop10 crosses page boundary https://git.kernel.org/bpf/bpf-next/c/8b94878b2572 - [bpf,v2,2/2] selftests/bpf: Add test for usdt probe with page-crossing nop10 https://git.kernel.org/bpf/bpf-next/c/1555de33018f You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html