From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 28F1929A312 for ; Wed, 28 Jan 2026 04:50:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769575804; cv=none; b=PxpztY23xSqgDREjg5I8M2V7CYcJChBSBipx+4mZcgFrNNXjxs7F2531Vz0AD41O+gmhPDJHI3pMlecRIIcDwkkmxfok6gqpdF7rtRv3M1d2uc3825te2nIgehuLhF1s9UpWS6iY8sWLqbihryQeskQqqjWq3df2Gv8u/Pekjhg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769575804; c=relaxed/simple; bh=LjW6K2NGCL6j1mCxE3rLTN6SSayrAQcXGDlGaIHgT/8=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=kh8EvcMMFCvo4Gao3zUTS84nEtGrhZoD97gqk93gVp1DHL7K+MvyBo67H+yjz0KQg2Gogns/bZy6VTEboPhK8CSz1p5MrRbMXCavvesbMtzfI2cznr0oFMQJbp4tDQXgGNDqGupC6pGMVxuCmlKXh85dP9fLiozoL3/qj/0S9M8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f72.google.com with SMTP id 006d021491bc7-662c9283415so20217422eaf.1 for ; Tue, 27 Jan 2026 20:50:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769575802; x=1770180602; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=w89rCqd6Qvpdu1aZykFw+h/fa2z0CocuT9T82YXpSLQ=; b=JOwmuss+bOnbKmvq7JqrqattYXMlmXJ5+hrjLxM+yERFGgd04b0WFBVMMM/qVFhsv5 RYTW+/pSnQi/geB3+Yvd3zp/ayceqN9ILlqxSrnV3qLIsuMHJ6fYv9iokwG/Dh/u6bW3 BrbH4wN4e4IEDHVEceT5JKyKrd6uJ1bB/hP3XN/B/Y8wnwF/HccgxeYnPvJUNJcxjRN6 9gfMQrXFr598jse/mqaOAzNHWItKtOgOniCuJMM4BcvmR6fOCih3Y0EbRs/hJlVOiqF/ IOcq0kbQOZGA6IW2BXhLqDqY4b5pD8OXn0ru3vgwWqc8xN+H4Q66LmsnmeOuY29GpeZJ jcdg== X-Forwarded-Encrypted: i=1; AJvYcCX/oMB3ZrmMzFrYptWZdodQRta+HUR1cGwriZSUd2imo25wwvVV363wdzHD1BRHHJERtVfhbekLUWVWnnePZ6EF@vger.kernel.org X-Gm-Message-State: AOJu0Yypai7AGljiSQJr8pkHJFnzIAbFf6jmOf0PHEzg2CxzGdugCGX7 c2V3tt7fctEQ0JuGnDqgDUlyAy1ZLzYs27raiaZW6fqE93Q/xb5CD0mENyTLtEEchWtB4sMVKH8 nO5ePGqknAVRreNzcawKfS3e1sdBBLgIAA4vrfwiLrrdrzE4JeNcbQ+v+wKA= Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:168c:b0:65f:6601:b362 with SMTP id 006d021491bc7-662f203d5a2mr2595263eaf.19.1769575802165; Tue, 27 Jan 2026 20:50:02 -0800 (PST) Date: Tue, 27 Jan 2026 20:50:02 -0800 In-Reply-To: <20260128035508.1840613-1-wangqing7171@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6979957a.050a0220.c9109.0035.GAE@google.com> Subject: Re: [syzbot] [perf?] WARNING: suspicious RCU usage in get_callchain_entry From: syzbot To: acme@kernel.org, adrian.hunter@intel.com, alexander.shishkin@linux.intel.com, irogers@google.com, jolsa@kernel.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mark.rutland@arm.com, mingo@redhat.com, namhyung@kernel.org, peterz@infradead.org, syzkaller-bugs@googlegroups.com, wangqing7171@gmail.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+72a43cdb78469f7fbad1@syzkaller.appspotmail.com Tested-by: syzbot+72a43cdb78469f7fbad1@syzkaller.appspotmail.com Tested on: commit: 1f97d9dc Merge tag 'vfio-v6.19-rc8' of https://github... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=170ba6ef980000 kernel config: https://syzkaller.appspot.com/x/.config?x=151a39927f1e10b4 dashboard link: https://syzkaller.appspot.com/bug?extid=72a43cdb78469f7fbad1 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=13b7718a580000 Note: testing is done by a robot and is best-effort only.