From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f69.google.com (mail-oo1-f69.google.com [209.85.161.69]) (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 C93182C21D0 for ; Tue, 19 May 2026 04:32:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779165163; cv=none; b=kK/NKebnqGy5eXndZ5KC7p9JJKpnytBHer2/pNTwT6IzgozN+YUg8wUD3HqLV8Sv83SA7Mp5oe+/76tAY8v8D3bvTDl6tR+z6K1BOjlG7jKkCQb3UktWuhbLmc7CG9qugArZ+L14FhJWUKC1cvStictoRU0FNLWbXOxLIvZ0GMo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779165163; c=relaxed/simple; bh=2hM0+C6AbheUUADFemRf6hSqTSmjmjLyAvvyqvDU3vk=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=c72KmkgGmzYOt6zGtYDhjbrQwLDQgmqK1izonGfyQNDZP0tcTt2NhH6x1dhgBMmi09UJ7vWNR9C+XTgxvqbRUOC2Q2p0j1cemQASA+GBABIjX16u/yBjFl2y0WgqKfKpfP8He5iA+fqAe/pDwrymt/bEmnquxhFglwPouzCYlSQ= 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=209.85.161.69 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-f69.google.com with SMTP id 006d021491bc7-6948d83a5c0so9150269eaf.1 for ; Mon, 18 May 2026 21:32:41 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779165161; x=1779769961; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=2ufaEn7iriNfcq5DTtt2W2LDI1UcW9sAPI25a1q1zI8=; b=kFoNnilesQp6arEfomI0x3SDEv1Y1Z02zEWEztXzUBj/I/dG3l0otEHp+C63vQMJog mtac0ucjtw6jW4X9u7WJYi85+BzQnj9Xjgfcc3j81WF2gJUCWDX4Oy0hsLsu0HOhzPIV 5AhYBErMKE+raK5J9XIv1kddcSOGLwBD7h6wib08lzM0Yet/Q0EMzSVTkjAvhmf8xtuP ogRG9SCOFzr2JgcAcu0anZI4awIU716Qt9a82VRq7hIbe7h6MxPs/NtER3e3Jm8nHmsm Y17T6B77msEVYqiVvaNP4L+xYAiHKDQrkl9tCIUwbuKt+apiC0T8Avefe6l/UEug4xAM C02A== X-Forwarded-Encrypted: i=1; AFNElJ9jOIjEHKFQrwJL2ARlN7pO83B5BQ0sUxKkUaJvS6/tgAiHur7eiNEZkTKCa9pnW9wYZvPiFaLco0MTMoY=@vger.kernel.org X-Gm-Message-State: AOJu0YxoQ4XnToagXBldXTX/U2kzyPIli7ciQST28z3xrR6fTM0IeMXr omJnt8E6cl2GXXp8SDPFrp+xGtdC9kTyF+wWcKsM9K8Cdu3a9t8aJKHN2CtEFIQ8lmrbzKXgBjQ JbyS3AP2lj6I0JnDOV/eKYGmY8on8TDqZAFwSqKPwcWyrRZ0x2DKMzQHY/DY= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a4a:ee07:0:b0:694:914f:c18f with SMTP id 006d021491bc7-69c94294299mr10715226eaf.3.1779165160893; Mon, 18 May 2026 21:32:40 -0700 (PDT) Date: Mon, 18 May 2026 21:32:40 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a0be7e8.a70a0220.202581.0009.GAE@google.com> Subject: [syzbot] Monthly perf report (May 2026) From: syzbot To: acme@kernel.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mingo@redhat.com, namhyung@kernel.org, peterz@infradead.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello perf maintainers/developers, This is a 31-day syzbot report for the perf subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/perf During the period, 0 new issues were detected and 0 were fixed. In total, 6 issues are still open and 27 have already been fixed. Some of the still happening issues: Ref Crashes Repro Title <1> 11 Yes possible deadlock in refcount_dec_and_mutex_lock (2) https://syzkaller.appspot.com/bug?extid=196a82fd904572696b3c <2> 11473 Yes WARNING: suspicious RCU usage in get_callchain_entry https://syzkaller.appspot.com/bug?extid=72a43cdb78469f7fbad1 <3> 11 No KCSAN: data-race in __perf_event_overflow / __perf_event_set_bpf_prog https://syzkaller.appspot.com/bug?extid=2a077cb788749964cf68 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. To disable reminders for individual bugs, reply with the following command: #syz set no-reminders To change bug's subsystems, reply with: #syz set subsystems: new-subsystem You may send multiple commands in a single email message.