From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 CAAE71AA791 for ; Thu, 2 Jan 2025 12:15:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735820105; cv=none; b=tGSpQwifqML6TS2vG4t3FUIhBbGgbSLtH0vYcuoO6MDK/f62N0XhtzX6B2RaCChnj1PQfvTN06HeG4WXjWsUKAdS14pddTvvTSj374Gb7Vht8wCxM8acBvK/B1TfmPqNdijGEZJ/H1mAGEwDt6Fth3M9dxEZRq0wBtk+R+ez5UM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735820105; c=relaxed/simple; bh=C54pwfuEx7CSMPHpbYxBPrjO+xocElt5qFrT0JyWZdM=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=MCwqRmZ12GT7dPluLqXhD/MRkn2GEP+HIGAm1FiRuULXxv32wCEa+1D5c6/DJt3pzSYLHCvAXeFZ8MrkP6y5kdpyzE5dpBfeeTHO6+HwyfIbMSlALsJZxFcpiKdXHuG/CnKHG/lgZQRANl1Czm4/7ABtZV8WOz3NuSkDQ9IjSBQ= 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=209.85.166.199 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-il1-f199.google.com with SMTP id e9e14a558f8ab-3a812f562bbso241522215ab.1 for ; Thu, 02 Jan 2025 04:15:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735820103; x=1736424903; h=content-transfer-encoding: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=F5BADL3FQIi6j8hDt22luWH9Cz2dG2Si6xImp0h98Uo=; b=N3Th9ohTr+M0fS6N1PegI+BjTJcwRkImuWVmbLXFlx/q4RtnlW4Mz/p/I0vh5Ro9c9 uhyzFNWXqlcj1qRRB3eRvZTxasG48HV9cU5EaGhylh8h1h78L/BIsVSDPXjFlMELyWIJ k/32J3UhIrmceKfEl0aP9dHh4Ot6HZ2JwPYSIp/lk8kQXJK9VcvkcVdM/m8Nikuq/Y63 Ny8TB75zYmOomfJ1jpmkWnxxfbSNrNGc0HH5KpBp6aHD4z9EOnO6ltuEZSPYGd2nz8zw J2oNIgOelkqoIXjQDD+hAD4kL/xfdCr74QGRHETrnQM5VJD41z0oAZOWroedsDpgcer2 rAHw== X-Forwarded-Encrypted: i=1; AJvYcCXYZZ6hveREm1levA5pgSb1rcSQ4pIktbBODkuHN0awVQYkNjE/J5nj966vKKEBovecXyPE1N8SkQ==@vger.kernel.org X-Gm-Message-State: AOJu0Ywp8Kw6hqQRzHTT/tZpbQ44sa7vtE8TMqHaXxlYFNOjt0LXsJ/z pPDRR+O7HtJuyctjozuZuxxmPoPD8rcwWnZomoOSXbEpNBtqbQdCsVFr8/RJItMIIBQ23ld3So8 c9S8fZd7541NSYjAoGQCFHcxrh01v021CalZRPuPYrQi+DAQl7vtHC0U= X-Google-Smtp-Source: AGHT+IEwWMEMVl1DAt3Rpw7MNelzWofqL7AXxOU2IUua+0OLmcJWpYccYw8WduDUeKpM4YUw+Zdd8VE5w0y929gRrqstq1C9qOgQ Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:16c8:b0:3a7:d84c:f2b0 with SMTP id e9e14a558f8ab-3c2d277f25cmr459566485ab.8.1735820102866; Thu, 02 Jan 2025 04:15:02 -0800 (PST) Date: Thu, 02 Jan 2025 04:15:02 -0800 In-Reply-To: <0000000000006d4e02061b6cbf22@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67768346.050a0220.3a8527.0039.GAE@google.com> Subject: Re: [syzbot] [kernel] WARNING: locking bug in sched_core_balance From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, bp@alien8.de, daniel.vetter@ffwll.ch, dave.hansen@linux.intel.com, hpa@zytor.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, mairacanal@riseup.net, mcanal@igalia.com, mingo@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable syzbot has bisected this issue to: commit 7908632f2927b65f7486ae6b67c24071666ba43f Author: Ma=C3=ADra Canal Date: Thu Sep 14 10:19:02 2023 +0000 Revert "drm/vkms: Fix race-condition between the hrtimer and the atomic= commit" bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D111018b05800= 00 start commit: ccb98ccef0e5 Merge tag 'platform-drivers-x86-v6.13-4' of g.= . git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=3D131018b05800= 00 console output: https://syzkaller.appspot.com/x/log.txt?x=3D151018b0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=3D1c541fa8af5c9cc= 7 dashboard link: https://syzkaller.appspot.com/bug?extid=3D14641d8d78cc029ad= d8a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=3D127f381858000= 0 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=3D172306c4580000 Reported-by: syzbot+14641d8d78cc029add8a@syzkaller.appspotmail.com Fixes: 7908632f2927 ("Revert "drm/vkms: Fix race-condition between the hrti= mer and the atomic commit"") For information about bisection process see: https://goo.gl/tpsmEJ#bisectio= n