From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 84FFC1BBBD8 for ; Thu, 31 Oct 2024 16:41:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730392865; cv=none; b=JZqezJiApCLRsVRZ0Cblz3jxiKrmrzaY5jSRIdVgIMl36kPPphXxMqIgLqZvM9xJsmwxofE+jI7RsYlZ8eSYt2xVpB6c0fUGrklmsv1y7Xm1dZW3L/pF53ZHe+ftHcelb2Lq1DkCnOVokMDBh+Dx3F5xlqHU/o7TSFZhduv4SHk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730392865; c=relaxed/simple; bh=+T8lN1gLzbQbrwa76oDCjzsFDN/dUBtdXM0uxc+LlPs=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=ROZTGbhtvgZTHAe3ckzQgZKb0HM6LqmuRVhrPA8EM6y6CinwB5/BPuZpk/KngVefv+7nq3MyM8UmQXiFi/hY9oiPcjzDrpvMi9H6RK3vaaSuEre8bqYWWt8U242VL4C/vSJpQ/XnqjfR3Bs/c0oRRfBxCTGifCeLORAjfgL1EK4= 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=209.85.166.200 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-f200.google.com with SMTP id e9e14a558f8ab-3a3bf44b0f5so9153455ab.0 for ; Thu, 31 Oct 2024 09:41:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730392863; x=1730997663; 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=S5kf59B9cpnpRcxM0Wk+olT2viW8x/tZqSOwO5xKyJ8=; b=tEx2KwGbFxZ+26tNjLwG+0h2oKd/gHu4uDSMcvSWczdyLwloyKC6KVcfz01Z3swPMx 72h/dcSsqBKZvVFE12QaDGtWEVbe4lPLvUWfD/yT/UmjTKIhJybg7f5b5IMG1zcWIepw rLmLNQyYHWLO+vTl80Jwd3R6S8xmqovF/03ww/ibQ9I4WGygi57/veU7MZP8MyNKCve+ 4t1FZ4a5emEKJrlBDckYVW8NCO5ssdSXm9PYX4f2kCnClA43nXfv9IOnTna7PVNkZJa2 0wtvt4A1yuu+Il0RAVuTn2hiFhRDd8BkVpHFfc0DMoNG+sYZkTc2RUJnmjhBWc86IV0d +Llw== X-Forwarded-Encrypted: i=1; AJvYcCUvAmTEZRevFRD+9mXYmmzJn7C87HJ3aEjHQ4miuryJeKMDepl5X3OCVK7N+tDtGye68CCW8s7cu+tXw60=@vger.kernel.org X-Gm-Message-State: AOJu0YxpKrNLbtaEKzTCwqgq7ri7d2h9G4WoHyPznsdOzaG9FvfmeISX AabzlJddTx2V17Y2Av4MGv83krsAY77Wkd+gcy36gOYEBV2DMnLzs9kOvvOF5KLQZQr6brwQiq5 3HLwKwb5JR1Xn5kUdK8akb7HHlK8u2Ql/fY+Fv882kT8ZTZqr36nBnhE= X-Google-Smtp-Source: AGHT+IF7vDX78RdpCp96aKe/0IDWhbKJMsM8GMsk5dPvk8HvTRPiy3lCOgNmo7/5JinNDCI88x1azOXCsGSpofcokwYdSk67hVPQ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:160b:b0:3a4:d94f:5b53 with SMTP id e9e14a558f8ab-3a6b0384ea3mr6044505ab.19.1730392862708; Thu, 31 Oct 2024 09:41:02 -0700 (PDT) Date: Thu, 31 Oct 2024 09:41:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6723b31e.050a0220.35b515.0165.GAE@google.com> Subject: Re: [syzbot] [mm?] [input?] [usb?] INFO: rcu detected stall in brk (2) From: syzbot To: akpm@linux-foundation.org, jannh@google.com, liam.howlett@oracle.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-usb@vger.kernel.org, lorenzo.stoakes@oracle.com, syzkaller-bugs@googlegroups.com, vbabka@suse.cz 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+7402e6c8042635c93ead@syzkaller.appspotmail.com Tested-by: syzbot+7402e6c8042635c93ead@syzkaller.appspotmail.com Tested on: commit: cffcc47b mm/mlock: set the correct prev on failure git tree: git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git/ mm-hotfixes-unstable console output: https://syzkaller.appspot.com/x/log.txt?x=1304a630580000 kernel config: https://syzkaller.appspot.com/x/.config?x=6648774f7c39d413 dashboard link: https://syzkaller.appspot.com/bug?extid=7402e6c8042635c93ead compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.