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 784B817A30F for ; Fri, 28 Mar 2025 13:49:03 +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=1743169745; cv=none; b=rsfoyPA+kp0zOoHwzDwGRav0QIlEzeehKm/FCLGRfn3mER+KruqsIamRdvk86jAKQWWJzJsIaD48hGUq9a/LBugSrNCQFYWIlXgDIfce5W9svIPGYRDofP7qDxQYzUizbNATAZPhVieL6ehL0xkqDuMX7n9Yeu8szqodp4SBt94= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743169745; c=relaxed/simple; bh=ksFQUOP3EzZfL9D4/0O2XSC5+UR6AEx8dV1lPhH8BeA=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=jDJj0jzXEHX5fzZggtDWnMbLdi5gnzcQhxSwZNuis+1a+03t7MpOdDeUlGtMG+uQM+dA2CAGXvSGn0RkFP129lXlSoR9UaFE9tpC9G5TowzgITrcJcgnYPHbBDC4YI6In/9yjn42YcwX5LkgDKwEmQgdzlfyTHvZfeRtkqsmpj0= 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-3d43d333855so20620055ab.0 for ; Fri, 28 Mar 2025 06:49:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1743169742; x=1743774542; 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=ZccP94vSlfyk6BXUvEnclbkKMxBWU/FoFWjWqAr+xSc=; b=WmvzkfMUYFOzZsAp5fCFJUqs+spXuR7t1q+4G6sNMip9k3CfKC6V0LFihqXZAMxxwJ 9Wejt5JVIXsnkcq4sjNE/nT9Q27q/o3G1QDq3WprGGH4KgeICRZ+bFR5VwthGjpw+Xfz bfx46ELUF9EZt75k63jprZ4Y2BPWY5jvQZgq5A2yZ8JNvp8LADapMP1KDFLoXnuBaaYi 12z2U5ZWn7rAyk+5iRcKuOinxnP0XSpUslwM3xToSdzdFGTxS0pwDGQa2Go6vBNM/g1B kn2yvhZ0ZFPlY8cPDEl8PZx8c2kPC0kA1QGYeWqD5qQW/O3HTrK1OiLPVJATf5kvxsPC TsRg== X-Forwarded-Encrypted: i=1; AJvYcCW+Sj/Xs4cHqNChjyirmnlLuo5Wp/4PnP7+RWG6uyPWUHOEv7Za7OrwdMlxW9dZ4ibjz1218Q==@lists.linux.dev X-Gm-Message-State: AOJu0YwNengT3/z8Fdd44enRuNV66RYgGfS5Lj4f4SEGKP7FgFgtvVLh ixtlwf/+H784QMtesTFoPNi3AQnD4TI+cvTsMElDiQMNb01JsGBbOBjNdpAezNpiZzdP6TdT+fb sJWHLRSRg0uljxwXwYF9VbmWEsF6GMs/RD9me+CEZroSG6Gl0O7tIvN4= X-Google-Smtp-Source: AGHT+IGwRYua1iETzdd0MEmIL3HDNfodpZ6kzAALmumare+moQZbATVg3Tb/phYquDGYuvTGiVbb0t0/KM3tnAOm1426Ww8zs2hT Precedence: bulk X-Mailing-List: netfs@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1689:b0:3d4:28c0:1692 with SMTP id e9e14a558f8ab-3d5ccdc1e0bmr85604945ab.5.1743169742505; Fri, 28 Mar 2025 06:49:02 -0700 (PDT) Date: Fri, 28 Mar 2025 06:49:02 -0700 In-Reply-To: <20250328132557.GB29527@redhat.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67e6a8ce.050a0220.2f068f.0077.GAE@google.com> Subject: Re: [syzbot] [netfs?] INFO: task hung in netfs_unbuffered_write_iter From: syzbot To: asmadeus@codewreck.org, brauner@kernel.org, dhowells@redhat.com, ericvh@kernel.org, jack@suse.cz, jlayton@kernel.org, kprateek.nayak@amd.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux_oss@crudebyte.com, lucho@ionkov.net, mjguzik@gmail.com, netfs@lists.linux.dev, oleg@redhat.com, swapnil.sapkal@amd.com, syzkaller-bugs@googlegroups.com, v9fs@lists.linux.dev, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: unregister_netdevice: waiting for DEV to become free unregister_netdevice: waiting for batadv0 to become free. Usage count = 3 Tested on: commit: acb4f337 Merge tag 'm68knommu-for-v6.15' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16bab804580000 kernel config: https://syzkaller.appspot.com/x/.config?x=95c3bbe7ce8436a7 dashboard link: https://syzkaller.appspot.com/bug?extid=62262fdc0e01d99573fc compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=146b9bb0580000