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 96D0A2857EB for ; Thu, 10 Apr 2025 13:22:04 +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=1744291326; cv=none; b=hhm6HOShWDaJbi/azqOHqFPgz/hPYWj7pwWhq2zqow6P6YYFR97EVwIq1fvt8H5jRaGBbsbGVE5jLeoLn2mtGVulsw5zu4WhbxmyZOzvEIw6ZIsxysPMUjLm1ltn81ECNOXBXBDtrjvdj0il/Yy+ciB4w5DPjbgD0c+a+5j26tk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744291326; c=relaxed/simple; bh=TxpinXIVox58balXQ9mjFYVf5poJ3SM1tyO588NrTqc=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=dKg75qj2x970ww5w+hgAgjl19+0CAyHBmYTu+w2xm6A4O5ggcmb/N4x1rJoAn8xn54zLTFFs3W4CctzuKB/1FGjhp5ZJMAwtHVM5gjjchdL93nZVOaMNwUuxgkNRkJGRD3oodPKAfQkN8kXQkzOPG9YBE3QJtMycI6BMRZ6q7hA= 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-3d443811f04so7346135ab.1 for ; Thu, 10 Apr 2025 06:22:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744291323; x=1744896123; 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=b72eM9eMZlRKFXr+o0KTa33dW1ftqcPwLSRLp9ZZfV0=; b=swXxDwHP64fJLGz3/S37A4nrMKd1jKLdU+cm3zjRzccHGP9xSeOlb+S7rTwf2ELA/J ImYlZ4k0HtTY183MKJb0Svm4rHdW5lMnv5PmxAhlh0k3G8wm8WEh1WCXiClqFZoO0qtH 8JJzYMa61CJcfZTrDW+Mw2Y0+9o0g6vfpEQg6xdSPuIJB20j50mLCj7XIrw3zGpNVmRm ipc2lVSGm7I0x9xKwhawsbSKPvYcVgNOTkgu+n+3MUYKLlt+vV/UTIUX48qNWEG3Kw5p KP+O43Svm96OElvT3U5oH9UK2dNLxAtSTOWD7c1N5Doz7xhbUqilQ+R6tT6pJKZauTrU 6geg== X-Forwarded-Encrypted: i=1; AJvYcCUFO14KOo7N/bEqgJCkoukKVHb2clZz3VR5Lcp2NN/A7vGIfKrOwwhtOyua/8oHD2mXJWU=@vger.kernel.org X-Gm-Message-State: AOJu0YyQslyCnJzi7mngyE8M9YlI1UvVuUsmYXrXSo3ot7SJ3StLiDBe dLHSBkK6cAnsILn3JoM6B5v7r/X2qht1O8JGlh8b0rw1JBpt0ct0oJf3HYwn84awauYnBwXtt+J QbhhaS9zpVTRn0Ff+Wqqkzl3Kk7jDQ9Y7e962cYSqK5AxEx7XUwFSSog= X-Google-Smtp-Source: AGHT+IGU1BugYKtYSCi9Fl/9FsIbPPTncwjselRA4wXdisDf7Q5xTu9+qCpgT81N6WVOO6wRNToO1AvfSg+/VmOV+eylCgHxBo7S Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1f81:b0:3cf:b87b:8fd4 with SMTP id e9e14a558f8ab-3d7e47747a0mr30941585ab.15.1744291323816; Thu, 10 Apr 2025 06:22:03 -0700 (PDT) Date: Thu, 10 Apr 2025 06:22:03 -0700 In-Reply-To: <20250410124315.1201290-1-memxor@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67f7c5fb.050a0220.355867.0003.GAE@google.com> Subject: Re: [syzbot] [bpf?] possible deadlock in __queue_map_get From: syzbot To: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, eddyz87@gmail.com, haoluo@google.com, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, linux-kernel@vger.kernel.org, martin.lau@linux.dev, memxor@gmail.com, netdev@vger.kernel.org, song@kernel.org, syzkaller-bugs@googlegroups.com, yonghong.song@linux.dev 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: e403941b bpf: Convert ringbuf.c to rqspinlock git tree: https://github.com/kkdwivedi/linux.git res-lock-next console output: https://syzkaller.appspot.com/x/log.txt?x=1524f23f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=ea2b297a0891c87e dashboard link: https://syzkaller.appspot.com/bug?extid=8bdfc2c53fb2b63e1871 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied.