From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (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 9F4B82853FA for ; Thu, 10 Apr 2025 13:22:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744291326; cv=none; b=e3X5OaVulLzv6qW00MJWbYKHxuR0LE8dOnHJ1pnqZPymIzagRS2aF0PnglZ3baYoep7jBuM5rKTjYDcfu78ukCDd4CccVwOe3VEf9Ii5vtxHHscA3xizv9STKDm1hYgAEOsNypjQtteG1XqvUGgY+1bFJDtIe99i8z5vrCUbKfo= 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=209.85.166.69 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-io1-f69.google.com with SMTP id ca18e2360f4ac-85b41b906b3so91149839f.0 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=cffg4BUnuuuqpbFfwT5oGjzSsP93cTPx9g+UDSfF9khTMFcMIqR22jMzZfaFmVCKZ9 X1vTo0sezRglXYZHCLJAo4ZfhH37T9MczTl5nkZOEc4rOGfN2ICtPuDTuboBAbSDA8Cp PtV1HMQwTWzXVcqRU4f1oRa56VMc2pB3QLzmWeLL9wd8eY+4G3TGv/+CMkWQ87fwQ5by XgzbIy5H4lHIXw+QnUzer38iFLSwW8QvwD1YSQExNyEKmYbAIVS2On+/UGhsuKmzzuZL CBxd9LweC78zOOoLydRdu0wbjUEaFhLrF8nQTxgb7t4xzBAoqJSkFiScZo/jZfbFYJLp 3mZA== X-Forwarded-Encrypted: i=1; AJvYcCXg7RHITpscfGllZzsXVNph7ASkEfNOfYIc0c4tfjpP/kXfpHWF/wGqyhsCu7NN6yUeeRczz2l4djT0jhk=@vger.kernel.org X-Gm-Message-State: AOJu0YzF1RYg0C115xJ2DEE95f7qn8gF1XqU1bizMu1nux/Oa+EcTBxg ztYXy6Ka7Y1QYYL7ibQ1Ir83meIIpeOWqR5JGf0NHVxrxgBmVFqkL52/JS7pcucFyd420X2Lvcn UeMqdFxfkZtW95fOespgm+QP1jesfhRCQmb68zDUBzfJTkpEh8DE0FNk= X-Google-Smtp-Source: AGHT+IGU1BugYKtYSCi9Fl/9FsIbPPTncwjselRA4wXdisDf7Q5xTu9+qCpgT81N6WVOO6wRNToO1AvfSg+/VmOV+eylCgHxBo7S Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1f81: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.