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 A0623218AA3 for ; Fri, 11 Apr 2025 17:05:55 +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=1744391157; cv=none; b=f3J6a9Q0QtIaUb0RlC6tQJuCc7NxHdtFLBzkU4ZNLvINvtjM6lTaU1KeTg+jOLAzNcrRPef1zwNFocYyvV6YECtrFlQIfDxHRDJz4KQkNl02dGyHmpwtaJe2I/aqKSEQi9K7A3khe6MEa52+EMDDCs+7k5U73QE4kqqE4W+9QlE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744391157; c=relaxed/simple; bh=u3y4G26E+Uojz4XDOISghiFa+oI2cwEsCr3xDxBKBtk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=r2ibArtm9qU/ETVdwqjvW+CvTJRRIMJvdae7m+Q7aNqcQUleZ15fUtK8lje0vkir87ISoFDbdQ5tNEQN8GMqvm1YmeF9N1ykjYTpQaKL0yjzG4H1TvnpJdm/V0XH8kFzqGxqT9E9A6fpVzATYcWkErcO5Bw8+bUq2NbJDzjlYUg= 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-3d443811f04so21813615ab.1 for ; Fri, 11 Apr 2025 10:05:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744391154; x=1744995954; 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=uck+fCiN90YiBBAUZ6LdgLSFOcl5PxWNU1pc3Pcoo2A=; b=oaoBmzzcsNfUyZ3jppIa29nbtQdLfhaLJIEPCYQhGBoOkjjRQ4JGidKvY4TYv8Yn/g AnFY/G1FkG5woTi4+ZDtbthg0m3XEUTHMBY0wCV5DalniC4Rjsmp9HzJpPspaTbGNQ2m OO6XSJkV6XXaspyK5rJgN7T4aEKmNs1stzMmq0XL6RqQEwgmGjEns35zL7pJyn3XKtco /X3NaueUVMJeayHIKeOB0v4IYhXyu7YHPAzt7pwdPtjYX2Esw7xNdfGm38R4Sw5XVUQx hebpxicKXKj9ZBHhJ3BPPtlzAwVrWIOX2UjIFEcOezpEprlUh5/gHFZ5qBZ9HqFdugam 9Ukg== X-Gm-Message-State: AOJu0YzdFr+dvUWYhC2uYkHRP4XKQQEC/FYj+3d8W/Gn8IwhTRbTUhvG 0cad4msLFBsH275uZyoG+ay2sVdrLDNuK6D9MtJh8NhxHgaK/Y2fK8roeQJumKSXLyJqy+LjVp8 4U7Hf3Jm2B/FtJsBCWXO6eWLsblf5O/7uBXPpMCU3AhFE36pQMfJAZw8= X-Google-Smtp-Source: AGHT+IG1PTISSGrxj6Nso2569QsqxqXStiwdpxzgJQ4M79OA1Aa16rZYCptgiTF23r9hQSYscX/LGiZe9Nxt5IdBDFsbm4y8ejtq Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1806:b0:3d6:cbed:32fa with SMTP id e9e14a558f8ab-3d7ec1dc6b3mr32479255ab.5.1744391154700; Fri, 11 Apr 2025 10:05:54 -0700 (PDT) Date: Fri, 11 Apr 2025 10:05:54 -0700 In-Reply-To: <0000000000004c3fc90615f37756@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67f94bf2.050a0220.2c5fcf.0002.GAE@google.com> Subject: Re: [syzbot] Re: [syzbot] [bpf?] possible deadlock in __queue_map_get From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [bpf?] possible deadlock in __queue_map_get Author: memxor@gmail.com #syz test: https://github.com/kkdwivedi/linux.git res-lock-next On Thu, 10 Apr 2025 at 15:22, syzbot wrote: > > 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.