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 41A2E221FDA for ; Fri, 11 Apr 2025 17:06:07 +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=1744391169; cv=none; b=CUx8JnyRz6TPMmQB/jAtI4CFDFKi2YoMSgh1fyiDjYXC4fNANXEpI4D5ZKR4ia3+5TqprTCV+q/OSmqvi+2CIOZF1JlfjcaC5cQzc0MKoekOhxTZEzrehXZorLoK0n5DtDUPAf51aahFwexuJmRgabd7UhVE8q7OG1c9g7i0abs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744391169; c=relaxed/simple; bh=fINXpZWLyb0M8y4RLoMLlTf+NC6oxDWOp6G4HE2YyC0=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=aWMgugtdTBzW/UT0NUcVRGl8EmX6YTaY00o/KB19Lcny7ZfC6EhcBoNAFaO4txrCPf5WaCjTDpYIxAhhtMCyBdVCobEhLftJrg2cPnLK2IBkljfmxKLOrKd3n+xHP5JG0Kg2kjnhEOq9sL+MxBD98FYtygHg3IrSYLBF2WsJ9Nc= 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-3d5d6c997d2so21828475ab.0 for ; Fri, 11 Apr 2025 10:06:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744391167; x=1744995967; 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=tDkd2xkO9DmzeJHD8IW67m+nmrFduYYu+jMcteSAmww=; b=ksuLamoZUjQNUyLE5catWG3Qlq+r6U2jkJ66FgmH99mVxxlyZPEJ0FLslvs9Xs2PSh SIeiFhhMz6mhJ6TxPiZAMd/OgGE0zJ5wZMJ3p2Gff4FiHXqfGYlG3O9d8yKGHP8n3f0Q pJPQtdM5SVtHEfEgISbkC3H5L3BbzcnTWqi18va9iZqdz/fN92ePcp9OaEgXEzYEUydf yaSCPd0KkFTlkoFTYjjB1uikjl0gfdPBUDQEJKKdUF0u4A9GT90XnWIf1WwqFq4ru7yu pxJvc7HZtRf6aIN5yImPTWLeQrFXmdxJ8wQwYhg38xI5ey1A8nw8UU0kdmHS64hTZMjG 5kvA== X-Gm-Message-State: AOJu0Yx6Fsf0NbBI79XYrqufMOUdSllmTNSNEHKJhePqfNVBfhn3UQw5 4c9JG/vIwa2csmLiPZLEPj3u68I7rxDr3+Y7Q2p/JYw8KTkAbYwRCDaLrvqqYFL2yJ0Dm9r+bsR 0wLwQnpxDszaNjkhDzkJqFB7Xe2ZhPVDw8nWYJID9xIXb6Rhwx++TCT8= X-Google-Smtp-Source: AGHT+IFubsGiI8M39KW4/CkseSwaMxCXNG8WWIJfHm2tL7xuBMjlTv+eKtJiYeyXulv2fmEl/h6SgfRGUA4gVJgy46tT4GFetJe+ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3b07:b0:3d1:a34b:4d01 with SMTP id e9e14a558f8ab-3d7ec202344mr40883735ab.8.1744391167328; Fri, 11 Apr 2025 10:06:07 -0700 (PDT) Date: Fri, 11 Apr 2025 10:06:07 -0700 In-Reply-To: <000000000000c80abd0616517df9@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67f94bff.050a0220.378c5e.0001.GAE@google.com> Subject: Re: [syzbot] Re: [syzbot] [bpf?] possible deadlock in queue_stack_map_push_elem 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_stack_map_push_elem Author: memxor@gmail.com #syz test: https://github.com/kkdwivedi/linux.git res-lock-next On Thu, 10 Apr 2025 at 15:08, 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=1511f74c580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=ea2b297a0891c87e > dashboard link: https://syzkaller.appspot.com/bug?extid=252bc5c744d0bba917e1 > compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 > > Note: no patches were applied.