From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B3DBF4ED; Sat, 12 Apr 2025 22:10:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744495820; cv=none; b=X9PXYWCPfHWo5bg7Z3fxQqXjD6Bjdg5bSYStA7F+HS4upqqwPa/hakuRZnGqZdPE9qXMLr67Wfe0CT351F/gn4NjN18iSHa1YKRVeHqxDgwhvA2wb3C3ZLQPulFAjEuGuKoXlzzeNzpXMXqtAOlA/+mK7CkBQY0+Ru1hWQ4bQdg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744495820; c=relaxed/simple; bh=Lomi+rDeikQZ//txMKfu2DTk7uH+GVOm/i76eZj/JAA=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=CLP9tWC6fmWoOQu6oItz7/Q8bXulEKg8FmoUCALTE1mvdq4KuU4BB97stGKCyff2QKzGG4DPH8q6kQx/mG2g0Mz0gTgUo/abwa28YwKR1FFDkdyhHb/J9zy9YmC1BokDfi7XgSG/3abThK5Gu8Cr6ajRZTJP8ZIZ2OqX1PbjLVY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=X8CfQ49H; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="X8CfQ49H" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D8549C4CEE3; Sat, 12 Apr 2025 22:10:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744495816; bh=Lomi+rDeikQZ//txMKfu2DTk7uH+GVOm/i76eZj/JAA=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=X8CfQ49HwVVCE+LoeVrPX8zD/Ypp2tq0BdBntSXcnBKN0gmdNRH5YnetRlrkUNdtd JdqTYe+wIjuUWH/TBPhEYMlQ1sF1+UZdO+d4xMxQdmQUuyLmHIxbI5UGja44JVoHeq +FsreJBnHVPUFtEzkPk8oXQ1nz5DySPHYCBz0ZcrZWx5rU4RrDaCDX7WJopEf+NkiQ WrimKWGW9GdavKp4lzaEXTZp7qbuFV8r/fZ7BB+HwBB3YwV2vpXPvdFhCvZlC7Zf8h T6/JLPS1k3HiVs9IPkQ3tfml8IxEFN8GLzFpNnR6gW/Y/yicrDu+pxyjUYNxc4LEmM 4e42zwh/8wKgg== Date: Sat, 12 Apr 2025 15:10:14 -0700 From: Jakub Kicinski To: syzbot Cc: andrii@kernel.org, ast@kernel.org, bjorn@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, horms@kernel.org, jonathan.lemon@gmail.com, linux-kernel@vger.kernel.org, maciej.fijalkowski@intel.com, magnus.karlsson@intel.com, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [bpf?] [net?] possible deadlock in xsk_notifier (2) Message-ID: <20250412151014.1f0679ec@kernel.org> In-Reply-To: <67f9ed1a.050a0220.379d84.0005.GAE@google.com> References: <67f9ed1a.050a0220.379d84.0005.GAE@google.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Fri, 11 Apr 2025 21:33:30 -0700 syzbot wrote: > syzbot found the following issue on: > > HEAD commit: 900241a5cc15 Merge tag 'drm-fixes-2025-04-11-1' of https:/.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1604ef4c580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=eecd7902e39d7933 > dashboard link: https://syzkaller.appspot.com/bug?extid=6f588c78bf765b62b450 > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > userspace arch: i386 > > Unfortunately, I don't have any reproducer for this issue yet. #syz dup: possible deadlock in xsk_diag_dump