From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-111.freemail.mail.aliyun.com (out30-111.freemail.mail.aliyun.com [115.124.30.111]) (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 5E1E9653; Wed, 6 Nov 2024 10:01:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.111 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730887297; cv=none; b=R/Ji8f9FE9TSl6jeGpdJo22RGbKv86jxPAsJroJYlveeRa1mtQ4b06hzbptabOV6KRf6yULHYN3RIwV9bi/GUrHh2ljlnv6dAj2sSlkXHWnMNGeahI+8k1Qdgi5RPZ4y7kc9odg+PTszaML+oIbEf/Shu9KZHg7pLT33se4SWIA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730887297; c=relaxed/simple; bh=5H4p85iBCVpCJqUU/+0E8vRTCYLytXTgiQ/HjbhbJuo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=OnoB2CL7XhLs9EN5WzXL7NmfhBepF3vznFfWm05Fqd4e147BsXbvYiGizQ8gjm6lCHX0cN7Ir6ncLtS+KbgmM65mkqYx59DeVpOaXFip7WHtEGzCQJJ+J/vf4FuYpxciIN0HipcO4k0CAQsEPkl2A6agSm4lQWj48+d3UscfI1A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=kvy+j8WI; arc=none smtp.client-ip=115.124.30.111 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="kvy+j8WI" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1730887291; h=Message-ID:Date:MIME-Version:Subject:To:From:Content-Type; bh=gAEn9thfzLRy42eN3/oD6NOZqicEf53zaj+UIUQCNdQ=; b=kvy+j8WIfJJJDrynNtWY2DrUllAaAwA5VSw028x/+FTMOjM+AlJ7mCbrPJ9P+AMjTrY8sQ5X9o8IriXrDr1uEHYtjrQhupVID/GdDLgBO0ZF49YeECRPL8xfh7TZ57FUWybaYNShFcyhIzX7A2uk88N3uGu4f1Ui/q62v7va7GU= Received: from 30.221.147.151(mailfrom:alibuda@linux.alibaba.com fp:SMTPD_---0WIqqUbo_1730887288 cluster:ay36) by smtp.aliyun-inc.com; Wed, 06 Nov 2024 18:01:29 +0800 Message-ID: Date: Wed, 6 Nov 2024 18:01:28 +0800 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [lvs?] possible deadlock in start_sync_thread To: Pablo Neira Ayuso , Wenjia Zhang , Jan Karcher , Tony Lu , Wen Gu , linux-s390@vger.kernel.org Cc: syzbot , coreteam@netfilter.org, davem@davemloft.net, edumazet@google.com, horms@verge.net.au, ja@ssi.bg, kadlec@netfilter.org, kuba@kernel.org, linux-kernel@vger.kernel.org, lvs-devel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com References: <000000000000abf2f0061ba46a1a@google.com> <6725704b.050a0220.35b515.0180.GAE@google.com> Content-Language: en-US From: "D. Wythe" In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 11/5/24 7:25 PM, Pablo Neira Ayuso wrote: > Hi, > > I am Cc'ing SHARED MEMORY COMMUNICATIONS (SMC) SOCKETS maintainers. > > Similar issue already reported by syzkaller here: > > https://lore.kernel.org/netdev/ZyIgRmJUbnZpzXNV@calendula/T/#mf1f03a65108226102d8567c9fb6bab98c072444c > > related to smc->clcsock_release_lock. > > I think this is a false possible lockdep considers smc->clcsock_release_lock > is a lock of the same class sk_lock-AF_INET. > > Could you please advise? > > Thanks. Hi Pablo, Thank you for the reminder. We are currently working on it. The community has already submitted some fixes[1], and we are still reviewing them. Best wishes, D. Wythe [1] https://lore.kernel.org/netdev/c2ac8e30806af319eb96f67103196b7cda22d562.1729031472.git.danielyangkang@gmail.com/