From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (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 CCDB315E1FB; Thu, 18 Apr 2024 11:01:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.187 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713438088; cv=none; b=aNyrI/JKuPgQ1FoWXmhKHdgpqGy+y42bQQpVIC7wAJ5ldHCNvdl7M4zSoVud/Q+X17A7bjCquAzoC7TtDCSbbKhoQLBinhdanw5xNH20iyN1WyDvRm+D7+cSfUMea6016IBRU+vwrT/nf23mlnriqjfIpPfNSRi0xAJKwUgrx54= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713438088; c=relaxed/simple; bh=IWBVXvEKNivmLFW4lhGxT3c3JjTMOajf11zBuAEveQk=; h=Message-ID:Date:MIME-Version:Subject:To:CC:References:From: In-Reply-To:Content-Type; b=cGev8K6ceMTYi2sUQgfGjRbcsDw6+SI0+RLd9VUgPzEaTqNnzHb+3PeMC/9n6jPn9P8UsT/7V4N3OaGFDbYBcOcj22CqrP2wabrVPM2glErf603XMLk+ykuhbTghv4X1V3hz88Q12u5wkFAeoAnqV5115/RRxSR0NFF56Cz2pEo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com; spf=pass smtp.mailfrom=huawei.com; arc=none smtp.client-ip=45.249.212.187 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=huawei.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huawei.com Received: from mail.maildlp.com (unknown [172.19.162.254]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4VKvrm0sHWzwS8W; Thu, 18 Apr 2024 18:58:16 +0800 (CST) Received: from dggpeml500026.china.huawei.com (unknown [7.185.36.106]) by mail.maildlp.com (Postfix) with ESMTPS id 557751800C3; Thu, 18 Apr 2024 19:01:20 +0800 (CST) Received: from [10.174.178.66] (10.174.178.66) by dggpeml500026.china.huawei.com (7.185.36.106) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Thu, 18 Apr 2024 19:01:19 +0800 Message-ID: <7672ae57-86b9-91c2-b03e-2700b931b677@huawei.com> Date: Thu, 18 Apr 2024 19:01:19 +0800 Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.0.2 Subject: Re: [PATCH net] net/smc: fix potential sleeping issue in smc_switch_conns To: Wenjia Zhang , Guangguan Wang , , , , , , CC: , , , , , , References: <20240413035150.3338977-1-shaozhengchao@huawei.com> <6520c574-e1c6-49e0-8bb1-760032faaf7a@linux.alibaba.com> <0cbb1082-8f5f-4887-b13c-802c2bbcca36@linux.ibm.com> From: shaozhengchao In-Reply-To: <0cbb1082-8f5f-4887-b13c-802c2bbcca36@linux.ibm.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggpeml500026.china.huawei.com (7.185.36.106) On 2024/4/18 15:50, Wenjia Zhang wrote: > > > On 18.04.24 03:48, shaozhengchao wrote: >> >> >> On 2024/4/17 23:23, Wenjia Zhang wrote: >>> >>> >>> On 17.04.24 10:29, shaozhengchao wrote: >>>> >>>> Hi Guangguan: >>>>    Thank you for your review. When I used the hns driver, I ran into >>>> the >>>> problem of "scheduling while atomic". But the problem was tested on the >>>> 5.10 kernel branch, and I'm still trying to reproduce it using the >>>> mainline. >>>> >>>> Zhengchao Shao >>>> >>> >> Hi Wenjia: >>    I will try to reproduce it. > > Thanks! > > In addition, the last time I sent you a >> issue about the smc-tool, do you have any idea? >> > Hi Wenjia: I have send it to you. Could you receive it? Thank you. Zhengchao Shao > mhhh, I just see a patch from you on smc_hash_sk/smc_unhash_sk, and it > is already applied during my vacation and it does look good to me. If > you mean others, could you send me the link again please, I mightbe have > missed out on it. > >> Thank you >> Zhengchao Shao >>> Could you please try to reproduce the bug with the latest kernel? And >>> show more details (e.g. kernel log) on this bug? >>> >>> Thanks, >>> Wenjia >> >