From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B5A3C10F27 for ; Mon, 9 Mar 2020 17:20:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 54B0120828 for ; Mon, 9 Mar 2020 17:20:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ziepe.ca header.i=@ziepe.ca header.b="lkN3y01M" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727254AbgCIRU0 (ORCPT ); Mon, 9 Mar 2020 13:20:26 -0400 Received: from mail-qk1-f194.google.com ([209.85.222.194]:45453 "EHLO mail-qk1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727220AbgCIRU0 (ORCPT ); Mon, 9 Mar 2020 13:20:26 -0400 Received: by mail-qk1-f194.google.com with SMTP id c145so4200407qke.12 for ; Mon, 09 Mar 2020 10:20:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=/ltngBYRTq01VJ1mavtyfY7YquNSfQ240OOdDMNjEPw=; b=lkN3y01M+jRbyXcB2PTb34TCdZkzqNCpr3kKRGVsbTTkmQCpclvMil0PXwAnoS7hXJ IHgdcbnWhm53FlGQg+nw2uV+Uv8AN36EuGK2iJ2reiBH2vBPtIYTShFayJ/hGx6U1LR2 nsxMOTTqqYuosJEz6PJ/49jXPJ/EtVbUp1IBJo1y0BWpDSMGvwGHvMIQcYtc1Iiz71K7 cEvrkldGv792Wd+HiWmspFBhqY2pMPueB54emrTEyyDmQfgjxjrn21aEG/z5/tdiQ+5o xSyBwtLHD3ajRg8UVKDvavghCUhfG9ljykYwmIoITTQABBWIc6DRgHqHa/DPRqWX54vu 68kQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=/ltngBYRTq01VJ1mavtyfY7YquNSfQ240OOdDMNjEPw=; b=R1LgSrdV8BFKwaKJysL6Nl3EDeGpP4ejTU5KT9aclaYTozz+VJV5dGt9RKYpGnQtYp srl0dbAR7nCvc/VmLMF2PlHYhAbC+jDQGH28rqCIuOQj0Ym5nHm0HQ0AqSN/Hoxk0bZh V56nQxTmXS5gFNkZtup5qmrG5mrAjxh+IOI4S+SEulCgojQvG07F9MAxvPRZrNx/P8yu ewm+AUvbN067asv2+/GmKeP7zI0qjUyX9GqsE2M1TllX5w5lJYvF7hgN41Ji8KXCCB8N Co9ixESGwnOqb5TuTGqvw8FggLqQDkjQZ97gONjXG9mbO1VVYqTQQHi713gfyJktRrDz 5ykg== X-Gm-Message-State: ANhLgQ1OMERTnhtZhzPRu/fXv2EoFU0ppPwMYSxn+J5BdPGMnoQ9RwgK GvMc21y5Pbn9EoCHIy6GMO+iog== X-Google-Smtp-Source: ADFU+vuon4UvVQ0IcBAxERt2kYVbP0L54kTICvX/0VCM97k+xQUtNluXnTuD0CRyl2AanS/HYCF5Pg== X-Received: by 2002:a37:7744:: with SMTP id s65mr14967669qkc.405.1583774424715; Mon, 09 Mar 2020 10:20:24 -0700 (PDT) Received: from ziepe.ca (hlfxns017vw-142-68-57-212.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.68.57.212]) by smtp.gmail.com with ESMTPSA id d1sm22308790qkj.29.2020.03.09.10.20.24 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 09 Mar 2020 10:20:24 -0700 (PDT) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1jBM4l-0003gE-Je; Mon, 09 Mar 2020 14:20:23 -0300 Date: Mon, 9 Mar 2020 14:20:23 -0300 From: Jason Gunthorpe To: syzbot Cc: bmt@zurich.ibm.com, dledford@redhat.com, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: possible deadlock in siw_create_listen Message-ID: <20200309172023.GS31668@ziepe.ca> References: <000000000000161ee805a039a49e@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000161ee805a039a49e@google.com> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On Fri, Mar 06, 2020 at 05:25:10PM -0800, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 68e2c376 Merge branch 'hsr-several-code-cleanup-for-hsr-mo.. > git tree: net-next > console output: https://syzkaller.appspot.com/x/log.txt?x=10c92e91e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=7e519c35f474a428 > dashboard link: https://syzkaller.appspot.com/bug?extid=3fbea977bd382a4e6140 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+3fbea977bd382a4e6140@syzkaller.appspotmail.com #syz dup: possible deadlock in cma_netdev_callback