Received: by 2002:a25:31c3:0:0:0:0:0 with SMTP id x186csp607691ybx; Wed, 30 Oct 2019 02:02:07 -0700 (PDT) X-Google-Smtp-Source: APXvYqx+8B/z1WGuCtTMrYGjYaXAIjbl5JnU3OrQRcsjLTi9oDvMxj8pdovjZoHcnQ+mSuRjCrOA X-Received: by 2002:a17:906:f15:: with SMTP id z21mr7802339eji.119.1572426127163; Wed, 30 Oct 2019 02:02:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1572426127; cv=none; d=google.com; s=arc-20160816; b=tgMyY9JRHe8PxTVNDM1JIpX/r8hitCqM/Ojc7VlxKWNyR6TszudWwvUJ9WpXK0oNlQ f7k1sliTXfWsrEkNGny/mN5j6IP+IaOLaFvTrqu3Tu6FgE/BHhjNVXp0WMTo5khCsVTT LJaVM66x0CjdeYjXi/l10Dn6hSmSecLpu1abz+ugfl70uUTyNDAXE5Vxeh/e3Y0QwkDm 8FjX+q8NMNvcRVNn5WJSMDfcV81gDeWhUw2dqH5aEnNCTMASuQ6jVX4CJrel9juLtZHy d9fo+z0/wJJ7FhgHiR1MmjLw9VGJCt9rlbI2arqhH+CLN594ZzKk2YoZOHvHUvdHch3C vGhw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:organization:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=WHTv1T5wcqNw51GIgpkrglzaOC0eKVlsr8gpMah6L4U=; b=skXi7bd6XPm1YdCdnkR/l6nvT5MU7h7xTFdQId35d5SWhif3VhWMtkUPmtZoc5GLfK 0gL1EhAHlgciG/5Gm2lkIvmEmzScIHSMLYvLuiBbVnzO6g9AO0QnTnY/Gpc0uI+wIYMM N1Sj5x69SbmSFTEVW1me8YNF0Qxx6nC0pXDsBhHg9dT04qVLSITjndZTe16bK7n7P3zx 2XIr1OxtIMlaJao64UQ+93YH0WQUg7zvksCQkejums7u2zshJFgegXuCY2RW3iu3BYd4 pukqk84I4AAhLbONc2FtSuSnEbX/6kepcWpGbOiCcKtp8uwzKa8obX6P3RnPncr+E8sS juBw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t21si1094713edi.123.2019.10.30.02.01.42; Wed, 30 Oct 2019 02:02:07 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726104AbfJ3JBL (ORCPT + 99 others); Wed, 30 Oct 2019 05:01:11 -0400 Received: from latin.grep.be ([46.4.76.168]:37371 "EHLO latin.grep.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726028AbfJ3JBK (ORCPT ); Wed, 30 Oct 2019 05:01:10 -0400 X-Greylist: delayed 1254 seconds by postgrey-1.27 at vger.kernel.org; Wed, 30 Oct 2019 05:01:09 EDT Received: from [105.12.0.33] (helo=gangtai.home.grep.be) by latin.grep.be with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1iPjWW-0005Cf-Be; Wed, 30 Oct 2019 09:40:12 +0100 Received: from wouter by gangtai.home.grep.be with local (Exim 4.92.3) (envelope-from ) id 1iPjWH-0006qB-RE; Wed, 30 Oct 2019 10:39:57 +0200 Date: Wed, 30 Oct 2019 10:39:57 +0200 From: Wouter Verhelst To: "Richard W.M. Jones" Cc: Mike Christie , syzbot , axboe@kernel.dk, josef@toxicpanda.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, nbd@other.debian.org, syzkaller-bugs@googlegroups.com Subject: Re: INFO: task hung in nbd_ioctl Message-ID: <20191030083957.GD25097@grep.be> References: <000000000000b1b1ee0593cce78f@google.com> <5D93C2DD.10103@redhat.com> <20191017140330.GB25667@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191017140330.GB25667@redhat.com> X-Speed: Gates' Law: Every 18 months, the speed of software halves. Organization: none User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Oct 17, 2019 at 03:03:30PM +0100, Richard W.M. Jones wrote: > On Tue, Oct 01, 2019 at 04:19:25PM -0500, Mike Christie wrote: > > Hey Josef and nbd list, > > > > I had a question about if there are any socket family restrictions for nbd? > > In normal circumstances, in userspace, the NBD protocol would only be > used over AF_UNIX or AF_INET/AF_INET6. Note that someone once also did work to make it work over SCTP. I incorporated the patch into nbd-client and nbd-server, but never actually tested it myself. I have no way of knowing if it even still works anymore... [...] -- To the thief who stole my anti-depressants: I hope you're happy -- seen somewhere on the Internet on a photo of a billboard