Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:42440 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752664AbbJOTJr (ORCPT ); Thu, 15 Oct 2015 15:09:47 -0400 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (Postfix) with ESMTPS id 252E1C0798E1 for ; Thu, 15 Oct 2015 19:09:47 +0000 (UTC) Received: from tonberry.usersys.redhat.com (dhcp145-188.rdu.redhat.com [10.13.145.188]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t9FJ9kSj005623 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 15 Oct 2015 15:09:46 -0400 Received: from tonberry.usersys.redhat.com (localhost [127.0.0.1]) by tonberry.usersys.redhat.com (8.14.8/8.14.5) with ESMTP id t9FJ9kYl046379 for ; Thu, 15 Oct 2015 15:09:46 -0400 Received: (from smayhew@localhost) by tonberry.usersys.redhat.com (8.14.8/8.14.8/Submit) id t9FJ9kDF046378 for linux-nfs@vger.kernel.org; Thu, 15 Oct 2015 15:09:46 -0400 Date: Thu, 15 Oct 2015 15:09:46 -0400 From: Scott Mayhew To: linux-nfs@vger.kernel.org Subject: Diskless client with NFSv4 root? Message-ID: <20151015190945.GH49747@tonberry.usersys.redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-nfs-owner@vger.kernel.org List-ID: Is this something that is expected to work? It pretty much deadlocks during boot. I took a vmcore... the oldest RPC task (and the one that had the RPC transport locked) was a SETATTR that was waiting on an id mapper upcall, and the first task in the sending RPC wait queue was the OPEN of the /sbin/request-key program. If I disable id mapping on the NFS server then it looks like it works... -Scott