Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx1.redhat.com ([209.132.183.28]:56564 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751570AbbBZQ7j (ORCPT ); Thu, 26 Feb 2015 11:59:39 -0500 From: David Howells In-Reply-To: <1655.1424969471@warthog.procyon.org.uk> References: <1655.1424969471@warthog.procyon.org.uk> <1424964991.10136.8.camel@primarydata.com> <1411654543.3044.24.camel@leira.trondhjem.org> <28059.1411650278@warthog.procyon.org.uk> <6150.1424947519@warthog.procyon.org.uk> To: Trond Myklebust Cc: dhowells@redhat.com, linux-nfs@vger.kernel.org, steved@redhat.com Subject: Re: NMI/soft lockup in nfs_delegation_need_return() MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Date: Thu, 26 Feb 2015 16:59:34 +0000 Message-ID: <1830.1424969974@warthog.procyon.org.uk> Sender: linux-nfs-owner@vger.kernel.org List-ID: David Howells wrote: > Trond Myklebust wrote: > > > This patch ensures that the superblock doesn't go ahead and disappear > > underneath us while the state manager thread is returning delegations. > > It doesn't help. It seem likely that it would, though. The superblock is It doesn't seem likely, that is... > unlikely to disappear since there's an active tar running against it. David