Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753997Ab2K2TRB (ORCPT ); Thu, 29 Nov 2012 14:17:01 -0500 Received: from mail-vb0-f46.google.com ([209.85.212.46]:58121 "EHLO mail-vb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753086Ab2K2TRA (ORCPT ); Thu, 29 Nov 2012 14:17:00 -0500 MIME-Version: 1.0 Date: Thu, 29 Nov 2012 11:16:59 -0800 Message-ID: Subject: Regression with initramfs and nfsroot (appears to be in the dcache) From: Patrick McLean To: Alexander Viro Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 856 Lines: 20 With 3.6-rc1 and up, when using a (dracut) initramfs with a read-only nfs root, all accesses to /proc. /sys and /dev return EBUSY. Bisecting finds this commit as where this was introduced: > ee3efa91e240f513898050ef305a49a653c8ed90 is the first bad commit > commit ee3efa91e240f513898050ef305a49a653c8ed90 > Author: Al Viro > Date: Fri Jun 8 15:59:33 2012 -0400 > > __d_unalias() should refuse to move mountpoints > > Signed-off-by: Al Viro > > :040000 040000 1d6ecde959d3f8252b33f4adff3c4bf1e67f2b92 992ec34563b90fb349957418f76d4673c1af4ab6 M fs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/