From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Guy Briggs Subject: Re: linux-next 20141216 BUG: sleeping function called from invalid context at mm/slab.c:2849 Date: Thu, 18 Dec 2014 14:24:58 -0500 Message-ID: <20141218192458.GG29998@madcap2.tricolour.ca> References: <2966.1418778594@turing-police.cc.vt.edu> <5444.1418921116@turing-police.cc.vt.edu> <1418921420.5162.19.camel@localhost> <8832.1418930473@turing-police.cc.vt.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <8832.1418930473@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org To: Valdis.Kletnieks@vt.edu Cc: Eric Paris , linux-audit@redhat.com, selinux@tycho.nsa.gov, linux-kernel@vger.kernel.org List-Id: linux-audit@redhat.com On 14/12/18, Valdis.Kletnieks@vt.edu wrote: > On Thu, 18 Dec 2014 11:50:20 -0500, Eric Paris said: > > On Thu, 2014-12-18 at 11:45 -0500, Valdis.Kletnieks@vt.edu wrote: > > > On Tue, 16 Dec 2014 20:09:54 -0500, Valdis Kletnieks said: > > > > Spotted these two while booting single-user on 20141216. 20141208 > > > > doesn't throw these, so it's something in the last week or so.. > > > > > > Gaah! Turns out that 20141208 *is* susceptible - it had been booting > > > just fine for several days, but it went around the bend, apparently due > > > to a userspace or initrd change. > > > > $5 says you updated systemd? > > Actually, yeah. yum.log says: > > Dec 12 14:08:09 Updated: systemd-218-1.fc22.x86_64 > > and things started going downhill that evening. Damned if I know what 218 > was doing to cause the issues. (Other RPM update that looked vaguely > related was for selinux-policy, but again, damned if I know what a policy > file could contain that would change the behavior...) > > Is it worth backing it to -217, or do we have a handle on the issue and > systemd is just the messenger? I've got a potential fix since the problem looks pretty obvious now. This is stable branch material... - RGB -- Richard Guy Briggs Senior Software Engineer, Kernel Security, AMER ENG Base Operating Systems, Red Hat Remote, Ottawa, Canada Voice: +1.647.777.2635, Internal: (81) 32635, Alt: +1.613.693.0684x3545