From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Richard W.M. Jones" Subject: Re: __blkg_lookup oops with 4.2-rcX Date: Fri, 4 Sep 2015 21:42:44 +0100 Message-ID: <20150904204244.GQ29283@redhat.com> References: <20150902145307.GG22326@mtj.duckdns.org> <20150902153255.GH22326@mtj.duckdns.org> <20150904104602.GN29283@redhat.com> <20150904171302.GE25329@mtj.duckdns.org> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: <20150904171302.GE25329-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Tejun Heo Cc: Josh Boyer , Jeff Moyer , msnitzer-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, Li Zefan , Johannes Weiner , cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Linux-Kernel@Vger. Kernel. Org" On Fri, Sep 04, 2015 at 01:13:02PM -0400, Tejun Heo wrote: > The only struct which is large enough for 0xbb8 offset is > request_queue. Hmm.... can you please try the brute force debug patch > below and report the kernel log after the crash? So the good(?) news is this bug is not reproducible with the Fedora kernel 4.3.0-0.rc0.git7.1.fc24.x86_64 (tested both with and without your patch). I'll keep it running overnight just in case .. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://libguestfs.org