On Fri, Sep 04, 2015 at 09:42:44PM +0100, Richard W.M. Jones wrote: > 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 .. In fact the bug does happen with 4.3.0-0.rc0.git7.1.fc24.x86_64, but it's a bit rarer than before. I'm now using your patch, and the output from the patch is attached. I hope that helps - let me know if there's anything else you'd want me to try. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v