On Tue, May 27, 2014 at 9:04 PM, Sharmila Govind
<sharmilagovind at gmail.com> wrote:
> Hi,
>
> I am setting up a ceph cluster for some experimentation. The cluster is
> setup successfully. But, When I try running rbd map on the host, the kernel
> crashes(system hangs) and I need to do a hard reset for it to recover. Below
> is my setup.
>
> All my nodes have Linux kernel 3.5 with Ubuntu 12.04. Iam installing the
> emperor version of Ceph.
It would help if you could capture the crash, but most probably it's
a known bug in 3.5, which leads to a crash instead of returning an
error to 'rbd map' when the kernel misses required feature bits, i.e.
too old. I would recommend running at least 3.9.
Thanks,
Ilya
