Fedora kernel bug day.

[Bruno Wolff III]

On Sat, Oct 08, 2011 at 18:30:44 +0800,
  Américo Wang <xiyou.wangcong at gmail.com> wrote:
> On Thu, Oct 6, 2011 at 12:14 AM, Bruno Wolff III <bruno at wolff.to> wrote:
> > On Wed, Oct 05, 2011 at 10:38:18 -0400,
> >  Dave Jones <davej at redhat.com> wrote:
> >>
> >> The kernel-debug rpm should have everything you'd need.
> >
> > But I can't get the system to crash to get a traceback. It just hangs.
> > I tried using the sysrq commands and NMI timeouts and I haven't been able
> > to get a dump or traceback.
> 
> Maybe you can try "nmi_watchdog=panic"?

I am not sure if I tried that particular varient, but I did try several
different watchdog related kernel settings. I can got back and test that.