On Mon, Feb 13, 2012 at 08:52:19AM -0800, Yinghai Lu wrote: > On Mon, Feb 13, 2012 at 7:28 AM, Don Zickus <dzickus at redhat.com> wrote: > > On Sat, Feb 11, 2012 at 05:04:15PM -0800, Yinghai Lu wrote: > >> > > >> > v2: removed the disable lapic code too > >> > >> with this commit, kdump is not working anymore on my setups with > >> Nehalem, Westmere, sandbridge. > >> these setup all have VT-d enabled. > > > > Hi Yinghai, > > > > Thanks for the report. ?Can you attach the .config you were using and what > > vendor you were using for Nehalem, Westmere and Sandybridge. ?I'll try to > > reproduce it in my lab. > > Sure, please check attached one Looks like I can reproduce the hang with my original patch and things work when we stick the disable_local_APIC() back in there. I'll keep poking. Cheers, Don