Messages in this thread | | | Date | Mon, 13 Feb 2012 17:12:58 -0500 | From | Don Zickus <> | Subject | Re: [tip:x86/debug] x86/kdump: No need to disable ioapic/ lapic in crash path |
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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@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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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