On 05/13/19 at 04:06pm, Baoquan He wrote: > Hi Dave, > > On 05/13/19 at 09:50am, Borislav Petkov wrote: > > On Mon, May 13, 2019 at 03:32:54PM +0800, Baoquan He wrote: > > > This is a critical bug which breaks memory hotplug, > > > > Please concentrate and stop the blabla: > > > > 36f0c423552d ("x86/boot: Disable RSDP parsing temporarily") > > > > already explains what the deal is. This code was *purposefully* disabled > > because we ran out of time and it broke a couple of machines. Don't make > > I remember your machine is the one on whihc the issue is reported. Could > you also test it and confirm if these all things found ealier are > cleared out? > I did some tests on the laptop, thing is: 1. apply the 3 patches (two you posted + Boris's revert commit 52b922c3d49c) on latest Linus master branch, everything works fine. 2. build and test the tip/next-merge-window branch, kernel hangs early without output, (both 1st boot and kexec boot) So I think these 3 patches are good, but there could be other issues which is not related to the problem we saw. Another thing is we can move the get rsdp after console_init, but that can be done later as separate patch. Thanks Dave _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec