On Tue, Dec 13, 2016 at 02:37:14AM +0300, Slawa Olhovchenkov wrote:
> On Mon, Dec 12, 2016 at 04:20:33PM -0600, A. Wilcox wrote:
> > >>>> Try the debugging patch below, which unconditionally disables import of
> > >>>> previous buffer. To test, you would need to boot, then frob options in
> > >>>> BIOS, reboot, again frob etc.
> > >>>
> > >>> still need test patch? if yes, with BIOS options?
> > >> Yes, please test the patch. I explained the procedure above.
> > >
> > > sorry, i don't know 'frob'.
> > > what exactly options combination I need test and what about memory test?
> > >
> > The idea is that when rebooting, stale memory contents remain, but are
> > corrupted due to interleave.
> > "Frob" basically means "mess with". So apply patch, test kernel,
> > reboot, change NUMA option, reboot again, see if it works, and so on.
> > Basically repeat your test with the NUMA=on interleave=on, NUMA=off
> > interleave=on, etc etc.
> NUMA=on interleave=off booted
> NUMA=on interleave=on hang
> I think different combination whatever?
Do you mean, that both patched kernel, and unpatched kernel with the
memory test enabled, hang when NUMA and interleave options enabled ?
Could you enable the options, power down the machine for 10-20 minutes,
and try to boot ?
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