On Tue, Dec 13, 2016 at 02:14:37PM +0300, Slawa Olhovchenkov wrote: > On Tue, Dec 13, 2016 at 01:05:35PM +0200, Konstantin Belousov wrote: > > > 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 ? > > Unpatched kernel boot with the memory test enabled when NUMA and > interleave options enabled -- I am already reported this. > > patched kernel with the memory test enabled boot too. > > i.e. memory test enabled allow boot in any situation. Then what about was the statement above ? You said that NUMA and interleave on caused hang. Was that on the patched kernel ? > > > Could you enable the options, power down the machine for 10-20 minutes, > > and try to boot ? > > For with kernel and bios options and boot options? > I am have two day befor server put in production for any expirements, > but please, be more clear in what combination need to test. Boot with NUMA enabled and interleave off. Patch kernel with the 'if (1 || ...)' patch. Reboot, enter BIOS setup and enable interleave there. Try to boot - does it boot ? If it did not booted, power machine off for 10 minutes. Power it on, try to boot (with the same patched kernel). Does the machine boot now ?Received on Tue Dec 13 2016 - 10:23:47 UTC
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