Date: Tue, 13 Dec 2016 13:23:40 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Slawa Olhovchenkov <slw@zxy.spb.ru> Cc: "A. Wilcox" <AWilcox@Wilcox-Tech.com>, freebsd-current@freebsd.org Subject: Re: Enabling NUMA in BIOS stop booting FreeBSD Message-ID: <20161213112340.GT54029@kib.kiev.ua> In-Reply-To: <20161213111437.GH90287@zxy.spb.ru> References: <20161212165457.GI54029@kib.kiev.ua> <20161212171634.GD90287@zxy.spb.ru> <20161212172418.GK54029@kib.kiev.ua> <20161212174311.GE90287@zxy.spb.ru> <20161212183647.GL54029@kib.kiev.ua> <20161212192619.GF90287@zxy.spb.ru> <584F22B1.9000903@Wilcox-Tech.com> <20161212233714.GA90401@zxy.spb.ru> <20161213110535.GS54029@kib.kiev.ua> <20161213111437.GH90287@zxy.spb.ru>
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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 ?
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