Enabling NUMA in BIOS stop booting FreeBSD

[Slawa Olhovchenkov]

On Tue, Dec 13, 2016 at 05:11:14PM +0300, Slawa Olhovchenkov wrote:

> On Tue, Dec 13, 2016 at 03:57:59PM +0200, Konstantin Belousov wrote:
> 
> > On Tue, Dec 13, 2016 at 03:49:32PM +0300, Slawa Olhovchenkov wrote:
> > > > Boot with NUMA enabled and interleave off.
> > > 
> > > Already with patched kernel
> > > 
> > > > Patch kernel with the 'if (1 || ...)' patch.
> > > > Reboot, enter BIOS setup and enable interleave there.
> > > > Try to boot - does it boot ?
> > > 
> > > No.
> > > 
> > > > If it did not booted, power machine off for 10 minutes.
> > > 
> > > OK
> > > 
> > > > Power it on, try to boot (with the same patched kernel).
> > > > Does the machine boot now ?
> > > 
> > > Don't boot.
> > 
> > I am really puzzled.  In other words, touching all memory causes the
> > msgbuf to not hang.
> 
> yes
> 
> > Can you try one more experiment ?
> > Take the patch below, apply it.
> > >From the config where interleave is disabled, install new kernel.
> > Reboot, enter BIOS setup and enable interleave.
> > Set late_console to zero in loader.
> > Do not enable memory test.
> > Boot the patched kernel.
> > Kernel must hang, according to your previous reports.
> > I want to see the console log.
> 
> Hmm. I am [already] show output from ddb, and guess kernel will be
> hang at first wirte to *mbp, i.e. you don't see any in console log.
> 
> OK, anyway I am try this pacth.

KDB: debugger backends: ddb
KDB: current backend: ddb
SMAP type=01 base=0000000000000000 len=0000000000099c00
SMAP type=02 base=0000000000099c00 len=0000000000006400
SMAP type=02 base=00000000000e0000 len=0000000000020000
SMAP type=01 base=0000000000100000 len=000000007906b000
SMAP type=02 base=000000007916b000 len=0000000000936000
SMAP type=04 base=0000000079aa1000 len=0000000000509000
SMAP type=02 base=0000000079faa000 len=0000000002056000
SMAP type=01 base=0000000100000000 len=0000001f80000000
SMAP type=02 base=000000007c000000 len=0000000014000000
SMAP type=02 base=00000000fed1c000 len=0000000000029000
SMAP type=02 base=00000000ff000000 len=0000000001000000
XXX1
YYY1
ZZZ1