CONFIG_HIGHMEM64G=y for x86_64 SMP kernels

[Ed Hill]

On Tue, 2004-08-31 at 10:53, Alan Cox wrote:
> On Tue, Aug 31, 2004 at 10:42:14AM -0400, Ed Hill wrote:
> > I guess it was just a coincidence that some of the kernels worked with
> > mem=12G and others didn't.  I've moved the machine to a new location and
> > now *none* of the kernels I have (neither mine nor the Fedora ones) will
> > boot with "mem=12G".  The best I can get to work is "mem=3950M".
> 
> If you don't specify mem= does it find all your RAM. ALso what chipset ?


Hi folks,

Since the K8D_Master-F MB would no longer POST, we swapped in a Tyan
2885 with the below HW.  The good news is that we're not having any
memory recognition problems.  The bad news is that we now have an
annoying but otherwise harmless boot situation which is:

  - the initial boot always fails very early in the boot process
      and causes a system reset
  - a warm reboot commences
  - this second attempt (and any further warm reboots) work just 
      fine
  - any complete power-down will cause the first boot attempt 
      to fail

And I've seen this with both my own kernels (built from the FC2 SRPMS)
and the following FC2 kernels:

title Fedora Core (2.6.8-1.533.edhillsmp)
        root (hd0,0)
        kernel /boot/vmlinuz-2.6.8-1.533.edhillsmp ro root=LABEL=/
        initrd /boot/initrd-2.6.8-1.533.edhillsmp.img
title Fedora Core (2.6.7-1.515smp)
        root (hd0,0)
        kernel /boot/vmlinuz-2.6.7-1.515smp ro root=LABEL=/
        initrd /boot/initrd-2.6.7-1.515smp.img
title Fedora Core (2.6.6-1.435.2.3smp)
        root (hd0,0)
        kernel /boot/vmlinuz-2.6.6-1.435.2.3smp ro root=LABEL=/
        initrd /boot/initrd-2.6.6-1.435.2.3smp.img


Any ideas what may be causing these first boots to fail?

Ed


$ uname -a
Linux XXX 2.6.8-1.533.edhillsmp #1 SMP Mon Aug 30 23:18:09 EDT 2004
x86_64 x86_64 x86_64 GNU/Linux

$ /sbin/lspci
00:06.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8111 PCI (rev 07)
00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-8111 LPC (rev 05)
00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-8111 IDE (rev
03)
00:07.2 SMBus: Advanced Micro Devices [AMD] AMD-8111 SMBus 2.0 (rev 02)
00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-8111 ACPI (rev 05)
00:07.5 Multimedia audio controller: Advanced Micro Devices [AMD]
AMD-8111 AC97 Audio (rev 03)
00:0a.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8131 PCI-X Bridge
(rev 12)
00:0a.1 PIC: Advanced Micro Devices [AMD] AMD-8131 PCI-X APIC (rev 01)
00:0b.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8131 PCI-X Bridge
(rev 12)
00:0b.1 PIC: Advanced Micro Devices [AMD] AMD-8131 PCI-X APIC (rev 01)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:19.0 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:19.1 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:19.2 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
00:19.3 Host bridge: Advanced Micro Devices [AMD] K8 NorthBridge
02:07.0 RAID bus controller: 3ware Inc 3ware ATA-RAID
02:09.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5703X
Gigabit Ethernet (rev 02)
03:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-8111 USB (rev
0b)
03:00.1 USB Controller: Advanced Micro Devices [AMD] AMD-8111 USB (rev
0b)
03:0b.0 Unknown mass storage controller: Silicon Image, Inc. (formerly
CMD Technology Inc) Silicon Image SiI 3114 SATARaid Controller (rev 02)
03:0c.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A
IEEE-1394a-2000 Controller (PHY/Link)
04:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-8151 System
Controller (rev 13)
04:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-8151 AGP Bridge
(rev 13)
05:00.0 VGA compatible controller: nVidia Corporation NV28GL [Quadro4
980 XGL] (rev a1)



-- 
Edward H. Hill III, PhD
office:  MIT Dept. of EAPS;  Rm 54-1424;  77 Massachusetts Ave.
             Cambridge, MA 02139-4307
emails:  eh3 at mit.edu                ed at eh3.com
URLs:    http://web.mit.edu/eh3/    http://eh3.com/
phone:   617-253-0098
fax:     617-253-4464