Hi Andrew,
Andrew Morton wrote:
Martin MOKREJ__ <[email protected]> wrote:
I just tested 2.6.16-rc5 kernel on MSI 9136 dual Xeon server
motherboard with 16 GB of memory and the kernel detects only 8 GB of
RAM instead. 2.6.15 kernel detected properly 16 GB. I haven't tested
any kernel revisions in between these two, but could if you point me
in a specific direction. Attaching diff(1) output of dmesg(1) outputs.
Please Cc: me in replies. Thanks!
Martin
[boot-2.6.15_to_16-rc5.diff text/plain (12156 bytes)]
The diff is useful.
--- tmp/boot-2.6.15.txt 2006-03-07 11:45:48.015509048 +0100
+++ tmp/boot-2.6.16-rc5.txt 2006-03-07 11:45:48.029506920 +0100
@@ -1,4 +1,4 @@
-Linux version 2.6.15 (root@phylo) (gcc version 3.4.5 (Gentoo 3.4.5-r1, ssp-3.4.5-1.0, pie-8.7.9)) #1 SMP Mon Mar 6 20:20:06 MET 2006
+Linux version 2.6.16-rc5 (root@phylo) (gcc version 3.4.5 (Gentoo 3.4.5-r1, ssp-3.4.5-1.0, pie-8.7.9)) #1 SMP Mon Mar 6 19:58:24 MET 2006
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009a800 (usable)
BIOS-e820: 000000000009a800 - 00000000000a0000 (reserved)
@@ -12,16 +12,16 @@
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ff800000 - 00000000ffc00000 (reserved)
BIOS-e820: 00000000fffffc00 - 0000000100000000 (reserved)
- BIOS-e820: 0000000100000000 - 0000000430000000 (usable)
-16256MB HIGHMEM available.
+ BIOS-e820: 0000000100000000 - 0000000230000000 (usable)
+8064MB HIGHMEM available.
These numbers are what the BIOS is telling the kernel about your machine.
Was the BIOS changed?
No, it hasn't since we got the motherboard. Yes, it is 1.20 instead
of 1.50. The MSI web is such a crap I couldn't first of all get the
file at all and once found on a local reseller's page the zip file
contains no Changelog, so I have no clue what happened between 1.20
and 1.50 BIOS revision.
If not, you might need to wiggle those DIMMs or something.
It is really something else, 16GB can be seen under 2.6.15,
2.6.15-rc1 (if I remember right my previous kernel version).
I can reproduce just by booting with "wrong" kernel version.
Any other recommendation? Except flashing and praying?
I haven't touched the BIOS setting either, I worked completely remotely.
Martin
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