Hello everyone,
I am forwarding to this list some information about a strange
behaviour that I am seeing with a SS20 under SparcLinux. Basically, this
is what is going on:
A SS20 sees 320mb and 192mb of RAM just fine but with a 256MB
configuration, Linux only sees 200MB (yes, 205000k) whereas Solaris sees
256MB. The SIMMS have been changed, the memory slots tried alternatively
but with 8*32mb I still get 200mb under RH5.1, RH5.2 and 2.2.5 from
UltraPenguin-1.1.9. Any idea what's going on?
I'm including the technical details below.
,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,
Vincent S. Cojot, Computer Engineering. STEP project. _.,-*~'`^`'~*-,._.,-*~
Ecole Polytechnique de Montreal, Comite Micro-Informatique. _.,-*~'`^`'~*-,.
Linux Xview/OpenLook resources page _.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'
http://step.polymtl.ca/~coyote _.,-*~'`^`'~*-,._ [EMAIL PROTECTED]
---------- Forwarded message ----------
Date: Tue, 20 Apr 1999 08:30:04 -0400 (EDT)
From: Vincent Cojot <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Missing memory on SS20?
Hello everyone,
I've noticed a strange behaviour. A SparcStation 20 was upgraded
from 192MB to 256MB at a friend's office. Amazingly, the PROM tests report
the memory is fine, Solaris sees all 256Mb ram but under RH5.1 the machine
sees this:
total used free shared buffers cached
Mem: 205352 18696 186656 14800 1860 9556
-/+ buffers/cache: 7280 198072
Swap: 130684 0 130684
-------------------------------------------------------------
>From [EMAIL PROTECTED] Fri Apr 23 15:09:46 1999
Date: Wed, 21 Apr 1999 07:32:50 -0400 (EDT)
From: Vincent Cojot <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Re: Missing memory on SS20?
On Tue, 20 Apr 1999, Vincent Cojot wrote:
Hello everyone,
here is more information. This really is a weird problem:
In a SS20, the memory SIMM slots look like this:
J0201 SIMM0
J0202 SIMM2
J0203 SIMM5
J0301 SIMM3
J0302 SIMM6
J0303 SIMM1
J0304 SIMM7 J0407 VSIMM0
J0305 SIMM4 J0406 VSIMM1
The machine was working fine at 192MB with this config:
32 MB SIMM0
32 MB SIMM2
32 MB SIMM5
32 MB SIMM3
32 MB SIMM6
32 MB SIMM1
----- SIMM7 ----- VSIMM0
----- SIMM4 ----- VSIMM1
This config gives:
Apr 15 21:17:11 thorbardin kernel: Memory: 189704k available (1044k kernel
code, 5108k data) [f0000000,fc000000]
Also the machine is reported to have worked fine before at 320MB with this
config:
32 MB SIMM0
64 MB SIMM2
64 MB SIMM5
64 MB SIMM3
64 MB SIMM6
32 MB SIMM1
----- SIMM7 ----- VSIMM0
----- SIMM4 ----- VSIMM1
This gave:
Feb 27 02:21:00 thorbardin kernel: Memory: 318732k available (1044k kernel
code, 7156k data) [e9000000,fd000000]
But when we try:
32 MB SIMM0
32 MB SIMM2
32 MB SIMM5
32 MB SIMM3
32 MB SIMM6
32 MB SIMM1
32 MB SIMM7 ----- VSIMM0
32 MB SIMM4 ----- VSIMM1
We get:
Apr 16 18:11:43 thorbardin kernel: Memory: 205304k available (1044k kernel
code, 6644k data) [ed000000,fd000000]
I was thinking something was wrong with the hardware so I tried these
configs:
32 MB SIMM0 32 MB SIMM0
32 MB SIMM2 32 MB SIMM2
32 MB SIMM5 ----- SIMM5
32 MB SIMM3 32 MB SIMM3
----- SIMM6 32 MB SIMM6
32 MB SIMM1 32 MB SIMM1
----- SIMM7 ----- VSIMM0 32 MB SIMM7 ----- VSIMM0
32 MB SIMM4 ----- VSIMM1 ----- SIMM4 ----- VSIMM1
Both configs gave a perfect 192MB:
Apr 15 21:17:11 thorbardin kernel: Memory: 189704k available (1044k kernel
code, 5108k data)
So I guess the memory connectors on the last two slots are fine. Also, All
SIMMS in the machine are SUN memory.
Also, I tried netbooting the tftpboot.img from RH5.2 (this machine is a
RH5.1 + patches) and the result was still 205304k.
>From [EMAIL PROTECTED] Fri Apr 23 15:09:36 1999
Date: Wed, 21 Apr 1999 17:34:16 -0400 (EDT)
From: Vincent Cojot <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Cc: Peter Jones <[EMAIL PROTECTED]>
Subject: Re: Missing memory on SS20?
On Wed, 21 Apr 1999, Peter Jones wrote:
Hi Peter,
Here is the result. 2.2.5 also sees 200MB ram. I had to write down
and paste by hand the "Testing 16 megs of memory" lines but I think they
are correct. Thanks,
Vincent
Here goes:
<#0> ok setenv auto-boot? false
auto-boot? = false
<#0> ok setenv diag-switch? true
diag-switch? = true
<#0> ok reset
Resetting ...
Available Memory 0x1f000000
Allocating SRMMU Context Table
Context Table allocated, Available Memory 0x1efc0000
Setting SRMMU Context Register
Context Table allocated, Available Memory 0x1efc0000
Setting SRMMU Context Table Pointer Register
RAMsize allocated, Available Memory 0x1efb0000
Allocating SRMMU Level 1 Table
Level 1 Table allocated, Available Memory 0x1efafc00
Mapping RAM @ 0xffef0000
RAM mapped, Available Memory 0x1efafa00
Mapping ROM @ 0xffd00000
ROM mapped, Available Memory 0x1efaf800
Mapping ROM @ 0x00000000
ROM mapped, Available Memory 0x1efaf000
ttya initialized
Cpu #0 TI,TMS390Z55
Cpu #1 Nothing there
Cpu #2 TI,TMS390Z55
Cpu #3 Nothing there
Probing Memory Bank #0 32 Megabytes of DRAM
Probing Memory Bank #1 32 Megabytes of DRAM
Probing Memory Bank #2 32 Megabytes of DRAM
Probing Memory Bank #3 32 Megabytes of DRAM
Probing Memory Bank #4 32 Megabytes of DRAM
Probing Memory Bank #5 32 Megabytes of DRAM
Probing Memory Bank #6 32 Megabytes of DRAM
Probing Memory Bank #7 32 Megabytes of DRAM
Probing /iommu@f,e0000000/sbus@f,e0001000 at f,0 espdma esp sd st ledma le SUNW,bpp
Probing /iommu@f,e0000000/sbus@f,e0001000 at e,0 SUNW,DBRIe
Probing /iommu@f,e0000000/sbus@f,e0001000 at 0,0 dma esp sd st lebuffer le
Probing /iommu@f,e0000000/sbus@f,e0001000 at 1,0 Nothing there
Probing /iommu@f,e0000000/sbus@f,e0001000 at 2,0 qec be
Probing /iommu@f,e0000000/sbus@f,e0001000 at 3,0 cgsix
Cpu #0 TI,TMS390Z55
Cpu #1 Nothing there
Cpu #2 TI,TMS390Z55
Cpu #3 Nothing there
Probing Memory Bank #0 32 Megabytes of DRAM
Probing Memory Bank #1 32 Megabytes of DRAM
Probing Memory Bank #2 32 Megabytes of DRAM
Probing Memory Bank #3 32 Megabytes of DRAM
Probing Memory Bank #4 32 Megabytes of DRAM
Probing Memory Bank #5 32 Megabytes of DRAM
Probing Memory Bank #6 32 Megabytes of DRAM
Probing Memory Bank #7 32 Megabytes of DRAM
Probing /iommu@f,e0000000/sbus@f,e0001000 at f,0 espdma esp sd st ledma le SUNW,bpp
Probing /iommu@f,e0000000/sbus@f,e0001000 at e,0 SUNW,DBRIe
Probing /iommu@f,e0000000/sbus@f,e0001000 at 0,0 dma esp sd st lebuffer le
Probing /iommu@f,e0000000/sbus@f,e0001000 at 1,0 Nothing there
Probing /iommu@f,e0000000/sbus@f,e0001000 at 2,0 qec be
Probing /iommu@f,e0000000/sbus@f,e0001000 at 3,0 cgsix
SPARCstation 20 MP (2 X SuperSPARC-II), No Keyboard
ROM Rev. 2.22, 256 MB memory installed, Serial #7861166.
Ethernet address 8:0:20:77:f3:ae, Host ID: 7277f3ae.
Testing 16 megs of memory at addr 1e000000
Testing 16 megs of memory at addr 1c000000
Testing 16 megs of memory at addr 1a000000
Testing 16 megs of memory at addr 18000000
Testing 16 megs of memory at addr 16000000
Testing 16 megs of memory at addr 14000000
Testing 16 megs of memory at addr 12000000
Testing 16 megs of memory at addr 10000000
Testing 16 megs of memory at addr e0000000
Testing 16 megs of memory at addr c0000000
Testing 16 megs of memory at addr a0000000
Testing 16 megs of memory at addr 8000000
Testing 16 megs of memory at addr 6000000
Testing 16 megs of memory at addr 4000000
Testing 16 megs of memory at addr 200000
Testing 16 megs of memory at addr 0
Type help for more information
<#0> ok boot net
Boot device: /iommu/sbus/ledma@f,400010/le@f,c00000 File and args:
Automatic network cable selection succeeded : Using TP Ethernet Interface
2bde00
Server IP address: 192.168.128.2
Client IP address: 192.168.128.128
TILO
PROMLIB: obio_ranges 5
Booting Linux...
PROMLIB: Sun Boot Prom Version 3 Revision 2
Linux version 2.2.5 ([EMAIL PROTECTED]) (gcc version egcs-2.90.29
980515 (egcs-1.0.3 release)) #1 Tue Apr 13 21:17:38 CEST 1999
ARCH: SUN4M
TYPE: Sun4m SparcStation10/20
Ethernet address: 8:0:20:77:f3:ae
Boot time fixup v1.6. 4/Mar/98 Jakub Jelinek ([EMAIL PROTECTED]). Patching
kernel for srmmu[TI Viking/MXCC]/iommu
[0]: v[f0000000,f1000000](1000000) p[00000000]
[1]: v[f1000000,f2000000](1000000) p[02000000]
[2]: v[f2000000,f3000000](1000000) p[04000000]
[3]: v[f3000000,f4000000](1000000) p[06000000]
[4]: v[f4000000,f5000000](1000000) p[08000000]
[5]: v[f5000000,f6000000](1000000) p[0a000000]
[6]: v[f6000000,f7000000](1000000) p[0c000000]
[7]: v[f7000000,f8000000](1000000) p[0e000000]
[8]: v[f8000000,f9000000](1000000) p[10000000]
[9]: v[f9000000,fa000000](1000000) p[12000000]
[10]: v[fa000000,fb000000](1000000) p[14000000]
[11]: v[fb000000,fc000000](1000000) p[16000000]
[12]: v[fc000000,fd000000](1000000) p[18000000]
Found CPU 0 <node=ffd6f150,mid=8>
Found CPU 1 <node=ffd6f510,mid=10>
Found 2 CPU prom device tree node(s).
Power off control detected.
Calibrating delay loop... 74.75 BogoMIPS
Memory: 206040k available (1108k kernel code, 5720k data, 124k init)
[ed000000,fd000000]
Welcome to UltraPenguin Linux
+--------------------+ UltraPenguin Linux +---------------------+
[SNIP]
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