Re: spdmem fails to find all slots

[Paul Goyette <paul%whooppee.com@localhost>]

On Fri, 17 Apr 2009, Bernd Ernesti wrote:

> Hi,
>
> something seems to have changed in the last 6 weeks.
> A 5.99.7 kernel from around March 7th had this:
>
> spdmem0 at iic0 addr 0x50
> spdmem0: DDR2 SDRAM, data ECC, 1GB, 800MHz (PC2-6400)
> spdmem0: 14 rows, 10 cols, 2 ranks, 4 banks/chip, 2.50ns cycle time
> spdmem0: tAA-tRCD-tRP-tRAS: 5-5-5-16
> spdmem0: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
> spdmem1 at iic0 addr 0x51
> spdmem1: DDR2 SDRAM, data ECC, 1GB, 800MHz (PC2-6400)
> spdmem1: 14 rows, 10 cols, 2 ranks, 4 banks/chip, 2.50ns cycle time
> spdmem1: tAA-tRCD-tRP-tRAS: 5-5-5-16
> spdmem1: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
>
> But after updating to a 5.99.10 from around April the 5th I only
> get this (still happening with a current from today):
>
> spdmem0 at iic0 addr 0x51
> spdmem0: DDR2 SDRAM, data ECC, 1GB, 800MHz (PC2-6400)
> spdmem0: 14 rows, 10 cols, 2 ranks, 4 banks/chip, 2.50ns cycle time
> spdmem0: tAA-tRCD-tRP-tRAS: 5-5-5-16
> spdmem0: voltage
>
> Where did the spdmem0 at iic0 addr 0x50 go?

Did one of your DIMMs fail?

I just updated several of my machines to today's -current and I still 
have all of my spdmem's:

Machine 1
---------
spdmem0 at iic0 addr 0x50
spdmem0: DDR2 SDRAM, no parity or ECC, 2GB, 800MHz (PC2-6400)
spdmem0: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem0: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem0: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
spdmem1 at iic0 addr 0x51
spdmem1: DDR2 SDRAM, no parity or ECC, 2GB, 800MHz (PC2-6400)
spdmem1: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem1: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem1: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)

Machine 2
---------
spdmem0 at iic0 addr 0x50
spdmem0: DDR2 SDRAM, no parity or ECC, 2GB, 800MHz (PC2-6400)
spdmem0: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem0: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem0: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
spdmem1 at iic0 addr 0x51
spdmem1: DDR2 SDRAM, no parity or ECC, 2GB, 800MHz (PC2-6400)
spdmem1: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem1: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem1: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
spdmem2 at iic0 addr 0x52
spdmem2: DDR2 SDRAM, no parity or ECC, 2GB, 800MHz (PC2-6400)
spdmem2: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem2: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem2: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
spdmem3 at iic0 addr 0x53
spdmem3: DDR2 SDRAM, no parity or ECC, 2GB, 800MHz (PC2-6400)
spdmem3: 14 rows, 10 cols, 2 ranks, 8 banks/chip, 2.50ns cycle time
spdmem3: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem3: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)

Machine 3
---------
spdmem0 at iic0 addr 0x50
spdmem0: DDR2 SDRAM, no parity or ECC, 1GB, 800MHz (PC2-6400)
spdmem0: 14 rows, 10 cols, 2 ranks, 4 banks/chip, 2.50ns cycle time
spdmem0: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem0: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)
spdmem1 at iic0 addr 0x51
spdmem1: DDR2 SDRAM, no parity or ECC, 1GB, 800MHz (PC2-6400)
spdmem1: 14 rows, 10 cols, 2 ranks, 4 banks/chip, 2.50ns cycle time
spdmem1: tAA-tRCD-tRP-tRAS: 5-5-5-18
spdmem1: voltage SSTL 1.8V, refresh time 7.8us (self-refreshing)

Machine 4
---------
spdmem0 at iic0 addr 0x50
spdmem0: DDR3 SDRAM, no ECC, no temp-sensor, 2GB, 1067MHz (PC3-8533)
spdmem0: 11 rows, 13 cols, 8 log. banks, 2 phys. banks, 1.875ns cycle 
time
spdmem0: tAA-tRCD-tRP-tRAS: 7-7-7-20
spdmem1 at iic0 addr 0x51
spdmem1: DDR3 SDRAM, no ECC, no temp-sensor, 2GB, 1067MHz (PC3-8533)
spdmem1: 11 rows, 13 cols, 8 log. banks, 2 phys. banks, 1.875ns cycle 
time
spdmem1: tAA-tRCD-tRP-tRAS: 7-7-7-20




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