memtest86+ and lshw show wrong data about AMD Phenom II CPU

[LAZA]

On screen appears:

memtest86+ 2.11
Athlon 64 (0.13) 2612 MHz
L1 Cache: 64 K
L2 Cache: 512 K
L3 Cache: NONE
Memory: 8191 M
Chipset: AMD K8 (ECC: Disabled)

Mainboard: Gigabyte GA-MA790GP-UD4H F1 (now it's F3a)
RAM: 2 x 2 x 2048 MB KingstonHyperX 1066 MHz CL5
CPU: AMD Phenom II 810; 2.6 GHz; 95 W; AM3

http://products.amd.com/de-de/DesktopCPUDetail.aspx?id=526&f1=AMD+Phenom%E2%84%A2+II+X4&f2=&f3=&f4=512&f5=&f6=C2&f7=45nm+SOI&f8=&f9=&f10=False&f11=&f12=True

[Simon Déziel (sdeziel)]

Your CPU is fairly recent. Currently Ubuntu (even the development version) is still using memtest86+ version 2.11.

If version 4.00 (ISO available here http://www.memtest.org/download/4.00/memtest86+-4.00.iso.gz) shows the right data about your CPU you should add a comment in this bug https://bugs.launchpad.net/ubuntu/+source/memtest86+/+bug/435575

In the changelog of version 4.00 you have this :

- Added detection for AMD "Magny-Cours" CPU
- Corrected detection for AMD 45nm K10 CPU

[Burt P. (pburt0)]

lshw also shows incorrect information about the AMD Phenom II cache:

Phenom II caches:
L1 64k data, 64k instruction
L2 512K per core
L3 6M shared

Output of lshw:
--snip--
    *-cpu:0
          description: CPU
          product: AMD Phenom(tm) II X2 550 Processor
          vendor: Advanced Micro Devices [AMD]
          physical id: 4
          bus info: cpu@0
          version: 15.4.2
          slot: Socket M2
          size: 800MHz
          capacity: 3200MHz
          width: 64 bits
          clock: 200MHz
          capabilities: boot fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp x86-64 3dnowext 3dnow constant_tsc nonstop_tsc extd_apicid pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt cpufreq
        *-cache:0
             description: L1 cache
             physical id: a
             slot: Internal Cache
             size: 128KiB
             capacity: 128KiB
             capabilities: synchronous internal write-back
        *-cache:1
             description: L3 cache
             physical id: c
             slot: External Cache
             size: 512KiB
             capacity: 512KiB
             capabilities: synchronous internal write-back
     *-cache
          description: L1 cache
          physical id: b
          slot: Internal Cache
          size: 128KiB
          capacity: 128KiB
          capabilities: synchronous internal write-back
--snip--

Information in the /sys is correct:
:~$ cd /sys/devices/system/cpu/cpu0/cache/; cat */type */size */level
Data
Instruction
Unified
Unified
64K
64K
512K
6144K
1
1
2
3

[LAZA (laza74)]

Could be closed(?) cause of the corrected, updated version of memtest+in Lucid:

https://bugs.launchpad.net/ubuntu/+source/memtest86+/+bug/435575

Thanks in advance!

[Burt P. (pburt0)]

The problem with lshw is not fixed in 10.04.

[Burt P. (pburt0)]

http://ezix.org/project/ticket/515

[Savvas Radevic (medigeek)]

perhaps fixed in 10.10?