Hypfer / Hypfer/i7z

i7z on Xeon E5-2620v2 - unknown CPU

Open
#80 0 comments 0 reactions 0 assignees View on GitHub
auto-migrated Priority-Medium Type-Defect
Dominant language
C
Stars
1
Forks
0
PR merge metrics
No merged PRs in 30d

Description

```
I may be slow in responding to issues till the end of June 2013.

Step 1. What steps will reproduce the problem?

Run i7z on a Xeon E5-2xxx v2 system.

Step 2. What version of the product are you using (the download version or
the svn
version and which one)?

i7z-0.27.2

Step 3. If this is an enhancement or suggestion, skip this step (except if
its related to a particular OS or architecture). On what operating system?
BTW is it a 32-bit or a 64-bit OS/Kernel?

Step 4. Do provide information if bug/enhancement is related to a
particular OS/Processor. Please provide any additional information below
(helpful will be platform
information like number and types of cpus, motherboard and a copy of
/proc/cpuinfo)

i7z DEBUG: i7z version: svn-r77-(20-Nov-2011)
i7z DEBUG: Found Intel Processor
i7z DEBUG: Stepping 4
i7z DEBUG: Model e
i7z DEBUG: Family 6
i7z DEBUG: Processor Type 0
i7z DEBUG: Extended Model 3
i7z DEBUG: msr = Model Specific Register
i7z DEBUG: detected a newer model of ivy bridge processor
i7z DEBUG: my coder doesn't know about it, can you send the following info to
him?
i7z DEBUG: model e, extended model 3, proc_family 6
i7z DEBUG: msr device files exist /dev/cpu/*/msr
i7z DEBUG: You have write permissions to msr device files

Step 5. If the program crashes. Can you also paste the
output of ls -lt /dev/cpu/*/msr?

Step 6. If the program crashed OR if this is for a new i7 chip. Can you
also run the following commands? They read various registers
and if those registers cannot be read the tool fails ungracefully. You will
have to sudo
each commmand and probably also do sudo modprobe msr (before running the
programs)

rdmsr 0x19c
rdmsr 0x1a2
rdmsr 0x38d
rdmsr 778
rdmsr 779
rdmsr 1020
rdmsr 1021

```

Original issue reported on code.google.com by `sklochko...@gmail.com` on 25 Dec 2013 at 7:10

Contributor guide

No contributing guide indexed for this repository

Research direction

Start by reproducing the report with i7z-0.27.2 on an Intel Xeon E5-2xxx v2 system and review the displayed processor-detection output. Inspect the CPU model handling around the reported family 6, model e, and extended model 3 values; use the listed rdmsr commands and /proc/cpuinfo data to verify the required register details. Done means the processor is recognized without the unknown-model warning.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
operating-systems, performance
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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