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Old 04-26-2011, 12:24 PM
Steve Clark
 
Default RHEL 6/CentOS

Hello,



Anybody know the reason RedHat decided not to support the

VIA Eden Processor?



cat /proc/cpuinfo

processor****** : 0

vendor_id****** : CentaurHauls

cpu family***** : 6

model********** : 13

model name***** : VIA Eden Processor* 500MHz



I am testing, (using ayplus kernel) and get the following during
bootup:

Linux version 2.6.32-71.24.1.el6.centos.ayplus.1.i686
(build@6beta32) (gcc versi

on 4.4.4 20100630 (Red Hat 4.4.4-10) (GCC) ) #1 SMP Fri Apr 8
17:23:21 PDT 2011

KERNEL supported cpus:

* Intel GenuineIntel

* AMD AuthenticAMD

* NSC Geode by NSC

* Cyrix CyrixInstead

* Centaur CentaurHauls

* Transmeta GenuineTMx86

* Transmeta TransmetaCPU

* UMC UMC UMC UMC

UNSUPPORTED HARDWARE DEVICE: Centaur Processor

------------[ cut here ]------------

WARNING: at kernel/unsupported.c:13
mark_hardware_unsupported+0x37/0x40() (Not t

ainted)

Your hardware is unsupported.* Please do not report bugs, panics,
oopses, etc.,

on this hardware.

Modules linked in:

Pid: 0, comm: swapper Not tainted
2.6.32-71.24.1.el6.centos.ayplus.1.i686 #1

Call Trace:

*[<c0450201>] ? warn_slowpath_common+0x81/0xc0

*[<c0477e67>] ? mark_hardware_unsupported+0x37/0x40

*[<c0477e67>] ? mark_hardware_unsupported+0x37/0x40

*[<c0450293>] ? warn_slowpath_fmt_taint+0x33/0x40

*[<c0477e67>] ? mark_hardware_unsupported+0x37/0x40

*[<c08056eb>] ? early_init_centaur+0xd/0x2d

*[<c0a49835>] ? early_cpu_init+0x11a/0x13e

*[<c0a453b3>] ? setup_arch+0x38/0xb90

*[<c0450d3e>] ? vprintk+0x1ae/0x490

*[<c080ba2a>] ? printk+0x17/0x1d

*[<c0a5a4ee>] ? cgroup_init_subsys+0xcf/0xdb

*[<c0a406da>] ? start_kernel+0xca/0x3a4

---[ end trace a7919e7f17c0a725 ]---

Disabling lock debugging due to kernel taint







I traced it down to this code, which is not in the standard
kernel.org kernel-2.6.32.36:

from kernel-2.6.32.36

static void __cpuinit
early_init_centaur(struct cpuinfo_x86 *c)

{

*** switch (c->x86) {





from 2.6.32-71.24.1.el6.ayplus

arch/x86/kernel/cpu/centaur.c



static void __cpuinit early_init_centaur(struct cpuinfo_x86 *c)

{

******* mark_hardware_unsupported("Centaur Processor");**
<<<<<<<<<<

******* switch (c->x86) {











Thanks,






--

Stephen*Clark

NetWolves

Sr.*Software*Engineer*III

Phone:*813-579-3200

Fax:*813-882-0209

Email:*steve.clark@netwolves.com

http://www.netwolves.com




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Old 04-26-2011, 12:43 PM
"Brunner, Brian T."
 
Default RHEL 6/CentOS

centos-bounces@centos.org wrote:
> Hello,
>
> Anybody know the reason RedHat decided not to support the
> VIA Eden Processor?

Possibly ... Does that processor have PAE? The non-PAE kernel was
dropped, the current 'normal' kernel requires a PAE-capable processor.


> UNSUPPORTED HARDWARE DEVICE: Centaur Processor
> ------------[ cut here ]------------


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