[CentOS] RHEL 6/CentOS

Steve Clark

sclark at netwolves.com
Tue Apr 26 12:24:21 UTC 2011


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 at 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 at netwolves.com
http://www.netwolves.com
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