Fedora 17 cannot boot on my pc...

[Georgios Petasis]

Στις 2/8/2012 14:28, ο/η Heinz Diehl έγραψε:
> On 02.08.2012, Georgios Petasis wrote:
>
>> So, this is a processor bug? I would expect that Linux should detect these
>> automatically...
> If I remember all correctly, there were two mainly independend issues
> with C1E in Linux, one which is processor-related, and one
> BIOS-related. Processor-bugs are adressed by loading fixes via
> microcode updates at boot-time. Check your dmesg output if this is the
> case with your CPU. There should be something like that (laptop with i5 cpu):
>
> [root at wildsau ~]# dmesg | grep microcode
> microcode: CPU0 sig=0x20655, pf=0x10, revision=0x2
> microcode: CPU0 updated to revision 0x3, date = 2011-09-01
> microcode: CPU1 sig=0x20655, pf=0x10, revision=0x2
> microcode: CPU1 updated to revision 0x3, date = 2011-09-01
> microcode: CPU2 sig=0x20655, pf=0x10, revision=0x2
> microcode: CPU2 updated to revision 0x3, date = 2011-09-01
> microcode: CPU3 sig=0x20655, pf=0x10, revision=0x2
> microcode: CPU3 updated to revision 0x3, date = 2011-09-01
> microcode: Microcode Update Driver: v2.00 <tigran at aivazian.fsnet.co.uk>, Peter Oruba
>
>> So, my AMD 920 cpu is not only slow, it has also some errata incompatible
>> with Fedora. Nice :D
> Nearly all CPUs have errata :-)
>
> The problem you encounter is not a Fedora one, it's most likely a
> BIOS-problem, or the E400 routines in the kernel doesn't get triggered
> by your hardware. It's impossible for me to see where the problem
> finally originates in your case. The AMD people are generally cute ones and really
> interested in such thing, so if you care to dig into this further, you
> could consider mailing Borislav Petkov directly
> (borislav.petkov at amd.com).
>
> If I remember that right, there was a fix pending around april/may
> 2011 for this, and a quick look into process.c shows that the E400
> case is taken care of by the kernel. Look into your dmesg output and
> boot.log (and other logfiles: /var/log/messages etc.) for "AMD E400
> aware idle routine" or something similar/related.
>
I am glad that the motherboard maker (Gigabyte) found a nice solution 
for me. This is their reply:

Dear George Petasis,

Thank you for your kindly mail. Since all GIGABYTE MBs can fully support 
Windows OS without any problem. We suggest you can back up your data and 
reintall genuine Windows OS and then you can install supporting driver 
to run your system. However, your valuable feedback regarding to Linux 
will be noted to improve our future hardware design.

If you still have any further question or suggestion about our 
products/service, please do not hesitate to contact us. We will try our 
best to help you resolve the problem ASAP.

Best Regards,
GIGABYTE

Actually their answer to linux not booting without 
acpi_skip_timer_override, is "install windows".
But after backing up your data :D

Regards,

George