Re: Cannot load latest 2.6.32.10 kernel on AMD quad-core

[Gerry Reno <greno@verizon.net>]

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On 04/25/2010 10:10 PM, Mike Viau wrote:
> Sun, 25 Apr 2010 20:49:38 -0400 <greno@verizon.net> wrote:
>
> On 04/25/2010 07:18 PM, Mike Viau wrote:
>
>     > Sun, 25 Apr 2010 09:10:11 -0700 <bderzhavets@yahoo.com>
>     <mailto:bderzhavets@yahoo.com> wrote:
>
>     >>But besides that, the output from the kernel over ttyUSB0 still doesn't look right.  You should be able to get some kernel output I would think.
>
>     >Yes, i have COM1 on both boards. No problems.
>
>     >Boris.
>
>     Just to clarify, do you really use a ttyUSB0 (via an usb to serial
>     adapter) and it works on you kernel command line to log messages
>     or do just use your ttyUSB serial port (in dom0 for example) to
>     console into your Linux machine?
>
>     Thanks.
>
>     -M
>
>
>       Not sure who you're addressing, but yes I have a USB-Serial 
> adapter and ttyUSB0 I have put on the kernel command line, BUT it 
> isn't working very well.  All it shows in minicom right now is
>       AT+GCAP
>       AT+GCAP
>       AT+GCAP
>       when the system boots up.
>
> Not sure what the AT+GCAP messages are all about, but it may or may 
> not have to do with modem commands. See 
> http://http://en.wikipedia.org/wiki/Hayes_command_set 
> <http://http//en.wikipedia.org/wiki/Hayes_command_set>
>
> Has anyone ever successfully used a USB-Serial adapter and ttyUSB0 to 
> work on the kernel command line to get boot messages?
>
> It seems to go against what the wiki @ 
> http://wiki.xensource.com/xenwiki/XenSerialConsole
>
> [quote]
> USB serial adapter doesn't work for the computer running Xen (*), but 
> it works for the other computer that is only used to view and log the 
> serial console.
> [/quote]
>
>
> -M
That's referring to the Xen kernel not the linux kernel.  At some point 
USB-Serial may have to be supported by Linux kernel as well as Xen 
hypervisor kernel if 16550 cards get scarce.

-Gerry


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