Re: /var/log/messages and some errors

[Rick Stevens <rstevens vitalstream com>]

Waldher, Travis R wrote:
> I did a search, a LOT of people asked this question, according to
> google, no one has ever answered it.
>
> What is this error I am getting and how do I get rid of it?
>
> Sep 26 10:43:52 cfs3 kernel: mtrr: Serverworks LE detected.
> Write-combining disabled.
> Sep 26 10:43:52 cfs3 kernel: mtrr: your processor doesn't support
> write-combining

Write-combining is a mechanism whereby the processor collects a number
of writes to its cache into a batch and does the write to non-cache
RAM at one time, rather than doing the write-throughs one at a time.
If you're really compute bound, this can help performance.  For the
vast majority of people, it makes no difference.

> While I am here... What is this one too?
>
> Sep 26 10:43:30 cfs3 modprobe: modprobe: Can't locate module
> block-major-105
> Sep 26 10:43:30 cfs3 modprobe: modprobe: Can't locate module
> block-major-106
> Sep 26 10:43:30 cfs3 modprobe: modprobe: Can't locate module
> block-major-107
> Sep 26 10:43:30 cfs3 modprobe: modprobe: Can't locate module
> block-major-108
> Sep 26 10:43:30 cfs3 modprobe: modprobe: Can't locate module
> block-major-109
> Sep 26 10:43:30 cfs3 modprobe: modprobe: Can't locate module
> block-major-110
> Sep 26 10:43:30 cfs3 modprobe: modprobe: Can't locate module
> block-major-111

Is this a Compaq, by any chance?  If so, those are the block major
numbers for the second through eighth Compaq Next Generation Drive Array
controller.

> (there are a LOT more of those, with different numbers as well.)

Block (and character) major numbers are in the kernel source code
documents (by default, /usr/src/linux/Documentation/devices.txt).
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- Rick Stevens, Senior Systems Engineer     rstevens vitalstream com -
- VitalStream, Inc.                       http://www.vitalstream.com -
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