Kernel Parameters

From: Johan Hartzenberg (jhartzen@csc.com)
Date: Thu Aug 15 2002 - 06:47:30 EDT

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Hi,

I think I saw a post once on how to view and/or change kernel parameters
using kdb, while the OS is running.

Is this safe?
Is there a list of parameters for which this is possible?

How hard would it be to write a little script that does the following:

Prompt for Kernel parameter name
Display Current value
Prompt for new parameter
 - or press Ctrl-C to make no change
Set new value into kernel

How hard would it be to build sense-checking into a script for this.

How about parameters in other modules?

In particular these parameters (ex /etc/system)

set sd:sd_io_time=0x3c
set sd:sd_max_throttle=8

Any comments/ideas?

Thanx,
  _Johan
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