RELENG_7: interrupt eating whole cpu core

[Dominic Fandrey]

David Wolfskill wrote:
> On Fri, Feb 08, 2008 at 03:23:33PM +0100, Dominic Fandrey wrote:
>> Carlos A. M. dos Santos wrote:
>>> On Feb 8, 2008 4:27 AM, Dominic Fandrey <kamikaze at bsdforen.de> wrote:
>>>> ...
>>>> I put the following into my rc.conf:
>>>> # Set mode for CD/DVD drive.
>>>> /sbin/atacontrol mode acd0 2>&1 | /usr/bin/grep PIO > /dev/null 2>&1 \
>>>>        && /sbin/atacontrol mode acd0 UDMA33
>>> Do not put this in rc.conf. It will be executed again each time a
>>> script in /etc/rc.d source rc.conf to obtain the configuration
>>> variables.
>> Hence the check, weather the drive is in PIO mode or not. The way I 
>> understand the rc(8) manual page, the same is true for rc.local.
>> ...
> 
> As I learned some years ago, rc.conf is for configuration
> variable-setting, not executable code.  Ref. (from rc.conf(5)):

Why care about correctly implementing a sloppy solution? I'd rather have a 
good solution correctly implemented. For me that means offering the 
possibility to tweak the ata mode for each device in the /boot/device.hints file.