svn commit: r244112 - head/sys/kern

[Alfred Perlstein]

Your use case (small swap & large ram) is exactly why I would like to try this. 

Do you object?

Sent from my iPhone

On Dec 15, 2012, at 1:03 PM, Pawel Jakub Dawidek <pjd at FreeBSD.org> wrote:

> On Wed, Dec 12, 2012 at 04:53:48PM -0800, Alfred Perlstein wrote:
>> Like what if I do gzipp'd kernel dumps next? (on my todo list)  How many 
>> people will complain that "gzip is too dangerous in kernel context foo 
>> foo!!!!"
>> 
>> Not sure, I guess I'll find out?
> 
> Well... :) savecore(8) has an option to compress the dumps. The only use
> case for compressing-while-dumping I see is small swap/dump partition.
> I'm not against this change, but I would not use it myself. When you are
> dumping your kernel is in undefined state, so the less code you execute
> in that state the higher chances your dump will succeed. I much prefer
> to either compress the dumps with savecore(8) or use ZFS dataset with
> compression enabled for /var/crash/.
> 
> -- 
> Pawel Jakub Dawidek                       http://www.wheelsystems.com
> FreeBSD committer                         http://www.FreeBSD.org
> Am I Evil? Yes, I Am!                     http://tupytaj.pl