mfs/mdconfig under RELENG_5: malloc vs swap-backed

Bernd Walter ticso at
Fri Jul 29 23:16:14 GMT 2005

On Fri, Jul 29, 2005 at 09:41:24PM +0400, Dmitry Morozovsky wrote:
> Dear colleagues,
> can anyone please point me why mdconfig method for tmpmfs  
> is malloc-backed instead of swap-backed, and it is hardcoded into rc.subr? 
> Are swap-backed file systems so inefficient? If no, why not move -M to 
> /etc/defaultc/rc.conf so admin can override this behaviour?

Diskless systems may not have swap - the default is required as is.
Don't know about beeing hardcoded.

B.Walter                   BWCT      
bernd at                                  info at

More information about the freebsd-hackers mailing list