svn commit: r304187 - in head: . share/man/man4 sys/conf sys/dev/mcd sys/modules sys/modules/mcd

[Julian Elischer]

On 16/08/2016 4:54 AM, John Baldwin wrote:
> On Monday, August 15, 2016 08:38:02 PM John Baldwin wrote:
>> Author: jhb
>> Date: Mon Aug 15 20:38:02 2016
>> New Revision: 304187
>> URL: https://svnweb.freebsd.org/changeset/base/304187
>>
>> Log:
>>    Remove the mcd(4) driver for Mitsumi CD-ROM players.
>>    
>>    This is a driver for a pre-ATAPI ISA CD-ROM adapter.  As noted in
>>    the manpage, this driver is only useful as a backend to cdcontrol to
>>    play audio CDs since it doesn't use DMA, so its data performance is
>>    "abysmal" (and that was true in the mid 90's).
> No one stepped up to test patches for it either when I last posted patches to
> convert it from timeout(9) to callout(9).  I have a few more drivers that are
> both very old and that people have no business using in 12 (think ISA
> adapters that don't do DMA and can't be used with pccard) that I will be
> removing over the next little while.  I brought up a list of drivers on arch@
> a couple of years ago and the conversation drifted off into the weeds about
> trimming GENERIC, etc.  No one objected to the specific drivers I listed
> though (and I got a few pleas of "please remove").  If someone shows up
> desperately clutching an ISA adapter they can always dig up the source from
> svn and deal with forward porting it for whatever API changes have happened
> since it was removed.

I would imagine any machine still holding one of these probably has 
not enough memory to run FreeBSD.

would we still run in 2MB?
>