Re: Disk errors on PowerBook 180

Götz Hoffart <[email protected]> Sat, 9 May 2026 18:16:07 +0200
Newsgroups gmane.os.netbsd.ports.mac68k
Message-ID <[email protected]>
On 5/9/26 18:03, Nat Sloss wrote:

> The problem is that the standard SBC kernels for mac68k will use PDMA for
> reading/writing to hdd and Powerbooks need either SBC_INTR flag 0x2 added to
> sbc* in there kernel config or to use the slower polled mode.
> 
> Many improvents were made in NetBSD-11 for Powerbook 1xx machines.  (Audio
> recording/playback/ Battery montoring via envsys/ Screen brightness control
> support and DaynaPORT network suppot which works great with the bluescsi v2
> and similar or PiSCSI/rascsi).
> 
> There were also changes to sbc in particular setting the right and faster
> default for scsi transfers on the PB 1xx and better handing of aborting
> transfers which is need for the dse(4) daynaPORT driver as it only works with
> polled scsi transfers.
> 
> 
> Not sure if all of these changes made it into -11 but are definately in -
> current if you use a kernel from one of the daily builds it will work great.(...)

As someone who occasionally boots NetBSD 1.5.1 (ahem) on a Mac SE/30 (68 
MB RAM), I should definitely try this out. Thanks for your report and 
the contributors of these improvements!

Regards
Götz