my problem using iBook G4

[Nathan Whitehorn]

Nathan Whitehorn wrote:
> Weongyo Jeong wrote:
>> Hello,
>>
>> I have a iBook G4 laptop but it has a problem when booting like as
>> follows:
>>
>>     http://weongyo.org/project/freebsd/images/20081114.jpg
>>
>> My booting steps are:
>>
>>     1. press <option>+<apple>+O+F
>>     2. 0 > boot cd:,\boot\loader hd:7
>>     3. then a panic during booting progress
>>
>> There's no problem to boot if I set `OK set hw.ata.atapi_dma=0'. Is it a
>> known issue?
> 
> Well, Marcel has seen something similar with his CD drive, but I was 
> hoping it was limited to his machine. If you are in a situation where 
> you can easily apply patches, could you try the attached one and report 
> what it prints for the firmware timing register? Marcel, could you try 
> this too?

Naturally, I forgot the patch. It lives at 
http://people.freebsd.org/~nwhitehorn/ata.debug.diff, and should be 
applied to ata_kauai.c. Thanks!
-Nathan