Another ata and dma problem - maybe because INTEL

[Jan Sebosik]

Vinny Abello wrote:
> At 09:49 PM 7/7/2005, you wrote:
> 
>> Hi,
>>
>> i`m using freebsd releng_5 and got weird problem with AtA_DMA... I 
>> bought mobo with i865PE chipset and when I allow DMA transfer in BIOS 
>> for my TEAC cd-540E drive, freebsd fails to boot with: ATA_INTERRUPT 
>> was seen but timeout fired out with LBA=0.. I also tried applying a 
>> ATA mkIII with no luck(it tells me that ata_if.h is missing). When I 
>> remove teac from my system, it boots correctly. I tried also in 
>> loader.conf typing hw.ata.atapi_dma=0, but still the same...fails to 
>> boot. I`ve before this mobo with VIA kt333 chipset, and it allows me 
>> to set PIO4 for drive (with no problemo at freebsd boot)
>>
>> Any ideas or patches?
> 
> 
> Just out of curiosity, check to make sure you have the latest firmware 
> for the Teac drive. I recall encountering problems with a Teac CD-ROM 
> drive on a new motherboard with a fairly new chipset on the market (this 
> was a long time ago) until I updated the firmware in the drive. I 
> couldn't boot any OS off the drive, yet it worked fine on other 
> motherboards. It's worth a shot. You might have similar problems with 
> any OS on that motherboard and CD-ROM drive.
> 
> Vinny Abello
> Network Engineer
> Server Management
> vinny at tellurian.com
> (973)300-9211 x 125
> (973)940-6125 (Direct)
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> 
> Tellurian Networks - The Ultimate Internet Connection
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Hi,

I`ve my bios upgraded before 3 years to newest version (v3.0A). Maybe 
teac knows about it and doesn`t want to solve this kind of issues (no 
old drive support :( ). But why is hw.ata.atapi_dma unusable? If I set 
it at startup to 0, it means that I don`t want an DMA for atapi 
interface... but it`s always enabled. I tried booting SLAX and it goes 
well from my cdrom. Windows performs well too. Any ideas?

Jan Sebosik