Testing CAM wrapper for ata(4) controller drivers

[Alexander Motin]

Tom Uffner wrote:
> this change breaks my Promise SATA card

Are you sure that it was this change?

> atapci0: <Promise PDC20771 SATA300 controller> port
> 0xdc00-0xdc7f,0xd800-0xd8ff mem
> 0xfeaff000-0xfeafffff,0xfeac0000-0xfeadffff irq 23 at device 11.0 on pci2
> 
> kernels from after the commit on 12/6 are unable to mount my drives.
> i get (from memory, since i can't even get to single user mode)
> WARNING - READ_DMA UDMA ICRC error
> followed by lots of SETFEATURE foo errors then a READ_DMA timeout
> followed by a bus reset and the cycle repeats...
> 
> before this commit it worked fine.

How long ago?

> this is in the legacy mode. i am building a kernel with "options ATA_CAM"
> now

OK. Tell me if there any difference.

Send me please full _verbose_ dmesg with original kernel and if possible
with new. If you can't get full with new, enable verbose messages and
make screenshots of drives detection and first errors.

-- 
Alexander Motin