Re: [issue1158] Problems with a SATA DVD burner

[Hasso Tepper <hasso@xxxxxxxxx>]

There is no solution yet, but I think that I already understand what's 
going on. The problem is that the fix I committed int atapi-cam doesn't 
have any effect in case of SATA controller in AHCI (or RAID) mode, so 
switching IDE controller into IDE or legacy mode might help.

I still have two questions ...

* How non aligned DMA transfer reaches this level at all. Should higher 
  layers try to avoid this?
* Where and how requests should be padded to be aligned to 4 bytes (it's 
  required for SATA ATAPI only?)?


-- 
Hasso Tepper