[issue1158] Problems with a SATA DVD burner

[Matthew Dillon]

:To clarify the state of the bug ...
:
:The issue with SATA CD/DVD devices causing interrupt storms etc are solved 
:in both master and 2.0 branch. There are still issue with recording 
:though:
:
:acd0: FAILURE - READ_BUFFER ILLEGAL REQUEST asc=0x24 ascq=0x00
:acd0: FAILURE - READ_BUFFER ILLEGAL 
:ata4: FAILURE - non aligned DMA transfer 
:acd0: setting up DMA failed
:
:I think that it's not specific to SATA CD/DVD writers though. And I 
:thought Matt already fixed the issues with non aligned DMA transfers? Or 
:was it in different path?

    I did for accesses via physical devices.

    What action was performed to cause this particular error?  I do have
    a SATA CD/DVD I can test with.

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>

:I don't have time and knowledge to work on this, but I think that it's 
:showstopper for 2.2. Any takers?
:
:-- 
:Hasso Tepper