Mark Lord wrote:
I can prepare a patch, but only with a lot of guidance. I can test
& debug, I'm highly motivated just right now ...
If you've got a nice repeatable problem please try using the libata
driver. That handles the error paths differently and doesn't try a
FIFO
drain which might matter in this case I guess.
FIFO drain for DMA commands?
Welcome to the old IDE layer which I am so glad I left behind 8)
ide_ata_error will try and do a PIO flush regardless of the command type
if DRQ_STAT is asserted. See ide_dma_intr -> ide_error -> ...
Indeed... but the thing is we don't know what's asserted in this
case -- remember, it's reading the status register that locks
everything up...
Exactly. And IORDY shouldn't really apply there,
unless some nitwit standards person wrote it into a spec..
Wrote what? IORDY throttling does *apply* to both data and non-data
register accesses, of course.
-ml
MBR, Sergei
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