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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
