> When libata reports a MEDIUM_ERROR to us, we *know* it's non-recoverable,
> as the drive itself has already done internal retries (libata uses the
> "with retry" ATA opcodes for this).
This depends on the firmware. Some of the "raid firmware" drives don't
appear to do retries in firmware.
> But meanwhile, we still have the original issue too, where a single stray
> bad sector can blow a system out of the water, because the mid-layer
> currently aborts everything after it from a large merged request.
>
> Thus the original patch from this thread. :)
Agreed
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