Yes, this patch forces the ATA emulation mode, which is slower than
AHCI. It's like buying the latest nVidia graphics card, and using it
with the default VESA driver.
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[MacBookPro 7,1]mcp89 sata link reset fails, no disks detected
https://bugs.launchpad.net/bugs/576601
You received this bug not
@Fransisco: Yes, that's what they said at bugzilla.kernel.org. Thanks
for copying and pasting it. But this is not really true. NCQ (Native
Command Queuing) is for putting the commands into the appropriate order,
so that the disk doesn't have to turn around so many times. SSD's don't
have disks, so
I measured the read speeds on Macbook Pro 7,1 that has a Kingston SSD.
OSX: 198 Mbyte/s
patched Ubuntu: 8.9 Mbyte/s
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[MacBookPro 7,1]mcp89 sata link reset fails, no disks detected
https://bugs.launchpad.net/bugs/576601
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