On 2/11/2011 1:25 PM, Alan Cox wrote: >> When? Is there any specific case you can think of? > > Think about a raid volume where it is full disk and then the magic > autolocking crap guesses wrong, the volume goes partly inaccessible while > the box is running. Nasty mess. So a whole disk raid volume that was built with a patched kernel that always unlocked and therefore invaded the HPA gets upgraded and now the array won't activate. So now we have the intersection of two rare configurations ( most people use partitions rather than the whole disk ), plus an upgrade. Valid, but quite rare, and of course, they would get the same problem if they ran the unpatched Linus kernel right now. Seems to me this rare failure is the fault of using the patched kernel and invading the HPA in the first place. So you either leave the kernel as it is today and have this one problem, or you patch it to always unlock, and get several other problems. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
