Re: Working around bogus HPAs in libata
On 04/06/2010 11:28 AM, Ben Hutchings wrote:
> If a system vendor puts its own name or model numbers on the disks it
> ships then I think the BIOS or other platform firmware can reasonably
> assume that it 'owns' and can write to the HPA on a disk with the
> vendor's identification. (I wouldn't be at all surprised to find that
> some vendors take shortcuts though.)
I would be very surprised if no vendor took shortcuts. :-)
>> Ah... I see, but let's fix that up too. It could be worse to have
>> half working workaround than not working around at all. I'll update
>> the patch once the currently pending HPA updates are in.
> Oh, what are those?
The patch I posted is rolled up version which contained currently
pending HPA unlock on shrink patch.
> I want to apply some version of this fix in Debian soon so we can
> complete the transition to libata. I would very much appreciate it if
> you could answer whether or not the multiple 'capacity change' messages
> may indicate a problem.
Multiple messages are probably sd doing revalidation of the device. I
don't think it will cause any problem but I'll look into it later
today and let you know.