Re: [PATCH]: Sanity checking for drives that claim to be LBA-48, but aren't!

[Eric W. Biederman]

James Finnie <[e-mail]> writes:

> The kernel sees this bit set, tries to use LBA-48 commands, and the drive
> errors, complaining that it doesn't understand!  Meaning this drive is
> unusable with the >=2.4.19 kernels.  I think at least one other person has
> reported something very similar, IIRC with a very old Maxtor IDE drive.
> 
> Here is a patch that does some basic sanity checking.  If the drive has an
> lba_capacity_2==0, and has the bit set claiming to be LBA-48, it ignores
> this claim.
> 
There are also a set of bits that reports which revs of the ATA standard
a drive complies with.  Should we check that one as well?  

Eric