Hi,Fixing the applications I can understand but the patch still seems necessary, to me, so the
The topic was discussed to death on linux-kernel.
Mark, you need to fix your applications and stop using /proc/ide/hd*/geometry
or/and HDIO_GET_GEO ioctl (which BTW your patch also affects).
Bartlomiej
On 8/3/05, Andre Hedrick <andre@xxxxxxxxxxxxx> wrote:
Did you read ATA-1 through ATA-7 to understand all the variations?
On Tue, 2 Aug 2005, Mark Bellon wrote:
The ATA specification tells large disk drives to return C/H/S data of-
16383/16/63 regardless of their actual size (other variations on this
return include 15 heads and/or 4092 cylinders). Unfortunately these CHS
data confuse the existing IDE code and cause it to report invalid
geometries in /proc when the disk runs in LBA mode.
The invalid geometries can cause failures in the partitioning tools;
partitioning may be impossible or illogical size limitations occur. This
also leads to various forms of human confusion.
I attach a patch that fixes this problem while strongly attempting to
not break any existing side effects and await any comments.
mark
Signed-off-by: Mark Bellon <mbellon@xxxxxxxxxx>
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