> Testing with multi-terabyte disks shows that HDIO_GETGEO sometimes > returns heads=0. This causes parted to die with a Floating Point > Exception, among other possible effects. > > The problem occurs because several routines in scsicam_bios_param cast > sector_t capacity to unsigned long. > > The attached patch avoids this, by checking first to see if > the capacity > exceeds the maximum allowed values for cylinder/sector/head > (65535*63*255). If so, just return those values right away. I brought up this issue a few months ago (http://marc.theaimsgroup.com/?t=110383771000001&r=1&w=2), but no one replied. There are actually many other drivers with custom bios_param() routines that should be reviewed as well. Anthony J. Battersby Cybernetics - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
