Re: [Linux-ia64] kernel update (relative to 2.4.0-test11)

David Mosberger
2000-12-07T21:57:18Z

David> CAVEAT: the kernel now relies on PAL_VM_SUMMARY returning the
David> correct value for IMPL_VA_MSB. If you have old firmware,
David> this may cause the kernel to fail to boot. To find out, look
David> for the message of the form:

David> CPU 0: XX virtual and YY physical address bits

David> if XX is anything other than 50, you need to upgrade your
David> firmware.

Make that 51 (IMPL_VA_MSB is 50 on Itanium, i.e., the number of
virtual address bits is 51; some day I'll get this right... ;-)

Thanks to Matt for pointing this out and sorry for the confusion.

You can check whether your firmware is recent enough by doing:

fgrep Virtual /proc/pal/cpu0/vm_info

If it displays "51 bits", you're in fine shape.

--david