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6cf07a8cc8
kernel_optimize_test/arch/ia64/mm
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Peter Chubb 6cf07a8cc8 [IA64] Fix nasty VMLPT problem... 
I've solved the problem I was having with the simulator and not
booting Debian.

The problem is that the number of bits for the virtual linear array
short-format VHPT (Virtually mapped linear page table, VMLPT for
short) is being tested incorrectly. 

There are two problems:
      1. The PAL call that should tell the kernel the size of the
      virtual address space isn't implemented for the simulator, so
      the kernel uses the default 50.  This is addressed separately
      in dc90e95f31

      2.  In arch/ia64/mm/init.c there's code to calcualte the size
      of the VMLPT based on the number of implemented virtual address
      bits and the page size.  It checks to see if the VMLPT base
      address overlaps the top of the mapped region, but this check
      doesn't allow for the address space hole, and in fact will
      never trigger.

Here's an alternative test and panic, that I think is more accurate.

Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-08-31 08:35:22 -07:00
..
contig.c [IA64] Percpu quicklist for combined allocator for pgd/pmd/pte. 2005-04-25 13:13:16 -07:00
discontig.c [IA64] fix generic/up builds 2005-07-06 18:18:10 -07:00
extable.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fault.c [PATCH] Kprobes/IA64: kdebug die notification mechanism 2005-06-23 09:45:22 -07:00
hugetlbpage.c [PATCH] Hugepage consolidation 2005-06-21 18:46:15 -07:00
init.c [IA64] Fix nasty VMLPT problem... 2005-08-31 08:35:22 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
numa.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tlb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00