4bb9c5c021
Impact: fix false positive PAT warnings - also fix VirtalBox hang Use of vma->vm_pgoff to identify the pfnmaps that are fully mapped at mmap time is broken. vm_pgoff is set by generic mmap code even for cases where drivers are setting up the mappings at the fault time. The problem was originally reported here: http://marc.info/?l=linux-kernel&m=123383810628583&w=2 Change is_linear_pfn_mapping logic to overload VM_INSERTPAGE flag along with VM_PFNMAP to mean full PFNMAP setup at mmap time. Problem also tracked at: http://bugzilla.kernel.org/show_bug.cgi?id=12800 Reported-by: Thomas Hellstrom <thellstrom@vmware.com> Tested-by: Frans Pop <elendil@planet.nl> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha>@intel.com> Cc: Nick Piggin <npiggin@suse.de> Cc: "ebiederm@xmission.com" <ebiederm@xmission.com> Cc: <stable@kernel.org> # only for 2.6.29.1, not .28 LKML-Reference: <20090313004527.GA7176@linux-os.sc.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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.. | ||
dump_pagetables.c | ||
extable.c | ||
fault.c | ||
gup.c | ||
highmem_32.c | ||
hugetlbpage.c | ||
init_32.c | ||
init_64.c | ||
iomap_32.c | ||
ioremap.c | ||
k8topology_64.c | ||
kmmio.c | ||
Makefile | ||
memtest.c | ||
mmap.c | ||
mmio-mod.c | ||
numa_32.c | ||
numa_64.c | ||
pageattr-test.c | ||
pageattr.c | ||
pat.c | ||
pf_in.c | ||
pf_in.h | ||
pgtable_32.c | ||
pgtable.c | ||
srat_32.c | ||
srat_64.c | ||
testmmiotrace.c |