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linux/arch/ia64
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Linus Torvalds ebad825cdd ia64: mark special ia64 memory areas anonymous 
Commit bfd40eaff5 ("mm: fix vma_is_anonymous() false-positives") made
newly allocated vma's have a dummy vm_ops field so that they wouldn't be
mistaken for anonymous mappings, and if you wanted an anonymous vma you
had to explicitly say so by calling "vma_set_anonymous()" on it.

However, it missed the two special vmas that ia64 processes have: the
register backing store and the NaT page.  So they wouldn't actually act
like anonymous ranges, and page faults on them caused a SIGBUS rather
than the creation of a new anon page in them.

That obviously will make any ia64 binary very unhappy indeed, and the
boot fails early.

Fixes: bfd40eaff5 ("mm: fix vma_is_anonymous() false-positives")
Reported-by: Tony Luck <tony.luck@intel.com>
Cc: Kirill Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-08-01 09:57:50 -07:00
..
configs [IA64] refresh arch/ia64/configs/* using "make savedefconfig" 2014-09-23 11:09:29 -07:00
dig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hp dma-mapping updates for 4.18: 2018-06-04 10:58:12 -07:00
include mm: use vma_init() to initialize VMAs on stack and data segments 2018-07-26 19:38:03 -07:00
kernel mm: make vm_area_alloc() initialize core fields 2018-07-21 15:24:03 -07:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm ia64: mark special ia64 memory areas anonymous 2018-08-01 09:57:50 -07:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci PCI/MSI: Don't set up INTx if MSI or MSI-X is enabled 2018-03-13 15:03:36 -05:00
scripts ia64: convert unwcheck.py to python3 2018-03-05 14:35:01 -08:00
sn treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
uv
install.sh
Kconfig ia64: disable CONFIG_PERFMON at least for now 2018-06-11 11:55:04 -07:00
Kconfig.debug License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile kbuild: add machine size to CHECKFLAGS 2018-06-01 11:36:58 +09:00
module.lds License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00