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Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull x86 fixes from Thomas Gleixner:
 "A set of fixes for x86:

   - Make the unwinder more robust when it encounters a NULL pointer
     call, so the backtrace becomes more useful

   - Fix the bogus ORC unwind table alignment

   - Prevent kernel panic during kexec on HyperV caused by a cleared but
     not disabled hypercall page.

   - Remove the now pointless stacksize increase for KASAN_EXTRA, as
     KASAN_EXTRA is gone.

   - Remove unused variables from the x86 memory management code"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/hyperv: Fix kernel panic when kexec on HyperV
  x86/mm: Remove unused variable 'old_pte'
  x86/mm: Remove unused variable 'cpu'
  Revert "x86_64: Increase stack size for KASAN_EXTRA"
  x86/unwind: Add hardcoded ORC entry for NULL
  x86/unwind: Handle NULL pointer calls better in frame unwinder
  x86/unwind/orc: Fix ORC unwind table alignment
This commit is contained in:
Linus Torvalds
2019-03-10 14:46:56 -07:00
parent b6e3cb4e86 179fb36abb
commit 262d6a9a63
7 changed files with 55 additions and 10 deletions
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2
include/asm-generic/vmlinux.lds.h
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@@ -733,7 +733,7 @@
KEEP(*(.orc_unwind_ip)) \
__stop_orc_unwind_ip = .; \
} \
. = ALIGN(6); \
. = ALIGN(2); \
.orc_unwind : AT(ADDR(.orc_unwind) - LOAD_OFFSET) { \
__start_orc_unwind = .; \
KEEP(*(.orc_unwind)) \