Hi, Greg,
V2:
Backport commit 7fb08eca ("x86: mm: move mmap_sem unlock from
mm_fault_error() to caller)" to solve lock problem on x86.
V1:
The commit 88b5d12 ("mm: propagate error from stack expansion even for
guard page") for 3.10-stable makes the testcase get "bus error", while
it had "segmentation fault" in older kernels.
===== testcase =====
int main(void)
{
main();
return 0;
}
====================
These 2 patches fix it by adding a VM_FAULT_SIGSEGV in all architecture
fault handlers.
[PATCH 1/3] is asjusted to ignore un-supported arch and driver in 3.10.
And some files are separated or renamed in newer kernel, so [PATCH 1/3]
is also adjusted to add the VM_FAULT_SIGSEGV handling in the original
files in 3.10.
thanks,
Sheng
Linus Torvalds (3):
vm: add VM_FAULT_SIGSEGV handling support
vm: make stack guard page errors return VM_FAULT_SIGSEGV rather than
SIGBUS
x86: mm: move mmap_sem unlock from mm_fault_error() to caller
arch/alpha/mm/fault.c | 2 ++
arch/arc/mm/fault.c | 2 ++
arch/avr32/mm/fault.c | 2 ++
arch/cris/mm/fault.c | 2 ++
arch/frv/mm/fault.c | 2 ++
arch/ia64/mm/fault.c | 2 ++
arch/m32r/mm/fault.c | 2 ++
arch/m68k/mm/fault.c | 2 ++
arch/metag/mm/fault.c | 2 ++
arch/microblaze/mm/fault.c | 2 ++
arch/mips/mm/fault.c | 2 ++
arch/mn10300/mm/fault.c | 2 ++
arch/openrisc/mm/fault.c | 2 ++
arch/parisc/mm/fault.c | 2 ++
arch/powerpc/mm/fault.c | 2 ++
arch/powerpc/platforms/cell/spu_fault.c | 2 +-
arch/s390/mm/fault.c | 6 ++++++
arch/score/mm/fault.c | 2 ++
arch/sh/mm/fault.c | 2 ++
arch/sparc/mm/fault_32.c | 2 ++
arch/sparc/mm/fault_64.c | 2 ++
arch/tile/mm/fault.c | 2 ++
arch/um/kernel/trap.c | 2 ++
arch/x86/mm/fault.c | 10 +++-------
arch/xtensa/mm/fault.c | 2 ++
include/linux/mm.h | 5 +++--
mm/ksm.c | 2 +-
mm/memory.c | 7 ++++---
28 files changed, 62 insertions(+), 14 deletions(-)
--
1.8.3.4
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