On 4/3/19 7:25 pm, Mahesh J Salgaonkar wrote:
From: Mahesh Salgaonkar <mah...@linux.vnet.ibm.com>

The kcov instrumentation inside SLB routines causes duplicate SLB entries
to be added resulting into SLB multihit machine checks.
Disable kcov instrumentation on slb.o

Signed-off-by: Mahesh Salgaonkar <mah...@linux.vnet.ibm.com>

Summary line needs a powerpc:

---
  arch/powerpc/mm/Makefile |    1 +
  1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index d4d32e229ace..f9cb40684746 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -60,3 +60,4 @@ obj-$(CONFIG_PPC_MEM_KEYS)    += pkeys.o
  # This is necessary for booting with kcov enabled on book3e machines
  KCOV_INSTRUMENT_tlb_nohash.o := n
  KCOV_INSTRUMENT_fsl_booke_mmu.o := n
+KCOV_INSTRUMENT_slb.o := n

The SLB stuff isn't related to the book3e issues, I'd appreciate a separate comment here.

Otherwise

Acked-by: Andrew Donnellan <andrew.donnel...@au1.ibm.com>



--
Andrew Donnellan              OzLabs, ADL Canberra
andrew.donnel...@au1.ibm.com  IBM Australia Limited

Reply via email to