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From: Mahesh J Salgaonkar To: linuxppc-dev Date: Mon, 04 Mar 2019 13:55:51 +0530 User-Agent: StGit/unknown-version MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 19030408-0008-0000-0000-000002C83416 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19030408-0009-0000-0000-00002234351D Message-Id: <155168793242.4372.10864050702181452671.stgit@jupiter.in.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-03-04_04:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=674 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1903040063 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: syzkaller@googlegroups.com, Paul Mackerras , Nicholas Piggin , Andrew Donnellan Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Mahesh Salgaonkar 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 --- 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