From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp05.au.ibm.com (e23smtp05.au.ibm.com [202.81.31.147]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e23smtp05.au.ibm.com", Issuer "GeoTrust SSL CA" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 1D7AA2C0485 for ; Wed, 6 Mar 2013 17:10:43 +1100 (EST) Received: from /spool/local by e23smtp05.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 6 Mar 2013 16:06:32 +1000 Received: from d23relay04.au.ibm.com (d23relay04.au.ibm.com [9.190.234.120]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id 3B1C72BB0023 for ; Wed, 6 Mar 2013 17:10:39 +1100 (EST) Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay04.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r265w2Xs53608604 for ; Wed, 6 Mar 2013 16:58:03 +1100 Received: from d23av04.au.ibm.com (loopback [127.0.0.1]) by d23av04.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r266AcRN014272 for ; Wed, 6 Mar 2013 17:10:38 +1100 From: "Aneesh Kumar K.V" To: benh@kernel.crashing.org, paulus@samba.org Subject: [PATCH -V2 02/26] powerpc: Save DAR and DSISR in pt_regs on MCE Date: Wed, 6 Mar 2013 11:40:03 +0530 Message-Id: <1362550227-575-3-git-send-email-aneesh.kumar@linux.vnet.ibm.com> In-Reply-To: <1362550227-575-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> References: <1362550227-575-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: linuxppc-dev@lists.ozlabs.org, "Aneesh Kumar K.V" List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: "Aneesh Kumar K.V" We were not saving DAR and DSISR on MCE. Save then and also print the values along with exception details in xmon. Acked-by: Paul Mackerras Signed-off-by: Aneesh Kumar K.V --- arch/powerpc/kernel/exceptions-64s.S | 9 +++++++++ arch/powerpc/xmon/xmon.c | 2 +- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 0e9c48c..d02e730 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -640,9 +640,18 @@ slb_miss_user_pseries: .align 7 .globl machine_check_common machine_check_common: + + mfspr r10,SPRN_DAR + std r10,PACA_EXGEN+EX_DAR(r13) + mfspr r10,SPRN_DSISR + stw r10,PACA_EXGEN+EX_DSISR(r13) EXCEPTION_PROLOG_COMMON(0x200, PACA_EXMC) FINISH_NAP DISABLE_INTS + ld r3,PACA_EXGEN+EX_DAR(r13) + lwz r4,PACA_EXGEN+EX_DSISR(r13) + std r3,_DAR(r1) + std r4,_DSISR(r1) bl .save_nvgprs addi r3,r1,STACK_FRAME_OVERHEAD bl .machine_check_exception diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 1f8d2f1..a72e490 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -1423,7 +1423,7 @@ static void excprint(struct pt_regs *fp) printf(" sp: %lx\n", fp->gpr[1]); printf(" msr: %lx\n", fp->msr); - if (trap == 0x300 || trap == 0x380 || trap == 0x600) { + if (trap == 0x300 || trap == 0x380 || trap == 0x600 || trap == 0x200) { printf(" dar: %lx\n", fp->dar); if (trap != 0x380) printf(" dsisr: %lx\n", fp->dsisr); -- 1.7.10