diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2013-04-28 09:37:26 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-04-30 15:59:42 +1000 |
| commit | ce54152f429ed5e6ad83e5e9f61825b5a795dd1e (patch) | |
| tree | 511310b26dd12bc4572ecb71a3b97ab392a55b6c | |
| parent | 4b8f63d92e30ffd33bd77e028918919be2d926e6 (diff) | |
powerpc: Save DAR and DSISR in pt_regs on MCE
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 <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 9 | ||||
| -rw-r--r-- | arch/powerpc/xmon/xmon.c | 2 |
2 files changed, 10 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 80d56f094a0d..e6eba1bf61ad 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -693,9 +693,18 @@ 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 13f85defabed..51e237c4648f 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -1430,7 +1430,7 @@ 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); |