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From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Mahesh Salgaonkar <mahesh@linux.ibm.com>,
	Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH v4 02/16] powerpc/64s/exceptions: Fix in_mce accounting in unrecoverable path
Date: Fri,  8 May 2020 14:33:54 +1000	[thread overview]
Message-ID: <20200508043408.886394-3-npiggin@gmail.com> (raw)
In-Reply-To: <20200508043408.886394-1-npiggin@gmail.com>

Acked-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 arch/powerpc/kernel/exceptions-64s.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index bbf3109c5cba..3322000316ab 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1267,6 +1267,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
 	andc	r10,r10,r3
 	mtmsrd	r10
 
+	lhz	r12,PACA_IN_MCE(r13)
+	subi	r12,r12,1
+	sth	r12,PACA_IN_MCE(r13)
+
 	/* Invoke machine_check_exception to print MCE event and panic. */
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	machine_check_exception
-- 
2.23.0


  parent reply	other threads:[~2020-05-08  4:40 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-08  4:33 [PATCH v4 00/16] powerpc: machine check and system reset fixes Nicholas Piggin
2020-05-08  4:33 ` [PATCH v4 01/16] powerpc/64s/exception: Fix machine check no-loss idle wakeup Nicholas Piggin
2020-05-08  4:33 ` Nicholas Piggin [this message]
2020-05-08  4:33 ` [PATCH v4 03/16] powerpc/64s/exceptions: Change irq reconcile for NMIs from reusing _DAR to RESULT Nicholas Piggin
2020-05-08  4:33 ` [PATCH v4 04/16] powerpc/64s/exceptions: machine check reconcile irq state Nicholas Piggin
2020-05-08 13:39   ` Michael Ellerman
2020-05-09  7:48     ` Nicholas Piggin
2020-05-08  4:33 ` [PATCH v4 05/16] powerpc/pseries/ras: avoid calling rtas_token in NMI paths Nicholas Piggin
2020-05-08  4:33 ` [PATCH v4 06/16] powerpc/pseries/ras: FWNMI_VALID off by one Nicholas Piggin
2020-05-08  4:33 ` [PATCH v4 07/16] powerpc/pseries/ras: fwnmi avoid modifying r3 in error case Nicholas Piggin
2020-05-08  4:34 ` [PATCH v4 08/16] powerpc/pseries/ras: fwnmi sreset should not interlock Nicholas Piggin
2020-05-08  4:34 ` [PATCH v4 09/16] powerpc/pseries: limit machine check stack to 4GB Nicholas Piggin
2020-05-08  4:34 ` [PATCH v4 10/16] powerpc/pseries: machine check use rtas_call_unlocked with args on stack Nicholas Piggin
2020-05-08  4:34 ` [PATCH v4 11/16] powerpc/64s: machine check interrupt update NMI accounting Nicholas Piggin
2020-05-09  3:13   ` kbuild test robot
2020-05-09  3:13     ` kbuild test robot
2020-05-09  7:50     ` Nicholas Piggin
2020-05-11  9:50       ` Michael Ellerman
2020-05-11  9:50         ` Michael Ellerman
2020-05-08  4:34 ` [PATCH v4 12/16] powerpc: implement ftrace_enabled helper Nicholas Piggin
2020-05-08  4:34 ` [PATCH v4 13/16] powerpc/64s: machine check do not trace real-mode handler Nicholas Piggin
2020-05-08  4:34 ` [PATCH v4 14/16] powerpc/traps: system reset do not trace Nicholas Piggin
2020-05-08  4:34 ` [PATCH v4 15/16] powerpc/traps: make unrecoverable NMIs die instead of panic Nicholas Piggin
2020-05-08  4:34 ` [PATCH v4 16/16] powerpc/traps: Machine check fix RI=0 recoverability check Nicholas Piggin
2020-05-20 11:00 ` [PATCH v4 00/16] powerpc: machine check and system reset fixes Michael Ellerman

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