From: Mahesh J Salgaonkar <mahesh@linux.vnet.ibm.com>
To: linuxppc-dev <linuxppc-dev@ozlabs.org>
Cc: Nicholas Piggin <npiggin@gmail.com>,
Michal Suchanek <msuchanek@suse.com>,
Michael Ellerman <mpe@ellerman.id.au>,
stable@vger.kernel.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Michal Suchanek <msuchanek@suse.com>,
Ananth Narayan <ananth@in.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>,
Laurent Dufour <ldufour@linux.vnet.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>
Subject: [PATCH v7 0/9] powerpc/pseries: Machine check handler improvements.
Date: Tue, 07 Aug 2018 19:45:54 +0530 [thread overview]
Message-ID: <153365127532.14256.1965469477086140841.stgit@jupiter.in.ibm.com> (raw)
This patch series includes some improvement to Machine check handler
for pseries. Patch 1 fixes a buffer overrun issue if rtas extended error
log size is greater than RTAS_ERROR_LOG_MAX.
Patch 2 fixes an issue where machine check handler crashes
kernel while accessing vmalloc-ed buffer while in nmi context.
Patch 3 fixes endain bug while restoring of r3 in MCE handler.
Patch 5 implements a real mode mce handler and flushes the SLBs on SLB error.
Patch 6 display's the MCE error details on console.
Patch 7 saves and dumps the SLB contents on SLB MCE errors to improve the
debugability.
Patch 8 adds sysctl knob for recovery action on recovered MCEs.
Patch 9 consolidates mce early real mode handling code.
Change in V7:
- Fold Michal's patch into patch 5
- Handle MSR_RI=0 and evil context case in MC handler in patch 5.
- Patch 7: Print slb cache ptr value and slb cache data.
- Move patch 8 to patch 9.
- Introduce patch 8 add sysctl knob for recovery action on recovered MCEs.
Change in V6:
- Introduce patch 8 to consolidate early real mode handling code.
- Address Nick's comment on erroneous hunk.
Change in V5:
- Use min_t instead of max_t.
- Fix an issue reported by kbuild test robot and address review comments.
Change in V4:
- Flush the SLBs in real mode mce handler to handle SLB errors for entry 0.
- Allocate buffers per cpu to hold rtas error log and old slb contents.
- Defer the logging of rtas error log to irq work queue.
Change in V3:
- Moved patch 5 to patch 2
Change in V2:
- patch 3: Display additional info (NIP and task info) in MCE error details.
- patch 5: Fix endain bug while restoring of r3 in MCE handler.
---
Mahesh Salgaonkar (9):
powerpc/pseries: Avoid using the size greater than RTAS_ERROR_LOG_MAX.
powerpc/pseries: Defer the logging of rtas error to irq work queue.
powerpc/pseries: Fix endainness while restoring of r3 in MCE handler.
powerpc/pseries: Define MCE error event section.
powerpc/pseries: flush SLB contents on SLB MCE errors.
powerpc/pseries: Display machine check error details.
powerpc/pseries: Dump the SLB contents on SLB MCE errors.
powerpc/mce: Add sysctl control for recovery action on MCE.
powernv/pseries: consolidate code for mce early handling.
arch/powerpc/include/asm/book3s/64/mmu-hash.h | 8 +
arch/powerpc/include/asm/machdep.h | 1
arch/powerpc/include/asm/mce.h | 2
arch/powerpc/include/asm/paca.h | 7 +
arch/powerpc/include/asm/rtas.h | 116 ++++++++++++
arch/powerpc/kernel/exceptions-64s.S | 42 ++++
arch/powerpc/kernel/mce.c | 73 +++++++-
arch/powerpc/kernel/traps.c | 3
arch/powerpc/mm/slb.c | 79 ++++++++
arch/powerpc/platforms/powernv/setup.c | 15 ++
arch/powerpc/platforms/pseries/pseries.h | 1
arch/powerpc/platforms/pseries/ras.c | 242 +++++++++++++++++++++++--
arch/powerpc/platforms/pseries/setup.c | 27 +++
13 files changed, 588 insertions(+), 28 deletions(-)
--
Signature
next reply other threads:[~2018-08-07 14:16 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-07 14:15 Mahesh J Salgaonkar [this message]
2018-08-07 14:16 ` [PATCH v7 1/9] powerpc/pseries: Avoid using the size greater than RTAS_ERROR_LOG_MAX Mahesh J Salgaonkar
2018-08-07 14:16 ` [PATCH v7 2/9] powerpc/pseries: Defer the logging of rtas error to irq work queue Mahesh J Salgaonkar
2018-08-07 14:16 ` [PATCH v7 3/9] powerpc/pseries: Fix endainness while restoring of r3 in MCE handler Mahesh J Salgaonkar
2018-08-13 11:23 ` [v7, " Michael Ellerman
2018-08-07 14:16 ` [PATCH v7 4/9] powerpc/pseries: Define MCE error event section Mahesh J Salgaonkar
2018-08-08 14:42 ` Michael Ellerman
2018-08-10 10:29 ` Mahesh Jagannath Salgaonkar
2018-08-16 4:14 ` Michael Ellerman
2018-08-16 14:44 ` Segher Boessenkool
2018-08-17 11:22 ` Mahesh Jagannath Salgaonkar
2018-08-07 14:17 ` [PATCH v7 5/9] powerpc/pseries: flush SLB contents on SLB MCE errors Mahesh J Salgaonkar
2018-08-07 16:54 ` Michal Suchánek
2018-08-10 10:30 ` Mahesh Jagannath Salgaonkar
2018-08-08 9:04 ` Nicholas Piggin
2018-08-10 10:30 ` Mahesh Jagannath Salgaonkar
2018-08-07 14:17 ` [PATCH v7 6/9] powerpc/pseries: Display machine check error details Mahesh J Salgaonkar
2018-08-07 14:17 ` [PATCH v7 7/9] powerpc/pseries: Dump the SLB contents on SLB MCE errors Mahesh J Salgaonkar
2018-08-09 1:05 ` Michael Ellerman
2018-08-10 10:32 ` Mahesh Jagannath Salgaonkar
2018-08-10 10:49 ` Mahesh Jagannath Salgaonkar
2018-08-11 4:33 ` Nicholas Piggin
2018-08-13 4:17 ` Mahesh Jagannath Salgaonkar
2018-08-13 14:27 ` Nicholas Piggin
2018-08-14 10:57 ` Mahesh Jagannath Salgaonkar
2018-08-14 12:47 ` Aneesh Kumar K.V
2018-08-07 14:17 ` [PATCH v7 8/9] powerpc/mce: Add sysctl control for recovery action on MCE Mahesh J Salgaonkar
2018-08-08 14:56 ` Michael Ellerman
2018-08-08 15:37 ` Aneesh Kumar K.V
2018-08-08 16:09 ` Michal Suchánek
2018-08-10 11:04 ` Michael Ellerman
2018-08-09 6:34 ` Michael Ellerman
2018-08-09 8:02 ` Nicholas Piggin
2018-08-09 8:09 ` Ananth N Mavinakayanahalli
2018-08-09 8:33 ` Nicholas Piggin
2018-08-09 10:26 ` Michal Suchánek
2018-08-10 7:31 ` Nicholas Piggin
2018-08-09 1:43 ` Nicholas Piggin
2018-08-07 14:18 ` [PATCH v7 9/9] powernv/pseries: consolidate code for mce early handling Mahesh J Salgaonkar
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