From: Marc Zyngier <maz@kernel.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Sudeep Holla <sudeep.holla@arm.com>,
Hanjun Guo <guohanjun@huawei.com>
Cc: dann frazier <dann.frazier@canonical.com>,
Fu Wei <wefu@redhat.com>, Len Brown <lenb@kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kernel-team@android.com
Subject: [PATCH 0/2] arm64: ACPI GTDT watchdog fixes
Date: Wed, 21 Apr 2021 17:43:15 +0100 [thread overview]
Message-ID: <20210421164317.1718831-1-maz@kernel.org> (raw)
Dann recently reported that his ThunderX machine failed to boot since
64b499d8df40 ("irqchip/gic-v3: Configure SGIs as standard
interrupts"), with a not so pretty crash while trying to send an IPI.
It turned out to be caused by a mix of broken firmware and a buggy
GTDT watchdog driver. Both have forever been buggy, but the above
commit revealed that the error handling path of the driver was
probably the worse part of it all.
Anyway, this short series has two goals:
- handle broken firmware in a less broken way
- make sure that the route cause of the problem can be identified
quickly
Thanks,
M.
Marc Zyngier (2):
ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
ACPI: irq: Prevent unregistering of GIC SGIs
drivers/acpi/arm64/gtdt.c | 10 ++++++----
drivers/acpi/irq.c | 6 +++++-
2 files changed, 11 insertions(+), 5 deletions(-)
--
2.29.2
WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Sudeep Holla <sudeep.holla@arm.com>,
Hanjun Guo <guohanjun@huawei.com>
Cc: dann frazier <dann.frazier@canonical.com>,
Fu Wei <wefu@redhat.com>, Len Brown <lenb@kernel.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kernel-team@android.com
Subject: [PATCH 0/2] arm64: ACPI GTDT watchdog fixes
Date: Wed, 21 Apr 2021 17:43:15 +0100 [thread overview]
Message-ID: <20210421164317.1718831-1-maz@kernel.org> (raw)
Dann recently reported that his ThunderX machine failed to boot since
64b499d8df40 ("irqchip/gic-v3: Configure SGIs as standard
interrupts"), with a not so pretty crash while trying to send an IPI.
It turned out to be caused by a mix of broken firmware and a buggy
GTDT watchdog driver. Both have forever been buggy, but the above
commit revealed that the error handling path of the driver was
probably the worse part of it all.
Anyway, this short series has two goals:
- handle broken firmware in a less broken way
- make sure that the route cause of the problem can be identified
quickly
Thanks,
M.
Marc Zyngier (2):
ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
ACPI: irq: Prevent unregistering of GIC SGIs
drivers/acpi/arm64/gtdt.c | 10 ++++++----
drivers/acpi/irq.c | 6 +++++-
2 files changed, 11 insertions(+), 5 deletions(-)
--
2.29.2
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next reply other threads:[~2021-04-21 16:43 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-21 16:43 Marc Zyngier [this message]
2021-04-21 16:43 ` [PATCH 0/2] arm64: ACPI GTDT watchdog fixes Marc Zyngier
2021-04-21 16:43 ` [PATCH 1/2] ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure Marc Zyngier
2021-04-21 16:43 ` Marc Zyngier
2021-04-21 17:14 ` Sudeep Holla
2021-04-21 17:14 ` Sudeep Holla
2021-04-21 17:20 ` Sudeep Holla
2021-04-21 17:20 ` Sudeep Holla
2021-04-21 17:57 ` Marc Zyngier
2021-04-21 17:57 ` Marc Zyngier
2021-04-21 16:43 ` [PATCH 2/2] ACPI: irq: Prevent unregistering of GIC SGIs Marc Zyngier
2021-04-21 16:43 ` Marc Zyngier
2021-04-21 17:15 ` Sudeep Holla
2021-04-21 17:15 ` Sudeep Holla
2021-04-21 17:56 ` Marc Zyngier
2021-04-21 17:56 ` Marc Zyngier
2021-04-21 18:09 ` [PATCH 0/2] arm64: ACPI GTDT watchdog fixes dann frazier
2021-04-21 18:09 ` dann frazier
2021-04-22 13:42 ` Hanjun Guo
2021-04-22 13:42 ` Hanjun Guo
2021-04-22 14:23 ` Lorenzo Pieralisi
2021-04-22 14:23 ` Lorenzo Pieralisi
2021-04-23 13:43 ` Catalin Marinas
2021-04-23 13:43 ` Catalin Marinas
2021-04-23 17:11 ` Catalin Marinas
2021-04-23 17:11 ` Catalin Marinas
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