From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux ACPI <linux-acpi@vger.kernel.org>
Cc: "Linux PM" <linux-pm@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Zhang Rui" <rui.zhang@intel.com>,
"Erik Kaneda" <erik.kaneda@intel.com>,
"Bob Moore" <robert.moore@intel.com>,
"Ondřej Caletka" <ondrej@caletka.cz>
Subject: [PATCH 0/2] ACPI: PM: s2idle: Harden the premature EC wakeups handling
Date: Wed, 25 Mar 2020 11:52:42 +0100 [thread overview]
Message-ID: <9291082.ZuhHelrm8h@kreacher> (raw)
Hi All,
It turns out that the checks added by commit fdde0ff8590b ("ACPI: PM: s2idle:
Prevent spurious SCIs from waking up the system") were not precise enough and
there are cases in which it actually doesn't prevent the system from resuming
due to a spurious wakeup event coming from the EC.
To fix that issue, allow acpi_any_gpe_status_set() to skip one GPE from the
check carried out by it (patch [1/2]) and use that for skipping the EC GPE
from that check in the suspend-to-idle loop, which then allows the wakeup
events coming from the EC to be checked more precisely (patch [2/2]).
Thanks!
next reply other threads:[~2020-03-25 10:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-25 10:52 Rafael J. Wysocki [this message]
2020-03-25 10:54 ` [PATCH 1/2] ACPICA: Allow acpi_any_gpe_status_set() to skip one GPE Rafael J. Wysocki
2020-03-25 10:55 ` [PATCH 2/2] ACPI: PM: s2idle: Refine active GPEs check Rafael J. Wysocki
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