c1125934ec
Request system fatal crash via SysRq when a watchdog timeout loop is
detected. This escapes automatically the device hanging symptom and also
preserves context of system server in memory snapshot.
More details and background: go/break-sys-watchdog-loop
Bug: 141948707
Test: Insert 'sleep_forever()' to block BinderThreadMonitor to reproduce
watchdog timeout.
Change-Id: I3ae4b33b0d7811764c61663ac3718311b55fd048
46 lines
1.4 KiB
Plaintext
46 lines
1.4 KiB
Plaintext
# Copyright (C) 2020 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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module: "android.sysprop.WatchdogProperties"
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owner: Platform
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# To escape the watchdog timeout loop, fatal reboot the system when
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# watchdog timed out 'fatal_count' times in 'fatal_window_second'
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# seconds, if both values are not 0. Default value of both is 0.
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prop {
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api_name: "fatal_count"
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type: Integer
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prop_name: "framework_watchdog.fatal_count"
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scope: Internal
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access: Readonly
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}
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prop {
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api_name: "fatal_window_second"
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type: Integer
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prop_name: "framework_watchdog.fatal_window.second"
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scope: Internal
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access: Readonly
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}
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# The fatal counting can be disabled by setting property
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# 'is_fatal_ignore' to true.
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prop {
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api_name: "is_fatal_ignore"
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type: Boolean
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prop_name: "persist.debug.framework_watchdog.fatal_ignore"
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scope: Internal
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access: Readonly
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}
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