afd66f2fd3
Report kernel_panic,sysrq,livelock,<state> reboot reason via last
dmesg (pstore console). Add ro.llk.killtest property, which will
allow reliable ABA platforms to drop kill test and go directly
to kernel panic. This should also allow some manual unit testing
of the canonical boot reason report.
New canonical boot reasons from llkd are:
- kernel_panic,sysrq,livelock,alarm llkd itself locked up (Hail Mary)
- kernel_panic,sysrq,livelock,driver uninterrruptible D state
- kernel_panic,sysrq,livelock,zombie uninterrruptible Z state
Manual test assumptions:
- llkd is built by the platform and landed on system partition
- unit test is built and landed in /data/nativetest (could
land in /data/nativetest64, adjust test correspondingly)
- llkd not enabled, ro.llk.enable and ro.llk.killtest
are not set by platform allowing test to adjust all the
configuration properties and start llkd.
- or, llkd is enabled, ro.llk.enable is true, and killtest is
disabled, ro.llk.killtest is false, setup by the platform.
This breaks the go/apct generic operations of the unit test
for llk.zombie and llk.driver as kernel panic results
requiring manual intervention otherwise. If test moves to
go/apct, then we will be forced to bypass these tests under
this condition (but allow them to run if ro.llk.killtest
is "off" so specific testing above/below can be run).
for i in driver zombie; do
adb shell su root setprop ro.llk.killtest off
adb shell /data/nativetest/llkd_unit_test/llkd_unit_test --gtest_filter=llkd.${i}
adb wait-for-device
adb shell su root setprop ro.llk.killtest off
sleep 60
adb shell getprop sys.boot.reason
adb shell /data/nativetest/llkd_unit_test/llkd_unit_test --gtest_filter=llkd.${i}
done
Test: llkd_unit_test (see test assumptions)
Bug: 33808187
Bug: 72838192
Change-Id: I2b24875376ddfdbc282ba3da5c5b3567de85dbc0
49 lines
1.3 KiB
Text
49 lines
1.3 KiB
Text
# eng default for ro.llk.enable and ro.khungtask.enable
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on property:ro.debuggable=*
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setprop llk.enable ${ro.llk.enable:-0}
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setprop khungtask.enable ${ro.khungtask.enable:-0}
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on property:ro.debuggable=1
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setprop llk.enable ${ro.llk.enable:-1}
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setprop khungtask.enable ${ro.khungtask.enable:-1}
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on property:ro.llk.enable=eng
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setprop llk.enable ${ro.debuggable:-0}
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on property:ro.khungtask.enable=eng
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setprop khungtask.enable ${ro.debuggable:-0}
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on property:llk.enable=1
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setprop llk.enable true
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on property:llk.enable=0
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setprop llk.enable false
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on property:khungtask.enable=1
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setprop khungtask.enable true
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on property:khungtask.enable=0
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setprop khungtask.enable false
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# Configure [khungtaskd]
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on property:khungtask.enable=true
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write /proc/sys/kernel/hung_task_timeout_secs ${ro.khungtask.timeout:-720}
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write /proc/sys/kernel/hung_task_warnings 65535
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write /proc/sys/kernel/hung_task_check_count 65535
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write /proc/sys/kernel/hung_task_panic 1
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on property:khungtask.enable=false
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write /proc/sys/kernel/hung_task_panic 0
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on property:llk.enable=true
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start llkd
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service llkd /system/bin/llkd
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class late_start
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disabled
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user llkd
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group llkd readproc
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capabilities KILL IPC_LOCK
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file /dev/kmsg w
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file /proc/sysrq-trigger w
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writepid /dev/cpuset/system-background/tasks
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