Create a private rfind that allows a fuzzy match based on a bit error
rate (BER) of 1 every 8 bits. last kmsg is affected by pstore ramoops
backing that suffers from data corruption. Add some additional
validation based on possible data corruption scenarios, as a noisy
match means higher chance of noisy data.
Noisy data notably can affect the battery level detection, but do not
typically result in false positives. Battery level, or failure, is
the responsibility of the BatteryStats service, providing a positive
signal and strong device-independent algorithm. The checking done in
bootstat is likely to be deprecated in favour of an API request to
BatteryStats once their algorithms deal with surprise outages due to
aging.
The kernel logging heuristic and BER fixup handily deals with a
prevalent issue where some bootloaders failure to properly notify us
of panics. This is where the gains are noticed with this improvement.
Test: system/core/bootstat/boot_reason_test.sh
Bug: 63736262
Change-Id: I93b4210f12fb47c5c036f4d6eb4cafeee4896d35
Replace simple strtoull with loop that ensures no leading zeros.
Restrict size of value buffer being checked as allocation was
going to end of retrieved buffer, which can cause unnecessary
memory pressure during boot.
Test: system/core/bootstat/boot_reason_test.sh
Bug: 63736262
Change-Id: Ifdc1d4fd3a73794c001577024ce7cbfde9c25028
If we sniff an unknown boot reason from last kmsg, make sure it
has a "reboot," prefix.
Test: system/core/bootstat/boot_reason_test.sh
Bug: 63736262
Change-Id: Ia1c401b8899d1f0c56bd4f5d8d2d19b7fc889a30
Add the test injection to known list, and deal with an error
propagation issue.
Test: system/core/bootstat/boot_reason_test.sh Its_Just_So_Hard_reboot
Bug: 63736262
Change-Id: I4799956978a8884c69c830fcedd7febd143651fd
Add cold,powerkey, warm,s3_wakeup and hard,hw_reset so that
sys.boot.reason values can also be enumerated. Also add
some reserved speculative entries associated with forced
suspend to RAM and DISK; shutdown,suspend and shutdown,hibernate
respectively.
Test: system/core/bootstat/boot_reason_test.sh
Bug: 67636061
Change-Id: Ic43523748e6006aaca882f8eec7c1f0c08431bd8
Empty boot reason is mostly unexpected but may take up the bulk of
unknown reported boot reason values.
Bug: none
Test: none
Change-Id: I9978658c2b052d5cf5d28299861b0d1125ba9fc0
To make parsing easier for last reboot reason. This also ensures that
last boot reason matches the content that is typically returned by the
bootloader or in turn landed in the canonical system boot reason.
Simplify parsing in bootstat. Adjust and fix boot_reason_test.sh for
new reality. Allow boot reason tests battery and kernel_panic to pass
if device does not support pstore (empty before and after the test).
If device somehow landed in fastboot mode while waiting for the
display, issue a fastboot reboot to move the test along. Some cleanup
and standardization changes to the test script.
Test: system/core/bootstat/boot_reason_test.sh
Bug: 63736262
Change-Id: I97d5467c0b4a6d65df3525f1a2d0051db813d5ad
Change HandleSigtermSignal() handler to report shutdown,container. Add
the new reason to bootstat. Remove log stutter as
HandlPowerctlMessage will also do a LOG(INFO) reporting
shutdown,container as reason.
Sending SIGTERM to init is to allow a host OS to ask an Android
Container instance to shutdown. The temptation is to report
shutdown,sigterm but that does not accurately describe the usage
scenario.
Test: compile
Bug: 63736262
Change-Id: I3c5798921bdbef5d2689ad22a2e8103741b570b4
Establish a tighter trust relationship with digitization of the
battery level. Validate the reboot reason collected from the last
kmsg. Validate the last reboot reason before using for enhancing
system reboot reason.
Test: system/core/bootstat/boot_reason_test.sh
Bug: 63636262
Change-Id: I45fbac4a33c09295cda89de3b73c93a884033e3b
Code style has drifted too far from our current clang-format
settings.
Test: compile
Side-Effects: none
Bug: 63736262
Change-Id: Ie390459db123cfadf09aa06c8dafb1ae69a72af8
If bootloader reports kernel_panic, gives us permission for a
deeper check of which kind occurred. Resolve a problem with
some kernels that do not have the 'sysrq: SysRq :' log stutter.
Test: system/core/bootstat/boot_reason_test.sh
Bug: 63736262
Change-Id: Idb8978de7a4f4e3c671c6ab7efc5ebe841f7bbd8
If the bootloader insists on reporting reboot for cold, warm and
hard, we need to reconstruct canonical reason from the
persist.sys.boot.reason property.
Some log lines contained bootstate, letting their noise through
during testing, changed regex to look for bootstat[^e].
Test: system/core/bootstat/boot_reason_test.sh
Bug: 63736262
Change-Id: I3788c6cf8aca7fc73dd01bf95acb596d18ed7ee4
For reboot [reboot_arg] requests via either reboot or adb reboot,
if reboot_arg is empty then report "shell" or "adb" respectively.
Test: boot_reason_test.sh shell_reboot adb_reboot
Bug: 63736262
Change-Id: Ie613d9e62db6a705885e4e7520aede27af3aa1b9
Adding functionality to bootstat --record_boot_complete and
--record_boot_reason to initialize sys.boot.reason, the canonical
system boot reason.
Filter out ro.boot.bootreason oem noise into sys.boot.reason. Add
heuristics to determine what the boot reason is, when otherwise would
be defaulting to the blunt and relatively devoid of detail catch-all
reboot reasons ("reboot", "shutdown", "cold", "warm", "hard").
boot_reason_test.sh is also a compliance test.
Test: boot_reason_test.sh all
Bug: 63736262
Change-Id: Ic9a42cccbcfc89a5c0e081ba66d577a97c8c8c76
add description about --record_boot_complete in the help
Test: manually with HiKey
Change-Id: I521d6f5b9d98113c006fc6ab146b6c353ce2390c
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
Use this for bootstat and init. This replaces the custom uptime parser in
bootstat.
This is a reland of aosp/338325 with a stubbed implementation for Darwin.
This change also has clang_format fixes (automatic).
Bug: 34352037
Test: chrono_utils_test
Change-Id: I72a62a3ca1ccfc0a4ccc6294ff1776c263144686
Use this for bootstat and init. This replaces the custom uptime parser in
bootstat.
This is a reland of aosp/332854 with a fix for Darwin.
Bug: 34352037
Test: chrono_utils_test
Change-Id: Ib2567d8df0e460ab59753ac1c053dd7f9f1008a7
bootstat.
To be shared with other native components that want to log histograms.
Bug: 34456830
Test: libmetricslogger_test
Change-Id: I94a1a91c6d33e443d66bc480158dc2470d6c9031
* Nanosecond precision ended up being harder to grok.
* This change modifies the Timer class to have duration_ms instead of
duration_ns.
Bug: 34466121
Test: adb logcat | grep bootstat
Change-Id: Ibd1c27dc3cb29d838a956e342281b2fb98d752a6
Should use android/log.h instead of log/log.h as a good example
to all others. Adjust header order to comply with Android Coding
standards.
Test: Compile
Bug: 26552300
Bug: 31289077
Change-Id: I33a8fb4e754d2dc4754d335660c450e0a67190fc
In rare cases the hardware storage on the device may be hosed and return
garbage. Use ParseInt which handles bad input instead of stoi.
BUG: 29334139
Change-Id: I91aedc169df110bea8097775f73dda11def22311
* Also log to the BootEventRecordStore to check lossiness.
* Log factory_reset_current_time_failure separately.
Bug: 27550578
Change-Id: Id3d579a74a59ac28290cb7d6048765519f9ba59b
