Commit graph

75 commits

Author SHA1 Message Date
Tom Cherry
5d7439ff5b Merge "Revert "do not start shutdown animation from init"" 2019-01-22 17:16:32 +00:00
Treehugger Robot
1945fbef10 Merge "init: dump less debug logs when unmount timeout" 2019-01-17 22:06:50 +00:00
Jaegeuk Kim
2fdbdfddac Merge "zram: support zram_writeback" 2019-01-17 21:03:15 +00:00
Jonglin Lee
28a2c9213b init: dump less debug logs when unmount timeout
Dump only uninterruptible tasks instead of all tasks when
unmount timeout. Also dump current CPU stack traces.

Bug: 122858312
Test: Reboot with and without timeout
Change-Id: I1412ace022b6d78e25fbe1337d1082d4be9c19c0
2019-01-17 19:14:46 +00:00
Randall Huang
df2faa4238 reboot: only run fsck when detecting filesystem inconsistency
Running fsck when filesystem is in clean state is unnecessary
and causes long shutdown duration.

Bug: 120575926
Test: shutdown
Change-Id: I0562bdad4ac2fb2dd3c9617f96ca3d6279876bd8
Signed-off-by: Randall Huang <huangrandall@google.com>
2019-01-16 16:19:24 +08:00
Jaegeuk Kim
2aedc82f02 zram: support zram_writeback
This patch supports zram_writeback enabled by fstab in two ways.

e.g.,
/dev/block/zram0 none swap defaults
    zramsize=1073741824,max_comp_streams=8,zram_loopback_path=/data/unencrypted/zram_swap

==> loopback size is 512MB by default.

Or,
/dev/block/zram0 none swap defaults
    zramsize=1073741824,max_comp_streams=8,zram_loopback_path=/data/unencrypted/zram_swap,zram_loopback_size=1G

==> loopback size can be specified by "zram_loopback_size=%s" with "GB" or "MB".

Or,
/dev/block/zram0 none swap defaults
    zramsize=1073741824,max_comp_streams=8,zram_backing_dev_path=/dev/block/partition

Bug: 74582279
Bug: 122659265
Change-Id: I66a2e6953b4743a34cf732dd0f5b5256c901f247
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
2019-01-15 16:07:59 +00:00
Tom Cherry
4f4caccefd Revert "do not start shutdown animation from init"
This reverts commit e2b04b71ae.

Conditionally reintroduce the shutdown animation as there is some
interest in retaining it.

Bug: 117854737
Test: n/a
Change-Id: I99a085bc763e230de46aa44b3488d771f7ad04ce
2019-01-08 10:39:59 -08:00
Yifan Hong
0e0f818c8a logical -> dynamic partitions.
Reflect a name change.
Test: boots
Bug: 119286600

Change-Id: I076071be18be521eeee4ebae10491b9f3e8ef857
2018-11-16 12:53:18 -08:00
Tom Cherry
4c67290da6 Merge "init: add [[nodiscard]] to Result" 2018-10-11 20:34:04 +00:00
Tom Cherry
d987264625 init: add [[nodiscard]] to Result
It's better to either check these results or explicitly ignore them.
Only a few callers weren't already doing this, so it's relatively
trivial to enforce.

Test: build
Change-Id: I44cdc342e46128f66cac914aaa0b9b4559cacd8c
2018-10-11 10:39:33 -07:00
Wei Wang
b5de088262 init: increase thermal shutdown timeout to 3s
1) increase thermal shutdown timeout to 3s for process to save work
2) respect property "ro.build.shutdown_timeout" in thermal shutdown if
   it is set less than default time - "3s"

Bug: 112432890
Test: Build
Change-Id: Idc2b24dd44c1fab8f9b047fd2468de2ee45ff783
2018-10-09 12:53:30 -07:00
Treehugger Robot
29e9833e39 Merge "fs_mgr/init: use unique_ptr + CLO_EXEC for setmntent()/fopen()" 2018-10-03 21:22:50 +00:00
Tom Cherry
f274e78eeb fs_mgr/init: use unique_ptr + CLO_EXEC for setmntent()/fopen()
We ran into an issue with an fd leaking due to missing both CLO_EXEC
and fclose() in related code, so let's make sure we're safe here too.

Test: boot
Change-Id: Ief893c936859815c78fa6d7e06cb88ad34aadbac
2018-10-03 13:19:04 -07:00
Hridya Valsaraju
542582689d Support 'adb reboot fastboot' command conditionally.
Devices not supporting logical partitions do not require the command.

Bug: 78793464
Test: 'adb reboot fastboot' reboots to bootloader for a device
not supporting logical partitions.

Change-Id: I0a7b6d4335040e24efbf461e2dd2d56ab1985b7f
2018-09-25 03:52:12 +00:00
Treehugger Robot
3231be66ce Merge "Add sideload, fastboot as reboot targets in init" 2018-08-14 21:25:50 +00:00
Tom Cherry
44aceed016 Split init's source files init first stage and second stage
This is a baseline for splitting init first and second stage into
their own executables.

Bug: 79758715
Test: sailfish boots
Change-Id: I549ad4502893b3a5e4c2a9886f66850f6d31b619
2018-08-03 13:40:17 -07:00
Hridya Valsaraju
71fb82a271 Add sideload, fastboot as reboot targets in init
Rebooting to these targets requires writing bootloader
messages and thus root. Moving them into init means that
adb, reboot don't need root to use these targets.

Test: try rebooting to these targets
Bug: 78793464
Change-Id: Ia002d1e3b1cb0c0616f60435fb9af4dce162cf84
2018-08-03 10:03:41 -07:00
Luis Hector Chavez
92c49bcb30 init: Cleanly shut down subcontext processes
This change adds an explicit cleanup for the subcontext processes and
avoids them from respawning, which causes a bunch of LOG(FATAL)s when
the system is going down.

Bug: 80425914
Test: kill -TERM $INIT_PID, no crashes for subcontext inits

Change-Id: I135191d959c1dd921b102af316b24d2bc161d6c9
2018-07-27 11:19:44 -07:00
Tom Cherry
0a72e6cb72 Revert "init: Reboot after timeout passes during reboot"
This reverts commit c9fec9d2be.

Looks like ext4 can't handle a system reboot happening in the middle
of an unmount.  We'll have to find another way to handle this.

Bug: 74817735
Bug: 75310371
Test: reboot device
Change-Id: Ib4f7f7fd29988a31a99f146c40f6d987c1fef15e
2018-03-19 16:37:02 -07:00
Tom Cherry
1f9d5406b3 init: add timers around sync() during shutdown
It seems that these sync() calls may take a long time in some
occasions, so we add these logs to check.

Bug: 74817735
Test: tree hugger
Change-Id: Id3635f6c7a6618b20c7caf93b05e50cc50ef99de
2018-03-15 10:24:00 -07:00
Tom Cherry
c9fec9d2be init: Reboot after timeout passes during reboot
There is currently a timeout for reboot, however if the system gets
stuck, particularly during file system operations, there is no safety
mechanism that guarantees the system will still reboot.

This change does all of the optional reboot steps in a separate thread
and waits for this thread with a timeout, such that if the reboot
steps get hung, the system is guaranteed to still reboot.

This is specific to 'reboot'.  Shutdown continues to run unbounded to
run fsck.

Bug: 72781711
Test: Reboot devices hitting and not hitting this timeout
Change-Id: Id5e1b3693bab00602177e28b9b662e1499c32961
2018-02-23 11:03:01 -08:00
Tom Cherry
7fd3bc27ec Move ActionManager to its own file
Bug: 36970783
Test: build
Change-Id: I08fa39052236b462249f79de1d02bf02bdbf4c84
2018-02-14 16:37:09 -08:00
Steven Moreland
d5eccfd417 Init remove direct calls to light sys nodes.
These are halified. Instead launch blank_screen which
does the same task w/o init itself having binder
dependencies.

Bug: 70846424
Test: manual + reboot appears similar
Change-Id: If8b2a56cbc31077122ea81406721b06034e4498f
2018-01-19 14:45:10 -08:00
Wei Wang
25dc30f3be init: call umount unconditionally
std::all_of is using std::find_if, which means, if any element the given
predicate returns false, it stops further iteration and just returns false.
std::all_of used in Reboot.cpp will cause umount not to be called on all
block devices if some block device returns false in the middle.

Bug: 68158923
Test: reboot
Change-Id: I43ba6bd0c18018c1ed5fe2b63996552bc51cc67c
2017-10-23 16:25:31 -07:00
Mark Salyzyn
6290982ee3 init+bootstat: reduce last reboot reason to canonical alias
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
2017-10-10 09:37:59 -07:00
Jaegeuk Kim
0f04f72c2d init/reboot: call MNT_FORCE at the last umount(2)
The last one will avoid errors=panic in ext4.

Test: Build
Bug: 63981945
Bug: 65481582
Change-Id: I9c86afcce441767e24fc43668ab1ff6230155a9f
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
2017-10-04 19:30:49 -07:00
Tom Cherry
cb0f9bbc85 init: run vendor commands in a separate SELinux context
One of the major aspects of treble is the compartmentalization of system
and vendor components, however init leaves a huge gap here, as vendor
init scripts run in the same context as system init scripts and thus can
access and modify the same properties, files, etc as the system can.

This change is meant to close that gap.  It forks a separate 'subcontext'
init that runs in a different SELinux context with permissions that match
what vendors should have access to.  Commands get sent over a socket to
this 'subcontext' init that then runs them in this SELinux context and
returns the result.

Note that not all commands run in the subcontext; some commands such as
those dealing with services only make sense in the context of the main
init process.

Bug: 62875318
Test: init unit tests, boot bullhead, boot sailfish

Change-Id: Idf4a4ebf98842d27b8627f901f961ab9eb412aee
2017-09-29 13:06:26 -07:00
Mark Salyzyn
bfd05b69a5 init: shutdown,thermal shut off display immediately
Remove a source of heat.

Test: manual
Change-Id: I9a7391ddb121b6748a4f49f4b5bfb77453ca1514
2017-09-26 14:06:51 -07:00
Luis Hector Chavez
9f97f47940 init: Allow clean system shutdown upon SIGTERM
This allows Android to cleanly shutdown when running in a PID namespace
in a way that does not rely on adbd running. This is useful to allow
Android to be running in a container and its lifetime managed by an
OCI-compliant tool.

Bug: 65415372
Test: `kill -TERM 1` as root is correctly dropped.
Test: `kill -TERM 1` from the init PID namespace causes init to cleanly shutdown.
Change-Id: Ia66ebdb436221919081bc4723337c0c7f1e53b09
2017-09-07 10:47:04 -07:00
Tom Cherry
9bde0dc769 Merge "init: log all failures of Service::Start()" 2017-08-28 17:22:11 +00:00
Tom Cherry
702ca9ada2 init: log all failures of Service::Start()
The move to returning Result from Service::Start() for better context
when starting process through init's builtins stops Service::Start()
failures from being logged from other contexts.  This change adds
those logs along with their context.

Test: boot bullhead, fail to start services via `setprop ctl.start`,
      see the expected error in dmesg

Change-Id: I45294f6abf00852f3d4c549a32eaf4920a51e6f0
2017-08-25 11:01:52 -07:00
Mark Salyzyn
73e6b49c0c Switch /data/misc/reboot/last_reboot_reason to persistent property
Switch from /data/misc/reboot/last_reboot_reason to persistent
Android property persist.sys.boot.reason for indicating why the
device is rebooted or shutdown.

persist.sys.boot.reason has a standard as outlined in b/63736262 and
the associated investigation. Made adjustments to the values so that
we did not create a problem even before we started. Compliance is
part of the tests in boot_reason_test.sh.

Test: system/core/bootstat/boot_reason_test.sh
Bug: 64687998
Change-Id: I812c55a12faf7cb7ff92101009be058ad9958d07
2017-08-24 15:13:48 -07:00
Tom Cherry
57a89f3ba0 Merge "init: replace panic() with LOG(FATAL)" 2017-08-18 15:49:46 +00:00
Tom Cherry
d8db7ab80d init: replace panic() with LOG(FATAL)
Test: boot bullhead
Test: Introduce LOG(FATAL) at various points of init and ensure that
      it reboots to the bootloader successfully
Test: Introduce LOG(FATAL) during DoReboot() and ensure that it reboots
      instead of recursing infinitely
Test: Ensure that fatal signals reboot to bootloader

Change-Id: I409005b6fab379df2d635e3e33d2df48a1a97df3
2017-08-17 18:16:51 -07:00
Wei Wang
8c00e42f20 Skip unnecessary sleep during shutdown
Skip sleep if timeout is zero
Skip sleep if first pass umount succeed

Bug: 64768138
Test: reboot
Change-Id: I5ef731611320ade51974b414f7e47520ce36b287
2017-08-16 15:41:12 -07:00
Tom Cherry
557946e57c init: use Result<T> for builtin functions
We currently throw out the return values from builtin functions and
occasionally log errors with no supporting context.  This change uses
the newly introduced Result<T> class to communicate a successful result
or an error back to callers in order to print an error with clear
context when a builtin fails.

Example:

init: Command 'write /sys/class/leds/vibrator/trigger transient' action=init (/init.rc:245) took 0ms and failed: Unable to write to file '/sys/class/leds/vibrator/trigger': open() failed: No such file or directory

Test: boot bullhead
Merged-In: Idc18f331d2d646629c6093c1e0f2996cf9b42aec
Change-Id: Idc18f331d2d646629c6093c1e0f2996cf9b42aec
2017-08-14 14:07:39 -07:00
Tom Cherry
0c8d6d2730 init: split security functions out of init.cpp
This change splits out the selinux initialization and supporting
functionality into selinux.cpp and splits the security related
initialization of the rng, etc to security.cpp.  It also provides
additional documentation for SEPolicy loading as this has been
requested by some teams.

It additionally cleans up sehandle and sehandle_prop.  The former is
static within selinux.cpp and new wrapper functions are created around
selabel_lookup*() to better serve the users.  The latter is moved to
property_service.cpp as it is isolated to that file for its usage.

Test: boot bullhead
Merged-In: Idc95d493cebc681fbe686b5160502f36af149f60
Change-Id: Idc95d493cebc681fbe686b5160502f36af149f60
2017-08-14 09:40:01 -07:00
Tom Cherry
911b9b1d6e init: rename ServiceManager to ServiceList and clean it up
ServiceManager is essentially just a list now that the rest of its
functionality has been moved elsewhere, so the class is renamed
appropriately.

The ServiceList::Find* functions have been cleaned up into a single
smaller interface.
The ServiceList::ForEach functions have been removed in favor of
ServiceList itself being directly iterable.

Test: boot bullhead
Change-Id: Ibd57c103338f03b83d81e8b48ea0e46cd48fd8f0
2017-08-01 11:06:17 -07:00
Tom Cherry
eeee83106b init: move reaping from ServiceManager to signal_handler.cpp
signal_handler.cpp itself needs to be cleaned up, but this is a step
to clean up ServiceManager.

Test: boot bullhead
Change-Id: I81f1e8ac4d09692cfb364bc702cbd3deb61aa55a
2017-08-01 11:06:17 -07:00
Tom Cherry
3b81f2d623 init: move exec operations out of ServiceManager
These can be implemented without ServiceManager, so we remove them and
make ServiceManager slightly less of a God class.

Test: boot bullhead
Test: init unit tests
Change-Id: Ia6e546fe5292255412245256f7d230af4ece135f
2017-08-01 11:06:04 -07:00
Tom Cherry
5938379e91 init: shutdown services in the opposite order that they started
Currently, the order that we kill to services during shutdown is the
order of services_ in ServiceManager and that is defacto the order in
which they were parsed, which is not a very useful ordering.

Related to this, we have seen a few issues during shutdown that may be
related to services with dependencies on other services, where the
dependency is killed first and the dependent service then misbehaves.

This change allows services to keep track of the order in which they
were started and shutdown then uses that information to kill running
services in the opposite order that they were started.

Bug: 64067984
Test: Boot and reboot bullhead

Change-Id: I6b4cacb03aed2a72ae98a346bce41ed5434a09c2
2017-07-26 16:48:06 -07:00
Wei Wang
a01c27eef8 Do not umount roofs even if it is R/W.
Latest device has rootfs instead of "/system" mount point

Bug: 37737296
Test: adb remount, reboot, and check log
Change-Id: I315ecf71e85255fc55c3a80619920b456bad0956
2017-07-25 10:55:10 -07:00
Wei Wang
1be2212319 init: Fire shutdown trigger for thermal shutdown
Recent change in init has bring normal shutdown sequence in
thermal-shutdown condition. This CL will make sure init fire shutdown
trigger where holds custom shutdown actions for vendor SoC/platform.

Bug: 63686426
Test: adb shell setprop sys.powerctl thermal-shutdown
Change-Id: Ieb8579fdf9c30c1a81d60466a7375c9784f3ca98
2017-07-24 13:12:22 -07:00
Keun-young Park
30173874fc init: Do full shutdown even for thermal shutdown
- Skipping SIGTERM / SIGKILL / umount brings race between block
  device driver and fs layer. Do umount before shutting down.
- Reduce timeout to 1 sec for thermal shutdown and skip other time
  taking part like fsck.
- Refactor waiting part to check time in ms so that 1 sec can
  have enough resolution.

bug: 63686426
Test: adb shell setprop sys.powerctl thermal-shutdown, adb shell setprop sys.powerctl reboot and check dmesg
Change-Id: I048bac767b328c8d656a97fe65dde5f2b5bf4ae5
2017-07-19 17:27:05 -07:00
Keun-young Park
c59b822d1f dump stack before kill all
- If problematic process is from user, kill all kills
  it and dump does not show problematic process.

bug: 37737296
Test: reboot and check log
Change-Id: Iaa4f7d12f5a40fa7528c6672567c36e30b140372
2017-07-18 18:52:25 -07:00
Keun-young Park
6e12b3887e Do not umount /vendor, /system, and /oem even if they are R/W.
- /vendor, /system, /oem can be remounted to R/W for development
  purpose.

- In such case, umounting these partitions can lead into some processes
  not running properly during shutdown or blocking umount of fs.

- So skip them. As it is dev feature, it is up to each developer to
  understand the risk. But for normal adb sync - reboot should be ok
  as shutdown involves sync operations.

bug: 37737296
Test: adb remount,reboot, and check last kmsg
Change-Id: Iab6a6374bc558375d359b3b49b14db93d363b1ad
2017-07-17 17:32:26 -07:00
Tom Cherry
ede0d53850 Move Timer from init to libbase
Test: boot bullhead
Test: new libbase unit tests

Change-Id: Ic398a1daa1fe92c10ea7bc1e6ac3f781cee9a5b5
2017-07-10 09:28:24 -07:00
Treehugger Robot
b3915d113d Merge "add "shutdown critical" to service" 2017-07-06 00:40:55 +00:00
Keun-young Park
cccb34fce8 add "shutdown critical" to service
- "shutdown critical" prevents killing the service during
  shutdown. And the service will be started if not running.
- Without it, services will be killed by SIGTERM / SIGKILL during shutdown.
- Even services with "shutdown critical" will be killed if shutdown
  times out.
- Removes ueventd and vold from hard coded list. Each service's rc will
  be updated to add "shutdown critical". watchdogd is still kept in the list.

bug: 37626581
Test: reboot and check last kmsg

Change-Id: Ie8cc699d1efbc59b9a2561bdd40fec64aed5a4bb
2017-07-05 14:55:22 -07:00
Wei Wang
eeab491efd init: Support custom shutdown actions
We have been seeing panics and errors during shutdown sequence in
some vendor's platform, and it is required to disable error handling
during shutdown.

This CL separates the shutdown request to execute another "shutdown"
trigger at the beginning of shutdown stage. And vendor can use this
trigger to add custom commands needed for shutting down gracefully.

Bug: 38203024
Bug: 62084631
Test: device reboot/shutdown
Change-Id: I3fac4ed59f06667d86e477ee55ed391cf113717f
2017-07-05 14:49:57 -07:00