Cgroup attributes like io.weight or io.bfq.weight only exist if the
corresponding I/O scheduler has been loaded. Hence add support for
ignoring failures to write to a cgroup attribute that does not exist.
Bug: 213617178
Test: This patch has been tested in combination with patch "Migrate the blkio controller to the cgroup v2 hierarchy".
Change-Id: I5debafabc4dd430a1b98ea343bf3740c764edcc3
Signed-off-by: Bart Van Assche <bvanassche@google.com>
This adds two new diagnostics. First, signalfd reads are now non-blocking. If the read takes more than 10 seconds, we log an error.
Second, init now wakes up from epoll() every 10 seconds. If it waits on an "exec" command for more than 10 seconds, it logs an error.
This change will be reverted as soon as we get feedback.
Bug: 223076262
Test: device boots
Change-Id: I7ee98d159599217a641b3de2564a92c2435f57ef
Some systems (originally only Windows) define their own
NO_ERROR macro that overlaps with the enumerator from Errors.h.
The enumerator is only defined if the macro was not.
Bug: 224644083
Test: m
Change-Id: Iee0932b5259b3bfcf6494656b27e6e7488319f5c
To keep libutils (and consequently libbinder) as compact
and portable as possible, this disables call stacks on all
operating systems except Linux and Android.
Bug: 224644083
Test: m
Change-Id: I0d77c49022e852c2b8607f555174c4f9d54ed3df
This patch makes the intent of the code more clear without changing any
functionality since uid_t and gid_t are both aliases for uint32_t on
Android systems. See also
https://cs.android.com/android/platform/superproject/+/master:bionic/libc/include/sys/types.h
Bug: 213617178
Test: Compile-tested only.
Change-Id: Ib5012456a7357e79368f00e71e9a280fd6f96063
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Cgroup attributes are set from three different contexts:
(1) From the process that creates the cgroup directories. These
processes are /system/bin/init, zygote and zygote64.
(2) From the created process. Some but not all created processes have
user ID and/or group ID 'system'.
(3) The system_server process modifies certain cgroup attributes from
other processes.
Allow all processes from the system group, including system_server, to
modify cgroup attributes from other processes. As one can see in
init.rc, that file includes commands for granting the system group
write permission for blkcg attributes. See also
https://cs.android.com/android/platform/superproject/+/master:system/core/rootdir/init.rc
Bug: 213617178
Test: Verified in the Cuttlefish emulator that this patch makes the
Test: io.bfq.weight write errors disappear from logcat.
Change-Id: Idbfb49c25afec12b21daea7a17db5322bc981ff0
Signed-off-by: Bart Van Assche <bvanassche@google.com>
cgroups.json causes the following changes to be applied twice to
/sys/fs/cgroup: change user ID to system, change group ID to system and
change mode to 0755. Apply these settings once instead of twice.
Bug: 213617178
Test: Ran ls -ld /sys/fs/cgroup in Cuttlefish.
Change-Id: Ieb953c186c027b989599cbbaa70a9c9324678cdf
Signed-off-by: Bart Van Assche <bvanassche@google.com>
The functionality moved from the Unwinder object to the MapInfo
object and means that the individual unreadable files can be
displayed now.
Included adding the unreadable elfs per thread in the protobuf.
Updated the unwinder test.
Test: All unit tests pass.
Change-Id: I7140bde16938736da005f926e10bbdb3dbc0f6f5
This patch adds a new property, 'dev.mnt.root.<mount_point>', which provides,
for example of /data,
1. dm-N
dev.mnt.dev.data = dm-N
dev.mnt.blk.data = sdaN or mmcblk0pN
dev.mnt.rootdisk.data = sda or mmcblk0
2. sdaN or mmcblk0pN
dev.mnt.dev.data = sdaN or mmcblk0pN
dev.mnt.blk.data = sdaN or mmcblk0pN
dev.mnt.rootdisk.data = sda or mmcblk0
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: I0a58a62d416f966f26b5de04112c2f9a7eceb22c
Current code is not portable beyond SCSI devices (e.g., UFS).
For example, eMMC and NVMe devices fail due to their extra postfix.
Change its logic to rewind each character until "queue" directory appears.
Test: Confirm md0p1, sda20, nvme0n1p3, mmcblk0p3 are all handled well.
Change-Id: I585ccf2d4a72f6ef8ecb203acdd72a1e32d3e749
Signed-off-by: Juhyung Park <qkrwngud825@gmail.com>
TRUSTY_SEND_SECURE operation was added to Trusty Linux driver by
aosp/1930989.
Bug: 224563842
Test: m libtrusty
Change-Id: Ic922ec177a8d35dba351415ab429216a1931a64d
This reverts commit 471643a909.
Reason for revert: Given https://r.android.com/1960063, it is safe to revert this diagnostics patch
Change-Id: Ib3600c1982ee10a0204ac0fdbc3e160c2833ed07
This code was a bit confusing because Android runs with an old debug
mode on. The flag around this is removed to make it more clear what
is going on, and the log is promoted D -> W.
Bug: N/A
Test: boot, check logs
Change-Id: I4645b1a7b8e252336a6f9482ce6b57e1b907619d
These aren't actually duplicate interfaces because we
are overriding the service so interfaces in the original
definition will never be used.
Test: Verify 'm dist' works without complaining about
duplicate interfaces.
Change-Id: Iab5e1d8bb4cb7d5b2608028c3cee73af94c47424
/sys/class/block covers all of dm-[0-9], sd[a-z], mmcblk[0-9].
Use it instead of /sys/devices/virtual/block, which only covers dm
devices.
This allows f2fs tunings to be applied more reliably regardless of
how the userdata partition is set up.
Do note that while everything under /sys/devices/virtual/block are
expected to have correct SELinux labels by AOSP, some under
/sys/class/block are not as it's symlinked to platform-specific paths,
and it is up to the vendors to label them correctly.
Test: Confirm entries under /dev/sys aren't dangling and cp_interval,
gc_urgent_sleep_time, iostat_enable and discard_max_bytes are
all set up properly under FBE, FDE and unencrypted.
Change-Id: I089af5bc068445f33919df6659671e50456d49f9
Signed-off-by: Juhyung Park <qkrwngud825@gmail.com>
Bug: http://b/194128476
If CLANG_COVERAGE_CONTINUOUS_MODE is set, enable continuous mode by
adding '%c' to LLVM_PROFILE_FILE.
Test: CLANG_COVERAGE_CONTINUOUS_MODE m and verify continuous mode works.
Change-Id: I8ace01f2aeaef62857e73308b04a535739171b53
Method is needed for further use in statsd mapping process.
Bug: 217695033
Test: atest installd_service_test
Change-Id: I508a58da5f8d2e32264002db515425134d18aece
The private methods in class BatteryMonitor do not use the 'this'
pointer. Hence convert these into static nonmember functions.
Test: Compile-tested only.
Change-Id: I4b9b76c9697f1db894ba9fb939ce096ee6b7ff3b
Signed-off-by: Bart Van Assche <bvanassche@google.com>
Not all readFromFile() callers pass an empty string. Make sure that
readFromFile() returns 0 (failure) if the *buf argument is not empty and
if reading fails.
Fixes: 3217c5c7d9 ("batterymonitor: simplify readFromFile and use std::string buffers")
Test: Compile-tested only.
Change-Id: I6f329491f8aa4a6d378eb7c3cbc17038eb6aa64d
Signed-off-by: Bart Van Assche <bvanassche@google.com>
