Commit graph

7 commits

Author SHA1 Message Date
Suren Baghdasaryan
2079c5f0c9 Replace writepid with task_profiles command for cgroup migration
writepid command usage to join a cgroup has been deprecated in favor
of a more flexible approach using task_profiles. This way cgroup path
is not hardcoded and cgroup changes can be easily made. Replace
writepid with task_profiles command to migrate between cgroups.

Bug: 191283136
Test: build and boot
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I945c634dfa7621437d8ea3981bce370d680b7371
2021-06-24 17:24:20 +00:00
Josh Gao
81c94cdce6 Start tombstoned early in post-fs-data.
Bug: http://b/169659307
Test: manual
Change-Id: Ie19de31e7e2b6cd43402cfd3a2e9274728e9e6b4
2020-10-01 14:25:36 -07:00
Josh Gao
8ad965ae5e tombstoned: start immediately after /data is mounted.
Catch as many early-boot crashes as we can by starting tombstoned
immediately after /data is mounted.

Bug: http://b/139864948
Test: adb shell su 0 dmesg | grep "starting service"
Change-Id: I7f8821102191a445e87020f3efa59a2e0620d9db
2019-08-22 15:19:44 -07:00
Narayan Kamath
922f6b22fc tombstoned: Support java trace dumps.
The changes here involve :
- Creating and opening a new socket to receive trace dump requests on. Having
  different sockets allows us to install different sets of access control rules.

- A minor refactor to allow us to share common pieces of implementation
  between the java and native dumping code. This will also allow us to
  add a unit test for all file / directory related logic.

There are two java trace specific additions here :
- We use SO_PEERCRED instead of trusting the PID written to the seocket
  because requests come in from untrusted processes.
- Java trace dumps are not interceptible.

kJavaTraceDumpsEnabled is set to false for now but the value of the flag
will be flipped in a future change.

Bug: 32064548
Test: Manual; Currently working on a unit_test for CrashType.

Change-Id: I1d62cc7a7035fd500c3e2b831704a2934d725e35
2017-05-18 12:01:14 +00:00
Josh Gao
0ad5107e51 Actually don't start tombstoned until /data is mounted.
Bug: http://b/34461270
Test: boot is actually faster
Test: tombstoned still started by init
Change-Id: I4976abef108bbb6fad264f9b68cbc1fba711085b
2017-01-23 16:01:14 -08:00
Josh Gao
42a0fed78b init: don't start tombstoned until /data is mounted.
When vold mounts the encrypted /data partition, it first checks for and
kills processes that have open fds to the tmpfs placeholder at /data.
This resulted in a 20 second boot-time regression (vold's timeout period)
when tombstoned was started before vold.

Bug: http://b/34461270
Test: boot is faster, no messages from vold in console spew
Test: tombstoned still started by init
Change-Id: Ib5e9ddb05f40c9da852f00e103861c6ff2d94888
2017-01-20 13:18:51 -08:00
Josh Gao
cbe70cb0a8 debuggerd: advance our amazing bet.
Remove debuggerd in favor of a helper process that gets execed by
crashing processes.

Bug: http://b/30705528
Test: debuggerd_test
Change-Id: I9906c69473989cbf7fe5ea6cccf9a9c563d75906
2017-01-17 13:57:57 -08:00