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Author SHA1 Message Date
Suren Baghdasaryan 775c050f69 lmkd: measure free swap as available and easily reclaimable memory am: 495db5c643 am: c6753329a2 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2233052

Change-Id: Id55391b3d9d6432258eecfc8eeaf21e3214c4d5b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-10-10 22:40:55 +00:00
Suren Baghdasaryan c6753329a2 lmkd: measure free swap as available and easily reclaimable memory am: 495db5c643 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2233052

Change-Id: I6436a866b2043a35c624c19ac705fe145e8b7e15
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-10-10 21:56:51 +00:00
Suren Baghdasaryan 495db5c643 lmkd: measure free swap as available and easily reclaimable memory 
In the case of ZRAM, SwapFree does not represent the actual free swap
amount because swap space is taken from the free memory or reclaimed.
Therefore use free memory and easily reclaimable memory as an
approximation of how much free swap system can use. Use SwapFree as
a measure of how much swap space the system will consider using. Min
of those two measurements is used to decide how much usable swap the
system still has.

Bug: 238495258
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Ia7b0cc4a744d14c0d6e52603795917cf5824ea15
 2022-10-04 12:53:23 -07:00
Suren Baghdasaryan d8a63ca13d lmkd: Fix UAF caused by calling pid_remove() from the watchdog thread am: a3802f16cf 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/20081396

Change-Id: Ibd250d0d2ec7a98a91b975f3e272c97ed620fc5d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-09-30 00:45:05 +00:00
Suren Baghdasaryan 7f8c6edb33 lmkd: Fix UAF caused by calling pid_remove() from the watchdog thread am: ba9ea6e3d6 am: d5dbec8d23 am: 02af677a49 am: 6057c60d5b 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2235075

Change-Id: Ia3924dc82ffcd6dee53e22f8dcb6e45d2eee6e83
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-09-29 20:09:40 +00:00
Suren Baghdasaryan 6057c60d5b lmkd: Fix UAF caused by calling pid_remove() from the watchdog thread am: ba9ea6e3d6 am: d5dbec8d23 am: 02af677a49 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2235075

Change-Id: I166f3e4f03e886d5a6d9c684267ac46ec1f9d698
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-09-29 19:43:01 +00:00
Suren Baghdasaryan 02af677a49 lmkd: Fix UAF caused by calling pid_remove() from the watchdog thread am: ba9ea6e3d6 am: d5dbec8d23 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2235075

Change-Id: I142a550c5c52a2bb62bcc19a3b9d6112f403efac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-09-29 18:38:52 +00:00
Suren Baghdasaryan d5dbec8d23 lmkd: Fix UAF caused by calling pid_remove() from the watchdog thread am: ba9ea6e3d6 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2235075

Change-Id: I6c720544601c84096a70f9e06d96a46f8973768b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-09-29 18:09:27 +00:00
Suren Baghdasaryan a3802f16cf lmkd: Fix UAF caused by calling pid_remove() from the watchdog thread 
pid_remove() is not a thread-safe function and can be called only from
the main thread. Calling it from the watchdog_callback() executed in the
context of the watchdog thread can cause a use-after-free failure if the
same record is being used by the main thread. Fix this issue by marking
the process record as invalid instead of destroying it. Later on invalid
records will be cleared in kill_one_process() called from the context of
the main thread.

Fixes: f8727745f9 ("lmkd: Remove process record after it is killed by lmkd watchdog")
Bug: 248448498
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I0c7776aea1518c17f0a29904a44b7fe8f33980ca
 2022-09-29 17:47:31 +00:00
Suren Baghdasaryan ba9ea6e3d6 lmkd: Fix UAF caused by calling pid_remove() from the watchdog thread 
pid_remove() is not a thread-safe function and can be called only from
the main thread. Calling it from the watchdog_callback() executed in the
context of the watchdog thread can cause a use-after-free failure if the
same record is being used by the main thread. Fix this issue by marking
the process record as invalid instead of destroying it. Later on invalid
records will be cleared in kill_one_process() called from the context of
the main thread.

Fixes: f8727745f9 ("lmkd: Remove process record after it is killed by lmkd watchdog")
Bug: 248448498
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I0c7776aea1518c17f0a29904a44b7fe8f33980ca
 2022-09-27 14:30:34 -07:00
Suren Baghdasaryan d49a7e77b3 lmkd: Remove process record after it is killed by lmkd watchdog am: 26c9de4e72 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/19748193

Change-Id: I702b7374187ae4916cd6b10110b4bc2573989d5b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-08-26 19:43:36 +00:00
Suren Baghdasaryan 26c9de4e72 lmkd: Remove process record after it is killed by lmkd watchdog 
After lmkd watchdog kills a process, its record should be removed.

Bug: 243567425
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I70bb2a432df8088ebc9865fbc36b065738248d19
 2022-08-25 20:14:23 +00:00
Suren Baghdasaryan b1efc95cf3 lmkd: Remove process record after it is killed by lmkd watchdog am: c555ec6eeb am: 733be36274 am: f3d4403c12 am: 4ccdc36380 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2193801

Change-Id: I88f395e6e82df5c849cdf7e378f0e7afcae1b2ff
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-08-24 18:16:13 +00:00
Suren Baghdasaryan 4ccdc36380 lmkd: Remove process record after it is killed by lmkd watchdog am: c555ec6eeb am: 733be36274 am: f3d4403c12 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2193801

Change-Id: I8ae3ffe1e1ea0876f7029aa683e6f31bdaa78240
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-08-24 17:01:51 +00:00
Suren Baghdasaryan f3d4403c12 lmkd: Remove process record after it is killed by lmkd watchdog am: c555ec6eeb am: 733be36274 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2193801

Change-Id: I83ffc1bc746010c0fd63e4010a1a43020e42443e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-08-24 16:34:25 +00:00
Suren Baghdasaryan 733be36274 lmkd: Remove process record after it is killed by lmkd watchdog am: c555ec6eeb 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2193801

Change-Id: I450caf1f6b317d003bbaeefce35c11f36aa4ba74
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-08-24 16:06:33 +00:00
Suren Baghdasaryan c555ec6eeb lmkd: Remove process record after it is killed by lmkd watchdog 
After lmkd watchdog kills a process, its record should be removed.

Bug: 243567425
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I70bb2a432df8088ebc9865fbc36b065738248d19
 2022-08-23 15:28:53 -07:00
Ioannis Ilkos 7009c9dcd8 Remove kill_one_process tracepoint from lmkd am: b9d0592bba am: f8727745f9 am: 7324be6c63 am: fa8b9285b1 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2175442

Change-Id: I0590fa2a5da3ea726c05f2c63c46754620816760
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-08-08 19:40:08 +00:00
Ioannis Ilkos fa8b9285b1 Remove kill_one_process tracepoint from lmkd am: b9d0592bba am: f8727745f9 am: 7324be6c63 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2175442

Change-Id: I4c4f4bb8136c0e755e3315719ef7190ba9130315
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-08-08 19:11:02 +00:00
Ioannis Ilkos 7324be6c63 Remove kill_one_process tracepoint from lmkd am: b9d0592bba am: f8727745f9 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2175442

Change-Id: I267d82e4358bce89aa601fb9f39eb712dce3d9b6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-08-08 18:46:27 +00:00
Ioannis Ilkos f8727745f9 Remove kill_one_process tracepoint from lmkd am: b9d0592bba 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2175442

Change-Id: I1fe55a6a05eae1be2e7acb76d71e8c2f280560ce
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-08-08 18:29:13 +00:00
Ioannis Ilkos b9d0592bba Remove kill_one_process tracepoint from lmkd 
We already emit a richer slice (including pid and oom score) so there's
no reason for the additional print event

Bug: 195085238
Change-Id: I1140f0287934e5f0abdeeb64554a249c4c940def
 2022-08-04 14:45:24 +01:00
Ken Chen d1200b6f6e Merge "Rename gpu_mem.o to gpuMem.o" am: 310fa3ab1b am: dd131835e9 am: 158b031098 am: 43fb4e1326 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2147763

Change-Id: I71d9afbd7932d8f615d652374f3d91d59754997c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-21 23:34:32 +00:00
Ken Chen 43fb4e1326 Merge "Rename gpu_mem.o to gpuMem.o" am: 310fa3ab1b am: dd131835e9 am: 158b031098 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2147763

Change-Id: I8209b1ab11dd02346459f898fb682395a2f5ce61
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-21 23:18:59 +00:00
Ken Chen 158b031098 Merge "Rename gpu_mem.o to gpuMem.o" am: 310fa3ab1b am: dd131835e9 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2147763

Change-Id: I278afc525556e14993be4a5002e515adc837ede9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-21 22:56:23 +00:00
Ken Chen dd131835e9 Merge "Rename gpu_mem.o to gpuMem.o" am: 310fa3ab1b 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2147763

Change-Id: If29b92d5706323d83b8f4c1098e680f1c0f93a67
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-21 22:21:40 +00:00
Ken Chen 310fa3ab1b Merge "Rename gpu_mem.o to gpuMem.o" 2022-07-21 13:43:50 +00:00
Suren Baghdasaryan 433ed64df9 lmkd: Fix the text of the warning when pthread_setschedparam fails am: a0b25851c7 am: dbee4be68e 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/19353948

Change-Id: I6a4ee2dd4c1ffe7642a8c8436eb361a188ff65e1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-20 22:04:03 +00:00
Suren Baghdasaryan a1c8b19ad0 [conflict] [conflict] lmkd: set normal scheduling policy for reaper threads am: ab4c6d86e0 am: 20f830a109 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/19368099

Change-Id: I0c30e5054f3a9dbdc48911ba7f525810eaa397e3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-20 20:49:55 +00:00
Suren Baghdasaryan dbee4be68e lmkd: Fix the text of the warning when pthread_setschedparam fails am: a0b25851c7 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/19353948

Change-Id: I7da59c567eb4827b8ea4c214037672c2a9a65bc9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-20 20:18:24 +00:00
Suren Baghdasaryan 3930948948 lmkd: Fix the text of the warning when pthread_setschedparam fails am: a0b25851c7 am: 41a4a92781 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/19353948

Change-Id: I8aa4a78176663cfc45dd5ecb4d39197556d1cdea
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-20 20:17:10 +00:00
Suren Baghdasaryan 14588b3000 [conflict] lmkd: set normal scheduling policy for reaper threads am: ab4c6d86e0 am: a263af2be3 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/19353947

Change-Id: Ia79e2cf64c18688e04fe892f45be492e31af0753
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-20 18:35:32 +00:00
Suren Baghdasaryan 20f830a109 [conflict] lmkd: set normal scheduling policy for reaper threads am: ab4c6d86e0 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/19353947

Change-Id: Ic2f65feecbdfda400145ccd90d3f50ed71435380
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-20 18:12:26 +00:00
Suren Baghdasaryan 41a4a92781 lmkd: Fix the text of the warning when pthread_setschedparam fails am: a0b25851c7 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/19353948

Change-Id: I72ee11e88db52242e3f2f039bb73077e92accde9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-20 18:00:53 +00:00
Suren Baghdasaryan a263af2be3 lmkd: set normal scheduling policy for reaper threads am: ab4c6d86e0 
Original change: https://googleplex-android-review.googlesource.com/c/platform/system/memory/lmkd/+/19353947

Change-Id: I772a05dbbe6ccd662ff08e8aa95c017b22315c21
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-20 18:00:52 +00:00
Suren Baghdasaryan a0b25851c7 lmkd: Fix the text of the warning when pthread_setschedparam fails 
Fix the text of the warning when pthread_setschedparam fails to set
SCHED_OTHER scheduling policy for a reaper thread.

Bug: 237180716
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I1b04713d145f4f3c243f16f932c753f5b06d48e6
 2022-07-20 11:16:43 +08:00
Suren Baghdasaryan ab4c6d86e0 lmkd: set normal scheduling policy for reaper threads 
Reaper threads can take considerable time to free target's
memory running at RT priority that they inherit from LMKD.
This might prevent other critical tasks from being scheduled
while reaper threads are active.
Explicitly set reaper threads to run under normal scheduling
policy but set their nice value to ANDROID_PRIORITY_HIGHEST.

Bug: 237180716
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Idad817e698ae1d5ac6cee5aa3281c69c7e0d257f
 2022-07-20 11:16:06 +08:00
Treehugger Robot f6c8f3edac Merge "lmkd: Add clang-format upload hook" am: 8b4ad27706 am: db9a391406 am: 1fd840566e am: d68aa4a89c 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2154453

Change-Id: I84b932631027da1c0737bb6f0f13de03355ae9c8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-14 21:37:36 +00:00
Treehugger Robot d68aa4a89c Merge "lmkd: Add clang-format upload hook" am: 8b4ad27706 am: db9a391406 am: 1fd840566e 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2154453

Change-Id: Ib329f15a2fa5fd797c68f9fd0ac37d3a0684b572
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-14 21:20:44 +00:00
Treehugger Robot 1fd840566e Merge "lmkd: Add clang-format upload hook" am: 8b4ad27706 am: db9a391406 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2154453

Change-Id: Ic25b988fc2e82d36f853c379870986e3178323f9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-14 21:02:34 +00:00
Treehugger Robot db9a391406 Merge "lmkd: Add clang-format upload hook" am: 8b4ad27706 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2154453

Change-Id: I9c568f2690cfca9f3e469a54f62718920b39c2db
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-14 20:45:46 +00:00
Treehugger Robot 8b4ad27706 Merge "lmkd: Add clang-format upload hook" 2022-07-14 20:26:12 +00:00
Kalesh Singh 08bb956823 lmkd: Add clang-format upload hook 
Check code formatting on upload.

Bug: N/A
Test: repo upload
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
Change-Id: I7c849655539ac60e48cf2b4c25b33a1d222a6cfe
 2022-07-14 11:18:20 -07:00
Ken Chen 4c18e91f22 Rename gpu_mem.o to gpuMem.o 
Underscore character may cause bpf prog/map naming collision. For
example, x.o with map y_z and x_y.o with map z both result in x_y_z
prog/map name, which should be prevented during compile-time.

aosp/2147825 will prohibit underscore character in bpf source name
(source name derives the obj name). Existing bpf modules with underscore
characters in source name need to be updated accordingly.

Bug: 236706995
Test: adb root; adb shell ls -l /sys/fs/bpf/ | grep gpuMem
Change-Id: I213624e59ce1bca6ee7c22028504f2d51e9c50df
 2022-07-08 19:09:50 +08:00
Yuming Han 1a19315add lmkd : Fixed running wrong for Go devices when use_minfree_levels is TRUE am: ed8fc168e6 am: f3f9ff6e01 am: 60325c06b4 am: b80303c377 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2144719

Change-Id: I62c758560792bcbb6bcd627e4eb7f1f4a2449a81
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-07 19:51:50 +00:00
Yuming Han b80303c377 lmkd : Fixed running wrong for Go devices when use_minfree_levels is TRUE am: ed8fc168e6 am: f3f9ff6e01 am: 60325c06b4 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2144719

Change-Id: I232c2f0afd705838e99896740f77c6e8a32c8f13
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-07 19:36:13 +00:00
Suren Baghdasaryan 0932e5c765 lmkd: Fix the text of the warning when pthread_setschedparam fails am: 508e73e105 am: 4a4e1590f1 am: 8d1acb0268 am: 45c03b00f7 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2147680

Change-Id: I510eb3be2cb23e3e6381198ce31819409889151f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-07 19:17:11 +00:00
Yuming Han 60325c06b4 lmkd : Fixed running wrong for Go devices when use_minfree_levels is TRUE am: ed8fc168e6 am: f3f9ff6e01 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2144719

Change-Id: Iee575f456068a7cf98d57a4fbbbcbf1128205c7f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-07 19:09:44 +00:00
Suren Baghdasaryan 45c03b00f7 lmkd: Fix the text of the warning when pthread_setschedparam fails am: 508e73e105 am: 4a4e1590f1 am: 8d1acb0268 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2147680

Change-Id: I2c79cdb3817c211f745950269cb3ee0cd8f78e55
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-07 18:53:54 +00:00
Yuming Han f3f9ff6e01 lmkd : Fixed running wrong for Go devices when use_minfree_levels is TRUE am: ed8fc168e6 
Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2144719

Change-Id: I5b112f62879b9b577bdeb61939e629984e172f5a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
 2022-07-07 18:45:02 +00:00