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Commit 2ec6c68c authored by Alexander Potapenko's avatar Alexander Potapenko
Browse files

init.rc: set up a tracing instance for BootReceiver.java 



This instance will be used to monitor the error_report_end tracing
events sent by kernel tools in the case of a memory corruption.

Bug: 172316664
Test: manual runs with KFENCE enabled
Signed-off-by: default avatarAlexander Potapenko <glider@google.com>
Change-Id: Ic1c49a695ff7df4147a7351051db7b6707c86e0a
parent d9b7c9b4

rootdir/init.rc

+9 −0
Original line number Diff line number Diff line
@@ -620,6 +620,15 @@ on late-fs 
    # Load trusted keys from dm-verity protected partitions

    exec -- /system/bin/fsverity_init --load-verified-keys



    # Set up a tracing instance for system_server to monitor error_report_end events.

    # These are sent by kernel tools like KASAN and KFENCE when a memory corruption

    # is detected.

    mkdir /sys/kernel/tracing/instances/bootreceiver 0700 system system

    restorecon_recursive /sys/kernel/tracing/instances/bootreceiver

    write /sys/kernel/tracing/instances/bootreceiver/buffer_size_kb 1

    write /sys/kernel/tracing/instances/bootreceiver/trace_options disable_on_free

    write /sys/kernel/tracing/instances/bootreceiver/events/error_report/error_report_end/enable 1



on post-fs-data

    mark_post_data