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Commit bf5e6b1a authored by Treehugger Robot's avatar Treehugger Robot Committed by Gerrit Code Review
Browse files

Merge "Update filesystem permissions in atrace.rc to give selinux control."

parents 7c7a04c9 385f7ee9

cmds/atrace/atrace.rc

+76 −131
Original line number Original line Diff line number Diff line
@@ -6,141 +6,86 @@ on post-fs 
    chmod 0222 /sys/kernel/debug/tracing/trace_marker

    chmod 0222 /sys/kernel/debug/tracing/trace_marker

    chmod 0222 /sys/kernel/tracing/trace_marker

    chmod 0222 /sys/kernel/tracing/trace_marker





# Allow the shell group to enable (some) kernel tracing.

# Grant unix world read/write permissions to kernel tracepoints.

    chown root shell /sys/kernel/debug/tracing/trace_clock

# Access control to these files is now entirely in selinux policy.

    chown root shell /sys/kernel/tracing/trace_clock

    chmod 0666 /sys/kernel/debug/tracing/trace_clock

    chown root shell /sys/kernel/debug/tracing/buffer_size_kb

    chmod 0666 /sys/kernel/tracing/trace_clock

    chown root shell /sys/kernel/tracing/buffer_size_kb

    chmod 0666 /sys/kernel/debug/tracing/buffer_size_kb

    chown root shell /sys/kernel/debug/tracing/options/overwrite

    chmod 0666 /sys/kernel/tracing/buffer_size_kb

    chown root shell /sys/kernel/tracing/options/overwrite

    chmod 0666 /sys/kernel/debug/tracing/options/overwrite

    chown root shell /sys/kernel/debug/tracing/options/print-tgid

    chmod 0666 /sys/kernel/tracing/options/overwrite

    chown root shell /sys/kernel/tracing/options/print-tgid

    chmod 0666 /sys/kernel/debug/tracing/options/print-tgid

    chown root shell /sys/kernel/debug/tracing/saved_cmdlines_size

    chmod 0666 /sys/kernel/tracing/options/print-tgid

    chown root shell /sys/kernel/tracing/saved_cmdlines_size

    chmod 0666 /sys/kernel/debug/tracing/saved_cmdlines_size

    chown root shell /sys/kernel/debug/tracing/events/sched/sched_switch/enable

    chmod 0666 /sys/kernel/tracing/saved_cmdlines_size

    chown root shell /sys/kernel/tracing/events/sched/sched_switch/enable

    chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_switch/enable

    chown root shell /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable

    chmod 0666 /sys/kernel/tracing/events/sched/sched_switch/enable

    chown root shell /sys/kernel/tracing/events/sched/sched_wakeup/enable

    chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable

    chown root shell /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable

    chmod 0666 /sys/kernel/tracing/events/sched/sched_wakeup/enable

    chown root shell /sys/kernel/tracing/events/sched/sched_blocked_reason/enable

    chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable

    chown root shell /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable

    chmod 0666 /sys/kernel/tracing/events/sched/sched_blocked_reason/enable

    chown root shell /sys/kernel/tracing/events/sched/sched_cpu_hotplug/enable

    chmod 0666 /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable

    chown root shell /sys/kernel/debug/tracing/events/cgroup/enable

    chmod 0666 /sys/kernel/tracing/events/sched/sched_cpu_hotplug/enable

    chown root shell /sys/kernel/tracing/events/cgroup/enable

    chmod 0666 /sys/kernel/debug/tracing/events/cgroup/enable

    chown root shell /sys/kernel/debug/tracing/events/power/cpu_frequency/enable

    chmod 0666 /sys/kernel/tracing/events/cgroup/enable

    chown root shell /sys/kernel/tracing/events/power/cpu_frequency/enable

    chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable

    chown root shell /sys/kernel/debug/tracing/events/power/cpu_idle/enable

    chmod 0666 /sys/kernel/tracing/events/power/cpu_frequency/enable

    chown root shell /sys/kernel/tracing/events/power/cpu_idle/enable

    chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_idle/enable

    chown root shell /sys/kernel/debug/tracing/events/power/clock_set_rate/enable

    chmod 0666 /sys/kernel/tracing/events/power/cpu_idle/enable

    chown root shell /sys/kernel/tracing/events/power/clock_set_rate/enable

    chmod 0666 /sys/kernel/debug/tracing/events/power/clock_set_rate/enable

    chown root shell /sys/kernel/debug/tracing/events/power/cpu_frequency_limits/enable

    chmod 0666 /sys/kernel/tracing/events/power/clock_set_rate/enable

    chown root shell /sys/kernel/tracing/events/power/cpu_frequency_limits/enable

    chmod 0666 /sys/kernel/debug/tracing/events/power/cpu_frequency_limits/enable

    chown root shell /sys/kernel/debug/tracing/events/cpufreq_interactive/enable

    chmod 0666 /sys/kernel/tracing/events/power/cpu_frequency_limits/enable

    chown root shell /sys/kernel/tracing/events/cpufreq_interactive/enable

    chmod 0666 /sys/kernel/debug/tracing/events/cpufreq_interactive/enable

    chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable

    chmod 0666 /sys/kernel/tracing/events/cpufreq_interactive/enable

    chown root shell /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable

    chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable

    chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable

    chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable

    chown root shell /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable

    chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable

    chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable

    chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable

    chown root shell /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable

    chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable

    chown root shell /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable

    chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable

    chown root shell /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable

    chmod 0666 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable

    chown root shell /sys/kernel/debug/tracing/events/binder/binder_transaction/enable

    chmod 0666 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable

    chown root shell /sys/kernel/tracing/events/binder/binder_transaction/enable

    chmod 0666 /sys/kernel/debug/tracing/tracing_on

    chown root shell /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable

    chmod 0666 /sys/kernel/tracing/tracing_on

    chown root shell /sys/kernel/tracing/events/binder/binder_transaction_received/enable

    chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_transaction/enable

    chown root shell /sys/kernel/debug/tracing/events/binder/binder_lock/enable

    chmod 0666 /sys/kernel/tracing/events/binder/binder_transaction/enable

    chown root shell /sys/kernel/tracing/events/binder/binder_lock/enable

    chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable

    chown root shell /sys/kernel/debug/tracing/events/binder/binder_locked/enable

    chmod 0666 /sys/kernel/tracing/events/binder/binder_transaction_received/enable

    chown root shell /sys/kernel/tracing/events/binder/binder_locked/enable

    chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_lock/enable

    chown root shell /sys/kernel/debug/tracing/events/binder/binder_unlock/enable

    chmod 0666 /sys/kernel/tracing/events/binder/binder_lock/enable

    chown root shell /sys/kernel/tracing/events/binder/binder_unlock/enable

    chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_locked/enable

    chown root shell /sys/kernel/debug/tracing/events/lowmemorykiller/enable

    chmod 0666 /sys/kernel/tracing/events/binder/binder_locked/enable

    chown root shell /sys/kernel/tracing/events/lowmemorykiller/enable

    chmod 0666 /sys/kernel/debug/tracing/events/binder/binder_unlock/enable



    chmod 0666 /sys/kernel/tracing/events/binder/binder_unlock/enable

    chown root shell /sys/kernel/debug/tracing/tracing_on

    chmod 0666 /sys/kernel/debug/tracing/events/i2c/enable

    chown root shell /sys/kernel/tracing/tracing_on

    chmod 0666 /sys/kernel/tracing/events/i2c/enable



    chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_read/enable

    chmod 0664 /sys/kernel/debug/tracing/trace_clock

    chmod 0666 /sys/kernel/tracing/events/i2c/i2c_read/enable

    chmod 0664 /sys/kernel/tracing/trace_clock

    chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_write/enable

    chmod 0664 /sys/kernel/debug/tracing/buffer_size_kb

    chmod 0666 /sys/kernel/tracing/events/i2c/i2c_write/enable

    chmod 0664 /sys/kernel/tracing/buffer_size_kb

    chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_result/enable

    chmod 0664 /sys/kernel/debug/tracing/options/overwrite

    chmod 0666 /sys/kernel/tracing/events/i2c/i2c_result/enable

    chmod 0664 /sys/kernel/tracing/options/overwrite

    chmod 0666 /sys/kernel/debug/tracing/events/i2c/i2c_reply/enable

    chmod 0664 /sys/kernel/debug/tracing/options/print-tgid

    chmod 0666 /sys/kernel/tracing/events/i2c/i2c_reply/enable

    chmod 0664 /sys/kernel/tracing/options/print-tgid

    chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_read/enable

    chmod 0664 /sys/kernel/debug/tracing/saved_cmdlines_size

    chmod 0666 /sys/kernel/tracing/events/i2c/smbus_read/enable

    chmod 0664 /sys/kernel/tracing/saved_cmdlines_size

    chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_write/enable

    chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_switch/enable

    chmod 0666 /sys/kernel/tracing/events/i2c/smbus_write/enable

    chmod 0664 /sys/kernel/tracing/events/sched/sched_switch/enable

    chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_result/enable

    chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_wakeup/enable

    chmod 0666 /sys/kernel/tracing/events/i2c/smbus_result/enable

    chmod 0664 /sys/kernel/tracing/events/sched/sched_wakeup/enable

    chmod 0666 /sys/kernel/debug/tracing/events/i2c/smbus_reply/enable

    chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_blocked_reason/enable

    chmod 0666 /sys/kernel/tracing/events/i2c/smbus_reply/enable

    chmod 0664 /sys/kernel/tracing/events/sched/sched_blocked_reason/enable

    chmod 0666 /sys/kernel/debug/tracing/events/lowmemorykiller/enable

    chmod 0664 /sys/kernel/debug/tracing/events/sched/sched_cpu_hotplug/enable

    chmod 0666 /sys/kernel/tracing/events/lowmemorykiller/enable

    chmod 0664 /sys/kernel/tracing/events/sched/sched_cpu_hotplug/enable

    chmod 0664 /sys/kernel/debug/tracing/events/cgroup/enable

    chmod 0664 /sys/kernel/tracing/events/cgroup/enable

    chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_frequency/enable

    chmod 0664 /sys/kernel/tracing/events/power/cpu_frequency/enable

    chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_idle/enable

    chmod 0664 /sys/kernel/tracing/events/power/cpu_idle/enable

    chmod 0664 /sys/kernel/debug/tracing/events/power/clock_set_rate/enable

    chmod 0664 /sys/kernel/tracing/events/power/clock_set_rate/enable

    chmod 0664 /sys/kernel/debug/tracing/events/power/cpu_frequency_limits/enable

    chmod 0664 /sys/kernel/tracing/events/power/cpu_frequency_limits/enable

    chmod 0664 /sys/kernel/debug/tracing/events/cpufreq_interactive/enable

    chmod 0664 /sys/kernel/tracing/events/cpufreq_interactive/enable

    chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable

    chmod 0664 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_begin/enable

    chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable

    chmod 0664 /sys/kernel/tracing/events/vmscan/mm_vmscan_direct_reclaim_end/enable

    chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable

    chmod 0664 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_wake/enable

    chmod 0664 /sys/kernel/debug/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable

    chmod 0664 /sys/kernel/tracing/events/vmscan/mm_vmscan_kswapd_sleep/enable

    chmod 0664 /sys/kernel/debug/tracing/tracing_on

    chmod 0664 /sys/kernel/tracing/tracing_on

    chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_transaction/enable

    chmod 0664 /sys/kernel/tracing/events/binder/binder_transaction/enable

    chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_transaction_received/enable

    chmod 0664 /sys/kernel/tracing/events/binder/binder_transaction_received/enable

    chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_lock/enable

    chmod 0664 /sys/kernel/tracing/events/binder/binder_lock/enable

    chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_locked/enable

    chmod 0664 /sys/kernel/tracing/events/binder/binder_locked/enable

    chmod 0664 /sys/kernel/debug/tracing/events/binder/binder_unlock/enable

    chmod 0664 /sys/kernel/tracing/events/binder/binder_unlock/enable

    chmod 0664 /sys/kernel/debug/tracing/events/i2c/enable

    chmod 0664 /sys/kernel/tracing/events/i2c/enable

    chmod 0664 /sys/kernel/debug/tracing/events/i2c/i2c_read/enable

    chmod 0664 /sys/kernel/tracing/events/i2c/i2c_read/enable

    chmod 0664 /sys/kernel/debug/tracing/events/i2c/i2c_write/enable

    chmod 0664 /sys/kernel/tracing/events/i2c/i2c_write/enable

    chmod 0664 /sys/kernel/debug/tracing/events/i2c/i2c_result/enable

    chmod 0664 /sys/kernel/tracing/events/i2c/i2c_result/enable

    chmod 0664 /sys/kernel/debug/tracing/events/i2c/i2c_reply/enable

    chmod 0664 /sys/kernel/tracing/events/i2c/i2c_reply/enable

    chmod 0664 /sys/kernel/debug/tracing/events/i2c/smbus_read/enable

    chmod 0664 /sys/kernel/tracing/events/i2c/smbus_read/enable

    chmod 0664 /sys/kernel/debug/tracing/events/i2c/smbus_write/enable

    chmod 0664 /sys/kernel/tracing/events/i2c/smbus_write/enable

    chmod 0664 /sys/kernel/debug/tracing/events/i2c/smbus_result/enable

    chmod 0664 /sys/kernel/tracing/events/i2c/smbus_result/enable

    chmod 0664 /sys/kernel/debug/tracing/events/i2c/smbus_reply/enable

    chmod 0664 /sys/kernel/tracing/events/i2c/smbus_reply/enable

    chmod 0664 /sys/kernel/debug/tracing/events/lowmemorykiller/enable

    chmod 0664 /sys/kernel/tracing/events/lowmemorykiller/enable





# Tracing disabled by default

# Tracing disabled by default

    write /sys/kernel/debug/tracing/tracing_on 0

    write /sys/kernel/debug/tracing/tracing_on 0

    write /sys/kernel/tracing/tracing_on 0

    write /sys/kernel/tracing/tracing_on 0





# Allow only the shell group to read and truncate the kernel trace.

# Read and truncate the kernel trace.

    chown root shell /sys/kernel/debug/tracing/trace

    chmod 0666 /sys/kernel/debug/tracing/trace

    chown root shell /sys/kernel/tracing/trace

    chmod 0666 /sys/kernel/tracing/trace

    chmod 0660 /sys/kernel/debug/tracing/trace

    chmod 0660 /sys/kernel/tracing/trace





on property:persist.debug.atrace.boottrace=1

on property:persist.debug.atrace.boottrace=1

    start boottrace

    start boottrace

cmds/atrace/atrace_userdebug.rc

+34 −38
Original line number Original line Diff line number Diff line 
## Permissions to allow additional system-wide tracing to the kernel trace buffer.

## Permissions to allow additional system-wide tracing to the kernel trace buffer.

## The default list of permissions is set in frameworks/native/cmds/atrace/atrace.rc

## The default list of permissions is set in frameworks/native/cmds/atrace/atrace.rc





# Allow the shell group to enable kernel tracepoints:

# Grant unix world read/write permissions to enable kernel tracepoints.

# Access control to these files is now entirely in selinux policy.





on post-fs

on post-fs

    chown root shell /sys/kernel/debug/tracing/events/sync/enable

    chmod 0666 /sys/kernel/tracing/events/sync/enable

    chown root shell /sys/kernel/debug/tracing/events/workqueue/enable

    chmod 0666 /sys/kernel/debug/tracing/events/sync/enable

    chown root shell /sys/kernel/debug/tracing/events/regulator/enable

    chmod 0666 /sys/kernel/tracing/events/workqueue/enable

    chown root shell /sys/kernel/debug/tracing/events/pagecache/enable

    chmod 0666 /sys/kernel/debug/tracing/events/workqueue/enable

    chmod 0666 /sys/kernel/tracing/events/regulator/enable

    chmod 0666 /sys/kernel/debug/tracing/events/regulator/enable

    chmod 0666 /sys/kernel/tracing/events/pagecache/enable

    chmod 0666 /sys/kernel/debug/tracing/events/pagecache/enable





    # irq

    # irq

    chown root shell /sys/kernel/debug/tracing/events/irq/enable

    chmod 0666 /sys/kernel/tracing/events/irq/enable

    chown root shell /sys/kernel/debug/tracing/events/ipi/enable

    chmod 0666 /sys/kernel/debug/tracing/events/irq/enable

    chmod 0666 /sys/kernel/tracing/events/ipi/enable

    chmod 0666 /sys/kernel/debug/tracing/events/ipi/enable





    # disk

    # disk

    chown root shell /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_enter/enable

    chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_sync_file_enter/enable

    chown root shell /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_exit/enable

    chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_enter/enable

    chown root shell /sys/kernel/debug/tracing/events/f2fs/f2fs_write_begin/enable

    chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_sync_file_exit/enable

    chown root shell /sys/kernel/debug/tracing/events/f2fs/f2fs_write_end/enable

    chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_exit/enable

    chown root shell /sys/kernel/debug/tracing/events/ext4/ext4_da_write_begin/enable

    chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_write_begin/enable

    chown root shell /sys/kernel/debug/tracing/events/ext4/ext4_da_write_end/enable

    chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_begin/enable

    chown root shell /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable

    chmod 0666 /sys/kernel/tracing/events/f2fs/f2fs_write_end/enable

    chown root shell /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_exit/enable

    chmod 0666 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_end/enable

    chown root shell /sys/kernel/debug/tracing/events/block/block_rq_issue/enable

    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_da_write_begin/enable

    chown root shell /sys/kernel/debug/tracing/events/block/block_rq_complete/enable

    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_begin/enable



    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_da_write_end/enable

    chmod 0664 /sys/kernel/debug/tracing/events/sync/enable

    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_end/enable

    chmod 0664 /sys/kernel/debug/tracing/events/workqueue/enable

    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_sync_file_enter/enable

    chmod 0664 /sys/kernel/debug/tracing/events/regulator/enable

    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable

    chmod 0664 /sys/kernel/debug/tracing/events/pagecache/enable

    chmod 0666 /sys/kernel/tracing/events/ext4/ext4_sync_file_exit/enable



    chmod 0666 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_exit/enable

    # irq

    chmod 0666 /sys/kernel/tracing/events/block/block_rq_issue/enable

    chmod 0664 /sys/kernel/debug/tracing/events/irq/enable

    chmod 0666 /sys/kernel/debug/tracing/events/block/block_rq_issue/enable

    chmod 0664 /sys/kernel/debug/tracing/events/ipi/enable

    chmod 0666 /sys/kernel/tracing/events/block/block_rq_complete/enable



    chmod 0666 /sys/kernel/debug/tracing/events/block/block_rq_complete/enable
 
    # disk

    chmod 0664 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_enter/enable

    chmod 0664 /sys/kernel/debug/tracing/events/f2fs/f2fs_sync_file_exit/enable

    chmod 0664 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_begin/enable

    chmod 0664 /sys/kernel/debug/tracing/events/f2fs/f2fs_write_end/enable

    chmod 0664 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_begin/enable

    chmod 0664 /sys/kernel/debug/tracing/events/ext4/ext4_da_write_end/enable

    chmod 0664 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_enter/enable

    chmod 0664 /sys/kernel/debug/tracing/events/ext4/ext4_sync_file_exit/enable

    chmod 0664 /sys/kernel/debug/tracing/events/block/block_rq_issue/enable

    chmod 0664 /sys/kernel/debug/tracing/events/block/block_rq_complete/enable