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Unable to locate trace log file used by api "trace_ext4_discard_blocks"
I am trying to find the log file which is generated by "fstrim" /kernel/fs/ext4/fstrim.c.
The android Framework gives me the error saying fstrim failed:
"Failed to run FSTRIMcom.android.server.NativeDaemonConnectorException: missing output stream"
But in the backend the FITRIM ioctl is called and trimming does take place.
So i need to find where does this api "trace_ext4_discard_blocks" store this log file, Or how can i know what is stored in this log file.
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