1. Step 1: Delete the temporary lftp file.
After entering the storage mode, run the cd /.lftp command to check whether the transfer_log file exists in the directory. If yes, check the file size and delete it.
After the deletion, check the remaining memory space. If the remaining memory is still insufficient, go to step 2.
Step 2: Attempt to release memory.
Go to the debug mode and run the echo freepages > /proc/osp/bsp command to release the memory.
After the command is executed successfully, run the free -m command to check whether the free memory is released.
If the release fails, run the echo 3 > /proc/sys/vm/drop_caches command to release the memory.