Out of memory: Killed process xxxx (gcsf)

While copying large (4GB) file from mounted folder to my local disk I am seeing OOM kill.

Looks like gcsf is keeping all files in memory.
I tried reducing values of cache_max_seconds , cache_max_items and cache_statfs_seconds but noo luck.

Start by reproducing the large-file copy described in the issue and tracing how cache_max_seconds, cache_max_items, and cache_statfs_seconds affect memory use. The issue names no files or tests; done means copying a 4GB file from the mounted folder without gcsf being killed by the OOM handler.

Written by the indexing model from the issue text.