Linux app ram leak?

My ram is only 1 gig on the Allo.
When I play music the ram usage after a few songs gets all the way to 100% at which point Linux freezes up entirely.

My cache size is set to 258,Mb
But as you can clearly see by max cache size their an obvious issue.

Card is 128Gb micro SD that Linux is installed on (Gentoo player)
Not sure if ram leak, cache file reading / writing error or I’d the Allo is judtvnkgij enough for audirvana.