compressbuff

hey, I'm running a WordPress site on OpenLiteSpeed 1.7.12. I can see this error in the logs (lsws/logs/error.log) once or twice a day. what does it mean please? [....#wordpress] [modcompress---] compressbuf in 16384, return -1 (written 0, flag in 0) Might not be related, but the server is...