[syslog-ng] where does this mean in log status

[fedora fedora]

I have a syslog-ng server running and i noticed in the stats info there are
some big number of log gets dropped, see below.

Log statistics; dropped='pipe(/dev/xconsole)=542760'

Can someone tell me what exactly is /dev/xconsole? what it drops so many
logs?

Thanks

FD
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