The relevant part of syslog looked like this:
Sep 30 23:25:24 minipc kernel: [ 221.263583] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.263698] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.263797] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.263903] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.263995] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.745701] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.745793] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.745890] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.745979] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746070] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746157] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746252] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746341] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746428] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746516] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746623] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746715] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746804] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746895] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.746985] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.747086] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.747174] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:24 minipc kernel: [ 221.747268] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL! Sep 30 23:25:34 minipc systemd[1]: Reloading.
The relevant part of syslog looked like this:
Sep 30 23:25:24 minipc kernel: [ 221.263583] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.263698] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.263797] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.263903] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.263995] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.745701] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.745793] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.745890] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.745979] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746070] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746157] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746252] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746341] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746428] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746516] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746623] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746715] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746804] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746895] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.746985] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.747086] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.747174] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:24 minipc kernel: [ 221.747268] RTL8723BS: ERROR sd_recv_rxfifo: alloc recvbuf FAIL!
Sep 30 23:25:34 minipc systemd[1]: Reloading.