17 Feb
2017
17 Feb
'17
6:45 p.m.
On Fri, 17 Feb 2017 08:15:56 +0100, sutar.mounesh@gmail.com wrote:
From: Andreas Pape apape@de.adit-jv.com
snd_timer handling is racy: plugins clear timer queue if avail_min is not reached to force a sleep on timer. The race can happen if the expected event arrives in between the avail check and the clearing of pending events. If this race happens, the user will unnecessarily wait for one more timer event. On low latency/realtime streams this can lead to xruns and must be avoided.
As a fix we recheck avail after having cleared poll events.
Signed-off-by: Andreas Pape apape@de.adit-jv.com Signed-off-by: Jiada Wang jiada_wang@mentor.com Signed-off-by: Mounesh Sutar sutar.mounesh@gmail.com
Applied, thanks.
Takashi