Fixed bug #1105.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_20.3.x@13721 27425a3e-05d8-49a3-a47f-9c15f0e5edd8

os/rt/src/chschd.c

@@ -582,7 +582,7 @@ void chSchDoReschedule(void) {
 #if CH_CFG_TIME_QUANTUM > 0
   /* If CH_CFG_TIME_QUANTUM is enabled then there are two different scenarios
      to handle on preemption: time quantum elapsed or not.*/
-  if (currp->ticks == (tslices_t)0) {
+  if (otp->ticks == (tslices_t)0) {
 
     /* The thread consumed its time quantum so it is enqueued behind threads
        with same priority level, however, it acquires a new time quantum.*/

readme.txt

@@ -74,6 +74,8 @@
 *****************************************************************************
 
 *** 20.3.2 ***
+- FIX: Schedule anomaly when CH_CFG_TIME_QUANTUM is greater than zero
+       (bug #1105).
 - FIX: Fixed Virtual Timers corner case (bug #1104).
 - FIX: Fixed GCC6 problem breaks Cortex-M0 port (bug #985).
 - FIX: Fixed a wrong management of the SPI TX buffer in the ADUCM port