Discovered a situation where the value, uxPendedTicks in tasks.c, can underflow and hang the task switching.
Was running version 7.6.0 and using the STM M3 core port.
Added a patch at around line 1413 (following the decrement of uxPendedTicks) as follows:
if (0 != (uxPendedTicks & 0x10000000))
{
uxPendedTicks = 0; // MAD: THIS SHOULD NOT HAVE HAPPENED!!!!!
}
To be honest, I don't know what induced the conditions that could cause this underflow, but the above covered it up if nothing else.
Cheers,
KagnewKid.
Somehow my comment prior to closing this seems to have gone missing. Basically it said - thanks for reporting this, but please discuss the issue in the support forum before opening a bug report so we can talk through the scenario that led to the issue, and hopefully find the resolution. If the resolution turns out to be that a bug needs fixing, then we can re-open this ticket.