[En-Nut-Discussion] Re: [btnode-development] Re: Nut errors!?

[Lukas Winterhalter]

Hi,

I posted about these problems in the BTnut list already. Now I've 
removed all BTnut specific code from the two attached test apps. They 
are plain Nut/OS now and produce still the same errors. (Running on 
Atmega128L CPU (BTnode3))

crash_timers: ########################

- two worker threads that synhronize each other with
NutEventPost/NutEventWait

- a sleeper thread that sleeps all the time
- terminal thread

PROBLEM:
NutDumpTimerList() prints out garbage.

REPRODUCE:
1. just start the crash_timers app

crash_termthread: ########################
- sleeper threads
- terminal thread

PROBLEM:
main thread (terminal) enters sleep mode and never wakes up. Argh!

REPRODUCE:
send a text file (20-100KB) over your terminal program. This
generates output of the form:

LINE 178
LINE 179
LINE 180
LINE 181

After a short time (some seconds) this output gets interrupted suddenly 
while still receiving text data. The status thread will still print the 
thread table every 5 seconds. it will now
print something like this:

Hndl Name     Prio Sta QUE  Timr StkP FreeMem
2DDE status     64 RUN 0294 0000 2DBE   992 OK 2DDE 0457
29C1 sleeper8   64 SLP 0000 2E5F 29A1   992 OK
25A4 sleeper7   64 SLP 0000 2E0F 2584   992 OK
2187 sleeper6   64 SLP 0000 2E87 2167   992 OK
1D6A sleeper5   64 SLP 0000 2E73 1D4A   992 OK
194D sleeper4   64 SLP 0000 2E37 192D   992 OK
1530 sleeper3   64 SLP 0000 2DFB 1510   992 OK
1113 sleeper2   64 SLP 0000 2E5F 10F3   992 OK
0CF6 sleeper1   64 SLP 0000 2E23 0CD6   992 OK
0774 main       64 SLP 01F7 0000 06BC   584 OK
0457 idle      254 RDY 0294 0000 043B   356 OK 2DDE 0457
Addr Ticks  Left Callback
2DFB     0    46 NutThreadWake(1530)
2E0F     0     2 NutThreadWake(25A4)
2E23     0     0 NutThreadWake(0CF6)
2E37     0     4 NutThreadWake(194D)
2E4B     0     1 NutThreadWake(1113)
2E5F     0     0 NutThreadWake(29C1)
2E73     0     1 NutThreadWake(1D6A)
2E87     0     2 NutThreadWake(2187)

Notice that colon 'QUE' (waiting queue) has a
nonzero entry for thread 'main', however its contents are not shown on
the right side after the 'FreeMem' colon???

######################################

Perhaps these two bugs have the same origin. I suspect that something is 
wrong with timers and/or events.

Regards,
Lukas Winterhalter







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