Task Notes Polution

[Fernando RUIZ CASAS (E-mail)]

Hi rtems-users.

Working in a reduced network-protocol
when a new shell task is created over a pseudo-terminal (ptn)
the TASK NOTES have been corrupted.

But only TWO task. The others tasks have not been corrupted.

Setting the CONFIGURE_EXTRA_TASK_STACKS and CONFIGURE_MEMORY_OVERHEAD
Increasing the task_stack in the shell_stack task and more tries but...

The task notes continue corrupted.

Which is the parameter to touch in order to avoid this problem?
Where is the first place to see?

Only the two first tasks have been corrupted.
I think that the code (it's the same for all the ptnX tasks) is good.


*********************Here the capture***************************************

RTEMS SHELL (Ver.1.0-FRC):/dev/ptn7. Jun  6 2001. 'help' to list commands.
ptn7 [/] #
ptn7 [/] # task
  ID       NAME   PRIO   STAT   MODES  EVENTS   WAITID  WAITARG  NOTES
----------------------------------------------------------------------------
--
08010002   WDCT     1   DELAY  P:T:nA  NONE
08010003   net0     8   Wsem   P:T:nA  NONE    18010029  0xa0b3b10
08010004   net1     8   Wsem   P:T:nA  NONE    18010031  0xa0b3b10
08010005   tMST     8   READY  P:T:nA  NONE
08010006   tSLV     8   Wevnt  P:T:nA  NONE
08010007   tVIS     8   DELAY  P:T:nA  NONE
08010009   ptn0     8   Wsem   P:T:nA  NONE    1801000d  0xa0b3b10 0: 0x1388
1: 0x18 2: 0x5ffffc5 4: 0xa6a 5: 0xa01b82a 6: 0x100 7: 0xa01aa46 8:
0xa0f8a88 14: 0xa046420 15: 0xa0f8af8
0801000a   ptn1     8   Wsem   P:T:nA  NONE    18010010  0xa0b3b10 0:
0xa02d076 1: 0xa0f88bc 2: 0xa009c80 3: 0xa0f88d0 4: 0x1b4 5: 0x4 6:
0xa0f88e4 7: 0xa0f88d0 8: 0xa02e42c 9: 0xa0f88c8 10: 0xa0f8a80 11: 0xa0f88d4
13: 0xa0f88dc
0801000b   ptn2     8   Wsem   P:T:nA  NONE    18010013  0xa0b3b10
0801000c   ptn3     8   Wsem   P:T:nA  NONE    18010016  0xa0b3b10
0801000d   ptn4     8   Wsem   P:T:nA  NONE    18010019  0xa0b3b10
0801000e   ptn5     8   Wsem   P:T:nA  NONE    1801001c  0xa0b3b10
0801000f   ptn6     8   Wsem   P:T:nA  NONE    1801001f  0xa0b3b10
08010011   ptn7     8   READY  P:T:nA  NONE    18010030  0xa0b3b10
ptn7 [/] # config
config
INITIAL (startup) Configuration Info
----------------------------------------------------------------------------
--
WORKSPACE      start: 0xa066ce8;  size: 0x99318
TIME           usec/tick: 10000;  tick/timeslice: 50;  tick/sec: 100
MAXIMUMS       tasks: 20;  timers: 2;  sems: 106;  que's: 0;  ext's: 1
               partitions: 0;  regions: 1;  ports: 0;  periods: 0
ptn1 [/] # malloc
Malloc stats
  avail:128k  allocated:94k (74%) max:95k (74%) lifetime:0k freed:141k
  Call counts:   malloc:183   free:52   realloc:0   calloc:52
ptn1 [/] #

***************************************************************************
After EXIT from the 'corrupted' tasks
***************************************************************************
ptn0 [/] # exit
exit
logoff from the system...
Goodbye from RTEMS SHELL :-(

ptn7 [/] # task
task
  ID       NAME   PRIO   STAT   MODES  EVENTS   WAITID  WAITARG  NOTES
----------------------------------------------------------------------------
--
08010002   WDCT     1   DELAY  P:T:nA  NONE
08010003   net0     8   Wsem   P:T:nA  NONE    18010029  0xa0b3b10
08010004   net1     8   Wsem   P:T:nA  NONE    18010031  0xa0b3b10
08010005   tMST     8   READY  P:T:nA  NONE
08010006   tSLV     8   Wevnt  P:T:nA  NONE
08010007   tVIS     8   DELAY  P:T:nA  NONE
0801000b   ptn2     8   Wsem   P:T:nA  NONE    18010013  0xa0b3b10
0801000c   ptn3     8   Wsem   P:T:nA  NONE    18010016  0xa0b3b10
0801000d   ptn4     8   Wsem   P:T:nA  NONE    18010019  0xa0b3b10
0801000e   ptn5     8   Wsem   P:T:nA  NONE    1801001c  0xa0b3b10
0801000f   ptn6     8   Wsem   P:T:nA  NONE    1801001f  0xa0b3b10
08010011   ptn7     8   READY  P:T:nA  NONE    18010030  0xa0b3b10
ptn7 [/] #

***************************************************************************
After Reenter in the two ptnX Closed
***************************************************************************
ptn1 [/] # task
task
  ID       NAME   PRIO   STAT   MODES  EVENTS   WAITID  WAITARG  NOTES
----------------------------------------------------------------------------
--
08010002   WDCT     1   DELAY  P:T:nA  NONE
08010003   net0     8   Wsem   P:T:nA  NONE    18010029  0xa0abb00
08010004   net1     8   Wsem   P:T:nA  NONE    18010031  0xa0abb00
08010005   tMST     8   READY  P:T:nA  NONE
08010006   tSLV     8   Wevnt  P:T:nA  NONE
08010007   tVIS     8   DELAY  P:T:nA  NONE
0801000b   ptn2     8   Wsem   P:T:nA  NONE    18010013  0xa0abb00
0801000c   ptn3     8   Wsem   P:T:nA  NONE    18010016  0xa0abb00
0801000d   ptn4     8   Wsem   P:T:nA  NONE    18010019  0xa0abb00
0801000e   ptn5     8   Wsem   P:T:nA  NONE    1801001c  0xa0abb00
0801000f   ptn6     8   Wsem   P:T:nA  NONE    1801001f  0xa0abb00
08010011   ptn7     8   Wsem   P:T:nA  NONE    18010022  0xa0abb00
08010012   ptn0     8   Wsem   P:T:nA  NONE    1801000d  0xa0abb00
08010013   ptn1     8   READY  P:T:nA  NONE    18010028  0xa0abb00
ptn1 [/] #
***************************************************************************
Now all seems OK. Bizarrous problem. I'm confused.