Hi, I have been trying to debug sp16 for the last few days. I am using the new Strong APA scheduler we worked on during this GSoC. The scheduler fails only for the following tests:
sp02.exe sp16.exe sp30.exe sp31.exe sp37.exe sp42.exe spfatal29.exe tm24.exe On executing sp16.exe, I get the following output: *** BEGIN OF TEST SP 16 *** *** TEST VERSION: 5.0.0.61ccb9c05dcd695114541960aa6bfc1315f30514-modified *** TEST STATE: EXPECTED_PASS *** TEST BUILD: RTEMS_NETWORKING RTEMS_POSIX_API RTEMS_SMP *** TEST TOOLS: 7.5.0 20191114 (RTEMS 5, RSB 5 (0b7e87143b76), Newlib fbaa096) TA1 - rtems_region_ident - rnid => 32010001 TA1 - rtems_region_get_segment - wait on 1000 byte segment from region 2 TA1 - got segment from region 2 - 0x00000040 TA1 - rtems_region_get_segment - wait on 3K segment from region 3 TA1 - got segment from region 3 - 0x00000080 TA1 - rtems_region_get_segment - get 3080 byte segment from region 1 - NO_WAIT TA1 - got segment from region 1 - 0x00000040 TA1 - rtems_task_wake_after - yield processor TA2 - rtems_region_get_segment - wait on 2K segment from region 1 TA1 - rtems_region_return_segment - return segment to region 1 - 0x00000040 TA1 - rtems_region_get_segment - wait 10 seconds for 3K segment from region 1 TA2 - got segment from region 1 - 0x00000040 TA2 - rtems_region_return_segment - return segment to region 1 - 0x00000040 TA2 - rtems_task_set_priority - make self highest priority task TA2 - rtems_region_get_segment - wait on 3750 byte segment TA1 - got segment from region 1 - 0x00000040 TA1 - rtems_region_return_segment - return segment to region 2 - 0x00000040 TA2 - got segment from region 2 - 0x00000040 TA2 - rtems_region_return_segment - return segment to region 2 - 0x00000040 TA2 - rtems_task_exit TA1 - rtems_task_wake_after - yield processor TA3 - rtems_region_get_segment - wait on 3750 byte segment from region 2 TA3 - got segment from region 2 - 0x00000040 TA3 - rtems_region_get_segment - wait on 2K segment from region 3 TA1 - rtems_task_delete - delete TA3 TA1 - rtems_task_wake_after - yield processor TA4 - rtems_region_get_segment - wait on 1.5K segment from region 1 TA5 - rtems_region_get_segment - wait on 1.5K segment from region 1 TA1 - rtems_region_return_segment - return segment to region 1 - 0x00000040 TA1 - rtems_task_wake_after - yield processor TA4 - got and returned 0x00000040 TA5 - got and returned 0x000006c0 TA1 - rtems_region_get_segment - wait 10 seconds for 3K segment from region 1 TA1 - got segment from region 1 - 0x00000040 TA1 - rtems_task_wake_after - yield processor TA4 - rtems_region_get_segment - wait on 3K segment from region 1 TA5 - rtems_region_get_segment - wait on 3K segment from region 1 TA1 - rtems_task_delete - delete TA4 TA1 - rtems_region_return_segment - return segment to region 1 - 0x00000040 TA1 - rtems_task_wake_after - yield processor TA5 - got segment from region 1 - 0x00000040 TA5 - rtems_region_return_segment - return segment to region 1 - 0x00000040 TA5 - rtems_task_exit and it doesn't progress further from here. It gets stuck in some kind of loop. While debugging with gdb, I realized the loop is: Clock_isr (arg=0x0) at /home/richi/quick-start/src/rtems/bsps/arm/include/../../shared/dev/clock/clockimpl.h:155 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x001042fa 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x001042fc 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x001042fe 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104302 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104304 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104306 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x0010430a 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 154 while ( (gdb) 0x0010430e 154 while ( (gdb) 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104314 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104316 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104318 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x0010431c 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x0010431e 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104322 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104324 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 159 _Timecounter_Acquire(&lock_context); (gdb) 0x001042d2 159 _Timecounter_Acquire(&lock_context); (gdb) 0x001042d4 159 _Timecounter_Acquire(&lock_context); (gdb) 0x001042d8 159 _Timecounter_Acquire(&lock_context); (gdb) 0x001042dc 159 _Timecounter_Acquire(&lock_context); (gdb) 162 (*tc->tc_get_timecount)(tc), (gdb) 0x001042e2 162 (*tc->tc_get_timecount)(tc), (gdb) 160 _Timecounter_Tick_simple( (gdb) 0x001042e6 160 _Timecounter_Tick_simple( (gdb) 0x001042e8 160 _Timecounter_Tick_simple( (gdb) 0x001042ea 160 _Timecounter_Tick_simple( (gdb) 0x001042ee 160 _Timecounter_Tick_simple( (gdb) 0x001042f0 160 _Timecounter_Tick_simple( (gdb) 0x001042f2 160 _Timecounter_Tick_simple( (gdb) 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x001042fa 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x001042fc 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x001042fe 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104302 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104304 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104306 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x0010430a 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 154 while ( (gdb) 0x0010430e 154 while ( (gdb) 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104314 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104316 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104318 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x0010431c 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x0010431e 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104322 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 0x00104324 155 _Thread_Heir == _Thread_Executing && _Thread_Executing->is_idle (gdb) 159 _Timecounter_Acquire(&lock_context); (gdb) 0x001042d2 159 _Timecounter_Acquire(&lock_context); (gdb) 0x001042d4 159 _Timecounter_Acquire(&lock_context); (gdb) 0x001042d8 159 _Timecounter_Acquire(&lock_context); (gdb) 0x001042dc 159 _Timecounter_Acquire(&lock_context); (gdb) 162 (*tc->tc_get_timecount)(tc), (gdb) 0x001042e2 162 (*tc->tc_get_timecount)(tc), and so on... I cannot figure out what is wrong. Like Dr. Sherill suggested in a different .exe debug earlier, I set breakpoints and checked values of variables passed to the function and it all looks okay. I am quite sure this is because of the scheduler. How do I progress further? Please let me know. Thanks, Richi.
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