Re: chSysHalt (reason=0x8001918 "SV#8")
Posted: Fri Mar 29, 2019 12:01 pm
OK, let me know. SV#8 would be something related to IRQs anyway.
Giovanni
Giovanni
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chSysHalt (reason=0x8001918 "SV#8")
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Re: chSysHalt (reason=0x8001918 "SV#8")
Posted: Fri Mar 29, 2019 12:36 pm
Also, I have CH_DBG_STATISTICS enabled, could this be a potential issue? As long as I can tell, nope, but...
Re: chSysHalt (reason=0x8001918 "SV#8")
Posted: Fri Mar 29, 2019 1:32 pm
It should not be a problem, easy to disable it and check anyway.
Do a stack trace after the system is halted, that should give us hints.
Giovanni
Do a stack trace after the system is halted, that should give us hints.
Giovanni
Re: chSysHalt (reason=0x8001918 "SV#8")
Posted: Fri Mar 29, 2019 1:53 pm
I have this stacktrace from the first test:
Looks like a problem on TIM, but I'll check... Don't know if helps.
I'll have access to the boards only tonight, I'm GMT-3, so will take time. But I'll let you know.
Code: Select all
bt
#0 chSysHalt (reason=0x8001918 "SV#8") at ./lib/chibios/os/rt/src/chsys.c:213
#1 _dbg_check_enter_isr () at ./lib/chibios/os/rt/src/chdebug.c:204
#2 0x080013f0 in VectorB0 () at ./lib/chibios/os/hal/ports/STM32/LLD/TIMv1/hal_st_lld.c:255
#3 <signal handler called>
#4 0x55555554 in ?? ()
Looks like a problem on TIM, but I'll check... Don't know if helps.
I'll have access to the boards only tonight, I'm GMT-3, so will take time. But I'll let you know.
Re: chSysHalt (reason=0x8001918 "SV#8")
Posted: Fri Mar 29, 2019 6:29 pm
As supposed it looks IRQ-related, check priorities, for some reasons there is something not right. Are you mixing files from different ChibiOS versions?
Giovanni
Giovanni
Re: chSysHalt (reason=0x8001918 "SV#8")
Posted: Fri Mar 29, 2019 6:34 pm
No, but i'm using trunk(Actualy, I'm using Alexandre's github sync, https://github.com/alex31/chibios_svn_mirror/).
Everything is stock. I'll try to revert to a specific version and see what happens.
Will try also the demo(For Maple board) to see if this happens too.
Also, will break after chibios init and inspect IRQ registers, really weird thing.
Everything is stock. I'll try to revert to a specific version and see what happens.
Will try also the demo(For Maple board) to see if this happens too.
Also, will break after chibios init and inspect IRQ registers, really weird thing.
Re: chSysHalt (reason=0x8001918 "SV#8")
Posted: Sat Mar 30, 2019 12:42 am
I found why it is crashing 
My app's main:
In GDB I added 2 breakpoints, _dbg_check_lock and _dbg_check_unlock(I changed functions to NOINLINE, just in case):
As we can see, several lock/unlock sequences, in the last call to _dbg_check_lock, is in fact from chThdSleepMilliseconds, thus, locking the system, when the SysTick IRQ is handled, the system is locked, so the SV#8.
If I create an empty thread, another crash happens, SV#4.
My app's main:
Code: Select all
int main(void)
{
// System initialization
halInit();
chSysInit();
// App initialization
mainInit();
while (true)
{
palToggleLine(LINE_ONBOARD_LED);
chThdSleepMilliseconds(100);
}
}
In GDB I added 2 breakpoints, _dbg_check_lock and _dbg_check_unlock(I changed functions to NOINLINE, just in case):
Code: Select all
(gdb) start
Temporary breakpoint 12 at 0x8000840: file ./lib/chibios/os/hal/ports/STM32/STM32F1xx/hal_lld.c, line 135.
Starting program: /Users/terciofilho/Code/f1template/out/TEMPLATE.elf
Breakpoint 5, main () at ./src/main.c:30
30 halInit();
(gdb) c
Continuing.
Breakpoint 1, _dbg_check_lock () at ./lib/chibios/os/rt/src/chdebug.c:150
150 if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
(gdb) c
Continuing.
Breakpoint 2, _dbg_check_unlock () at ./lib/chibios/os/rt/src/chdebug.c:163
163 if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt <= (cnt_t)0)) {
(gdb) c
Continuing.
Breakpoint 1, _dbg_check_lock () at ./lib/chibios/os/rt/src/chdebug.c:150
150 if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
(gdb) c
Continuing.
Breakpoint 2, _dbg_check_unlock () at ./lib/chibios/os/rt/src/chdebug.c:163
163 if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt <= (cnt_t)0)) {
(gdb) c
Continuing.
Breakpoint 1, _dbg_check_lock () at ./lib/chibios/os/rt/src/chdebug.c:150
150 if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
(gdb) c
Continuing.
Breakpoint 2, _dbg_check_unlock () at ./lib/chibios/os/rt/src/chdebug.c:163
163 if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt <= (cnt_t)0)) {
(gdb) c
Continuing.
Breakpoint 1, _dbg_check_lock () at ./lib/chibios/os/rt/src/chdebug.c:150
150 if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
(gdb) c
Continuing.
Breakpoint 2, _dbg_check_unlock () at ./lib/chibios/os/rt/src/chdebug.c:163
163 if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt <= (cnt_t)0)) {
(gdb) c
Continuing.
Breakpoint 1, _dbg_check_lock () at ./lib/chibios/os/rt/src/chdebug.c:150
150 if ((ch.dbg.isr_cnt != (cnt_t)0) || (ch.dbg.lock_cnt != (cnt_t)0)) {
(gdb) bt
#0 _dbg_check_lock () at ./lib/chibios/os/rt/src/chdebug.c:150
#1 0x08000dc6 in chSysLock () at ./lib/chibios/os/rt/src/chthreads.c:651
#2 chThdSleep (time=120) at ./lib/chibios/os/rt/src/chthreads.c:653
#3 main () at ./src/main.c:40
(gdb) c
Continuing.
^C
Program received signal SIGINT, Interrupt.
chSysHalt (reason=0x8001918 "SV#8") at ./lib/chibios/os/rt/src/chsys.c:213
213 }
(gdb)
As we can see, several lock/unlock sequences, in the last call to _dbg_check_lock, is in fact from chThdSleepMilliseconds, thus, locking the system, when the SysTick IRQ is handled, the system is locked, so the SV#8.
If I create an empty thread, another crash happens, SV#4.
Code: Select all
static THD_WORKING_AREA(waThread1, 128);
static __attribute__((noreturn)) THD_FUNCTION(Thread1, arg)
{
(void)arg;
chRegSetThreadName("blinker");
while (true)
{
palToggleLine(LINE_ONBOARD_LED);
chThdSleepMilliseconds(100);
}
}
int main(void)
{
// System initialization
halInit();
chSysInit();
// App initialization
mainInit();
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
while (true)
{
chThdSleepMilliseconds(100);
}
}
Code: Select all
chSysHalt (reason=0x8001ab4 "SV#4") at ./lib/chibios/os/rt/src/chsys.c:213
(gdb) bt
#0 chSysHalt (reason=0x8001ab4 "SV#4") at ./lib/chibios/os/rt/src/chsys.c:213
#1 _dbg_check_lock () at ./lib/chibios/os/rt/src/chdebug.c:151
#2 0x08000994 in chSysLock () at ./lib/chibios/os/rt/src/chthreads.c:651
#3 chThdSleep (time=200) at ./lib/chibios/os/rt/src/chthreads.c:653
#4 Thread1 (arg=<optimized out>) at ./src/main.c:35
#5 0x0800025e in _port_thread_start () at ./lib/chibios/os/common/ports/ARMCMx/compilers/GCC/chcoreasm_v7m.S:119
Re: chSysHalt (reason=0x8001918 "SV#8")
Posted: Sat Mar 30, 2019 1:36 am
Found the issue.
Happen to be that I included my appconf.h(Which has all the defines for debug/release) in chconf.h. The CH_DBG_SYSTEM_STATE_CHECK wasn't defined inside chconf.h, but outside in appconf.h
Fixed by moving all my defines from appconf.h to UDEFS in Makefile. Isn't my best option, but fixed the problem.
Thanks for your time.
Happen to be that I included my appconf.h(Which has all the defines for debug/release) in chconf.h. The CH_DBG_SYSTEM_STATE_CHECK wasn't defined inside chconf.h, but outside in appconf.h
Fixed by moving all my defines from appconf.h to UDEFS in Makefile. Isn't my best option, but fixed the problem.
Thanks for your time.